Article(id=1322941808182960757, tenantId=1146029695717560320, journalId=1322258508890079423, issueId=1322941491332657306, articleNumber=null, orderNo=null, doi=10.13809/j.cnki.cn32-1825/te.2025359, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1757952000000, receivedDateStr=2025-09-16, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793343506140, onlineDateStr=2026-10-30, pubDate=1795622400000, pubDateStr=2026-11-26, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793343506140, onlineIssueDateStr=2026-10-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793343506140, creator=13701087609, updateTime=1793343506140, 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=1272, endPage=1285, ext={EN=ArticleExt(id=1322941809810350710, articleId=1322941808182960757, tenantId=1146029695717560320, journalId=1322258508890079423, language=EN, title=Geological genesis of complex gas-water distribution in deep tight sandstone and new method for fluid identification: a case study of second member of Xujiahe Formation in Western Sichuan Depression, Sichuan Basin, columnId=1322941494130258079, journalTitle=Petroleum Reservoir Evaluation and Development, columnName=Oil and Gas Exploration, runingTitle=null, highlight=
Deep tight sandstones in the second member of the Xujiahe Formation in the Western Sichuan Depression, Sichuan Basin, contain abundant natural gas resources. However, the low reserve discovery rate, low reserve utilization rate, and difficulty in reserve upgrading have long been major challenges for exploration and development in the region. The unclear distribution patterns and genetic mechanisms of gas and water in both horizontal and vertical directions have hindered further understanding of gas reservoirs and research on drilling deployment. This study aims to solve the dilemma of gas reservoir evaluation caused by the complex distribution of gas and water, and effectively promote exploration and development deployment. Based on actual drilling, logging, test data, and analytical data for natural gas and cores, this study analyzed the characteristics of natural gas enrichment and production under different combinations of geological elements at macroscopic and microscopic scales, in horizontal and vertical dimensions, and from the perspectives of original gas reservoir states and actual drilling conditions. The differences in gas and water occurrence and electrical response in intervals with different degrees of fracture development were clarified, and the principles and methods for identifying gas and water in tight fractured reservoirs under wellbore conditions were summarized. The results showed that: (1) macroscopically, the spatiotemporal coupling of the hydrocarbon source-reservoir-carrier bed controlled the vertical and horizontal distribution of gas and water, with the scale and formation stages of faults being key factors affecting gas and water distribution. (2) At the microscopic level, small-scale fractures and microfractures controlled the charging behavior of natural gas. High-maturity gas was difficult to migrate over long vertical and horizontal distances in matrix reservoirs. Fracture-developed intervals had significantly higher gas saturation and natural gas maturity than adjacent matrix intervals. (3) Under actual drilling conditions, the deep invasion of mud filtrate significantly reduced the resistivity distinguishability between gas-bearing and water-bearing layers in the fracture-developed intervals, which were ideal target areas for gas-bearing identification. The methane-to-ethane ratio φ(C1)/φ(C2), a key gas logging parameter, was used to characterize the rhythmic variation characteristics of natural gas maturity in intervals with different degrees of fracture development, effectively improving the gas-water identification ability of tight reservoirs. (4) The results of single-well gas-water identification showed that in early fault-controlled reservoir areas, the height of gas columns was usually less than 100 m, and the planar distribution radius of fault-fracture carrier beds was small. In contrast, in late fault-controlled reservoir areas, the height of gas columns and the planar distribution radius of fault-fracture carrier beds were usually larger and related to the size of the fault. Under the guidance of the fluid identification methods and gas-water distribution patterns mentioned above, drilling deployment was carried out, and general principles for designing drilling trajectories and selecting test layers for target layers were established. Multiple new drilling wells achieved favorable oil and gas results, which strongly supported the high-quality exploration and development of deep tight sandstone in the second member of the Xujiahe Formation in the Western Sichuan Depression, Sichuan Basin.
