Article(id=1322941998918934979, tenantId=1146029695717560320, journalId=1322258508890079423, issueId=1322941491332657306, articleNumber=null, orderNo=null, doi=10.13809/j.cnki.cn32-1825/te.2025094, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1740326400000, receivedDateStr=2025-02-24, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793343551615, onlineDateStr=2026-10-30, pubDate=1795622400000, pubDateStr=2026-11-26, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793343551615, onlineIssueDateStr=2026-10-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793343551615, creator=13701087609, updateTime=1793343551615, updator=13701087609, issue=Issue{id=1322941491332657306, tenantId=1146029695717560320, journalId=1322258508890079423, year='2026', volume='16', issue='6', pageStart='1137', pageEnd='1368', issueExtLink='null', onlineDate='null', pubDate='1795622400000', pubDateStr='2026-11-26', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1793343430598, creator='13701087609', updateTime=1793344116766, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322944369447285513, tenantId=1146029695717560320, journalId=1322258508890079423, issueId=1322941491332657306, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322944369447285514, tenantId=1146029695717560320, journalId=1322258508890079423, issueId=1322941491332657306, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1358, endPage=1368, ext={EN=ArticleExt(id=1322941999158010308, articleId=1322941998918934979, tenantId=1146029695717560320, journalId=1322258508890079423, language=EN, title=Research on retention characteristics of polymer fracturing fluids in shale oil reservoirs, columnId=1322941621217657699, journalTitle=Petroleum Reservoir Evaluation and Development, columnName=Engineering Techniques, runingTitle=null, highlight=
In the development of shale oil, polymer fracturing fluid is one of the key technologies for increasing oil and gas production. However, the molecular weight of the polymer significantly affects its fracturing effectiveness. Excessively high molecular weight may exacerbate polymer retention and aggregation within the reservoir, while overly low molecular weight may result in insufficient fracturing effects. To address this issue, this study aims to investigate the influence of polymer molecular weight and concentration on the retention and aggregation behavior of fracturing fluids in shale oil reservoirs, with the goal of optimizing fracturing fluid formulations, minimizing reservoir damage, and improving fracturing efficiency. Through experimental research and technical analysis, polymer solutions with different molecular weights and concentrations were selected for displacement experiments on shale cores. Micro-CT scanners and scanning electron microscopy (SEM) were employed to observe and compare the cores before and after displacement, analyzing the retention and migration characteristics of polymers within the cores. The results showed that when the polymer molecular weight was below 1 754 × 104 and the concentration was below 2 g/L—as in experiments 1 and 3, where the concentration was 1 g/L—the retention effect was relatively weak. This was manifested as a porosity loss of less than 8.9%, a permeability reduction of less than 15%, and a retention index below 0.35. When the molecular weight exceeded 1 754 × 104 and the concentration was relatively high, the retention effect was significantly enhanced, with a retention index exceeding 0.70, especially prone to accumulation near fracture entrances, affecting oil and gas flow. Additionally, the study found that polymer retention in cores was jointly affected by molecular weight and concentration, with molecular weight being the main factor. By determining an appropriate range of polymer molecular weight, this study provides a scientific basis for reducing retention and aggregation of fracturing fluids in reservoirs, thereby mitigating reservoir damage and enhancing fracturing performance. The findings offer a scientific foundation for optimizing fracturing fluid formulations in shale oil development and serve as a useful reference for technological improvements in related fields.
