Article(id=1322942784608543116, tenantId=1146029695717560320, journalId=1322258508890079423, issueId=1322942002035295141, articleNumber=null, orderNo=null, doi=10.13809/j.cnki.cn32-1825/te.20250021, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1773676800000, receivedDateStr=2026-03-17, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793343738939, onlineDateStr=2026-10-30, pubDate=1790352000000, pubDateStr=2026-09-26, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793343738939, onlineIssueDateStr=2026-10-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793343738939, creator=13701087609, updateTime=1793343738939, updator=13701087609, issue=Issue{id=1322942002035295141, tenantId=1146029695717560320, journalId=1322258508890079423, year='2026', volume='16', issue='5', pageStart='949', pageEnd='1136', issueExtLink='null', onlineDate='null', pubDate='1790352000000', pubDateStr='2026-09-26', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793343552359, creator='13701087609', updateTime=1793344212649, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322944771945267389, tenantId=1146029695717560320, journalId=1322258508890079423, issueId=1322942002035295141, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322944771945267390, tenantId=1146029695717560320, journalId=1322258508890079423, issueId=1322942002035295141, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1103, endPage=1112, ext={EN=ArticleExt(id=1322942784864395661, articleId=1322942784608543116, tenantId=1146029695717560320, journalId=1322258508890079423, language=EN, title=Analysis of scaling causes and descaling effects in downhole tubing of Yanchuannan coalbed methane field, columnId=1322941621217657699, journalTitle=Petroleum Reservoir Evaluation and Development, columnName=Engineering Techniques, runingTitle=null, highlight=
To address the unclear spatial differentiation characteristics of scaling types and the lack of targeted acidizing solutions, this study integrated mineralogical analysis, hydrogeochemical methods, and scale dissolution experiments to elucidate the east-west differentiation patterns of downhole tubing scaling mechanisms within the Yanchuannan coalbed methane (CBM) field. Differentiated descaling technical pathways were formed. Mineralogical characterization revealed that the scaling materials in the western Wanbaoshan structural belt were predominantly calcite, representing typical carbonate scale, whereas those in the eastern Tanping structural belt were a complex mixture of calcite, siderite, pyrite, and clay minerals. Geochemical analysis indicated that a weakly acidic environment with a high-Ca2+/Mg2+ ratio in the west drove rapid carbonate scaling, whereas a weakly alkaline, high-sulfate environment in the east governed mineral composite deposition dominated by iron minerals. Scale dissolution experiments showed that hydrochloric acid (HCl) with a mass fraction of 6% was highly effective against carbonate scale (78.8%-93.0% dissolution rate), whereas a sulfamic acid composite system (descaling agent-to-water volume ratio of 1∶10) had lower corrosivity and achieved a scale dissolution rate of 76.3%-81.9%. Based on these results, a flexible zoning strategy was proposed. Sulfamic acid is recommended as a primary choice for periodic field-wide maintenance. HCl with mass fraction of 6% and corrosion inhibitors can be used for enhanced cleaning at specific stages for severe carbonate scale accumulation in the western region. For eastern composite scales with significant silicate components and insufficient maintenance effects, targeted hydrofluoric acid (HF) treatment may be adopted under strict safety protection. This research forms a precise descaling method of “scale identification—mechanism analysis—acid fluid selection,” providing a theoretical basis and practical guidance for scaling prevention and control in CBM wells under similar geological conditions.