, articleAbstract=null, authors=DI WANG, YINGTAO YANG, LING ZHANG, YONGJIAN YANG, SEN MA, HONGLI NAN, authorsList=DI WANG, YINGTAO YANG, LING ZHANG, YONGJIAN YANG, SEN MA, HONGLI NAN, 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=1322941815330054798, articleId=1322941808182960757, tenantId=1146029695717560320, journalId=1322258508890079423, language=CN, title=深层致密砂岩复杂气水分布地质成因及流体识别新方法, columnId=1322941494327390371, journalTitle=油气藏评价与开发, columnName=油气勘探, runingTitle=null, highlight=
四川盆地川西坳陷须家河组二段(以下简称须二段)深层致密砂岩天然气资源丰富,但储量探明率低、动用率低、升级难度大一直是困扰该区域勘探与开发的难题,气水在平面及纵向上分布规律和成因不明确,制约了气藏认识、钻井部署研究的进一步深入。为了破解复杂气水分布导致的气藏评价困局,有效推进勘探开发部署,以实际钻井、测井、测试资料以及天然气、岩心分析化验资料为基础,从宏观和微观两种尺度、平面和纵向两种维度、气藏原始状态和实际钻井条件两种视角,分析了不同地质要素组合下的天然气富集与产出特征,梳理了不同裂缝发育程度深度段的气水赋存差异及电性响应,总结得到了井眼条件下致密含裂缝储层的气水识别原则与方法。研究表明:①宏观上,烃源-储层-输导体系的时空耦合控制了纵向和平面上的气水分布,其中断层的规模及形成期次是影响气水分布的关键因素;②微观上,小尺度裂缝及微裂缝控制了天然气的充注行为,高熟气在基质储层中难以实现纵向上及平面上的长距离运移,裂缝发育深度段比邻近的基质段具有明显更高的含气饱和度和天然气成熟度;③实际钻井条件下,泥浆滤液的深度侵入显著降低了作为含气性识别理想靶区的裂缝发育深度段的气、水层电阻率辨识度,采用气测录井关键参数甲烷与乙烷体积分数比值φ(C1)/φ(C2)来表征不同裂缝发育程度段的天然气成熟度韵律变化特征,有效提升了致密储层的气水识别能力;④单井气水识别结果显示,早期断层控藏区气柱高度通常小于100 m,且断缝输导体平面展布半径较小,而晚期断层控藏区气柱高度及断缝输导体平面展布半径通常较大,且与断层规模相关。在上述流体识别方法及气水分布规律指导下进行钻井部署,建立了目的层钻井轨迹设计及测试选层的原则,多口新钻井取得了良好的油气成果,有力支撑了川西坳陷须二段深层致密砂岩的高质量勘探与开发。
, articleAbstract=null, authors=王迪, 杨映涛, 张玲, 杨永剑, 马森, 南红丽, authorsList=王迪, 杨映涛, 张玲, 杨永剑, 马森, 南红丽, authorCompany=null, correspAuthors=null, authorNote=
王迪(1989—),男,硕士,副研究员,从事岩石物理与测井评价工作。地址:四川省成都市高新区吉泰路688号,邮政编码:610041。E-mail:294593539@qq.com
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王迪(1989—),男,硕士,副研究员,从事岩石物理与测井评价工作。地址:四川省成都市高新区吉泰路688号,邮政编码:610041。E-mail:294593539@qq.com
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王迪(1989—),男,硕士,副研究员,从事岩石物理与测井评价工作。地址:四川省成都市高新区吉泰路688号,邮政编码:610041。E-mail:294593539@qq.com
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Well Logging Technology,
2021,
45(5): 534-539., articleTitle=A new method of oil and gas layers recognition based on gas measurement ratio factors, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1322941816152138385, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, xref=null, ext=[AuthorCompanyExt(id=1322941816160526994, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, companyId=1322941816152138385, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=Exploration and Development Research Institute, Sinopec Southwest Oil and Gas Company, Chengdu, Sichuan 610041, China), AuthorCompanyExt(id=1322941816173109907, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, companyId=1322941816152138385, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=中国石化西南油气分公司勘探开发研究院,四川 成都 610041)])], figs=[ArticleFig(id=1322941823051768516, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=EN, label=Fig.1, caption=