, articleAbstract=null, authors=YUHANG REN1, ZHENGBIN WU1, WENBO YANG2, KUN SHU3, SHU JIANG1, authorsList=YUHANG REN, ZHENGBIN WU, WENBO YANG, KUN SHU, SHU JIANG, authorCompany=null, correspAuthors=ZHENGBIN WU, 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=1322942003834659300, articleId=1322941998918934979, tenantId=1146029695717560320, journalId=1322258508890079423, language=CN, title=聚合物压裂液在页岩油储层的滞留特征研究, columnId=1322941621964243813, journalTitle=油气藏评价与开发, columnName=工程工艺, runingTitle=null, highlight=
在页岩油开发过程中,聚合物压裂液是提高油气产量的关键技术之一。然而,聚合物分子量对其压裂效果具有显著影响。聚合物分子量过高可能导致其在储层中的滞留与聚集现象加剧,而分子量过低则可能削弱压裂效果。为了解决这个问题,该研究旨在探索聚合物分子量和质量浓度对页岩油储层中压裂液滞留和聚集行为的影响,以优化压裂液配方,减少对储层的伤害,提高压裂增产效果。通过实验研究和技术分析,选取不同分子量和质量浓度的聚合物溶液,对页岩岩心进行驱替实验。利用微米CT扫描和扫描电子显微镜(SEM)技术,对驱替前后的岩心进行观察和对比,分析聚合物在岩心中的滞留和运移特征。实验结果表明:当聚合物分子量低于1 754×104且质量浓度低于2 g/L,滞留效应较弱,表现为孔隙度损失低于8.9%,渗透率下降幅度小于15%,滞留指数低于0.35;而分子量超过1 754×104、质量浓度较高时,滞留效应显著增强,滞留指数可达0.70以上,尤其在裂缝入口附近容易堆积,影响油气流动。研究还发现,聚合物在岩心中的滞留行为受分子量和质量浓度的共同影响,其中分子量是主要影响因素。通过确定适宜的聚合物分子量范围,为减少压裂液在储层中的滞留和聚集提供了科学依据,有助于降低对储层的伤害,提高压裂增产效果。研究成果为优化页岩油压裂液配方提供了科学依据,并对相关领域的技术改进具有一定的参考价值。
, articleAbstract=null, authors=任宇航1, 吴正彬1, 杨文博2, 舒坤3, 蒋恕1, authorsList=任宇航, 吴正彬, 杨文博, 舒坤, 蒋恕, authorCompany=null, correspAuthors=吴正彬, authorNote=
任宇航(1999—),男,在读硕士研究生,从事油气藏提高采收率方面的研究。地址:湖北省武汉市鲁磨路388号中国地质大学(武汉),邮政编码:430074。E-mail:15753096297@163.com
, correspAuthorsNote=
吴正彬(1991—),男,博士,副教授,从事复杂油气藏油气渗流理论及提高采收率技术工作。地址:湖北省武汉市鲁磨路388号中国地质大学(武汉),邮政编码:430074。E-mail:
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1 Hubei Key Laboratory of Oil and Gas Exploration and Development Theory and Technology, China University of Geosciences (Wuhan), Wuhan, Hubei 430074, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322942004480582131, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, authorId=1322942004337975791, language=CN, stringName=任宇航, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, address=
1 中国地质大学(武汉)油气勘探开发理论与技术湖北省重点实验室,湖北 武汉 430074, bio={"content":"
任宇航(1999—),男,在读硕士研究生,从事油气藏提高采收率方面的研究。地址:湖北省武汉市鲁磨路388号中国地质大学(武汉),邮政编码:430074。E-mail:15753096297@163.com
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任宇航(1999—),男,在读硕士研究生,从事油气藏提高采收率方面的研究。地址:湖北省武汉市鲁磨路388号中国地质大学(武汉),邮政编码:430074。E-mail:15753096297@163.com
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1 Hubei Key Laboratory of Oil and Gas Exploration and Development Theory and Technology, China University of Geosciences (Wuhan), Wuhan, Hubei 430074, China), AuthorCompanyExt(id=1322942004090511847, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, companyId=1322942004073734629, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 中国地质大学(武汉)油气勘探开发理论与技术湖北省重点实验室,湖北 武汉 430074)])]), Author(id=1322942004551885301, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, 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=1, authorType=1, ext={EN=AuthorExt(id=1322942004623188471, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, authorId=1322942004551885301, language=EN, stringName=ZHENGBIN WU, firstName=ZHENGBIN, middleName=null, lastName=WU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, address=
1 Hubei Key Laboratory of Oil and Gas Exploration and Development Theory and Technology, China University of Geosciences (Wuhan), Wuhan, Hubei 430074, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322942004694491640, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, authorId=1322942004551885301, language=CN, stringName=吴正彬, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, address=
