Article(id=1149768940936671283, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1149768937925165147, articleNumber=null, orderNo=null, doi=10.12404/j.issn.1671-1815.2406025, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1723305600000, receivedDateStr=2024-08-11, revisedDate=1731772800000, revisedDateStr=2024-11-17, acceptedDate=null, acceptedDateStr=null, onlineDate=1752055877193, onlineDateStr=2025-07-09, pubDate=1748361600000, pubDateStr=2025-05-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1752055877193, onlineIssueDateStr=2025-07-09, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1752055877193, creator=13701087609, updateTime=1752055877193, updator=13701087609, issue=Issue{id=1149768937925165147, tenantId=1146029695717560320, journalId=1146123166801305609, year='2025', volume='25', issue='15', pageStart='6155', pageEnd='6586', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1752055876475, creator=13701087609, updateTime=1768456822194, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1218559490207699090, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1149768937925165147, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1218559490211893395, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1149768937925165147, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=6290, endPage=6296, ext={EN=ArticleExt(id=1149768941200912437, articleId=1149768940936671283, tenantId=1146029695717560320, journalId=1146123166801305609, language=EN, title=Effect of CO
2 Flooding Asphaltene Differential Precipitation on Reservoir Heterogeneity in Low Permeability Reservoirs in Jilin, columnId=1156262729003422020, journalTitle=Science Technology and Engineering, columnName=Papers·Petroleum and Natural Gas Industry, runingTitle=null, highlight=null, articleAbstract=
CO2 flooding is one of the most effective technical means to improve the recovery of low permeability reservoirs. However, the injected CO2 will cause asphaltene precipitation in crude oil, resulting in the decrease of reservoir permeability and the change of reservoir heterogeneity. In order to clarify the effect of asphaltene differential precipitation on the heterogeneity of low permeability reservoirs under different pressure conditions, a low permeability reservoir in Jilin Oilfield was taken as the research object. Through the CO2 long core displacement experiment, the CO2 displacement characteristics under different pressures were clarified. At the same time, combined with the test results of crude oil and core properties, the changes of crude oil asphaltene content and reservoir properties before and after displacement under different pressure conditions were analyzed, and the distribution law of asphaltene precipitation was further clarified. The results show that under immiscible conditions, the degree of crude oil recovery is low, only 55.11%. The asphaltene precipitation increases first and then decreases with the increase of displacement distance. CO2 mainly displaces the large pore throat crude oil, and the asphaltene precipitation also mainly occurs in the high permeability area, thus inhibiting the reservoir heterogeneity. Under miscible conditions, the degree of crude oil recovery is high, up to 81.84%. Asphaltene precipitation increases with the increase of displacement distance. CO2 can displace small pore throat crude oil. Asphaltene precipitation occurs in high permeability and low permeability areas, but low permeability areas are greatly affected, and reservoir heterogeneity is further strengthened.
, correspAuthors=Wen-kui HUANG, 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=Shi-hao WEN, Zhong-cheng LI, Ming-yi LI, Li CHEN, Jin-long LI, Wei CHEN, Wen-kui HUANG), CN=ArticleExt(id=1149768963086791095, articleId=1149768940936671283, tenantId=1146029695717560320, journalId=1146123166801305609, language=CN, title=吉林某低渗透油藏CO
2驱沥青质沉淀对储层非均质性的影响, columnId=1156262729603207500, journalTitle=科学技术与工程, columnName=论文·石油、天然气工业, runingTitle=null, highlight=null, articleAbstract=
CO2驱是提高低渗透油藏采收率最有效的技术手段之一,但注入的CO2会引发原油中沥青质沉淀,导致储层渗透率下降并改变储层的非均质性。为明确不同压力条件下沥青质差异化沉淀对低渗透储层非均质性的影响,以吉林油田某低渗透油藏为研究对象,通过CO2长岩心驱替实验,明确了不同压力下的CO2驱替特征,同时结合原油及岩心性质测试结果,分析不同压力条件下驱替前后原油沥青质含量及储层性质变化,进一步明确了沥青质沉淀的分布规律。结果表明:非混相条件下,原油采出程度较低,仅为55.11%,沥青质沉淀随驱替距离的增加呈现先增加后减小的趋势,CO2主要驱替大孔喉原油,沥青质沉淀也主要发生在高渗区域内,从而抑制了储层非均质性;混相条件下,原油采出程度较高,达81.84%,沥青质沉淀随驱替距离的增加而增加,CO2能够驱替小孔喉原油,沥青质沉淀发生在高渗及低渗区域,但低渗区域受到的影响大,储层非均质性进一步加强。