Distribution of structural units in Western Sichuan Depression, Sichuan Basin (modified from reference [5]), figureFileSmall=Sr9KiOtGFlo25pdnVfTOZA==, figureFileBig=S3EUdSC73TeU6DI1ErvKQg==, tableContent=null), ArticleFig(id=1322941823148237509, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=CN, label=图1, caption=
四川盆地川西坳陷构造单元分布(据文献[5]修改), figureFileSmall=Sr9KiOtGFlo25pdnVfTOZA==, figureFileBig=S3EUdSC73TeU6DI1ErvKQg==, tableContent=null), ArticleFig(id=1322941823366341318, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=EN, label=Fig.2, caption=
Gas-water distribution patterns under different geological conditions, figureFileSmall=5ij3010mGJxH8C4iOq2ikw==, figureFileBig=KKf6tS8opaHMOMwgiojzfA==, tableContent=null), ArticleFig(id=1322941823592833735, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=CN, label=图2, caption=
不同地质要素条件下的气水分布模式, figureFileSmall=5ij3010mGJxH8C4iOq2ikw==, figureFileBig=KKf6tS8opaHMOMwgiojzfA==, tableContent=null), ArticleFig(id=1322941823668331208, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=EN, label=Fig.3, caption=
Relationship between distance from faults,gas well productivity,and φ(C1)/φ(C2) ratio in the second member of Xujiahe Formation of Western Sichuan Depression,Sichuan Basin, figureFileSmall=TBpz24mkN3uMDzCgsrDwPw==, figureFileBig=LgEh1LtDCTbeOROelKH3aw==, tableContent=null), ArticleFig(id=1322941823739634377, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=CN, label=图3, caption=
四川盆地川西坳陷须二段距离断层远近、气井产能与φ(C1)/φ(C2)关系, figureFileSmall=TBpz24mkN3uMDzCgsrDwPw==, figureFileBig=LgEh1LtDCTbeOROelKH3aw==, tableContent=null), ArticleFig(id=1322941823831909066, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=EN, label=Fig.4, caption=
Development characteristics of microfractures in reservoirs of the second member of Xujiahe Formation of Western Sichuan Depression,Sichuan Basin, figureFileSmall=QuHqWxiYD1zWMced6ErgyA==, figureFileBig=v1Aad3MbT8wUi5W0uIWtKQ==, tableContent=null), ArticleFig(id=1322941824075178699, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=CN, label=图4, caption=
四川盆地川西坳陷须二段储层微裂缝发育特征注:a为W05井,深度5 070.7 m,极细、延伸较短的成岩作用微裂缝;b为S04HF井,深度4 608.2 m,构造成因微裂缝;c为W05井,深度5 070.9 m,构造成因微裂缝;d为Y2井,深度5 400.3 m,构造成因微裂缝。
, figureFileSmall=QuHqWxiYD1zWMced6ErgyA==, figureFileBig=v1Aad3MbT8wUi5W0uIWtKQ==, tableContent=null), ArticleFig(id=1322941824171647692, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=EN, label=Fig.5, caption=