1 中国地质大学(武汉)油气勘探开发理论与技术湖北省重点实验室,湖北 武汉 430074, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322942004073734629, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, xref=1, ext=[AuthorCompanyExt(id=1322942004082123238, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, companyId=1322942004073734629, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 Hubei Key Laboratory of Oil and Gas Exploration and Development Theory and Technology, China University of Geosciences (Wuhan), Wuhan, Hubei 430074, China), AuthorCompanyExt(id=1322942004090511847, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, companyId=1322942004073734629, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 中国地质大学(武汉)油气勘探开发理论与技术湖北省重点实验室,湖北 武汉 430074)])]), Author(id=1322942005944394234, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, 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=1322942006053446140, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, authorId=1322942005944394234, language=EN, stringName=WENBO YANG, firstName=WENBO, middleName=null, lastName=YANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=2, address=
2 Lukeqin Oil Production Plant, Tuha Oilfield Company, PetroChina, Shanshan, Xinjiang 838202, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322942006128943613, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, authorId=1322942005944394234, language=CN, stringName=杨文博, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=2, address=
2 中国石油吐哈油田分公司鲁克沁采油厂,新疆 哈密 838202, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322942004170203624, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, xref=2, ext=[AuthorCompanyExt(id=1322942004178592233, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, companyId=1322942004170203624, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 Lukeqin Oil Production Plant, Tuha Oilfield Company, PetroChina, Shanshan, Xinjiang 838202, China), AuthorCompanyExt(id=1322942004191175146, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, companyId=1322942004170203624, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 中国石油吐哈油田分公司鲁克沁采油厂,新疆 哈密 838202)])]), Author(id=1322942006212829695, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, 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=1322942006309298689, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, authorId=1322942006212829695, language=EN, stringName=KUN SHU, firstName=KUN, middleName=null, lastName=SHU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=3, address=
3 Research Institute of Exploration & Development, PetroChina Tuha Oilfield Company, Hami, Xinjiang 839009, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322942006388990466, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, authorId=1322942006212829695, language=CN, stringName=舒坤, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=3, address=
3 中国石油吐哈油田分公司勘探开发研究院,新疆 哈密 839009, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322942004262478315, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, xref=3, ext=[AuthorCompanyExt(id=1322942004270866924, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, companyId=1322942004262478315, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3 Research Institute of Exploration & Development, PetroChina Tuha Oilfield Company, Hami, Xinjiang 839009, China), AuthorCompanyExt(id=1322942004275061229, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, companyId=1322942004262478315, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1 Hubei Key Laboratory of Oil and Gas Exploration and Development Theory and Technology, China University of Geosciences (Wuhan), Wuhan, Hubei 430074, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322942006623871495, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, authorId=1322942006451905028, language=CN, stringName=蒋恕, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, address=