, correspAuthors=黄文奎, authorNote=null, correspAuthorsNote=
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, authorsList=文士豪, 李忠诚, 李明义, 陈栗, 李金龙, 陈伟, 黄文奎)}, authors=[Author(id=1172930837763994389, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=wenshh@petrochina.com.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1172930837852074775, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, authorId=1172930837763994389, language=EN, stringName=Shi-hao WEN, firstName=Shi-hao, middleName=null, lastName=WEN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=
1 PetroChina Jilin Oilfield Company, Songyuan 138000, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1172930837902406424, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, authorId=1172930837763994389, language=CN, stringName=文士豪, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=
1 中国石油吉林油田公司, 松原 138000, bio={"content":"
文士豪(1976—),男,汉族,四川南充人,硕士,高级工程师。研究方向:油气田开发。E-mail:wenshh@petrochina.com.cn。
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文士豪(1976—),男,汉族,四川南充人,硕士,高级工程师。研究方向:油气田开发。E-mail:wenshh@petrochina.com.cn。
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1 PetroChina Jilin Oilfield Company, Songyuan 138000, China), AuthorCompanyExt(id=1172930837424255752, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, companyId=1172930837407478534, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 中国石油吉林油田公司, 松原 138000)])]), Author(id=1172930837973709594, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, 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=1172930838049207068, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, authorId=1172930837973709594, language=EN, stringName=Zhong-cheng LI, firstName=Zhong-cheng, middleName=null, lastName=LI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2 China Petroleum Jilin Oilfield Exploration and Development Research Institute, Songyuan 138000, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1172930838112121629, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, authorId=1172930837973709594, language=CN, stringName=李忠诚, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2 中国石油吉林油田公司勘探开发研究院, 松原 138000, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1172930837503947529, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, xref=2, ext=[AuthorCompanyExt(id=1172930837520724746, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, companyId=1172930837503947529, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 China Petroleum Jilin Oilfield Exploration and Development Research Institute, Songyuan 138000, China), AuthorCompanyExt(id=1172930837529113355, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, companyId=1172930837503947529, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 中国石油吉林油田公司勘探开发研究院, 松原 138000)])]), Author(id=1172930838166647583, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, 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=1172930838225367841, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, authorId=1172930838166647583, language=EN, stringName=Ming-yi LI, firstName=Ming-yi, middleName=null, lastName=LI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2 China Petroleum Jilin Oilfield Exploration and Development Research Institute, Songyuan 138000, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1172930838300865314, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, authorId=1172930838166647583, language=CN, stringName=李明义, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, address=
2 中国石油吉林油田公司勘探开发研究院, 松原 138000, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1172930837503947529, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, xref=2, ext=[AuthorCompanyExt(id=1172930837520724746, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, companyId=1172930837503947529, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 China Petroleum Jilin Oilfield Exploration and Development Research Institute, Songyuan 138000, China), AuthorCompanyExt(id=1172930837529113355, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, companyId=1172930837503947529, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 中国石油吉林油田公司勘探开发研究院, 松原 138000)])]), Author(id=1172930838363779876, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, 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=1172930838430888742, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, authorId=1172930838363779876, language=EN, stringName=Li CHEN, firstName=Li, middleName=null, lastName=CHEN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, address=