Relationship between core permeability,number of microfractures,and gas saturation of sealed cores in three wells of the second member of Xujiahe Formation of Western Sichuan Depression,Sichuan Basin, figureFileSmall=SZwk+iBqgvMFldRpBnko6A==, figureFileBig=mviJwP9Zfh/qJ4mH/8ZJHw==, tableContent=null), ArticleFig(id=1322941824301671117, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=CN, label=图5, caption=
四川盆地川西坳陷须二段3口井岩心渗透率、微裂缝条数、密闭取心含气饱和度之间关系, figureFileSmall=SZwk+iBqgvMFldRpBnko6A==, figureFileBig=mviJwP9Zfh/qJ4mH/8ZJHw==, tableContent=null), ArticleFig(id=1322941824435888846, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=EN, label=Fig.6, caption=
Characteristics of gas-water occurrence in fracture-developed and fracture-underdeveloped intervals and resistivity logging response patterns in the second member of Xujiahe Formation of Western Sichuan Depression, Sichuan Basin, figureFileSmall=L2o4GQQVMOShdZWmCQOs6w==, figureFileBig=fi79N0rOrhxp58ojRtWy1w==, tableContent=null), ArticleFig(id=1322941824565912271, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=CN, label=图6, caption=
四川盆地川西坳陷须二段裂缝发育、欠发育深度段气水赋存特征及电阻率测井响应模式注:a为储层原始状态下,气藏相对高部位,裂缝中以高熟气充注为主,理论电阻率呈极大值;b为储层原始状态下,气藏相对低部位,裂缝中以地层水充注为主,理论电阻率呈极小值;c为过平衡水基泥浆钻井条件下,气藏相对高部位,裂缝中以高熟气充注为主,但近井带泥浆滤液沿裂缝深侵入,实测电阻率呈极小值;d为过平衡水基泥浆钻井条件下,气藏相对较低部位,裂缝中以地层水充注为主,且近井带泥浆滤液沿裂缝深侵入,实测电阻率呈极小值。
, figureFileSmall=L2o4GQQVMOShdZWmCQOs6w==, figureFileBig=fi79N0rOrhxp58ojRtWy1w==, tableContent=null), ArticleFig(id=1322941824662381264, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=EN, label=Fig.7, caption=
Relationship between resistivity of fracture-developed intervals,amplitude of reduction of resistivity,and effective fracture linear density under different gas-bearing conditions in the second member of Xujiahe Formation of Western Sichuan Depression,Sichuan Basin, figureFileSmall=hviEuzlR/r+3jCFJm/SNKA==, figureFileBig=qcdzMrOstucTdFMKuAr3qw==, tableContent=null), ArticleFig(id=1322941824825959121, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=CN, label=图7, caption=
四川盆地川西坳陷须二段不同含气性条件下裂缝发育段电阻率、电阻率降低幅度与有效缝线密度关系, figureFileSmall=hviEuzlR/r+3jCFJm/SNKA==, figureFileBig=qcdzMrOstucTdFMKuAr3qw==, tableContent=null), ArticleFig(id=1322941824922428114, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=EN, label=Fig.8, caption=
Relationship between porosity,resistivity,and distribution of water saturation in the second member of, figureFileSmall=dHmX0ASYjgsvdMnyTU/Uiw==, figureFileBig=qIlD2W3NhE15F3HL/TG3+A==, tableContent=null), ArticleFig(id=1322941825060840147, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=CN, label=图8, caption=