, articleAbstract=null, authors=YAXI JIN1
, 2, HUI XU1
, 2, GUANGRONG ZHANG1
, 3, JUN ZENG1
, 2, WEIHENG WANG1
, 4, SONG YANG1
, 3, WEIXUE HU2, LEI ZHANG2, TINGTING ZHANG2, LI LIU2, authorsList=YAXI JIN, HUI XU, GUANGRONG ZHANG, JUN ZENG, WEIHENG WANG, SONG YANG, WEIXUE HU, LEI ZHANG, TINGTING ZHANG, LI LIU, authorCompany=null, 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, fund=null), CN=ArticleExt(id=1322942787938820510, articleId=1322942784608543116, tenantId=1146029695717560320, journalId=1322258508890079423, language=CN, title=延川南煤层气田井下管柱结垢成因及除垢效果分析, columnId=1322941621964243813, journalTitle=油气藏评价与开发, columnName=工程工艺, runingTitle=null, highlight=
针对结垢类型空间分异特征不清、酸洗方案缺乏针对性等问题,本研究综合运用矿物学分析、水文地球化学方法与溶垢实验,揭示了延川南煤层气田井下管柱结垢机理的东西向分异规律,并构建了差异化除垢技术路径。矿物学特征表明,西部万宝山构造带结垢物以方解石为主,属于典型碳酸盐垢;东部谭坪构造带则为方解石、菱铁矿、黄铁矿及黏土矿物共生的复合垢。地球化学分析揭示,西部弱酸性、高钙镁离子环境驱动碳酸盐快速结垢;东部弱碱性、高硫酸根环境则主导了以铁矿物为主的矿物复合沉积过程。溶垢实验表明,质量分数6%的盐酸(HCl)对碳酸盐垢溶垢性能优异,溶垢率78.8%~93.0%;氨基磺酸复合体系(除垢剂与水体积比1∶10)腐蚀速率更低,溶垢率达76.3%~81.9%。据此提出弹性分区治理策略:氨基磺酸为全气田周期性运维首选药剂;西部碳酸盐垢沉积严重区块,阶段性启用添加缓蚀剂的质量分数6% HCl开展强化清洗;东部硅酸盐组分占比偏高、常规清洗效果不足的复合垢区块,可在完备安全防护条件下采用氢氟酸(HF)进行靶向溶垢处理。该研究形成了“垢型识别—机理解析—酸液优选”的精准除垢方法,为类似地质条件下煤层气井的结垢防治提供了理论依据与工程实践路径。
, articleAbstract=null, authors=靳雅夕1
, 2, 徐辉1
, 2, 张光荣1
, 3, 曾隽1
, 2, 王维恒1
, 4, 杨松1
, 3, 胡微雪2, 张蕾2, 张婷婷2, 刘莉2, authorsList=靳雅夕, 徐辉, 张光荣, 曾隽, 王维恒, 杨松, 胡微雪, 张蕾, 张婷婷, 刘莉, authorCompany=null, correspAuthors=null, authorNote=
靳雅夕(1986—),女,硕士,工程师,从事环境监测及相关评价分析工作。地址:江苏省扬州市邗沟路50号,邮政编码:225007。E-mail:805958885@qq.com
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1 Sinopec Key Laboratory of Deep Coalbed Methane Exploration and Development, Nanjing, Jiangsu 210019, China
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1 中国石化深层煤层气勘探开发重点实验室,江苏 南京 210019
2 中国石化华东油气分公司勘探开发研究院,江苏 扬州 225007, bio={"content":"
靳雅夕(1986—),女,硕士,工程师,从事环境监测及相关评价分析工作。地址:江苏省扬州市邗沟路50号,邮政编码:225007。E-mail:805958885@qq.com
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靳雅夕(1986—),女,硕士,工程师,从事环境监测及相关评价分析工作。地址:江苏省扬州市邗沟路50号,邮政编码:225007。E-mail:805958885@qq.com
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1 Sinopec Key Laboratory of Deep Coalbed Methane Exploration and Development, Nanjing, Jiangsu 210019, China), AuthorCompanyExt(id=1322942788207255969, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, companyId=1322942788186284447, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 中国石化深层煤层气勘探开发重点实验室,江苏 南京 210019)]), AuthorCompany(id=1322942788295336354, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, xref=2, ext=[AuthorCompanyExt(id=1322942788307919267, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, companyId=1322942788295336354, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 Exploration and Development Research Institute, Sinopec East China Oil & Gas Company, Yangzhou, Jiangsu 225007, China), AuthorCompanyExt(id=1322942788320502180, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, companyId=1322942788295336354, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 中国石化华东油气分公司勘探开发研究院,江苏 扬州 225007)])]), Author(id=1322942788828012978, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, 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=1322942792368005557, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, authorId=1322942788828012978, language=EN, stringName=HUI XU, firstName=HUI, middleName=null, lastName=XU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1
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1 Sinopec Key Laboratory of Deep Coalbed Methane Exploration and Development, Nanjing, Jiangsu 210019, China
