Article(id=1149670641139364539, tenantId=1146029695717560320, journalId=1146123222451335185, issueId=1149670639897854094, articleNumber=1671-1807(2025)10-0111-07, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1728403200000, receivedDateStr=2024-10-09, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1752032440694, onlineDateStr=2025-07-09, pubDate=1748102400000, pubDateStr=2025-05-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1752032440694, onlineIssueDateStr=2025-07-09, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1752032440694, creator=13701087609, updateTime=1752032440694, updator=13701087609, issue=Issue{id=1149670639897854094, tenantId=1146029695717560320, journalId=1146123222451335185, year='2025', volume='25', issue='10', pageStart='1', pageEnd='377', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1752032440399, creator=13701087609, updateTime=1756780756355, updator=15831073675, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1169586520596947842, tenantId=1146029695717560320, journalId=1146123222451335185, issueId=1149670639897854094, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1169586520596947843, tenantId=1146029695717560320, journalId=1146123222451335185, issueId=1149670639897854094, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=111, endPage=117, ext={EN=ArticleExt(id=1151877660155670569, articleId=1149670641139364539, tenantId=1146029695717560320, journalId=1146123222451335185, language=EN, title=Application and Practice of Reservoir Water Blocking Prevention Technologies in Tight Sandstone Gas Reservoirs in the Southern Margin of Ordos, columnId=1151877659354558495, journalTitle=Science Technology and Industry, columnName=Regional Practice, runingTitle=null, highlight=null, articleAbstract=

Water blocking damage is a common issue in the development of tight sandstone gas reservoirs, significantly impacting gas well production and reservoir recovery rates. Taking the gas reservoirs in the southern margin of Ordos as an example, the degree of water blocking damage in the gas reservoirs was analyzed, the typical production characteristics of gas wells with water blocking damage in tight gas reservoirs was discussed, and technologies were proposed for the prevention and treatment of reservoir water blocking. The research results indicate that the gas reservoirs in the southern margin of Ordos experience moderate to strong water blocking damage. After water blocking, gas wells exhibit production characteristics such as insignificant production increase after fracturing, inability to restore production after reopening the well following shutdown, and limited effectiveness of wellbore drainage measures. To effectively prevent and treat water blocking damage, comprehensive prevention and treatment methods are proposed, including the use of small-diameter coiled tubing to avoid premature fluid accumulation in gas wells, maintaining continuous and stable production, and implementing physicochemical processes to eliminate water blocking damage. Field test results demonstrate that the integrated application of these methods can effectively prevent and eliminate water blocking damage, thereby restoring gas well production.

, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Yingfei WEI, Ming LI, Xianfeng BAI, Junfeng WANG, Yongbo CAO, Zhenguo GAO), CN=ArticleExt(id=1151877691717808194, articleId=1149670641139364539, tenantId=1146029695717560320, journalId=1146123222451335185, language=CN, title=鄂尔多斯南缘致密砂岩气藏储层水锁防治技术应用与实践, columnId=1151877659916595238, journalTitle=科技和产业, columnName=区域实践, runingTitle=null, highlight=null, articleAbstract=

致密砂岩气藏在开发过程中水锁伤害是一个普遍存在的问题,对气井产量和气藏采收率具有严重影响。以鄂尔多斯南缘气藏为例,深入分析了气藏水锁伤害程度,探讨了致密气藏水锁伤害气井的典型生产特征,提出了创新的储层水锁防治工艺,包括使用小尺寸连续油管和保持连续稳定生产等物理措施避免气井过早发生水锁伤害。对于已发生水锁伤害的气井,提出使用了表面活性剂和润湿改性剂作为解水锁剂的重要组成,并用邻井气作为气源进行增压注入的方法,以确保解水锁剂能够快速有效地注入储层并发挥作用。研究结果表明,鄂尔多斯南缘气藏存在中等偏强-强水锁伤害情况,水锁后气井表现出压裂后增产效果不明显、关井后再次开井产量无法恢复以及井筒排液等措施效果有限等生产特征。综合应用这些方法可以有效防止和解除水锁伤害,现场试验效果明显。

, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=qwo7P+aGq4jU+LJl5qme9g==, magXml=kca5g1wPAa+ML9YCCczItg==, pdfUrl=null, pdf=CIWSfFDzKjy3owpfWBa8lg==, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=iI9KFrhfTuXrsF905Qd8Vw==, mapNumber=null, authorCompany=null, fund=null, authors=

卫颖菲(1988—),女,陕西韩城人,硕士,工程师,研究方向为油气田勘探开发及完井压裂技术;

李明(1980—),男,黑龙江安达人,硕士,高级工程师,研究方向为油气田勘探开发及完井压裂技术;

柏险峰(1972—),陕西西安人,高级工程师,研究方向为油气田勘探开发及完井压裂技术;

王军峰(1987—),男,陕西榆林人,硕士,高级工程师,研究方向为油气田勘探开发及完井压裂技术;

曹永波(1984—),男,陕西榆林人,高级工程师,研究方向为油气田勘探开发及完井压裂技术;

高振国(1999—),男,甘肃平凉人,工程师,研究方向为油气田勘探开发及完井压裂技术。

, authorsList=卫颖菲, 李明, 柏险峰, 王军峰, 曹永波, 高振国)}, authors=[Author(id=1173173760346702733, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1173173760409617295, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, authorId=1173173760346702733, language=EN, stringName=Yingfei WEI, firstName=Yingfei, middleName=null, lastName=WEI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, address=1. Schlumberger Changhe Oilfield Engineering Co. Ltd., Xi’an 710021, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1173173760493503376, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, authorId=1173173760346702733, language=CN, stringName=卫颖菲, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, address=1. 斯伦贝谢长和油田工程有限公司, 西安 710021, bio={"content":"

卫颖菲(1988—),女,陕西韩城人,硕士,工程师,研究方向为油气田勘探开发及完井压裂技术;

"}, bioImg=null, bioContent=

卫颖菲(1988—),女,陕西韩城人,硕士,工程师,研究方向为油气田勘探开发及完井压裂技术;

, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1173173760065684355, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, xref=null, ext=[AuthorCompanyExt(id=1173173760074072964, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, companyId=1173173760065684355, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1. Schlumberger Changhe Oilfield Engineering Co. Ltd., Xi’an 710021, China), AuthorCompanyExt(id=1173173760082461573, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, companyId=1173173760065684355, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1. 斯伦贝谢长和油田工程有限公司, 西安 710021)])]), Author(id=1173173760564806546, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, orderNo=1, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1173173760631915412, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, authorId=1173173760564806546, language=EN, stringName=Ming LI, firstName=Ming, middleName=null, lastName=LI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, address=1. Schlumberger Changhe Oilfield Engineering Co. Ltd., Xi’an 710021, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1173173760703218581, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, authorId=1173173760564806546, language=CN, stringName=李明, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, address=1. 斯伦贝谢长和油田工程有限公司, 西安 710021, bio={"content":"

李明(1980—),男,黑龙江安达人,硕士,高级工程师,研究方向为油气田勘探开发及完井压裂技术;

"}, bioImg=null, bioContent=

李明(1980—),男,黑龙江安达人,硕士,高级工程师,研究方向为油气田勘探开发及完井压裂技术;

, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1173173760065684355, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, xref=null, ext=[AuthorCompanyExt(id=1173173760074072964, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, companyId=1173173760065684355, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1. Schlumberger Changhe Oilfield Engineering Co. Ltd., Xi’an 710021, China), AuthorCompanyExt(id=1173173760082461573, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, companyId=1173173760065684355, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1. 斯伦贝谢长和油田工程有限公司, 西安 710021)])]), Author(id=1173173760766133143, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, orderNo=2, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1173173760854213530, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, authorId=1173173760766133143, language=EN, stringName=Xianfeng BAI, firstName=Xianfeng, middleName=null, lastName=BAI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, 2, address=1. Schlumberger Changhe Oilfield Engineering Co. Ltd., Xi’an 710021, China
2. Schlumberger Technoloty Services(Chengdu) Co. Ltd., Chengdu 610012, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1173173760921322395, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, authorId=1173173760766133143, language=CN, stringName=柏险峰, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, 2, address=1. 斯伦贝谢长和油田工程有限公司, 西安 710021
2. 斯伦贝谢科技服务(成都)有限公司, 成都 610012, bio={"content":"

柏险峰(1972—),陕西西安人,高级工程师,研究方向为油气田勘探开发及完井压裂技术;

"}, bioImg=null, bioContent=

柏险峰(1972—),陕西西安人,高级工程师,研究方向为油气田勘探开发及完井压裂技术;

, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1173173760065684355, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, xref=null, ext=[AuthorCompanyExt(id=1173173760074072964, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, companyId=1173173760065684355, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1. Schlumberger Changhe Oilfield Engineering Co. Ltd., Xi’an 710021, China), AuthorCompanyExt(id=1173173760082461573, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, companyId=1173173760065684355, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1. 斯伦贝谢长和油田工程有限公司, 西安 710021)]), AuthorCompany(id=1173173760153764742, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, xref=null, ext=[AuthorCompanyExt(id=1173173760183124871, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, companyId=1173173760153764742, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2. Schlumberger Technoloty Services(Chengdu) Co. Ltd., Chengdu 610012, China), AuthorCompanyExt(id=1173173760208290696, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, companyId=1173173760153764742, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2. 斯伦贝谢科技服务(成都)有限公司, 成都 610012)])]), Author(id=1173173761001014173, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, orderNo=3, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1173173761072317343, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, authorId=1173173761001014173, language=EN, stringName=Junfeng WANG, firstName=Junfeng, middleName=null, lastName=WANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, address=1. Schlumberger Changhe Oilfield Engineering Co. Ltd., Xi’an 710021, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1173173761135231904, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, authorId=1173173761001014173, language=CN, stringName=王军峰, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, address=1. 斯伦贝谢长和油田工程有限公司, 西安 710021, bio={"content":"

王军峰(1987—),男,陕西榆林人,硕士,高级工程师,研究方向为油气田勘探开发及完井压裂技术;

"}, bioImg=null, bioContent=

王军峰(1987—),男,陕西榆林人,硕士,高级工程师,研究方向为油气田勘探开发及完井压裂技术;

, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1173173760065684355, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, xref=null, ext=[AuthorCompanyExt(id=1173173760074072964, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, companyId=1173173760065684355, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1. Schlumberger Changhe Oilfield Engineering Co. Ltd., Xi’an 710021, China), AuthorCompanyExt(id=1173173760082461573, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, companyId=1173173760065684355, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1. 斯伦贝谢长和油田工程有限公司, 西安 710021)])]), Author(id=1173173761189757858, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, orderNo=4, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1173173761244283812, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, authorId=1173173761189757858, language=EN, stringName=Yongbo CAO, firstName=Yongbo, middleName=null, lastName=CAO, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=3, address=3. Shaanxi Yanchang Petroleum(Group) Co. Ltd., Yan’an 716003, Shaanxi, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1173173761298809765, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, authorId=1173173761189757858, language=CN, stringName=曹永波, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=3, address=3. 陕西延长石油(集团)有限责任公司, 陕西 延安 716003, bio={"content":"

曹永波(1984—),男,陕西榆林人,高级工程师,研究方向为油气田勘探开发及完井压裂技术;

"}, bioImg=null, bioContent=

曹永波(1984—),男,陕西榆林人,高级工程师,研究方向为油气田勘探开发及完井压裂技术;

, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1173173760271205257, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, xref=null, ext=[AuthorCompanyExt(id=1173173760275399562, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, companyId=1173173760271205257, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=3. Shaanxi Yanchang Petroleum(Group) Co. Ltd., Yan’an 716003, Shaanxi, China), AuthorCompanyExt(id=1173173760283788171, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, companyId=1173173760271205257, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=3. 陕西延长石油(集团)有限责任公司, 陕西 延安 716003)])]), Author(id=1173173761357530023, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, orderNo=5, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1173173761424638889, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, authorId=1173173761357530023, language=EN, stringName=Zhenguo GAO, firstName=Zhenguo, middleName=null, lastName=GAO, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, address=1. Schlumberger Changhe Oilfield Engineering Co. Ltd., Xi’an 710021, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1173173761479164842, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, authorId=1173173761357530023, language=CN, stringName=高振国, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, address=1. 斯伦贝谢长和油田工程有限公司, 西安 710021, bio={"content":"