四川盆地川西坳陷须二段孔隙度、电阻率与含水饱和度分布的关系Xujiahe Formation of Western Sichuan Depression,Sichuan Basin
, figureFileSmall=dHmX0ASYjgsvdMnyTU/Uiw==, figureFileBig=qIlD2W3NhE15F3HL/TG3+A==, tableContent=null), ArticleFig(id=1322941825165697748, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=EN, label=Fig. 9, caption=
Characteristics of gas-water occurrence and φ(C1)/φ(C2) variation patterns in fracture-developed and fracture-underdeveloped intervals in the second member of Xujiahe Formation of Western Sichuan Depression, Sichuan Basin, figureFileSmall=a2lGQXNikY0A9NupdsjUEQ==, figureFileBig=8qwfastkGJoemPlcylXoGQ==, tableContent=null), ArticleFig(id=1322941825337664213, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=CN, label=图9, caption=
四川盆地川西坳陷须二段裂缝发育、欠发育深度段气水赋存特征及φ(C1)/φ(C2)变化模式注:a为气藏相对高部位,裂缝中以高熟气充注为主,气测录井φ(C1)/φ(C2)显著极大值;b为气藏相对低部位,裂缝中高熟气充注较少,气测录井φ(C1)/φ(C2)极大值不明显。
, figureFileSmall=a2lGQXNikY0A9NupdsjUEQ==, figureFileBig=8qwfastkGJoemPlcylXoGQ==, tableContent=null), ArticleFig(id=1322941825438327510, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=EN, label=Fig.10, caption=
Comprehensive map of logging curves,fracture-developed intervals,and φ(C1)/φ(C2) distribution in two wells of the second member of Xujiahe Formation of Western Sichuan Depression,Sichuan Basin, figureFileSmall=OGnbYf6BzymDTzJUwnSBdw==, figureFileBig=4Wzw32CmOWcIZ40YctfYVg==, tableContent=null), ArticleFig(id=1322941825526407895, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=CN, label=图10, caption=
四川盆地川西坳陷须二段2口井测井曲线、裂缝发育段及φ(C1)/φ(C2)分布综合图注:1 ft=0.304 8 m; 1 in=0.025 4 m。
, figureFileSmall=OGnbYf6BzymDTzJUwnSBdw==, figureFileBig=4Wzw32CmOWcIZ40YctfYVg==, tableContent=null), ArticleFig(id=1322941825685791448, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=EN, label=Fig.11, caption=
Comparison of φ(C1)/φ(C2) increase multiples between gas layers and gas-water layers in fracture-developed interval in the second member of Xujiahe Formation of Western Sichuan Depression, Sichuan Basin, figureFileSmall=ExBr+Rr5Bz5c0OVKvZPAmg==, figureFileBig=3sBLLHOJeSWkRfVvkDND5Q==, tableContent=null), ArticleFig(id=1322941827392873177, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=CN, label=图11, caption=
四川盆地川西坳陷须二段裂缝发育段气层与气水同层φ(C1)/φ(C2)增大倍数对比, figureFileSmall=ExBr+Rr5Bz5c0OVKvZPAmg==, figureFileBig=3sBLLHOJeSWkRfVvkDND5Q==, tableContent=null), ArticleFig(id=1322941827493536474, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=EN, label=Table 1, caption=