2 Exploration and Development Research Institute, Sinopec East China Oil & Gas Company, Yangzhou, Jiangsu 225007, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322942792485446070, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, authorId=1322942788828012978, language=CN, stringName=徐辉, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1
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1 中国石化深层煤层气勘探开发重点实验室,江苏 南京 210019
2 中国石化华东油气分公司勘探开发研究院,江苏 扬州 225007, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322942788186284447, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, xref=1, ext=[AuthorCompanyExt(id=1322942788194673056, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, companyId=1322942788186284447, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 Sinopec Key Laboratory of Deep Coalbed Methane Exploration and Development, Nanjing, Jiangsu 210019, China), AuthorCompanyExt(id=1322942788207255969, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, companyId=1322942788186284447, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 中国石化深层煤层气勘探开发重点实验室,江苏 南京 210019)]), AuthorCompany(id=1322942788295336354, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, xref=2, ext=[AuthorCompanyExt(id=1322942788307919267, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, companyId=1322942788295336354, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 Exploration and Development Research Institute, Sinopec East China Oil & Gas Company, Yangzhou, Jiangsu 225007, China), AuthorCompanyExt(id=1322942788320502180, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, companyId=1322942788295336354, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 中国石化华东油气分公司勘探开发研究院,江苏 扬州 225007)])]), Author(id=1322942792598692280, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, 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=1322942792724521403, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, authorId=1322942792598692280, language=EN, stringName=GUANGRONG ZHANG, firstName=GUANGRONG, middleName=null, lastName=ZHANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1
, 3, address=
1 Sinopec Key Laboratory of Deep Coalbed Methane Exploration and Development, Nanjing, Jiangsu 210019, China
3 Sinopec (Shanxi) Coalbed Methane Co., Ltd., Linfen, Shanxi 041099, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322942792900682172, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, authorId=1322942792598692280, language=CN, stringName=张光荣, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1
, 3, address=
1 中国石化深层煤层气勘探开发重点实验室,江苏 南京 210019
3 中国石化(山西)煤层气有限公司,山西 临汾 041099, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322942788186284447, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, xref=1, ext=[AuthorCompanyExt(id=1322942788194673056, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, companyId=1322942788186284447, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 Sinopec Key Laboratory of Deep Coalbed Methane Exploration and Development, Nanjing, Jiangsu 210019, China), AuthorCompanyExt(id=1322942788207255969, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, companyId=1322942788186284447, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 中国石化深层煤层气勘探开发重点实验室,江苏 南京 210019)]), AuthorCompany(id=1322942788395999653, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, xref=3, ext=[AuthorCompanyExt(id=1322942788408582566, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, companyId=1322942788395999653, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3 