2 China Petroleum Jilin Oilfield Exploration and Development Research Institute, Songyuan 138000, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1172930838485414695, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, authorId=1172930838363779876, language=CN, stringName=陈栗, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, address=
2 中国石油吉林油田公司勘探开发研究院, 松原 138000, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1172930837503947529, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, xref=2, ext=[AuthorCompanyExt(id=1172930837520724746, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, companyId=1172930837503947529, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 China Petroleum Jilin Oilfield Exploration and Development Research Institute, Songyuan 138000, China), AuthorCompanyExt(id=1172930837529113355, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, companyId=1172930837503947529, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 中国石油吉林油田公司勘探开发研究院, 松原 138000)])]), Author(id=1172930838602855209, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, 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=1172930838661575467, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, authorId=1172930838602855209, language=EN, stringName=Jin-long LI, firstName=Jin-long, middleName=null, lastName=LI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2 China Petroleum Jilin Oilfield Exploration and Development Research Institute, Songyuan 138000, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1172930838737072940, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, authorId=1172930838602855209, language=CN, stringName=李金龙, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, address=
2 中国石油吉林油田公司勘探开发研究院, 松原 138000, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1172930837503947529, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, xref=2, ext=[AuthorCompanyExt(id=1172930837520724746, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, companyId=1172930837503947529, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 China Petroleum Jilin Oilfield Exploration and Development Research Institute, Songyuan 138000, China), AuthorCompanyExt(id=1172930837529113355, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, companyId=1172930837503947529, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 中国石油吉林油田公司勘探开发研究院, 松原 138000)])]), Author(id=1172930838820959022, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, 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=1172930838896456496, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, authorId=1172930838820959022, language=EN, stringName=Wei CHEN, firstName=Wei, middleName=null, lastName=CHEN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, address=
2 China Petroleum Jilin Oilfield Exploration and Development Research Institute, Songyuan 138000, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1172930838976148273, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, authorId=1172930838820959022, language=CN, stringName=陈伟, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, address=
2 中国石油吉林油田公司勘探开发研究院, 松原 138000, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1172930837503947529, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, xref=2, ext=[AuthorCompanyExt(id=1172930837520724746, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, companyId=1172930837503947529, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 China Petroleum Jilin Oilfield Exploration and Development Research Institute, Songyuan 138000, China), AuthorCompanyExt(id=1172930837529113355, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, companyId=1172930837503947529, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 中国石油吉林油田公司勘探开发研究院, 松原 138000)])]), Author(id=1172930839039062835, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, orderNo=6, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=17354378392@163.com, emailSecond=null, emailThird=null, correspondingAuthor=1, authorType=1, ext={EN=AuthorExt(id=1172930839106171702, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, authorId=1172930839039062835, language=EN, stringName=Wen-kui HUANG, firstName=Wen-kui, middleName=null, lastName=HUANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