Calculated Ro values for natural gas in the second member of Xujiahe Formation of Xinchang-Gaomiaozi area in Western Sichuan Depression,Sichuan Basin, figureFileSmall=null, figureFileBig=null, tableContent=
| 钻井编号 | 样品深度/m | δ13C1/‰ | δ13C2/‰ | 天然气组分/% | 天然气成因指数(GTI) | 类型指数(KTI) | Ro/% |
|---|
| φ(C1) | φ(C2) | φ(C3) |
|---|
| G61 | 4 959~4 996 | -32.9 | -24.3 | 97.41 | 0.97 | 0.10 | -0.025 5 | 48.73 | 1.97 |
| X5 | 5 137~5 180 | -31.6 | -26.4 | 97.54 | 0.94 | 0.10 | -0.152 0 | 42.39 | 2.27 |
| C6 | 5 240~5 313 | -31.9 | -25.4 | 97.39 | 1.06 | 0.12 | -0.136 0 | 43.19 | 2.18 |
| G08 | 4 702~4 776 | -32.1 | -21.9 | 97.62 | 1.01 | 0.09 | -0.122 0 | 43.92 | 2.09 |
| X02 | 5 282~5 639 | -32.0 | -24.9 | 97.28 | 0.94 | 0.08 | -0.098 0 | 45.10 | 2.16 |
| X09 | 4 605~4 808 | -32.2 | -24.4 | 97.42 | 1.00 | 0.10 | -0.097 0 | 45.15 | 2.07 |
| G13 | 4 640~4 837 | -32.2 | -21.9 | 97.14 | 1.04 | 0.10 | -0.080 0 | 45.98 | 2.02 |
), ArticleFig(id=1322941827862635227, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=CN, label=表1, caption=
四川盆地川西坳陷新场—高庙子地区须二段天然气Ro计算结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 钻井编号 | 样品深度/m | δ13C1/‰ | δ13C2/‰ | 天然气组分/% | 天然气成因指数(GTI) | 类型指数(KTI) | Ro/% |
|---|
| φ(C1) | φ(C2) | φ(C3) |
|---|
| G61 | 4 959~4 996 | -32.9 | -24.3 | 97.41 | 0.97 | 0.10 | -0.025 5 | 48.73 | 1.97 |
| X5 | 5 137~5 180 | -31.6 | -26.4 | 97.54 | 0.94 | 0.10 | -0.152 0 | 42.39 | 2.27 |
| C6 | 5 240~5 313 | -31.9 | -25.4 | 97.39 | 1.06 | 0.12 | -0.136 0 | 43.19 | 2.18 |
| G08 | 4 702~4 776 | -32.1 | -21.9 | 97.62 | 1.01 | 0.09 | -0.122 0 | 43.92 | 2.09 |
| X02 | 5 282~5 639 | -32.0 | -24.9 | 97.28 | 0.94 | 0.08 | -0.098 0 | 45.10 | 2.16 |
| X09 | 4 605~4 808 | -32.2 | -24.4 | 97.42 | 1.00 | 0.10 | -0.097 0 | 45.15 | 2.07 |
| G13 | 4 640~4 837 | -32.2 | -21.9 | 97.14 | 1.04 | 0.10 | -0.080 0 | 45.98 | 2.02 |
), ArticleFig(id=1322941828202373852, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=EN, label=Table 2, caption=
Characteristics of hydrocarbon source-reservoir-carrier bed and natural gas charging during different periods, figureFileSmall=null, figureFileBig=null, tableContent=
| 地质时期 | 生排烃 | 断裂发育 | 储层致密化 | 天然气充注 |
|---|
| 印支晚期 | 未生烃 | 近东西向断裂为主 | 未致密 | |
| 燕山早期 | 少量生烃,低熟油气 | 近东西向断裂为主 | 近致密 | 早期少量低熟油气沿断缝、孔隙喉道进入储层 |
| 燕山中期 | 少量生烃,低熟油气 | 近东北—西南向、近南北向断裂为主 | 致密 | 天然气(晚期生成的高熟气为主)沿断层、裂缝大量进入储层,早期低熟油裂解 |
| 燕山晚期 | 主生排烃期,高熟气 | 近东北—西南向、近南北向断裂为主 | 致密 | 天然气(晚期生成的高熟气为主)沿断层、裂缝大量进入储层,早期低熟油裂解 |
| 喜马拉雅期 | 主生排烃期,高熟气 | 近南北向断裂及大量伴生断层、裂缝系统 | 致密 | 天然气(晚期生成的高熟气为主)沿断层、裂缝大量进入储层,早期低熟油裂解 |
), ArticleFig(id=1322941828751827677, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=CN, label=表2, caption=