Sinopec (Shanxi) Coalbed Methane Co., Ltd., Linfen, Shanxi 041099, China), AuthorCompanyExt(id=1322942788425359783, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, companyId=1322942788395999653, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3 中国石化(山西)煤层气有限公司,山西 临汾 041099)])]), Author(id=1322942793001345470, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, 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=1322942793093620161, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, authorId=1322942793001345470, language=EN, stringName=JUN ZENG, firstName=JUN, middleName=null, lastName=ZENG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1
, 2, address=
1 Sinopec Key Laboratory of Deep Coalbed Methane Exploration and Development, Nanjing, Jiangsu 210019, China
2 Exploration and Development Research Institute, Sinopec East China Oil & Gas Company, Yangzhou, Jiangsu 225007, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322942793169117634, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, authorId=1322942793001345470, language=CN, stringName=曾隽, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1
, 2, address=
1 中国石化深层煤层气勘探开发重点实验室,江苏 南京 210019
2 中国石化华东油气分公司勘探开发研究院,江苏 扬州 225007, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322942788186284447, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, xref=1, ext=[AuthorCompanyExt(id=1322942788194673056, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, companyId=1322942788186284447, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 Sinopec Key Laboratory of Deep Coalbed Methane Exploration and Development, Nanjing, Jiangsu 210019, China), AuthorCompanyExt(id=1322942788207255969, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, companyId=1322942788186284447, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 中国石化深层煤层气勘探开发重点实验室,江苏 南京 210019)]), AuthorCompany(id=1322942788295336354, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, xref=2, ext=[AuthorCompanyExt(id=1322942788307919267, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, companyId=1322942788295336354, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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47(8): 1675-1677., articleTitle=Development of CBM scale inhibitor, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1322942788186284447, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, xref=1, ext=[AuthorCompanyExt(id=1322942788194673056, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, companyId=1322942788186284447, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 Sinopec Key Laboratory of Deep Coalbed Methane Exploration and Development, Nanjing, Jiangsu 210019, China), AuthorCompanyExt(id=1322942788207255969, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, companyId=1322942788186284447, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 中国石化深层煤层气勘探开发重点实验室,江苏 南京 210019)]), AuthorCompany(id=1322942788295336354, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, xref=2, ext=[AuthorCompanyExt(id=1322942788307919267, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, companyId=1322942788295336354, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 Exploration and Development Research Institute, Sinopec East China Oil & Gas Company, Yangzhou, Jiangsu 225007, China), AuthorCompanyExt(id=1322942788320502180, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, companyId=1322942788295336354, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 