1 中国地质大学(武汉)油气勘探开发理论与技术湖北省重点实验室,湖北 武汉 430074, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322942004073734629, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, xref=1, ext=[AuthorCompanyExt(id=1322942004082123238, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, companyId=1322942004073734629, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1 Hubei Key Laboratory of Oil and Gas Exploration and Development Theory and Technology, China University of Geosciences (Wuhan), Wuhan, Hubei 430074, China), AuthorCompanyExt(id=1322942004090511847, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, companyId=1322942004073734629, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 中国地质大学(武汉)油气勘探开发理论与技术湖北省重点实验室,湖北 武汉 430074)]), AuthorCompany(id=1322942004170203624, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, xref=2, ext=[AuthorCompanyExt(id=1322942004178592233, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, companyId=1322942004170203624, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 Lukeqin Oil Production Plant, Tuha Oilfield Company, PetroChina, Shanshan, Xinjiang 838202, China), AuthorCompanyExt(id=1322942004191175146, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, companyId=1322942004170203624, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 中国石油吐哈油田分公司鲁克沁采油厂,新疆 哈密 838202)]), AuthorCompany(id=1322942004262478315, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, xref=3, ext=[AuthorCompanyExt(id=1322942004270866924, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, companyId=1322942004262478315, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3 Research Institute of Exploration & Development, PetroChina Tuha Oilfield Company, Hami, Xinjiang 839009, China), AuthorCompanyExt(id=1322942004275061229, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, companyId=1322942004262478315, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3 中国石油吐哈油田分公司勘探开发研究院,新疆 哈密 839009)])], figs=[ArticleFig(id=1322942007961854489, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, language=EN, label=Fig.1, caption=
CT scan of original rock samples, figureFileSmall=JoHXCNDCmfQyE7JgHimF4g==, figureFileBig=qGANtIwfUyATcIAM5kqyAg==, tableContent=null), ArticleFig(id=1322942008041546266, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, language=CN, label=图1, caption=
原始岩样CT扫描注:图像经Avizo重构;黑色区域为孔隙;灰色区域为矿物基质;蓝色区域为二值化后标识的孔隙;亮色区域为三维渲染后的孔隙团簇;样品取自胜利油田东辛区块。
, figureFileSmall=JoHXCNDCmfQyE7JgHimF4g==, figureFileBig=qGANtIwfUyATcIAM5kqyAg==, tableContent=null), ArticleFig(id=1322942008234484252, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, language=EN, label=Fig.2, caption=
CT scan of pore changes after displacement with medium-low thickener system, figureFileSmall=LUP5fW2+7YEnOWLuEMGa+Q==, figureFileBig=nV+tDuhOPw0Cnv8niuF20A==, tableContent=null), ArticleFig(id=1322942008301593117, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, language=CN, label=图2, caption=
中低增稠剂体系驱替后孔隙变化CT扫描注:图像经Avizo重构;黑色区域为孔隙;灰色区域为矿物基质;蓝色区域为二值化后标识的孔隙;亮色区域为三维渲染后的孔隙团簇;样品取自胜利油田东辛区块。
, figureFileSmall=LUP5fW2+7YEnOWLuEMGa+Q==, figureFileBig=nV+tDuhOPw0Cnv8niuF20A==, tableContent=null), ArticleFig(id=1322942008381284894, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, language=EN, label=Fig.3, caption=
CT scan of pore blockage at inlet with high thickener system, figureFileSmall=LG0JVz6QUNixsVC4/JTraQ==, figureFileBig=Z5YKu+ZdDuhbNLpkmeacQA==, tableContent=null), ArticleFig(id=1322942008460976671, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, language=CN, label=图3, caption=
高增稠剂体系注入端孔隙堵塞CT扫描注:图像经Avizo重构;黑色区域为孔隙;灰色区域为矿物基质;蓝色区域为二值化后标识的孔隙;亮色区域为三维渲染后的孔隙团簇;样品取自胜利油田东辛区块。
, figureFileSmall=LG0JVz6QUNixsVC4/JTraQ==, figureFileBig=Z5YKu+ZdDuhbNLpkmeacQA==, tableContent=null), ArticleFig(id=1322942008528085536, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, language=EN, label=Fig.4, caption=