3, 4, *, address=
3 College of Petroleum Engineering, China University of Petroleum (Beijing), Beijing 102299, China
4 Natural Gas Geology and Engineering Research Center, China University of Petroleum (Beijing), Beijing 102299, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1172930839156503351, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, authorId=1172930839039062835, language=CN, stringName=黄文奎, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
3, 4, *, address=
3 中国石油大学(北京)石油工程学院, 北京 102299
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Flow chart of CO2 long core displacement experiment, figureFileSmall=bLoiletSswSIkqybf+jANw==, figureFileBig=XCJg4qgHTAu79RuI45vJ4Q==, tableContent=null), ArticleFig(id=1172930840058278725, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, language=CN, label=图2, caption=
CO2长岩心驱替实验流程图, figureFileSmall=bLoiletSswSIkqybf+jANw==, figureFileBig=XCJg4qgHTAu79RuI45vJ4Q==, tableContent=null), ArticleFig(id=1172930840137970502, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, language=EN, label=Fig.3, caption=
The test results of crude oil composition before and after CO2 flooding under different pressure conditions, figureFileSmall=Fjf5hn7ByQAKz3KfDAAGyQ==, figureFileBig=kK4G6Ge9LeI42NTDq9xv9Q==, tableContent=null), ArticleFig(id=1172930840196690759, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, language=CN, label=图3, caption=
不同压力条件下CO2驱替前后原油组分测试结果, figureFileSmall=Fjf5hn7ByQAKz3KfDAAGyQ==, figureFileBig=kK4G6Ge9LeI42NTDq9xv9Q==, tableContent=null), ArticleFig(id=1172930840255411016, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, language=EN, label=Fig.4, caption=
CO2 displacement characteristic curves under different pressure conditions, figureFileSmall=46Kaf7DLrp+2nFGrzOZlBQ==, figureFileBig=jJZTlRxBNfLnnrMOTF1Jeg==, tableContent=null), ArticleFig(id=1172930840330908489, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, language=CN, label=图4, caption=
不同压力条件下CO2驱替特征曲线, figureFileSmall=46Kaf7DLrp+2nFGrzOZlBQ==, figureFileBig=jJZTlRxBNfLnnrMOTF1Jeg==, tableContent=null), ArticleFig(id=1172930840398017354, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, language=EN, label=Fig.5, caption=
The damage degree of core permeability after CO2 flooding under different pressure conditions, figureFileSmall=eE9WPLNcu1MnOwYN+kyrsw==, figureFileBig=ELfXA4FQMqwiN/0pGzrwGQ==, tableContent=null), ArticleFig(id=1172930840460931915, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, language=CN, label=图5, caption=
不同压力条件下CO2驱替后岩心渗透率损伤程度, figureFileSmall=eE9WPLNcu1MnOwYN+kyrsw==, figureFileBig=ELfXA4FQMqwiN/0pGzrwGQ==, tableContent=null), ArticleFig(id=1172930840528040780, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, language=EN, label=Fig.6, caption=
CO2 immiscible flooding area division diagram, figureFileSmall=1MgB586Dz0Buw25ZpYYmMw==, figureFileBig=zljR96OnL5moCkVnhcOVXw==, tableContent=null), ArticleFig(id=1172930840595149645, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, language=CN, label=图6, caption=
CO2非混相驱油区域划分示意图, figureFileSmall=1MgB586Dz0Buw25ZpYYmMw==, figureFileBig=zljR96OnL5moCkVnhcOVXw==, tableContent=null), ArticleFig(id=1172930840653869902, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, language=EN, label=Table 1, caption=
Core physical parameters and splicing scheme of CO2 flooding experiment
, figureFileSmall=null, figureFileBig=null, tableContent=
实验 压力/MPa | 拼接 顺序 | 长度/ mm | 直径/ mm | 渗透率/ mD | 孔隙度/ % |
| 15 | 1 | 63.65 | 25.16 | 0.993 | 13.68 |
| 2 | 53.47 | 25.08 | 0.617 | 13.05 |
| 3 | 58.98 | 25.09 | 0.967 | 13.37 |
| 4 | 52.05 | 25.14 | 0.948 | 12.29 |
| 5 | 67.90 | 25.11 | 0.920 | 15.54 |
| 汇总 | 296.05 | 25.11 | 0.870 | 13.69 |
| 23 | 1 | 37.40 | 25.15 | 0.682 | 12.21 |
| 2 | 54.53 | 25.14 | 0.989 | 13.11 |
| 3 | 70.39 | 25.05 | 0.962 | 11.27 |
| 4 | 66.38 | 25.04 | 0.776 | 12.81 |
| 5 | 68.61 | 25.07 | 0.931 | 15.38 |
| 汇总 | 297.31 | 25.09 | 0.868 | 13.02 |
| 28 | 1 | 44.23 | 25.09 | 0.964 | 13.68 |
| 2 | 53.93 | 25.08 | 0.739 | 13.52 |
| 3 | 69.20 | 25.02 | 0.952 | 14.56 |
| 4 | 53.47 | 25.07 | 0.763 | 13.11 |