中国石化华东油气分公司勘探开发研究院,江苏 扬州 225007)]), AuthorCompany(id=1322942788395999653, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, xref=3, ext=[AuthorCompanyExt(id=1322942788408582566, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, companyId=1322942788395999653, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3 Sinopec (Shanxi) Coalbed Methane Co., Ltd., Linfen, Shanxi 041099, China), AuthorCompanyExt(id=1322942788425359783, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, companyId=1322942788395999653, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3 中国石化(山西)煤层气有限公司,山西 临汾 041099)]), AuthorCompany(id=1322942788509245864, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, xref=4, ext=[AuthorCompanyExt(id=1322942788521828777, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, companyId=1322942788509245864, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
4 Petroleum Engineering Technology Research Institute, Sinopec East China Oil & Gas Company, Nanjing, Jiangsu 210004, China), AuthorCompanyExt(id=1322942788530217386, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, companyId=1322942788509245864, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
4 中国石化华东油气分公司石油工程技术研究院,江苏 南京 210004)])], figs=[ArticleFig(id=1322942800945357294, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, language=EN, label=Fig.1, caption=
Geological structural location of Yanchuannan coalbed methane field and downhole tubing scaling conditions, figureFileSmall=Qjkth6BiB0XjEYoqc0iKSg==, figureFileBig=TkzOssDXdahkt+GrFKAnTw==, tableContent=null), ArticleFig(id=1322942801020854767, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, language=CN, label=图1, caption=
延川南煤层气田地质构造位置及井下管柱结垢情况注:a为延川南煤层气田地质构造;b为抽油杆外壁结垢严重,呈棕黄色;c为管内壁结垢严重;d为泵筒外壁结垢严重,呈灰白色;e为泵筒固定阀结垢严重,呈黑色。
, figureFileSmall=Qjkth6BiB0XjEYoqc0iKSg==, figureFileBig=TkzOssDXdahkt+GrFKAnTw==, tableContent=null), ArticleFig(id=1322942801800995312, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, language=EN, label=Fig.2, caption=
Physical photos of scale samples collected at wellsite in Yanchuannan CBM field, figureFileSmall=A8pnrjX3EflwoF/ux/GVjQ==, figureFileBig=0E7uz5zv8RGaYOVTh5hCAQ==, tableContent=null), ArticleFig(id=1322942801868104177, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, language=CN, label=图2, caption=
延川南煤层气田井场采集垢样实物图, figureFileSmall=A8pnrjX3EflwoF/ux/GVjQ==, figureFileBig=0E7uz5zv8RGaYOVTh5hCAQ==, tableContent=null), ArticleFig(id=1322942801968767474, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, language=EN, label=Fig.3, caption=
Main element and mineral contents of scale samples, figureFileSmall=MPY29gG6/y/VOPSJffNX7Q==, figureFileBig=r0F59ZwJb70MotW/EJOg4A==, tableContent=null), ArticleFig(id=1322942802056847859, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, language=CN, label=图3, caption=
结垢物主要元素及主要矿物含量, figureFileSmall=MPY29gG6/y/VOPSJffNX7Q==, figureFileBig=r0F59ZwJb70MotW/EJOg4A==, tableContent=null), ArticleFig(id=1322942802140733940, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, language=EN, label=Fig.4, caption=
X-ray diffraction (XRD) spectra of representative scale samples, figureFileSmall=h3jXJwhEv3OHRkiql+DL2g==, figureFileBig=59uuy3Cw4p7x/uaowNBbRQ==, tableContent=null), ArticleFig(id=1322942802228814325, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, language=CN, label=图4, caption=