高振国(1999—),男,甘肃平凉人,工程师,研究方向为油气田勘探开发及完井压裂技术。

"}, bioImg=null, bioContent=

高振国(1999—),男,甘肃平凉人,工程师,研究方向为油气田勘探开发及完井压裂技术。

, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1173173760065684355, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, xref=null, ext=[AuthorCompanyExt(id=1173173760074072964, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, companyId=1173173760065684355, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1. Schlumberger Changhe Oilfield Engineering Co. Ltd., Xi’an 710021, China), AuthorCompanyExt(id=1173173760082461573, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, companyId=1173173760065684355, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1. 斯伦贝谢长和油田工程有限公司, 西安 710021)])])], keywords=[Keyword(id=1173173761600799659, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=EN, orderNo=1, keyword=tight sandstone), Keyword(id=1173173761651131308, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=EN, orderNo=2, keyword=water blocking), Keyword(id=1173173761709851565, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=EN, orderNo=3, keyword=production characteristics), Keyword(id=1173173761776960430, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=EN, orderNo=4, keyword=prevention and treatment of water blocking), Keyword(id=1173173761835680687, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=CN, orderNo=1, keyword=致密砂岩), Keyword(id=1173173761890206640, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=CN, orderNo=2, keyword=水锁), Keyword(id=1173173761957315505, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=CN, orderNo=3, keyword=生产特征), Keyword(id=1173173762024424370, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=CN, orderNo=4, keyword=水锁防治)], refs=[Reference(id=1173173764146742219, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, doi=null, pmid=null, pmcid=null, year=2015, volume=42, issue=1, pageStart=13, pageEnd=25, url=null, language=null, rfNumber=[1], rfOrder=0, authorNames=邹才能, 翟光明, 张光亚, journalName=石油勘探与开发, refType=null, unstructuredReference=邹才能, 翟光明, 张光亚, 等. 全球常规-非常规油气形成分布、资源潜力及趋势预测[J]. 石油勘探与开发, 2015, 42(1): 13-25., articleTitle=全球常规-非常规油气形成分布、资源潜力及趋势预测, refAbstract=null), Reference(id=1173173764213851084, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, doi=null, pmid=null, pmcid=null, year=2012, volume=88, issue=null, pageStart=82, pageEnd=91, url=null, language=null, rfNumber=[2], rfOrder=1, authorNames=ZOU C, ZHU R, LIU K, journalName=Journal of Petroleum Science and Engineering, refType=null, unstructuredReference=ZOU C, ZHU R, LIU K, et al. Tight gas sandstone reservoirs in China: characteristics and recognition criteria[J]. Journal of Petroleum Science and Engineering, 2012, 88: 82-91., articleTitle=Tight gas sandstone reservoirs in China: characteristics and recognition criteria, refAbstract=null), Reference(id=1173173764301931469, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, doi=null, pmid=null, pmcid=null, year=2016, volume=43, issue=6, pageStart=850, pageEnd=862, url=null, language=null, rfNumber=[3], rfOrder=2, authorNames=王红军, 马锋, 童晓光, journalName=石油勘探与开发, refType=null, unstructuredReference=王红军, 马锋, 童晓光, 等. 全球非常规油气资源评价[J]. 石油勘探与开发, 2016, 43(6): 850-862., articleTitle=全球非常规油气资源评价, refAbstract=null), Reference(id=1173173764352263118, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, doi=null, pmid=null, pmcid=null, year=2018, volume=45, issue=4, pageStart=727, pageEnd=736, url=null, language=null, rfNumber=[4], rfOrder=3, authorNames=童晓光, 张光亚, 王兆明, journalName=石油勘探与开发, refType=null, unstructuredReference=童晓光, 张光亚, 王兆明, 等. 全球油气资源潜力ff与分布[J]. 石油勘探与开发, 2018, 45(4): 727-736., articleTitle=全球油气资源潜力ff与分布, refAbstract=null), Reference(id=1173173764419371983, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, doi=null, pmid=null, pmcid=null, year=2012, volume=26, issue=5, pageStart=62, pageEnd=66, url=null, language=null, rfNumber=[5], rfOrder=4, authorNames=庞长英, 连军利, 吴一凡, journalName=石油地质与工程, refType=null, unstructuredReference=庞长英, 连军利, 吴一凡, 等. 美国页岩油气开发技术及对我国的启示[J]. 石油地质与工程, 2012, 26(5): 62-66., articleTitle=美国页岩油气开发技术及对我国的启示, refAbstract=null), Reference(id=1173173764469703632, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, doi=null, pmid=null, pmcid=null, year=2014, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=[6], rfOrder=5, authorNames=房凯, journalName=美国“页岩气革命”对亚太能源的影响研究, refType=null, unstructuredReference=房凯. 美国“页岩气革命”对亚太能源的影响研究[D]. 杭州: 浙江工业大学, 2014., articleTitle=null, refAbstract=null), Reference(id=1173173764528423889, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, doi=null, pmid=null, pmcid=null, year=1994, volume=null, issue=3, pageStart=1, pageEnd=4, url=null, language=null, rfNumber=[7], rfOrder=6, authorNames=张士亚, journalName=天然气工业, refType=null, unstructuredReference=张士亚. 鄂尔多斯盆地天然气气源及勘探方向[J]. 天然气工业, 1994(3): 1-4., articleTitle=鄂尔多斯盆地天然气气源及勘探方向, refAbstract=null), Reference(id=1173173764587144146, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, doi=null, pmid=null, pmcid=null, year=2019, volume=46, issue=3, pageStart=602, pageEnd=612, url=null, language=null, rfNumber=[8], rfOrder=7, authorNames=冀光, 贾爱林, 孟德伟, journalName=石油勘探与开发, refType=null, unstructuredReference=冀光, 贾爱林, 孟德伟, 等. 大型致密砂岩气田有效开发与提高采收率技术对策——以鄂尔多斯盆地苏里格气田为例[J]. 石油勘探与开发, 2019, 46(3): 602-612., articleTitle=大型致密砂岩气田有效开发与提高采收率技术对策——以鄂尔多斯盆地苏里格气田为例, refAbstract=null), Reference(id=1173173764641670099, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, doi=null, pmid=null, pmcid=null, year=2023, volume=43, issue=6, pageStart=66, pageEnd=75, url=null, language=null, rfNumber=[9], rfOrder=8, authorNames=吴正, 江乾锋, 周游, journalName=天然气工业, refType=null, unstructuredReference=吴正, 江乾锋, 周游, 等. 鄂尔多斯盆地苏里格致密砂岩气田提高采收率关键技术及攻关方向[J]. 天然气工业, 2023, 43(6): 66-75., articleTitle=鄂尔多斯盆地苏里格致密砂岩气田提高采收率关键技术及攻关方向, refAbstract=null), Reference(id=1173173764700390356, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, doi=null, pmid=null, pmcid=null, year=2024, volume=24, issue=4, pageStart=1378, pageEnd=1391, url=null, language=null, rfNumber=[10], rfOrder=9, authorNames=刘阳, 刘彦成, 林利明, journalName=科学技术与工程, refType=null, unstructuredReference=刘阳, 刘彦成, 林利明, 等. 鄂尔多斯盆地临兴-神府地区上古生界致密砂岩成岩作用与成储关系研究[J]. 科学技术与工程, 2024, 24(4): 1378-1391., articleTitle=鄂尔多斯盆地临兴-神府地区上古生界致密砂岩成岩作用与成储关系研究, refAbstract=null), Reference(id=1173173764759110613, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, doi=null, pmid=null, pmcid=null, year=2016, volume=43, issue=4, pageStart=663, pageEnd=671, url=null, language=null, rfNumber=[11], rfOrder=10, authorNames=M D W, JIA A L, GUANG J I, journalName=Petroleum Exploration and Development, refType=null, unstructuredReference=M D W, JIA A L, GUANG J I, et al. Water and gas distribution and its controlling factors of large scale tight sand gas fields: a case study of western Sulige gas field, Ordos Basin, NW China[J]. Petroleum Exploration and Development, 2016, 43(4): 663-671., articleTitle=Water and gas distribution and its controlling factors of large scale tight sand gas fields: a case study of western Sulige gas field, Ordos Basin, NW China, refAbstract=null), Reference(id=1173173764838802390, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, doi=null, pmid=null, pmcid=null, year=2024, volume=24, issue=23, pageStart=9710, pageEnd=9717, url=null, language=null, rfNumber=[12], rfOrder=11, authorNames=杜晓濛, 郭艳琴, 颉嘉琳, journalName=科学技术与工程, refType=null, unstructuredReference=杜晓濛, 郭艳琴, 颉嘉琳, 等. 致密砂岩储层敏感性及影响因素分析: 以鄂尔多斯盆地王家湾东南区长6油层组为例[J]. 科学技术与工程, 2024, 24(23): 9710-9717., articleTitle=致密砂岩储层敏感性及影响因素分析: 以鄂尔多斯盆地王家湾东南区长6油层组为例, refAbstract=null), Reference(id=1173173764897522647, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, doi=null, pmid=null, pmcid=null, year=2011, volume=null, issue=null, pageStart=1, pageEnd=7, url=null, language=null, rfNumber=[13], rfOrder=12, authorNames=BAHRAMI H, REZAEE M R, NAZHAT D, journalName=SPE Production and Operations Symposium, refType=null, unstructuredReference=BAHRAMI H, REZAEE M R, NAZHAT D, et al. Effect of water blocking damage on flow efficiency and productivity in tight gas reservoirs[C]// SPE Production and Operations Symposium. Oklahoma, USA: SPE, 2011: 1-7., articleTitle=Effect of water blocking damage on flow efficiency and productivity in tight gas reservoirs, refAbstract=null), Reference(id=1173173764943659992, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, doi=null, pmid=null, pmcid=null, year=1979, volume=10, issue=null, pageStart=1515, pageEnd=1524, url=null, language=null, rfNumber=[14], rfOrder=13, authorNames=HOLDITCH S A, journalName=Journal of Petroleum Technology, refType=null, unstructuredReference=HOLDITCH S A. Factors affecting water blocking and gas flow from hydraulically fractured gas wells[J]. Journal of Petroleum Technology, 1979, 10: 1515-1524., articleTitle=Factors affecting water blocking and gas flow from hydraulically fractured gas wells, refAbstract=null), Reference(id=1173173765006574553, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, doi=null, pmid=null, pmcid=null, year=2017, volume=152, issue=null, pageStart=495, pageEnd=504, url=null, language=null, rfNumber=[15], rfOrder=14, authorNames=WANG H, REZAEE R, SAEEDI A, journalName=Journal of Petroleum Science and Engineering, refType=null, unstructuredReference=WANG H, REZAEE R, SAEEDI A, et al. Numerical modelling of microwave heating treatment for tight gas sand reservoirs[J]. Journal of Petroleum Science and Engineering, 2017, 152: 495-504., articleTitle=Numerical modelling of microwave heating treatment for tight gas sand reservoirs, refAbstract=null), Reference(id=1173173765077877722, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, doi=null, pmid=null, pmcid=null, year=2021, volume=18, issue=null, pageStart=219, pageEnd=233, url=null, language=null, rfNumber=[16], rfOrder=15, authorNames=WANG J, ZHOU F J, journalName=Petroleum Science, refType=null, unstructuredReference=WANG J, ZHOU F J. Cause analysis and solutions of water blocking damage in cracked/non-cracked tight sandstone gas reservoirs[J]. Petroleum Science, 2021, 18: 219-233., articleTitle=Cause analysis and solutions of water blocking damage in cracked/non-cracked tight sandstone gas reservoirs, refAbstract=null), Reference(id=1173173765144986587, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, doi=null, pmid=null, pmcid=null, year=2023, volume=23, issue=12, pageStart=5041, pageEnd=5047, url=null, language=null, rfNumber=[17], rfOrder=16, authorNames=李进步, 田冷, 刘志军, journalName=科学技术与工程, refType=null, unstructuredReference=李进步, 田冷, 刘志军, 等. 致密砂岩产水气井气举排液模型研究[J]. 科学技术与工程, 2023, 23(12): 5041-5047., articleTitle=致密砂岩产水气井气举排液模型研究, refAbstract=null), Reference(id=1173173765195318236, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, doi=null, pmid=null, pmcid=null, year=2012, volume=88, issue=null, pageStart=100, pageEnd=106, url=null, language=null, rfNumber=[18], rfOrder=17, authorNames=BAHRAMI H, REZAEE R, CLENNELL B, journalName=Journal of Petroleum Science and Engineering, refType=null, unstructuredReference=BAHRAMI H, REZAEE R, CLENNELL B. Water blocking damage in hydraulically fractured tight sand gas reservoirs: an example from Perth Basin, Western Australia[J]. Journal of Petroleum Science and Engineering, 2012, 88: 100-106., articleTitle=Water blocking damage in hydraulically fractured tight sand gas reservoirs: an example from Perth Basin, Western Australia, refAbstract=null), Reference(id=1173173765245649885, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, doi=null, pmid=null, pmcid=null, year=2022, volume=15, issue=11, pageStart=4015, pageEnd=null, url=null, language=null, rfNumber=[19], rfOrder=18, authorNames=LI Q, FAN Z, LIU Q, journalName=Materials, refType=null, unstructuredReference=LI Q, FAN Z, LIU Q, et al. Synthesis of a superhydrophobic fluorinated nano-emulsion and its modification on the wettability of tight sandstone[J]. Materials, 2022, 15(11): 4015., articleTitle=Synthesis of a superhydrophobic fluorinated nano-emulsion and its modification on the wettability of tight sandstone, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1173173760065684355, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, xref=null, ext=[AuthorCompanyExt(id=1173173760074072964, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, companyId=1173173760065684355, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1. Schlumberger Changhe Oilfield Engineering Co. Ltd., Xi’an 710021, China), AuthorCompanyExt(id=1173173760082461573, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, companyId=1173173760065684355, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1. 斯伦贝谢长和油田工程有限公司, 西安 710021)]), AuthorCompany(id=1173173760153764742, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, xref=null, ext=[AuthorCompanyExt(id=1173173760183124871, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, companyId=1173173760153764742, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2. Schlumberger Technoloty Services(Chengdu) Co. Ltd., Chengdu 610012, China), AuthorCompanyExt(id=1173173760208290696, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, companyId=1173173760153764742, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2. 斯伦贝谢科技服务(成都)有限公司, 成都 610012)]), AuthorCompany(id=1173173760271205257, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, xref=null, ext=[AuthorCompanyExt(id=1173173760275399562, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, companyId=1173173760271205257, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=3. Shaanxi Yanchang Petroleum(Group) Co. Ltd., Yan’an 716003, Shaanxi, China), AuthorCompanyExt(id=1173173760283788171, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, companyId=1173173760271205257, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=3. 陕西延长石油(集团)有限责任公司, 陕西 延安 716003)])], figs=[ArticleFig(id=1173173762188002227, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=EN, label=null, caption=null, figureFileSmall=wwRrbp8Wl35Ynlbgx3YH6w==, figureFileBig=EYhYA/CZOBIM9FAVenYv6g==, tableContent=null), ArticleFig(id=1173173762238333876, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=CN, label=图1, caption=致密砂岩气藏水力压裂过程中水锁伤害对产气量的影响, figureFileSmall=wwRrbp8Wl35Ynlbgx3YH6w==, figureFileBig=EYhYA/CZOBIM9FAVenYv6g==, tableContent=null), ArticleFig(id=1173173762301248437, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=EN, label=null, caption=null, figureFileSmall=84EWQE2FNGxghM81WPR2eQ==, figureFileBig=xHHTc04GGey2xuL3y00sAg==, tableContent=null), ArticleFig(id=1173173762368357302, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=CN, label=图2, caption=鄂尔多斯盆地Y368井关井导致水锁伤害的油套压力变化曲线, figureFileSmall=84EWQE2FNGxghM81WPR2eQ==, figureFileBig=xHHTc04GGey2xuL3y00sAg==, tableContent=null), ArticleFig(id=1173173762464826295, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=EN, label=null, caption=null, figureFileSmall=3nIwp2mEnkbyTIHBiVZkeA==, figureFileBig=mL0gC9txCOHUa4WdFnHJ3A==, tableContent=null), ArticleFig(id=1173173762540323768, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=CN, label=图3, caption=鄂尔多斯盆地Y368井关井导致水锁伤害的生产曲线, figureFileSmall=3nIwp2mEnkbyTIHBiVZkeA==, figureFileBig=mL0gC9txCOHUa4WdFnHJ3A==, tableContent=null), ArticleFig(id=1173173762594849721, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=EN, label=null, caption=null, figureFileSmall=L1mv/tjI9hIEOd+MfhPI+A==, figureFileBig=iRcegnNMvb9FPMpaMrX+qA==, tableContent=null), ArticleFig(id=1173173762649375674, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=CN, label=图4, caption=延X0井实施注气+气举复产工艺前后油套压力变化曲线, figureFileSmall=L1mv/tjI9hIEOd+MfhPI+A==, figureFileBig=iRcegnNMvb9FPMpaMrX+qA==, tableContent=null), ArticleFig(id=1173173762720678843, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=EN, label=null, caption=null, figureFileSmall=96mIRzzGVpuuBagDDt+Pkg==, figureFileBig=G/7mk2/ZXvPsFk0MR24Puw==, tableContent=null), ArticleFig(id=1173173762808759228, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=CN, label=图5, caption=延X0井实施注气+气举复产工艺前后生产曲线, figureFileSmall=96mIRzzGVpuuBagDDt+Pkg==, figureFileBig=G/7mk2/ZXvPsFk0MR24Puw==, tableContent=null), ArticleFig(id=1173173762871673789, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=EN, label=null, caption=null, figureFileSmall=1ioVUS39gYysh1nWY1ApBA==, figureFileBig=1ttHCwoeeGENrC/qjCLcPg==, tableContent=null), ArticleFig(id=1173173762930394046, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=CN, label=图6, caption=岩石经润湿改性后的表面接触角, figureFileSmall=1ioVUS39gYysh1nWY1ApBA==, figureFileBig=1ttHCwoeeGENrC/qjCLcPg==, tableContent=null), ArticleFig(id=1173173762989114303, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=EN, label=null, caption=null, figureFileSmall=U6xSClWC6hPmyuOdAWOEIg==, figureFileBig=X6B6Bdyr3ni6S3GfK3KTSQ==, tableContent=null), ArticleFig(id=1173173763144303552, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=CN, label=图7, caption=延XX井解水锁前后关井油压恢复曲线, figureFileSmall=U6xSClWC6hPmyuOdAWOEIg==, figureFileBig=X6B6Bdyr3ni6S3GfK3KTSQ==, tableContent=null), ArticleFig(id=1173173763232383937, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=EN, label=null, caption=null, figureFileSmall=LMET4wcP3cPzQsj6rj9KuA==, figureFileBig=kBFRFwTlOdpWJWYfgfvvvQ==, tableContent=null), ArticleFig(id=1173173763316270018, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=CN, label=图8, caption=延XX井解水锁前后生产曲线, figureFileSmall=LMET4wcP3cPzQsj6rj9KuA==, figureFileBig=kBFRFwTlOdpWJWYfgfvvvQ==, tableContent=null), ArticleFig(id=1173173763370795971, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
层位 平均渗透率/
mD
水锁指数WBI/% 水锁伤害程度
范围 平均
盒8 0.37 78.6~81.1 79.9
山1 0.31 80.5~83.7 82.1
山2 0.52 63.8~80.5 72.2
本溪 1.06 49.7~77.1 63.4 中等偏强-强
), ArticleFig(id=1173173763509208004, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=CN, label=表1, caption=