| 5 | 62.25 | 25.00 | 0.929 | 13.08 |
| 汇总 | 283.08 | 25.05 | 0.861 | 13.63 |
), ArticleFig(id=1172930840733561679, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, language=CN, label=表1, caption=
CO2驱替实验岩心物性参数及拼接方案
, figureFileSmall=null, figureFileBig=null, tableContent=
实验 压力/MPa | 拼接 顺序 | 长度/ mm | 直径/ mm | 渗透率/ mD | 孔隙度/ % |
| 15 | 1 | 63.65 | 25.16 | 0.993 | 13.68 |
| 2 | 53.47 | 25.08 | 0.617 | 13.05 |
| 3 | 58.98 | 25.09 | 0.967 | 13.37 |
| 4 | 52.05 | 25.14 | 0.948 | 12.29 |
| 5 | 67.90 | 25.11 | 0.920 | 15.54 |
| 汇总 | 296.05 | 25.11 | 0.870 | 13.69 |
| 23 | 1 | 37.40 | 25.15 | 0.682 | 12.21 |
| 2 | 54.53 | 25.14 | 0.989 | 13.11 |
| 3 | 70.39 | 25.05 | 0.962 | 11.27 |
| 4 | 66.38 | 25.04 | 0.776 | 12.81 |
| 5 | 68.61 | 25.07 | 0.931 | 15.38 |
| 汇总 | 297.31 | 25.09 | 0.868 | 13.02 |
| 28 | 1 | 44.23 | 25.09 | 0.964 | 13.68 |
| 2 | 53.93 | 25.08 | 0.739 | 13.52 |
| 3 | 69.20 | 25.02 | 0.952 | 14.56 |
| 4 | 53.47 | 25.07 | 0.763 | 13.11 |
| 5 | 62.25 | 25.00 | 0.929 | 13.08 |
| 汇总 | 283.08 | 25.05 | 0.861 | 13.63 |
), ArticleFig(id=1172930840825836368, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, language=EN, label=Table 2, caption=
The change of core permeability before and after CO2 flooding under different experimental pressure conditions
, figureFileSmall=null, figureFileBig=null, tableContent=
实验 压力/MPa | 拼接 顺序 | 长度/ mm | 驱替前渗 透率/mD | 驱替后渗 透率/mD | 损伤程度/ % |
| 15 | 1 | 63.65 | 0.993 | 0.920 | 7.351 |
| 2 | 53.47 | 0.617 | 0.579 | 6.159 |
| 3 | 58.98 | 0.967 | 0.886 | 8.376 |
| 4 | 52.05 | 0.948 | 0.886 | 6.540 |
| 5 | 67.90 | 0.920 | 0.883 | 4.022 |
| 汇总 | 296.05 | 0.870 | 0.816 | 6.180 |
| 23 | 1 | 37.40 | 0.682 | 0.627 | 8.065 |
| 2 | 54.53 | 0.989 | 0.892 | 9.808 |
| 3 | 70.39 | 0.962 | 0.860 | 10.603 |
| 4 | 66.38 | 0.776 | 0.670 | 13.660 |
| 5 | 68.61 | 0.931 | 0.800 | 14.071 |
| 汇总 | 297.31 | 0.868 | 0.755 | 13.028 |
| 28 | 1 | 44.23 | 0.964 | 0.877 | 9.025 |
| 2 | 53.93 | 0.739 | 0.674 | 8.796 |
| 3 | 69.20 | 0.952 | 0.835 | 12.290 |
| 4 | 53.47 | 0.763 | 0.633 | 17.038 |
| 5 | 62.25 | 0.929 | 0.763 | 16.792 |
| 汇总 | 283.08 | 0.861 | 0.752 | 12.466 |
), ArticleFig(id=1172930840901333841, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, language=CN, label=表2, caption=
不同实验压力条件下CO2驱替前后岩心渗透率变化
, figureFileSmall=null, figureFileBig=null, tableContent=
实验 压力/MPa | 拼接 顺序 | 长度/ mm | 驱替前渗 透率/mD | 驱替后渗 透率/mD | 损伤程度/ % |
| 15 | 1 | 63.65 | 0.993 | 0.920 | 7.351 |
| 2 | 53.47 | 0.617 | 0.579 | 6.159 |
| 3 | 58.98 | 0.967 | 0.886 | 8.376 |
| 4 | 52.05 | 0.948 | 0.886 | 6.540 |
| 5 | 67.90 | 0.920 | 0.883 | 4.022 |
| 汇总 | 296.05 | 0.870 | 0.816 | 6.180 |
| 23 | 1 | 37.40 | 0.682 | 0.627 | 8.065 |
| 2 | 54.53 | 0.989 | 0.892 | 9.808 |
| 3 | 70.39 | 0.962 | 0.860 | 10.603 |
| 4 | 66.38 | 0.776 | 0.670 | 13.660 |
| 5 | 68.61 | 0.931 | 0.800 | 14.071 |
| 汇总 | 297.31 | 0.868 | 0.755 | 13.028 |
| 28 | 1 | 44.23 | 0.964 | 0.877 | 9.025 |
| 2 | 53.93 | 0.739 | 0.674 | 8.796 |
| 3 | 69.20 | 0.952 | 0.835 | 12.290 |
| 4 | 53.47 | 0.763 | 0.633 | 17.038 |
| 5 | 62.25 | 0.929 | 0.763 | 16.792 |
| 汇总 | 283.08 | 0.861 | 0.752 | 12.466 |
), ArticleFig(id=1172930840981025618, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, language=EN, label=Table 3, caption=
Changes of reservoir heterogeneity parameters before and after CO2 flooding under different pressure conditions
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 实验压力/MPa |
| 15 | 23 | 28 |
| 实验前 | 变异系数 | 0.155 | 0.137 | 0.112 |
| 突进系数 | 1.117 | 1.139 | 1.109 |
| 极差 | 1.610 | 1.450 | 1.300 |
| 实验后 | 变异系数 | 0.152 | 0.135 | 0.122 |
| 突进系数 | 1.107 | 1.159 | 1.159 |
| 极差 | 1.590 | 1.420 | 1.390 |
| 变化幅度 | 变异系数 | -1.864 | -1.017 | 8.912 |
| 突进系数 | -0.861 | 1.698 | 4.566 |
| 极差 | -1.271 | -1.896 | 6.209 |
), ArticleFig(id=1172930841085883219, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768940936671283, language=CN, label=表3, caption=
不同压力条件下CO2驱替前后储层非均质性参数变化
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 实验压力/MPa |
| 15 | 23 | 28 |
| 实验前 | 变异系数 | 0.155 | 0.137 | 0.112 |
| 突进系数 | 1.117 | 1.139 | 1.109 |
| 极差 | 1.610 | 1.450 | 1.300 |
| 实验后 | 变异系数 | 0.152 | 0.135 | 0.122 |
| 突进系数 | 1.107 | 1.159 | 1.159 |
| 极差 | 1.590 | 1.420 | 1.390 |
| 变化幅度 | 变异系数 | -1.864 | -1.017 | 8.912 |
| 突进系数 | -0.861 | 1.698 | 4.566 |
| 极差 | -1.271 | -1.896 | 6.209 |
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