结垢物代表样品XRD检测图谱, figureFileSmall=h3jXJwhEv3OHRkiql+DL2g==, figureFileBig=59uuy3Cw4p7x/uaowNBbRQ==, tableContent=null), ArticleFig(id=1322942802291728886, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, language=EN, label=Fig.5, caption=
Saturation scaling tendency indices of LSI andRSI based on produced water ion concentration, figureFileSmall=mfPeU1WGPuamQLxVz/FSCg==, figureFileBig=woWKcfr+Hx7M/gsff2QClg==, tableContent=null), ArticleFig(id=1322942802354643447, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, language=CN, label=图5, caption=
基于采出水离子质量浓度的LSI和RSI饱和结垢倾向指数, figureFileSmall=mfPeU1WGPuamQLxVz/FSCg==, figureFileBig=woWKcfr+Hx7M/gsff2QClg==, tableContent=null), ArticleFig(id=1322942802425946616, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, language=EN, label=Fig.6, caption=
Scale dissolution efficiency of hydrochloric acid and sulfamic acid composite system, figureFileSmall=ME0nFzMn6kgZF62xQkfyZA==, figureFileBig=P0BRzjb+S7sHOf50TQU/UQ==, tableContent=null), ArticleFig(id=1322942802488861177, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, language=CN, label=图6, caption=
HCl和氨基磺酸复合体系溶垢效率, figureFileSmall=ME0nFzMn6kgZF62xQkfyZA==, figureFileBig=P0BRzjb+S7sHOf50TQU/UQ==, tableContent=null), ArticleFig(id=1322942802568552954, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, language=EN, label=Fig.7, caption=
Comparison of corrosion effects of different acid systems on N80 steel coupons, figureFileSmall=P7e8e8ESeZ+HTj8Qxr7/Kw==, figureFileBig=r/ShW3fdAJkgrYxkYvm0Uw==, tableContent=null), ArticleFig(id=1322942802644050427, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, language=CN, label=图7, caption=
不同酸液体系对N80标准钢片的腐蚀效果对比, figureFileSmall=P7e8e8ESeZ+HTj8Qxr7/Kw==, figureFileBig=r/ShW3fdAJkgrYxkYvm0Uw==, tableContent=null), ArticleFig(id=1322942802723742204, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, language=EN, label=Fig.8, caption=
Comparison of field descaling performance between western Wanbaoshan and eastern Tanping structural belts, figureFileSmall=4Q1TOscjw+C7gFV98+I7mw==, figureFileBig=3TJu+QcNBrdgAL5EXPTNfg==, tableContent=null), ArticleFig(id=1322942802790851069, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, language=CN, label=图8, caption=
西部万宝山构造带和东部谭坪构造带现场除垢对比, figureFileSmall=4Q1TOscjw+C7gFV98+I7mw==, figureFileBig=3TJu+QcNBrdgAL5EXPTNfg==, tableContent=null), ArticleFig(id=1322942802883125758, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, language=EN, label=Table 1, caption=
Sampling information of scale samples in Yanchuannan coalbed methane field, figureFileSmall=null, figureFileBig=null, tableContent=
| 构造带 | 样品号 | 平台 | 井号 | 井深/m | 取样位置/m | 样品状态 | 备注 |
|---|
| 万宝山 | 1 | W146 | Y3-26-20 | 1 265.6 | 1 131.1 | 厚片状、浅棕色 | 油管内壁 |
| 2 | W146 | Y3-26-20 | 1 265.6 | 1 131.1 | 薄片状、浅棕色 | 油管内壁 |
| 4 | W142 | Y3-P4 | 2 829.2 | 1 030.0 | 薄片状、灰色、内壁蓝色 | 油管内壁 |
| 5 | W10 | Y6-2-20 | 1 283.5 | 1 228.0 | 薄片状、乳白色 | 泵筒固定阀 |
| 6 | W10 | Y6-2-20 | 1 283.5 | 1 228.0 | 厚片状、灰白色、灰色 | 油管内壁 |
| 7 | W75 | Y21-TP13 | 2 407.0 | 0~10.0 | 粉末状、棕色 | 油管内壁 |
| 谭坪 | 3 | TN-1 | Y1-10-12 | 1 275.9 | 1 221.1 | 薄片状、深棕色 | 油管内壁 |
| 8 | T85 | Y1-58-24 | 1 143.4 | 1 031.0 | 薄片状、深棕色 | 油管内壁 |
| 9 | T83 | Y1-52-16 | 893.3 | 729.0 | 薄片状、棕色 | 油管内壁 |
), ArticleFig(id=1322942804791534079, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, language=CN, label=表1, caption=
延川南煤层气田垢样取样信息
, figureFileSmall=null, figureFileBig=null, tableContent=
| 构造带 | 样品号 | 平台 | 井号 | 井深/m | 取样位置/m | 样品状态 | 备注 |
|---|
| 万宝山 | 1 | W146 | Y3-26-20 | 1 265.6 | 1 131.1 | 厚片状、浅棕色 | 油管内壁 |
| 2 | W146 | Y3-26-20 | 1 265.6 | 1 131.1 | 薄片状、浅棕色 | 油管内壁 |