盒8段-本溪组水锁伤害指数

, figureFileSmall=null, figureFileBig=null, tableContent=
层位 平均渗透率/
mD
水锁指数WBI/% 水锁伤害程度
范围 平均
盒8 0.37 78.6~81.1 79.9
山1 0.31 80.5~83.7 82.1
山2 0.52 63.8~80.5 72.2
本溪 1.06 49.7~77.1 63.4 中等偏强-强
), ArticleFig(id=1173173763576316869, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
井号 临界携液流速与流量 目前产量/
(104 m3·d-1)
是否携液
李闽模型 王毅忠模型
vcr/(m·s-1) Qcr/(104 m3·d-1) vcr/(m·s-1) Qcr/(104 m3·d-1)
XX-61 0.724 1.139 0.651 1.025 1.164
XX-84 1.378 0.615 1.24 0.553 0.419 不能
XX-91 1.219 0.693 1.098 0.623 0.739
XX-83 0.610 1.330 0.549 1.197 0.35 不能
XX-60 1.331 0.636 1.198 0.572 0.673
XX-58 0.669 1.224 0.602 1.102 0.132 不能
XX-80 0.595 1.36 0.536 1.224 1.517
XX-79 0.537 1.487 0.484 1.338 0.459 不能
XX-86 0.684 1.200 0.615 1.080 0.559 不能
XX-82 0.65 1.257 0.585 1.131 0.517 不能
XX-75 1.296 0.653 1.166 0.587 0.467 不能
XX-75 1.473 0.576 1.326 0.518 0.821
XX-76 0.886 0.942 0.797 0.848 0.868
), ArticleFig(id=1173173763664397254, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=CN, label=表2, caption=

产水井临界携液流量与实际携液情况对比评价结果

, figureFileSmall=null, figureFileBig=null, tableContent=
井号 临界携液流速与流量 目前产量/
(104 m3·d-1)
是否携液
李闽模型 王毅忠模型
vcr/(m·s-1) Qcr/(104 m3·d-1) vcr/(m·s-1) Qcr/(104 m3·d-1)
XX-61 0.724 1.139 0.651 1.025 1.164
XX-84 1.378 0.615 1.24 0.553 0.419 不能
XX-91 1.219 0.693 1.098 0.623 0.739
XX-83 0.610 1.330 0.549 1.197 0.35 不能
XX-60 1.331 0.636 1.198 0.572 0.673
XX-58 0.669 1.224 0.602 1.102 0.132 不能
XX-80 0.595 1.36 0.536 1.224 1.517
XX-79 0.537 1.487 0.484 1.338 0.459 不能
XX-86 0.684 1.200 0.615 1.080 0.559 不能
XX-82 0.65 1.257 0.585 1.131 0.517 不能
XX-75 1.296 0.653 1.166 0.587 0.467 不能
XX-75 1.473 0.576 1.326 0.518 0.821
XX-76 0.886 0.942 0.797 0.848 0.868
), ArticleFig(id=1173173763748283335, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
油管尺寸/
mm
井口压力/MPa
15 12 9 6 3 2
25 0.39 0.35 0.30 0.24 0.16 0.13
40.3 1.01 0.90 0.77 0.62 0.43 0.35
50.8 1.58 1.41 1.20 0.96 0.67 0.54
62 2.40 2.14 1.83 1.46 1.01 0.82
), ArticleFig(id=1173173763823780808, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=CN, label=表3, caption=