CT scan of residual pores at outlet with high thickener system, figureFileSmall=ArPpHTN+7stwJWRrE/9W5g==, figureFileBig=wak5x3A+0+6pJLpSgmlXRw==, tableContent=null), ArticleFig(id=1322942008603583009, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, language=CN, label=图4, caption=
高增稠剂体系出口端残余孔隙CT扫描注:图像经Avizo重构;黑色区域为孔隙;灰色区域为矿物基质;蓝色区域为二值化后标识的孔隙;亮色区域为三维渲染后的孔隙团簇;样品取自胜利油田东辛区块。
, figureFileSmall=ArPpHTN+7stwJWRrE/9W5g==, figureFileBig=wak5x3A+0+6pJLpSgmlXRw==, tableContent=null), ArticleFig(id=1322942008658108962, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, language=EN, label=Fig.5, caption=
CT scan of pore constriction at inlet with medium-high thickener system, figureFileSmall=m5iH+lcvisySR7CTjEXcoA==, figureFileBig=N7bJkQ9r/N+nerY/N1+j9Q==, tableContent=null), ArticleFig(id=1322942008721023523, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, language=CN, label=图5, caption=
中高增稠剂体系入口孔隙受限CT扫描注:图像经Avizo重构;黑色区域为孔隙;灰色区域为矿物基质;蓝色区域为二值化后标识的孔隙;亮色区域为三维渲染后的孔隙团簇;样品取自胜利油田东辛区块。
, figureFileSmall=m5iH+lcvisySR7CTjEXcoA==, figureFileBig=N7bJkQ9r/N+nerY/N1+j9Q==, tableContent=null), ArticleFig(id=1322942008792326692, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, language=EN, label=Fig.6, caption=
CT scan of distal pores with medium-high thickener system, figureFileSmall=oYHkfMXjjaHRqri0uqV8lg==, figureFileBig=objlVt+WqnLJsDJb2VEELQ==, tableContent=null), ArticleFig(id=1322942008909767205, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, language=CN, label=图6, caption=
中高增稠剂体系远端孔隙CT扫描注:图像经Avizo重构;黑色区域为孔隙;灰色区域为矿物基质;蓝色区域为二值化后标识的孔隙;亮色区域为三维渲染后的孔隙团簇;样品取自胜利油田东辛区块。
, figureFileSmall=oYHkfMXjjaHRqri0uqV8lg==, figureFileBig=objlVt+WqnLJsDJb2VEELQ==, tableContent=null), ArticleFig(id=1322942008976876070, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, language=EN, label=Fig.7, caption=
CT scan of pore distribution after displacement with low thickener system, figureFileSmall=/zrwn57Q2XOy6lWfUHJ7Ng==, figureFileBig=buqAB+vBo7eoN3szf7xnew==, tableContent=null), ArticleFig(id=1322942009039790631, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, language=CN, label=图7, caption=
低增稠剂体系驱替后孔隙分布CT扫描注:图像经Avizo重构;黑色区域为孔隙;灰色区域为矿物基质;蓝色区域为二值化后标识的孔隙;亮色区域为三维渲染后的孔隙团簇;样品取自胜利油田东辛区块。
, figureFileSmall=/zrwn57Q2XOy6lWfUHJ7Ng==, figureFileBig=buqAB+vBo7eoN3szf7xnew==, tableContent=null), ArticleFig(id=1322942009102705192, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, language=EN, label=Fig.8, caption=
SEM-EDS images, figureFileSmall=Swk0BLxJ89uPZmv1UNkoiQ==, figureFileBig=4gL1D16bXVitmeDnmxBVJA==, tableContent=null), ArticleFig(id=1322942009190785577, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, language=CN, label=图8, caption=
扫描电镜能谱图注:1 eV=1.602 176 634×10-19 J;红圈内为聚合物位置。
, figureFileSmall=Swk0BLxJ89uPZmv1UNkoiQ==, figureFileBig=4gL1D16bXVitmeDnmxBVJA==, tableContent=null), ArticleFig(id=1322942009283060266, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, language=EN, label=Fig.9, caption=
Scanning electron microscopy of original rock samples, figureFileSmall=jYi6x+7Bj5Y7CA9+qMK9MA==, figureFileBig=hPaZMaDBcalz+SyNCl5htg==, tableContent=null), ArticleFig(id=1322942009366946347, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, language=CN, label=图9, caption=
原始岩样扫描电镜注:红圈内为聚合物位置。
, figureFileSmall=jYi6x+7Bj5Y7CA9+qMK9MA==, figureFileBig=hPaZMaDBcalz+SyNCl5htg==, tableContent=null), ArticleFig(id=1322942009425666604, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, language=EN, label=Fig.10, caption=
Microscopic retention morphology of core with medium-low thickener system, figureFileSmall=rirsNPYLdR9EyYR6fq0n4w==, figureFileBig=Z23/vJbc3dR2kPil7ygnAQ==, tableContent=null), ArticleFig(id=1322942009484386861, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, language=CN, label=图10, caption=
中低增稠剂体系岩心微观滞留形貌注:红圈内为聚合物位置。
, figureFileSmall=rirsNPYLdR9EyYR6fq0n4w==, figureFileBig=Z23/vJbc3dR2kPil7ygnAQ==, tableContent=null), ArticleFig(id=1322942009551495726, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, language=EN, label=Fig.11, caption=