| 4 | W142 | Y3-P4 | 2 829.2 | 1 030.0 | 薄片状、灰色、内壁蓝色 | 油管内壁 |
| 5 | W10 | Y6-2-20 | 1 283.5 | 1 228.0 | 薄片状、乳白色 | 泵筒固定阀 |
| 6 | W10 | Y6-2-20 | 1 283.5 | 1 228.0 | 厚片状、灰白色、灰色 | 油管内壁 |
| 7 | W75 | Y21-TP13 | 2 407.0 | 0~10.0 | 粉末状、棕色 | 油管内壁 |
| 谭坪 | 3 | TN-1 | Y1-10-12 | 1 275.9 | 1 221.1 | 薄片状、深棕色 | 油管内壁 |
| 8 | T85 | Y1-58-24 | 1 143.4 | 1 031.0 | 薄片状、深棕色 | 油管内壁 |
| 9 | T83 | Y1-52-16 | 893.3 | 729.0 | 薄片状、棕色 | 油管内壁 |
), ArticleFig(id=1322942804875420160, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, language=EN, label=Table 2, caption=
Elemental and mineral composition of scale samples in Yanchuannan CBM field, figureFileSmall=null, figureFileBig=null, tableContent=
| 构造带 | 样品号 | Ca | S | Si | Fe | Ba | Al | Sr | Ti | Cr | Co |
|---|
| 万宝山 | 1 | 35.87 | 0.90 | 2.62 | 1.08 | 1.32 | 1.27 | 0.74 | 0.58 | 0.06 | 0 |
| 2 | 34.77 | 1.07 | 1.81 | 1.99 | 1.81 | 0.96 | 0.81 | 0.74 | 0.01 | 0 |
| 4 | 38.39 | 0.27 | 2.84 | 0.79 | 0.81 | 1.27 | 0.68 | 0.40 | 0.04 | 0.03 |
| 5 | 35.15 | 0.12 | 1.43 | 3.28 | 1.34 | 0.85 | 0.61 | 0.53 | 0.01 | 0 |
| 6 | 41.05 | 0.13 | 1.80 | 0.00 | 1.14 | 1.06 | 0.55 | 0.53 | 0.02 | 0.04 |
| 7 | 31.79 | 0.12 | 1.50 | 1.58 | 0.44 | 0.84 | 0.56 | 0.17 | 0.03 | 0 |
| 谭坪 | 3 | 21.20 | 7.20 | 2.70 | 21.70 | 0.13 | 1.40 | 0.19 | 0.09 | 0.03 | 0 |
| 8 | 28.10 | 5.40 | 4.70 | 18.50 | 0.22 | 2.30 | 0.21 | 0.17 | 0.16 | 0 |
| 9 | 20.62 | 8.27 | 4.78 | 24.30 | 0.10 | 2.16 | 0.17 | 0.03 | 0.05 | 0 |
| 构造带 | 样品号 | 方解石 | 文石 | 菱铁矿 | 黄铁矿 | 黏土矿物 | 石英 | 钾长石 | 斜长石 |
| 万宝山 | 1 | 90.4 | 1.6 | 0 | 0.4 | 4.7 | 1.5 | 0.6 | 0.8 |
| 2 | 92.7 | 1.8 | 0 | 0.8 | 3.2 | 0.5 | 0.6 | 0.4 |
| 4 | 96.0 | 0 | 0 | 0.1 | 0 | 2.8 | 0.6 | 0.5 |
| 5 | 98.8 | 0 | 0 | 0.6 | 0 | 0.3 | 0.2 | 0.1 |
| 6 | 99.1 | 0 | 0 | 0 | 0 | 0.6 | 0.2 | 0.1 |
| 7 | 97.1 | 0 | 0 | 0.5 | 0 | 1.4 | 0.3 | 0.7 |
| 谭坪 | 3 | 68.4 | 0 | 11.3 | 3.8 | 7.8 | 6.4 | 0.6 | 1.7 |
| 8 | 71.1 | 0 | 8.8 | 1.9 | 8.5 | 9.7 | 0 | 0 |
| 9 | 66.3 | 0 | 11.6 | 4.5 | 9.1 | 7.9 | 0.6 | 0 |
), ArticleFig(id=1322942804971889153, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, language=CN, label=表2, caption=
延川南煤层气田垢样元素组成及矿物组成
, figureFileSmall=null, figureFileBig=null, tableContent=
| 构造带 | 样品号 | Ca | S | Si | Fe | Ba | Al | Sr | Ti | Cr | Co |
|---|
| 万宝山 | 1 | 35.87 | 0.90 | 2.62 | 1.08 | 1.32 | 1.27 | 0.74 | 0.58 | 0.06 | 0 |
| 2 | 34.77 | 1.07 | 1.81 | 1.99 | 1.81 | 0.96 | 0.81 | 0.74 | 0.01 | 0 |
| 4 | 38.39 | 0.27 | 2.84 | 0.79 | 0.81 | 1.27 | 0.68 | 0.40 | 0.04 | 0.03 |
| 5 | 35.15 | 0.12 | 1.43 | 3.28 | 1.34 | 0.85 | 0.61 | 0.53 | 0.01 | 0 |
| 6 | 41.05 | 0.13 | 1.80 | 0.00 | 1.14 | 1.06 | 0.55 | 0.53 | 0.02 | 0.04 |
| 7 | 31.79 | 0.12 | 1.50 | 1.58 | 0.44 | 0.84 | 0.56 | 0.17 | 0.03 | 0 |
| 谭坪 | 3 | 21.20 | 7.20 | 2.70 | 21.70 | 0.13 | 1.40 | 0.19 | 0.09 | 0.03 | 0 |
| 8 | 28.10 | 5.40 | 4.70 | 18.50 | 0.22 | 2.30 | 0.21 | 0.17 | 0.16 | 0 |
| 9 | 20.62 | 8.27 | 4.78 | 24.30 | 0.10 | 2.16 | 0.17 | 0.03 | 0.05 | 0 |
| 构造带 | 样品号 | 方解石 | 文石 | 菱铁矿 | 黄铁矿 | 黏土矿物 | 石英 | 钾长石 | 斜长石 |
| 万宝山 | 1 | 90.4 | 1.6 | 0 | 0.4 | 4.7 | 1.5 | 0.6 | 0.8 |
| 2 | 92.7 | 1.8 | 0 | 0.8 | 3.2 | 0.5 | 0.6 | 0.4 |
| 4 | 96.0 | 0 | 0 | 0.1 | 0 | 2.8 | 0.6 | 0.5 |
| 5 | 98.8 | 0 | 0 | 0.6 | 0 | 0.3 | 0.2 | 0.1 |
| 6 | 99.1 | 0 | 0 | 0 | 0 | 0.6 | 0.2 | 0.1 |
| 7 | 97.1 | 0 | 0 | 0.5 | 0 | 1.4 | 0.3 | 0.7 |
| 谭坪 | 3 | 68.4 | 0 | 11.3 | 3.8 | 7.8 | 6.4 | 0.6 | 1.7 |
| 8 | 71.1 | 0 | 8.8 | 1.9 | 8.5 | 9.7 | 0 | 0 |
| 9 | 66.3 | 0 | 11.6 | 4.5 | 9.1 | 7.9 | 0.6 | 0 |