不同油管尺寸及井口压力下的临界携液流量

, figureFileSmall=null, figureFileBig=null, tableContent=
油管尺寸/
mm
井口压力/MPa
15 12 9 6 3 2
25 0.39 0.35 0.30 0.24 0.16 0.13
40.3 1.01 0.90 0.77 0.62 0.43 0.35
50.8 1.58 1.41 1.20 0.96 0.67 0.54
62 2.40 2.14 1.83 1.46 1.01 0.82
), ArticleFig(id=1173173763899278281, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
活性剂
代号
不同活性剂浓度(mg/L)下的表面张力/(mN·m-1)
50 100 200 500 1 000 2 000 3 000 5 000
LAB 29.45 29.34 28.69 27.68 27.32 26.88 26.56 26.34
LAPO 32.03 31.89 31.56 31.27 30.66 28.99 27.60 27.42
LAO 67.82 65.33 53.57 52.73 44.38 35.14 33.00 31.60
), ArticleFig(id=1173173763966387146, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1149670641139364539, language=CN, label=表4, caption=

两性离子碳氢表面活性剂在不同浓度下的表面张力

, figureFileSmall=null, figureFileBig=null, tableContent=
活性剂
代号
不同活性剂浓度(mg/L)下的表面张力/(mN·m-1)
50 100 200 500 1 000 2 000 3 000 5 000
LAB 29.45 29.34 28.69 27.68 27.32 26.88 26.56 26.34
LAPO 32.03 31.89 31.56 31.27 30.66 28.99 27.60 27.42
LAO 67.82 65.33 53.57 52.73 44.38 35.14 33.00 31.60
)], attaches=null, journal=Journal(id=1146119232468656133, delFlag=0, nameCn=科技和产业, nameEn=Science Technology and Industry, nameHistory1=null, nameHistory2=null, issn=1671-1807, eissn=, cn=11-4671/T, coden=null, periodic=3, language=CN, oaType=是, ccby=null, superviseOffice=null, ownerOffice=null, pubOffice=null, editorOffice=null, officeType=null, aims=null, clcCode=null, officeProv=null, officeCity=null, officeAddr=null, officeZip=null, officeEmail=null, officePhone=null, editDirector=null, officeDirector=null, officeDirectorPhone=null, officeStaffNum=null, officeEmpNum=null, coverPicUrl=65omA9nasEwsJtKyya4q2A==, journalPrice=null, startedYear=null, abbrevIsoEn=Sci Technol Ind, journalRemark=null, publicationField=null, createdTime=null, updatedTime=1755589264235, createdBy=null, updatedBy=15831073675, firstLetterCn=S, firstLetterEn=S, subjectCode=Engineering, subjectName=工程, subjectCodeEn=Engineering, subjectNameEn=null, picCn=65omA9nasEwsJtKyya4q2A==, picEn=/wwFtLNQXxKpecNSjAf1AQ==, jcr=null, cjcr=null, exts=[JournalExt(id=1164589040427811221, language=CN, name=科技和产业, nameHistory1=null, nameHistory2=null, managedBy=, sponsoredBy=, publishedBy=, editorOffice=, officeProv=null, officeCity=null, officeAddr=, officeZip=, editDirector=null, officeDirector=null, officePhone=null, coverPicUrl=null, journalRemark=, submitArticleUrl=null, websiteUrl=http://www.kjhcy.org/kjycy/home, createdTime=1755589264256, updatedTime=1755589264256, createdBy=15831073675, updatedBy=15831073675, submissionGuidelinesUrl=http://www.kjhcy.org/kjycy/site/menu/20110121105642001, submissionAuthorUrl=http://www.kjhcy.org/kjycy/author/login, submissionEditorUrl=http://www.kjhcy.org/kjycy/editor/login, submissionReviewUrl=http://www.kjhcy.org/kjycy/user/login, submissionCeEditorUrl=, submissionAeEditorUrl=, option={"copyright":""}), JournalExt(id=1164589040473948566, language=EN, name=Science Technology and Industry, nameHistory1=null, nameHistory2=null, managedBy=, sponsoredBy=, publishedBy=, editorOffice=, officeProv=null, officeCity=null, officeAddr=, officeZip=, editDirector=null, officeDirector=null, officePhone=null, coverPicUrl=null, journalRemark=, submitArticleUrl=null, websiteUrl=http://www.kjhcy.org/kjycy/home, createdTime=1755589264267, updatedTime=1755589264267, createdBy=15831073675, updatedBy=15831073675, submissionGuidelinesUrl=, submissionAuthorUrl=http://www.kjhcy.org/kjycy/author/login, submissionEditorUrl=http://www.kjhcy.org/kjycy/editor/login, submissionReviewUrl=http://www.kjhcy.org/kjycy/user/login, submissionCeEditorUrl=, submissionAeEditorUrl=, option={"copyright":""})], databaseList=null, tenantJournalId=1146123222451335185, websiteList=[Website(id=1148243202395595182, webName=null, webTitle=null, webDomain=null, webCopyrigh=null, webIpcNo=null, seoTitle=null, seoKeywords=null, seoDescription=null, tenantJournalId=null, journalId=1146123222451335185, journalNameCn=null, journalNameEn=null, grayFlag=null, tenantId=1146029695717560320, platformId=null, journalGroupId=null, journalGroupNameCn=null, journalGroupNameEn=null, type=1, domain=https://castjournals.cast.org.cn/joweb/kjhcy/CN, language=CN, createTime=1751692112778, createBy=18614031015, updateTime=1753522130587, updateBy=18614031015, name=科技和产业-中文站点, tplId=1146099689490845704, title=科技和产业, delFlag=0, indexPage=/home, props=[WebsiteProps(id=1155919343281103033, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1148243202395595182, code=articleTextType, value=kx, createTime=1753522247381, updateTime=1753522247381, creator=18614031015, updator=18614031015), WebsiteProps(id=1155919343260131510, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1148243202395595182, code=banner, value=null, createTime=1753522247376, updateTime=1753522247376, creator=18614031015, updator=18614031015), WebsiteProps(id=1155919343251742901, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1148243202395595182, code=logo, value=https://castjournals.cast.org.cn/joweb/kjdb/CN/file/pic?fileId=NeDGaoVSnAwTO5bjjrifjg==, createTime=1753522247374, updateTime=1753522247374, creator=18614031015, updator=18614031015), WebsiteProps(id=1155919343272714424, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1148243202395595182, code=picServerUrl, value=https://castjournals.cast.org.cn/joweb/kjdb/CN/file/pic, createTime=1753522247379, updateTime=1753522247379, creator=18614031015, updator=18614031015), WebsiteProps(id=1155919343268520119, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1148243202395595182, code=staticResourcePath, value=https://castjournals.cast.org.cn/joweb/cast_kjdb_cn_619/, createTime=1753522247378, updateTime=1753522247378, creator=18614031015, updator=18614031015)]), Website(id=1155919131955314719, webName=null, webTitle=null, webDomain=null, webCopyrigh=null, webIpcNo=null, seoTitle=null, seoKeywords=null, seoDescription=null, tenantJournalId=null, journalId=1146123222451335185, journalNameCn=null, journalNameEn=null, grayFlag=null, tenantId=1146029695717560320, platformId=null, journalGroupId=null, journalGroupNameCn=null, journalGroupNameEn=null, type=1, domain=https://castjournals.cast.org.cn/joweb/kjhcy/EN, language=EN, createTime=1753522197002, createBy=18614031015, updateTime=1753522207756, updateBy=18614031015, name=科技和产业-英文站点, tplId=1146101810881728533, title=Science Technology and Industry, delFlag=0, indexPage=/home, props=[WebsiteProps(id=1155919498877194448, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1155919131955314719, code=articleTextType, value=kx, createTime=1753522284478, updateTime=1753522284478, creator=18614031015, updator=18614031015), WebsiteProps(id=1155919498860417229, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1155919131955314719, code=banner, value=null, createTime=1753522284474, updateTime=1753522284474, creator=18614031015, updator=18614031015), WebsiteProps(id=1155919498852028620, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1155919131955314719, code=logo, value=https://castjournals.cast.org.cn/joweb/kjdb/CN/file/pic?fileId=NeDGaoVSnAwTO5bjjrifjg==, createTime=1753522284472, updateTime=1753522284472, creator=18614031015, updator=18614031015), WebsiteProps(id=1155919498873000143, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1155919131955314719, code=picServerUrl, value=https://castjournals.cast.org.cn/joweb/kjdb/CN/file/pic, createTime=1753522284477, updateTime=1753522284477, creator=18614031015, updator=18614031015), WebsiteProps(id=1155919498864611534, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1155919131955314719, code=staticResourcePath, value=https://castjournals.cast.org.cn/joweb/cast_kjdb_cn_619/, createTime=1753522284476, updateTime=1753522284476, creator=18614031015, updator=18614031015)])], journalTitle=科技和产业, weixinUrl=null, journalUrl=null, iacademicId=null, status=0, seqNo=null, journalTitleEn=Science Technology and Industry, journalPhotoCn=65omA9nasEwsJtKyya4q2A==, journalPhotoEn=/wwFtLNQXxKpecNSjAf1AQ==, journalFirstLetter=S, journalRecommend=null, journalNew=null, journalCollection=null, jcrJf=null, cjcrJf=null, jcrJfStr=null, cjcrJfStr=null, submissionFirstDecision=null, sciSubjectClassification=null, casSubjectClassification=null, citeScore=null, totalCitationFrequency=null, icpCode=null, psCode=null, advertisingLicenseCode=null, copyrightInformation=null, country=null, option=, provinceCode=null, provinceName=null, collectFlag=false), detailUrlCn=https://castjournals.cast.org.cn/joweb/kjhcy/CN/Y2025/V25/I10/111, detailUrlEn=https://castjournals.cast.org.cn/joweb/kjhcy/EN/Y2025/V25/I10/111, pdfUrlCn=https://castjournals.cast.org.cn/joweb/kjhcy/CN/PDF/Y2025/V25/I10/111, pdfUrlEn=https://castjournals.cast.org.cn/joweb/kjhcy/EN/PDF/Y2025/V25/I10/111, aliStartDate=null, aliEndDate=null, collectionFlag=false, citedCount=null, citedUrl=null, reference=null)
收藏切换
鄂尔多斯南缘致密砂岩气藏储层水锁防治技术应用与实践
收藏切换
PDF下载
卫颖菲 1 , 李明 1 , 柏险峰 1, 2 , 王军峰 1 , 曹永波 3 , 高振国 1
科技和产业 | 区域实践 2025,25(10): 111-117
收起
收藏切换
科技和产业 | 区域实践 2025, 25(10): 111-117
鄂尔多斯南缘致密砂岩气藏储层水锁防治技术应用与实践
全屏
卫颖菲1, 李明1, 柏险峰1, 2, 王军峰1, 曹永波3, 高振国1
作者信息
  • 1. 斯伦贝谢长和油田工程有限公司, 西安 710021
  • 2. 斯伦贝谢科技服务(成都)有限公司, 成都 610012
  • 3. 陕西延长石油(集团)有限责任公司, 陕西 延安 716003
  • 卫颖菲(1988—),女,陕西韩城人,硕士,工程师,研究方向为油气田勘探开发及完井压裂技术;