Polymer aggregate morphology at high thickener system, figureFileSmall=F591+70hbsooZdsRHDQqwA==, figureFileBig=wwT6M/Q+Xas/I5/o/JmDTw==, tableContent=null), ArticleFig(id=1322942009614410287, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, language=CN, label=图11, caption=
高增稠剂体系聚合物聚集形貌注:红圈内为聚合物位置。
, figureFileSmall=F591+70hbsooZdsRHDQqwA==, figureFileBig=wwT6M/Q+Xas/I5/o/JmDTw==, tableContent=null), ArticleFig(id=1322942009908011568, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, language=EN, label=Fig.12, caption=
Polymer blockage morphology at medium-high thickener system, figureFileSmall=mBCvYDy/NiVQOmjs6SFuaw==, figureFileBig=lTydLSiEpuYcOIXfAFWRBw==, tableContent=null), ArticleFig(id=1322942010398745137, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, language=CN, label=图12, caption=
中高增稠剂体系聚合物堵塞形貌注:红圈内为聚合物位置。
, figureFileSmall=mBCvYDy/NiVQOmjs6SFuaw==, figureFileBig=lTydLSiEpuYcOIXfAFWRBw==, tableContent=null), ArticleFig(id=1322942010474242610, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, language=EN, label=Fig.13, caption=
Uniform retention morphology of core with low thickener system, figureFileSmall=R1FjDiPLOiGBNi700YRURQ==, figureFileBig=bcuMZiDj0DAv6h+unnb5Pg==, tableContent=null), ArticleFig(id=1322942010662986292, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, language=CN, label=图13, caption=
低增稠剂体系岩心均匀滞留形貌注:红圈内为聚合物位置。
, figureFileSmall=R1FjDiPLOiGBNi700YRURQ==, figureFileBig=bcuMZiDj0DAv6h+unnb5Pg==, tableContent=null), ArticleFig(id=1322942010717512245, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, language=EN, label=Table 1, caption=
Quantitative results of retention phenomenon under different experimental conditions, figureFileSmall=null, figureFileBig=null, tableContent=
| 实验序号 | 分子量 | 质量浓度/(g/L) | 黏度/(mPa·s) | 滞留指数 | 实验现象描述 | 孔隙度变化率/% | 渗透率变化率/% |
|---|
| 1 | 1 275×104 | 1 | 3.145 | 0.18 | 滞留效应不明显,分布均匀 | -2.1 | -5.3 |
| 2 | 1 275×104 | 5 | 604.879 | 0.22 | 滞留轻微,均匀分布 | -3.5 | -8.0 |
| 3 | 1 509×104 | 1 | 5.568 | 0.20 | 滞留轻微,孔隙略有减少 | -4.5 | -8.7 |
| 4 | 1 754×104 | 1 | 33.579 | 0.35 | 滞留现象开始显现(临界点) | -8.9 | -15.2 |
| 5 | 1 754×104 | 2 | 100.515 | 0.45 | 滞留增强,入口端堆积 | -12.3 | -22.6 |
| 6 | 1 933×104 | 5 | 551.176 | 0.75 | 显著滞留,注入端孔隙缩小50% | -32.7 | -48.9 |
| 7 | 2 526×104 | 1 | 45.886 | 0.60 | 滞留明显,运移受限 | -18.5 | -29.4 |
| 8 | 2 555×104 | 2 | 298.223 | 0.70 | 高分子量+中质量浓度,滞留率70% | -25.8 | -37.1 |
| 9 | 2 555×104 | 4 | 884.281 | 0.85 | 注入端完全堵塞,出口端极少聚合物 | -45.6 | -63.8 |
| 10 | 2 692×104 | 2 | 262.362 | 0.80 | 高分子量+中质量浓度,滞留率80% | -28.4 | -41.2 |
| 11 | 2 692×104 | 3 | 428.875 | 0.90 | 高分子量+高质量浓度,注入端完全堵塞 | -50.1 | -71.5 |
), ArticleFig(id=1322942010809786934, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941998918934979, language=CN, label=表1, caption=
不同实验条件下滞留现象的量化结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 实验序号 | 分子量 | 质量浓度/(g/L) | 黏度/(mPa·s) | 滞留指数 | 实验现象描述 | 孔隙度变化率/% | 渗透率变化率/% |
|---|
| 1 | 1 275×104 | 1 | 3.145 | 0.18 | 滞留效应不明显,分布均匀 | -2.1 | -5.3 |
| 2 | 1 275×104 | 5 | 604.879 | 0.22 | 滞留轻微,均匀分布 | -3.5 | -8.0 |
| 3 | 1 509×104 | 1 | 5.568 | 0.20 | 滞留轻微,孔隙略有减少 | -4.5 | -8.7 |
| 4 | 1 754×104 | 1 | 33.579 | 0.35 | 滞留现象开始显现(临界点) | -8.9 | -15.2 |
| 5 | 1 754×104 | 2 | 100.515 | 0.45 | 滞留增强,入口端堆积 | -12.3 | -22.6 |
| 6 | 1 933×104 | 5 | 551.176 | 0.75 | 显著滞留,注入端孔隙缩小50% | -32.7 | -48.9 |
| 7 | 2 526×104 | 1 | 45.886 | 0.60 | 滞留明显,运移受限 | -18.5 | -29.4 |
| 8 | 2 555×104 | 2 | 298.223 | 0.70 | 高分子量+中质量浓度,滞留率70% | -25.8 | -37.1 |
| 9 | 2 555×104 | 4 | 884.281 | 0.85 | 注入端完全堵塞,出口端极少聚合物 | -45.6 | -63.8 |
| 10 | 2 692×104 | 2 | 262.362 | 0.80 | 高分子量+中质量浓度,滞留率80% | -28.4 | -41.2 |
| 11 | 2 692×104 | 3 | 428.875 | 0.90 | 高分子量+高质量浓度,注入端完全堵塞 | -50.1 | -71.5 |
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