), ArticleFig(id=1322942805051580930, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, language=EN, label=Table 3, caption=
Produced water ion concentration analysis, figureFileSmall=null, figureFileBig=null, tableContent=
| 构造带 | 井号 | pH值 | Na+/(mg/L) | K+/(mg/L) | Mg2+/(mg/L) | Ca2+/(mg/L) | Cl-/(mg/L) | SO/(mg/L) | CO/(mg/L) | HCO/(mg/L) | 矿化度/(mg/L) |
|---|
| 万宝山 | Y3-26-20 | 7.12 | 7 629 | 27 | 522 | 3 269 | 18 889 | 0 | 0 | 397 | 30 731 |
| Y3-P4 | 6.60 | 27 172 | 37 | 1 130 | 8 173 | 63 399 | 27 | 0 | 213 | 100 151 |
| Y6-2-20 | 7.20 | 4 440 | 14 | 182 | 894 | 9 080 | 26 | 0 | 686 | 15 321 |
| Y21-TP13 | 6.50 | 9 968 | 63 | 2 854 | 17 964 | 58 902 | 0 | 0 | 397 | 90 148 |
| 谭坪 | Y1-10-12 | 8.06 | 1 514 | 35 | 74 | 254 | 2 553 | 1 494 | 180 | 2 319 | 8 423 |
| Y1-58-24 | 7.70 | 699 | 12 | 39 | 94 | 279 | 179 | 0 | 2 044 | 3 292 |
| Y1-52-16 | 8.59 | 916 | 1 | 61 | 114 | 348 | 1 177 | 0 | 641 | 3 348 |
), ArticleFig(id=1322942805127078403, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, language=CN, label=表3, caption=
采出水离子质量浓度分析
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| 构造带 | 井号 | pH值 | Na+/(mg/L) | K+/(mg/L) | Mg2+/(mg/L) | Ca2+/(mg/L) | Cl-/(mg/L) | SO/(mg/L) | CO/(mg/L) | HCO/(mg/L) | 矿化度/(mg/L) |
|---|
| 万宝山 | Y3-26-20 | 7.12 | 7 629 | 27 | 522 | 3 269 | 18 889 | 0 | 0 | 397 | 30 731 |
| Y3-P4 | 6.60 | 27 172 | 37 | 1 130 | 8 173 | 63 399 | 27 | 0 | 213 | 100 151 |
| Y6-2-20 | 7.20 | 4 440 | 14 | 182 | 894 | 9 080 | 26 | 0 | 686 | 15 321 |
| Y21-TP13 | 6.50 | 9 968 | 63 | 2 854 | 17 964 | 58 902 | 0 | 0 | 397 | 90 148 |
| 谭坪 | Y1-10-12 | 8.06 | 1 514 | 35 | 74 | 254 | 2 553 | 1 494 | 180 | 2 319 | 8 423 |
| Y1-58-24 | 7.70 | 699 | 12 | 39 | 94 | 279 | 179 | 0 | 2 044 | 3 292 |
| Y1-52-16 | 8.59 | 916 | 1 | 61 | 114 | 348 | 1 177 | 0 | 641 | 3 348 |
), ArticleFig(id=1322942805223547396, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, language=EN, label=Table 4, caption=
Corrosion rate of different acid systems on N80 steel coupons, figureFileSmall=null, figureFileBig=null, tableContent=
| 6% HCl体系 | 氨基磺酸复合体系(1∶10配比) |
|---|
| 编号 | 腐蚀速率/[g/(m²·h)] | 平均腐蚀速率/[g/(m²·h)] | 编号 | 腐蚀速率/[g/(m²·h)] | 平均腐蚀速率/[g/(m²·h)] |
| 1 | 23.1 | 23.97 | 4 | 2.30 | 2.33 |
| 2 | 23.6 | 5 | 2.30 |
| 3 | 22.3 | 6 | 2.38 |
), ArticleFig(id=1322942805307433477, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, language=CN, label=表4, caption=
不同酸液体系对N80标准钢片的腐蚀速率
, figureFileSmall=null, figureFileBig=null, tableContent=
| 6% HCl体系 | 氨基磺酸复合体系(1∶10配比) |
|---|
| 编号 | 腐蚀速率/[g/(m²·h)] | 平均腐蚀速率/[g/(m²·h)] | 编号 | 腐蚀速率/[g/(m²·h)] | 平均腐蚀速率/[g/(m²·h)] |
| 1 | 23.1 | 23.97 | 4 | 2.30 | 2.33 |
| 2 | 23.6 | 5 | 2.30 |
| 3 | 22.3 | 6 | 2.38 |
), ArticleFig(id=1322942805496177158, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, language=EN, label=Table 5, caption=
Comprehensive comparison of descaling schemes in Yanchuannan coalbed methane field, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案名称 | 原料成本 | 安全性 | 综合评价 |
|---|
| HCl体系 | 低 | 中(腐蚀,H2S风险) | 经济,适用于碳酸盐垢为主区域 |
| 氨基磺酸复合体系 | 高 | 低(温和,无氯脆) | 价格较贵,适用于碳酸盐垢为主的防腐/环保敏感区 |
| HF复配体系 | 中 | 高(剧毒、强腐蚀) | 适用于硅酸盐复合垢区域,技术必要性高,风险最高 |
), ArticleFig(id=1322942805575868935, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942784608543116, language=CN, label=表5, caption=
延川南煤层气田除垢方案综合对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案名称 | 原料成本 | 安全性 | 综合评价 |
|---|
| HCl体系 | 低 | 中(腐蚀,H2S风险) | 经济,适用于碳酸盐垢为主区域 |
| 氨基磺酸复合体系 | 高 | 低(温和,无氯脆) | 价格较贵,适用于碳酸盐垢为主的防腐/环保敏感区 |
| HF复配体系 | 中 | 高(剧毒、强腐蚀) | 适用于硅酸盐复合垢区域,技术必要性高,风险最高 |
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