    李明(1980—),男,黑龙江安达人,硕士,高级工程师,研究方向为油气田勘探开发及完井压裂技术;

    柏险峰(1972—),陕西西安人,高级工程师,研究方向为油气田勘探开发及完井压裂技术;

    王军峰(1987—),男,陕西榆林人,硕士,高级工程师,研究方向为油气田勘探开发及完井压裂技术;

    曹永波(1984—),男,陕西榆林人,高级工程师,研究方向为油气田勘探开发及完井压裂技术;

    高振国(1999—),男,甘肃平凉人,工程师,研究方向为油气田勘探开发及完井压裂技术。

Application and Practice of Reservoir Water Blocking Prevention Technologies in Tight Sandstone Gas Reservoirs in the Southern Margin of Ordos
Yingfei WEI1, Ming LI1, Xianfeng BAI1, 2, Junfeng WANG1, Yongbo CAO3, Zhenguo GAO1
Affiliations
  • 1. Schlumberger Changhe Oilfield Engineering Co. Ltd., Xi’an 710021, China
  • 2. Schlumberger Technoloty Services(Chengdu) Co. Ltd., Chengdu 610012, China
  • 3. Shaanxi Yanchang Petroleum(Group) Co. Ltd., Yan’an 716003, Shaanxi, China
出版时间: 2025-05-25
文章导航
收藏切换

致密砂岩气藏在开发过程中水锁伤害是一个普遍存在的问题,对气井产量和气藏采收率具有严重影响。以鄂尔多斯南缘气藏为例,深入分析了气藏水锁伤害程度,探讨了致密气藏水锁伤害气井的典型生产特征,提出了创新的储层水锁防治工艺,包括使用小尺寸连续油管和保持连续稳定生产等物理措施避免气井过早发生水锁伤害。对于已发生水锁伤害的气井,提出使用了表面活性剂和润湿改性剂作为解水锁剂的重要组成,并用邻井气作为气源进行增压注入的方法,以确保解水锁剂能够快速有效地注入储层并发挥作用。研究结果表明,鄂尔多斯南缘气藏存在中等偏强-强水锁伤害情况,水锁后气井表现出压裂后增产效果不明显、关井后再次开井产量无法恢复以及井筒排液等措施效果有限等生产特征。综合应用这些方法可以有效防止和解除水锁伤害,现场试验效果明显。

致密砂岩  /  水锁  /  生产特征  /  水锁防治

Water blocking damage is a common issue in the development of tight sandstone gas reservoirs, significantly impacting gas well production and reservoir recovery rates. Taking the gas reservoirs in the southern margin of Ordos as an example, the degree of water blocking damage in the gas reservoirs was analyzed, the typical production characteristics of gas wells with water blocking damage in tight gas reservoirs was discussed, and technologies were proposed for the prevention and treatment of reservoir water blocking. The research results indicate that the gas reservoirs in the southern margin of Ordos experience moderate to strong water blocking damage. After water blocking, gas wells exhibit production characteristics such as insignificant production increase after fracturing, inability to restore production after reopening the well following shutdown, and limited effectiveness of wellbore drainage measures. To effectively prevent and treat water blocking damage, comprehensive prevention and treatment methods are proposed, including the use of small-diameter coiled tubing to avoid premature fluid accumulation in gas wells, maintaining continuous and stable production, and implementing physicochemical processes to eliminate water blocking damage. Field test results demonstrate that the integrated application of these methods can effectively prevent and eliminate water blocking damage, thereby restoring gas well production.

tight sandstone  /  water blocking  /  production characteristics  /  prevention and treatment of water blocking
卫颖菲, 李明, 柏险峰, 王军峰, 曹永波, 高振国. 鄂尔多斯南缘致密砂岩气藏储层水锁防治技术应用与实践. 科技和产业, 2025 , 25 (10) : 111 -117 .
Yingfei WEI, Ming LI, Xianfeng BAI, Junfeng WANG, Yongbo CAO, Zhenguo GAO. Application and Practice of Reservoir Water Blocking Prevention Technologies in Tight Sandstone Gas Reservoirs in the Southern Margin of Ordos[J]. Science Technology and Industry, 2025 , 25 (10) : 111 -117 .
致密砂岩气藏作为一种重要的非常规天然气资源,其开发对于优化能源结构具有重要意义[1]。致密砂岩气藏以其低渗透率和高含气饱和度等特点,成为全球油气勘探开发的重要领域。Zou等[2]将原位渗透率小于等于0.1 mD的含气砂岩储层定义为中国致密砂岩气藏的识别标准。致密砂岩气藏在全球范围内分布非常广泛,主要分布在北美地区、阿根廷和中国等国家,全球已发现或推测发育致密砂岩气藏地盆地多达70个[3-4]。美国是全球致密气开发最为成功的国家之一,主要产区包括Permian盆地、Eagle Ford、Marcellus和Utica等地区,占全球致密气储量的80%以上[5]。随着水平钻井、水力压裂等技术的不断发展和完善[6],国内致密气的开发也取得了显著成果,尤其是鄂尔多斯盆地上古生界致密砂岩气藏,已成为中国重要的天然气生产基地[7-11]。然而,在致密气藏开发过程中,水锁伤害是一个普遍存在的问题。在钻井、完井及开采过程中,水相一旦侵入近井储层,含水饱和度急剧增加,气相渗透率降幅可以高达70%以上,导致气井产量大幅下降,影响气藏的采收率[12-13]。这主要是由于极小的喉道尺寸,以及砂岩的亲水性导致产生一个附加的高毛细管压力[14]。若储层能量不足以克服这一毛细管压力,则形成水锁伤害。为了缓解水锁伤害,现场常采取一系列预防及治理措施[15-17],如钻完井过程中,加强储层保护,选择与水相相容性好的钻井液和完井液配方,减少外来水相侵入储层的可能性。在生产过程中,合理保持和控制生产压差,尽可能保持气井处于连续稳定生产,同时避免过大的压差导致水相进一步侵入储层。定期对气井进行监测和维护,及时发现并处理水锁伤害问题,如注入干气或氮气使近井储层气水两相重新分布、进行酸化处理、使用表面活性剂降低界面张力等。本文以鄂尔多斯南缘气藏为例,从分析水锁伤害程度入手,探讨致密气藏水锁伤害气井的典型生产特征,提出储层水锁防治工艺,并以水锁伤害的延XX井为例,综合应用小尺寸连续油管和解除水锁伤害的化学工艺进行综合治理,有效恢复气井生产。
鄂尔多斯盆地天然气富集区的南缘,在其周边自西向东有苏里格气田、靖边气田、榆林气田和子洲气田等。气藏发育盒8段、山1段、山2段及本溪组等砂层组,以岩屑砂岩和岩屑石英砂岩为主,储集空间包括残余粒间孔、粒间溶蚀孔、粒内溶蚀孔、铸模孔和晶间孔,埋深为2 700~3 400 m。目的层盒8和山1段储层物性相近,有效储层平均孔隙度分别为7.45%和7.05%,有效储层平均渗透率分别为0.37 mD和0.31 mD,本溪组储层物性最好,平均渗透率为1.06 mD,平均含水饱和度在55%左右,原始地层压力为22~30 MPa,压力系数为0.81~0.88,平均地层温度109 ℃,地层水矿化度介于140~170 g/L,属于典型的低孔、低渗、低压气藏。
采用水锁伤害指数法评价该气藏水锁伤害的严重程度,取盒8段-本溪组天然岩心各2块,通过岩心驱替实验测定干燥岩心与岩心在束缚水含水饱和度下的气相渗透率,按照式(1)计算水锁指数(water block index,WBI),当WBI介于0~30%,水锁伤害程度弱;WBI介于30%~60%,水锁伤害程度中等;WBI介于60%~90%,水锁伤害程度强;WBI超过90%时,水锁伤害程度极强。
$WBI=\frac{{k}_{0}-{k}_{1}}{{k}_{0}}\times 100\%$
式中:WBI为水锁伤害指数,%;k0为干岩心气相渗透率,mD;k1为岩心在束缚水下的气相渗透率,mD。
气藏岩心水锁指数及伤害程度评价结果如表1所示,盒8段-本溪组的水锁伤害指数在63.4%~82.1%,属于中等偏强-强水锁伤害类型。随着渗透率达降低,水锁伤害指数越高,水锁伤害越严重。
致密砂岩气藏通常需要进行水力压裂以提高其渗透率,使天然气能够更顺畅地流入井筒。然而,在压裂作业完成后,尽管理论上应观察到显著的增产效果,但如果压裂液未能有效排出,而滞留在储层孔隙中形成水锁效应,降低储层渗透率,使得原本期望通过压裂增加的产能被水锁伤害所抵消,导致实际产量未如预期那样大幅提升,甚至可能保持不变或略有下降。这种增产效果的不明显,往往就是水锁伤害的直接体现。Bahrami等[18]以西澳大利亚珀斯盆地致密砂岩气藏为研究对象,采用数值模拟方法研究水锁伤害对压裂前后气井产能的影响,如图1所示。结果表明,在单条裂缝下,水力压裂造成的水锁伤害导致初始产气量仅为未压裂且无水锁伤害的67%,生产后期产量基本相当,累积产量无明显差异,当水力压裂裂缝增加至5条时,即使有水锁伤害的影响,压裂后也可获得更高的产量。因此,对于存在水锁伤害敏感性较强的致密砂岩气藏,小规模的水力压裂反而可能导致无增产效果,而适当规模的水力压裂不仅可以有效改善近井储层孔喉大小,降低水锁伤害发生的概率,同时可以更好地连通远端储层,对提高致密砂岩气藏产量至关重要。
当气井因检修、维护或其他原因需要关停一段时间时,井底压力逐渐恢复,地层中的流体会重新分布,以达到新的压力平衡状态。对于产水或积液的气井而言,这一过程可能导致更多的水相反渗析进入孔隙喉道处,进一步加剧水锁效应。当气井重新开井生产时,由于生产压差不足以克服因水锁导致的额外流动阻力,气体流动受阻,从而导致产量无法恢复到关井前的水平。以鄂尔多斯盆地延X0井为例(图2图3),该井完井油管62 mm,生产初期油压为17.8 MPa,套压为23.8 MPa,日产气量为2.5×104 m3,日产水为6.5 m3,井口产量和压力均较稳定。但由于产水量较大,2020年3月因检修关井8个月,再开井后油套压力不再保持稳定,油压以0.025 MPa/d的速度下降,截至2022年底该井已无法开井生产。分析原因,主要是由于该井产水量较大,关井导致井筒水相反渗析进入储层,在近井储层形成水锁伤害,再加上井底流压恢复,开井后生产压差不足以克服水锁伤害导致的毛管力,远端地层能量无法有效传递至井筒。因此,水锁伤害气井的典型生产动态为油套压力及产量呈同步快速下降趋势。
在致密砂岩气藏的开发中,由于其产量较低,气井积液是导致水锁伤害的一个重要原因。传统的泡沫排水采气等工艺方法虽然能在一定程度上帮助清除井筒内的积液,但对于因积液导致储层水锁的孔隙堵塞却无能为力。因此,仅仅依靠解决井筒积液是远远不够的,还需要从更深层次上解决储层内部的水锁问题。仍以延X0井为例(图4图5),该井停产后,关井后套压恢复至18.8 MPa,但油压保持在1 MPa左右无法恢复,表明油管内积液严重,2023年12月通过井口注气将部门井筒积液压回地层后,再通过环空连续气举到方式实现复产,日排水量达到60 m3,表明近井储层积聚大量的水相。但停止气举后,该井随即停喷,表明气举虽然可以排出井筒及近井储层人工裂缝中积液,但与远端地层有效连通的微孔喉中的水锁伤害依然存在,因此,井筒排液工艺方法无法有效复产。
为了有效避免气藏过早因井筒积液导致储层水锁伤害,应保证气井的产气量大于临界携液产量。目前国内常用李闽模型(式2)和王毅忠模型(式3)计算算临界携液流速,通过流速与流量的转换公式(4),即可得到气井的临界携液流量。
李闽模型:
${v}_{cr}=2.5\sqrt[4]{\frac{({\rho }_{L}-{\rho }_{g})\sigma }{{\rho }_{g}^{2}}}$
王毅忠模型:
${v}_{cr}=1.8\sqrt[4]{\frac{({\rho }_{L}-{\rho }_{g})\sigma }{{\rho }_{g}^{2}}}$
临界携液流量:
${Q}_{cr}=\frac{2.5\times {10}^{4}{v}_{cr}Ap}{TZ}$
式中:vcr为临界携液流速,m/s; ${\rho }_{L}$为液相密度,kg/m3; ${\rho }_{g}$为气相密度,kg/m3; $\sigma $为气液表面张力,N/m;Qcr为临界携液流量,104 m3;A为油管横截面积,m2;p为井口压力,MPa;T为井口温度,℃;Z为天然气偏差因子,无因次。
采用上述两种模型计算气井的临界携液流量,与气井当前产量下是否积液进行比较,结果如表2所示。
表2可以看出,李闽模型和王毅忠模型的临界携液流量均比实际携液产量大,但王毅忠模型更接近实际情况,故选择王毅忠模型对不同尺寸油管的临界携液流量进行分析。与内径62 mm对油管相比,当选用内径为40.3 mm的小尺寸连续油管作为完井管柱时,临界携液流量可降低57%,可以满足日产气0.3×104~1.0×104m3下的生产需求。当井口压力降至2 MPa时,只需0.35×104 m3/d的气量即能有效地将井筒中的积液携带至地面,进而避免气井过早因积液发生水锁伤害。此外,小尺寸连续油管还具有操作灵活、成本低廉等优点,适合在致密砂岩气藏等复杂地质条件下应用。通过精确控制油管的下入深度和位置,可以实现对不同储层段的有效控制和管理,进一步提高气井的生产效率和经济效益。如表3所示。
在致密砂岩气藏的开发过程中,保持气井的连续稳定生产不仅是提高经济效益的关键,也是有效防止水锁伤害的重要措施之一。非客观因素导致的关井,如设备故障、检修维护等,应尽可能避免或减少其发生频率和持续时间,以防止井筒地层水反渗析进入储层,从而避免或减轻水锁伤害。在必须关井的情况下,应尽可能缩短关井时间。对于长时间关井的气井,在气井重新开启后,需要建立足够大的生产压差以克服水锁导致的毛细管力。
对于已经发生水锁伤害的气井,由毛管力的计算公式(5)可知,降低表面张力和增大接触角是解除水锁伤害的有效方法。因此,优选适用于该气藏的表面活性剂和润湿改性剂作为解水锁剂的重要化学组成。
${p}_{c}=\frac{2\sigma cos\theta }{r}$
式中:pc为毛细管力,10-6 MPa;σ液体的表面张力,mN/m;θ为液体与毛细管壁之间的接触角,(°);r为毛细管的半径,m。
表面活性剂能够显著降低地层水与岩石表面之间的表面张力,使水分子更容易从岩石孔隙中脱附并随气流排出。鉴于鄂尔多斯盆地致密气藏地层水矿化度较高,采用耐盐度较好的三种两性离子表面活性剂月桂酰胺基甜菜碱(LAB)、月桂酰胺丙基氧化胺(LAPO)和十二烷基氧化胺(LAO)进行评价,结果如表4所示。在三种两性离子表面活性剂中,LAB活性最好,LAPO次之,LAO活性相对较差,LAB的浓度由50 mg/L增加至5 000 mg/L时,表面张力由29.45 mN/m降至26.34 mN/m,变化范围较小。当浓度达到500 mg/L,再增加浓度,表面张力变化较小。因此,将该浓度确定为该气藏温度和地层水条件的表面活性剂使用浓度。
润湿改性剂则能够改变岩石表面的润湿性,增大地层水在岩石表面的接触角,使水分子更难以在岩石表面形成稳定的薄膜,从而进一步减轻水锁伤害。应用Li等[19]提出的一种适用于致密砂岩气藏的超疏水纳米乳液作为润湿改性剂,使用浓度为10%的润湿改性剂对该气藏的岩心进行改性后,地层水在岩心表面的接触角可以达到133°,达到高疏水状态,可帮助砂岩实现的润湿反转,避免岩心对水相的吸附。如图6所示。
此外,由于储层渗透率低,再加上地层压力的作用,化学解水锁剂难以进入储层。因此,为了确保解水锁剂能够快速有效地注入储层并发挥作用,将邻井气作为气源,解水锁剂注入完成后,随即注入增压后的邻井气段塞,直至井口压力恢复至关井最高压力,不仅可以利用高压气体的能量推动解水锁剂在储层中扩散和渗透,使其更充分地进入储层发挥作用。此外,高压气体的注入还可以为储层提供一定的能量补充,可利用补充的高压气能量进行辅助返排,促使地层中的积液随气流快速排出井筒。
延XX井开发层位为山底,深度为3 050~3 070 m,原始地层压力为20.4 MPa。2011年完成压裂试气,无阻流量4.5×104 m3/d,2021年投产气量仅维持在0.1×104 m3/d左右,生产油压不足1.0 MPa,基本无产水情况,按照无阻流量1/3计算,该井产量应该在1.5×104 m3/d左右,动静态特征严重不符,判断因压裂后未及时投产,压裂液滞留导致储层水锁伤害。如图7所示。
2024年3月28日实施连续油管作业,下入38.1 mm连续油管至井深3 000 m处作为速度管柱,4月9日采用柱塞泵通过注入井口测试法兰,向连续油管内注入由表面活性剂和润湿改性剂组成的解水锁剂6 m3,注入解水锁剂后,通过气体柱塞泵连接邻井延XX1井口,向延XX连续油管内注入邻井天然气。当井口油压恢复至6 MPa后关井,4月10日连接井口放喷管线至放喷罐,开井放喷至所有注入井内的解水锁剂返排结束后关井。如图5所示,关井油压恢复速率与解水锁前对比,解水锁后油压恢复明显变快,关井20 h油压即恢复至6.3 MPa,关井油压恢复速率提升37.5%,表明储层连通性变好。如图8所示,开井后,日产气恢复至1.6×104 m3/d,产水约为0.9 m3,产气和产水量恢复至正常水平。
(1)鄂尔多斯南缘气藏属于典型的低孔、低渗、低压气藏,且存在中等偏强-强水锁伤害,对气井产量和气藏采收率造成严重影响。
(2)致密气藏水锁伤害气井的典型生产特征包括压裂后增产效果不明显、关井后再次开井产量无法恢复以及井筒排液等措施效果有限。
(3)采用小尺寸连续油管可以有效避免气井过早积液,保持连续稳定生产是防止水锁伤害的重要措施之一。
(4)解除水锁伤害的物理化学工艺包括优选表面活性剂和润湿改性剂,降低表面张力和增大接触角,可以有效解除水锁伤害。
(5)现场试验结果表明,采用小尺寸连续油管、注入解水锁剂以及保持连续稳定生产等方法可以有效解除水锁伤害,恢复气井产量,为致密砂岩气藏的高效开发提供了有力支持。
参考文献 引证文献
排序方式:
[1]
邹才能, 翟光明, 张光亚, 等. 全球常规-非常规油气形成分布、资源潜力及趋势预测[J]. 石油勘探与开发, 2015, 42(1): 13-25.
[2]
ZOU C, ZHU R, LIU K, et al. Tight gas sandstone reservoirs in China: characteristics and recognition criteria[J]. Journal of Petroleum Science and Engineering, 2012, 88: 82-91.
[3]
王红军, 马锋, 童晓光, 等. 全球非常规油气资源评价[J]. 石油勘探与开发, 2016, 43(6): 850-862.
[4]
童晓光, 张光亚, 王兆明, 等. 全球油气资源潜力ff与分布[J]. 石油勘探与开发, 2018, 45(4): 727-736.
[5]
庞长英, 连军利, 吴一凡, 等. 美国页岩油气开发技术及对我国的启示[J]. 石油地质与工程, 2012, 26(5): 62-66.
[6]
房凯. 美国“页岩气革命”对亚太能源的影响研究[D]. 杭州: 浙江工业大学, 2014.
[7]
张士亚. 鄂尔多斯盆地天然气气源及勘探方向[J]. 天然气工业, 1994(3): 1-4.
[8]
冀光, 贾爱林, 孟德伟, 等. 大型致密砂岩气田有效开发与提高采收率技术对策——以鄂尔多斯盆地苏里格气田为例[J]. 石油勘探与开发, 2019, 46(3): 602-612.
[9]
吴正, 江乾锋, 周游, 等. 鄂尔多斯盆地苏里格致密砂岩气田提高采收率关键技术及攻关方向[J]. 天然气工业, 2023, 43(6): 66-75.
[10]
刘阳, 刘彦成, 林利明, 等. 鄂尔多斯盆地临兴-神府地区上古生界致密砂岩成岩作用与成储关系研究[J]. 科学技术与工程, 2024, 24(4): 1378-1391.
[11]
M D W, JIA A L, GUANG J I, et al. Water and gas distribution and its controlling factors of large scale tight sand gas fields: a case study of western Sulige gas field, Ordos Basin, NW China[J]. Petroleum Exploration and Development, 2016, 43(4): 663-671.
[12]
杜晓濛, 郭艳琴, 颉嘉琳, 等. 致密砂岩储层敏感性及影响因素分析: 以鄂尔多斯盆地王家湾东南区长6油层组为例[J]. 科学技术与工程, 2024, 24(23): 9710-9717.
[13]
BAHRAMI H, REZAEE M R, NAZHAT D, et al. Effect of water blocking damage on flow efficiency and productivity in tight gas reservoirs[C]// SPE Production and Operations Symposium. Oklahoma, USA: SPE, 2011: 1-7.
[14]
HOLDITCH S A. Factors affecting water blocking and gas flow from hydraulically fractured gas wells[J]. Journal of Petroleum Technology, 1979, 10: 1515-1524.
[15]
WANG H, REZAEE R, SAEEDI A, et al. Numerical modelling of microwave heating treatment for tight gas sand reservoirs[J]. Journal of Petroleum Science and Engineering, 2017, 152: 495-504.
[16]
WANG J, ZHOU F J. Cause analysis and solutions of water blocking damage in cracked/non-cracked tight sandstone gas reservoirs[J]. Petroleum Science, 2021, 18: 219-233.
[17]
李进步, 田冷, 刘志军, 等. 致密砂岩产水气井气举排液模型研究[J]. 科学技术与工程, 2023, 23(12): 5041-5047.
[18]
BAHRAMI H, REZAEE R, CLENNELL B. Water blocking damage in hydraulically fractured tight sand gas reservoirs: an example from Perth Basin, Western Australia[J]. Journal of Petroleum Science and Engineering, 2012, 88: 100-106.
[19]
LI Q, FAN Z, LIU Q, et al. Synthesis of a superhydrophobic fluorinated nano-emulsion and its modification on the wettability of tight sandstone[J]. Materials, 2022, 15(11): 4015.
2025年第25卷第10期
PDF下载
329
152
引用本文
BibTeX
文章信息
  • 接收时间:2024-10-09
  • 首发时间:2025-07-09
  • 出版时间:2025-05-25
补充材料
相关文章
文章信息
作者
出版历史
  • 收稿日期:2024-10-09
基金
作者信息
    1. 斯伦贝谢长和油田工程有限公司, 西安 710021
    2. 斯伦贝谢科技服务(成都)有限公司, 成都 610012
    3. 陕西延长石油(集团)有限责任公司, 陕西 延安 716003
参考文献
分享链接
https://castjournals.cast.org.cn/joweb/kjhcy/CN/1149670641139364539
分享至
全文二维码

扫描看全文

引用本文
BibTeX
本文的引用情况
2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