不同时期烃源-储层-输导体系特征及天然气充注情况
, figureFileSmall=null, figureFileBig=null, tableContent=
| 地质时期 | 生排烃 | 断裂发育 | 储层致密化 | 天然气充注 |
|---|
| 印支晚期 | 未生烃 | 近东西向断裂为主 | 未致密 | |
| 燕山早期 | 少量生烃,低熟油气 | 近东西向断裂为主 | 近致密 | 早期少量低熟油气沿断缝、孔隙喉道进入储层 |
| 燕山中期 | 少量生烃,低熟油气 | 近东北—西南向、近南北向断裂为主 | 致密 | 天然气(晚期生成的高熟气为主)沿断层、裂缝大量进入储层,早期低熟油裂解 |
| 燕山晚期 | 主生排烃期,高熟气 | 近东北—西南向、近南北向断裂为主 | 致密 | 天然气(晚期生成的高熟气为主)沿断层、裂缝大量进入储层,早期低熟油裂解 |
| 喜马拉雅期 | 主生排烃期,高熟气 | 近南北向断裂及大量伴生断层、裂缝系统 | 致密 | 天然气(晚期生成的高熟气为主)沿断层、裂缝大量进入储层,早期低熟油裂解 |
), ArticleFig(id=1322941829129315038, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=EN, label=Table 3, caption=
Comparison of test results and reservoir types for each well and sand group in the second member of Xujiahe Formation of Western Sichuan Depression,Sichuan Basin, figureFileSmall=null, figureFileBig=null, tableContent=
| 井号 | 测试 砂组 | 工艺 | 日产气量/104 m3 | 日产水量/m3 | φ(C1)/φ(C2) | 成藏类型 |
|---|
| S01 | A+B | 射孔 | 31.20 | | 104.4 | 晚期断层断缝输导区高部位 |
| S05 | A+B | 加砂压裂 | 10.30 | 11.8 | 102.4 | 晚期断层平面过渡带高部位 |
| G13 | B | 加砂压裂 | 0.07 | 133.0 | | 早期断层断缝输导区低部位 |
| A下部 | 加砂压裂 | 2.31 | 24.0 | 89.7 | 早期断层断缝输导区高部位 |
| G10 | C | 射孔 | 0.16 | 199.0 | | 早期断层断缝输导区低部位 |
| B | 加砂压裂 | 5.27 | 46.0 | 67.6 | 早期断层平面过渡带中部位 |
| A | 加砂压裂 | 2.94 | 20.0 | 46.8 | 基质区高部位 |
| X10 | C | 酸压 | 0.31 | 4.8 | 18.5 | 基质区高部位 |
| B | 射孔 | 10.30 | 1.2 | 105.9 | 晚期断层断缝输导区高部位 |
| A | 加砂压裂 | 2.14 | 31.2 | 43.2 | 基质区高部位 |
), ArticleFig(id=1322941829460665055, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=CN, label=表3, caption=
四川盆地川西坳陷须二段各井各砂组测试结果与成藏类型对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 井号 | 测试 砂组 | 工艺 | 日产气量/104 m3 | 日产水量/m3 | φ(C1)/φ(C2) | 成藏类型 |
|---|
| S01 | A+B | 射孔 | 31.20 | | 104.4 | 晚期断层断缝输导区高部位 |
| S05 | A+B | 加砂压裂 | 10.30 | 11.8 | 102.4 | 晚期断层平面过渡带高部位 |
| G13 | B | 加砂压裂 | 0.07 | 133.0 | | 早期断层断缝输导区低部位 |
| A下部 | 加砂压裂 | 2.31 | 24.0 | 89.7 | 早期断层断缝输导区高部位 |
| G10 | C | 射孔 | 0.16 | 199.0 | | 早期断层断缝输导区低部位 |
| B | 加砂压裂 | 5.27 | 46.0 | 67.6 | 早期断层平面过渡带中部位 |
| A | 加砂压裂 | 2.94 | 20.0 | 46.8 | 基质区高部位 |
| X10 | C | 酸压 | 0.31 | 4.8 | 18.5 | 基质区高部位 |
| B | 射孔 | 10.30 | 1.2 | 105.9 | 晚期断层断缝输导区高部位 |
| A | 加砂压裂 | 2.14 | 31.2 | 43.2 | 基质区高部位 |
), ArticleFig(id=1322941829578105569, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=EN, label=Table 4, caption=
Main gas-water distribution and production characteristics under different reservoir formation conditions, figureFileSmall=null, figureFileBig=null, tableContent=
| 平面分区 | 纵向分区 | 主要气水分布特征 | 气水产出特征 |
|---|
| 基质区 | 高部位 | 早期生成的天然气充注为主 | 特低产气,水气比1~10,天然气φ(C1)/φ(C2)低 |
| 低部位 | 低φ(C1)/φ(C2)天然气的含气饱和度进一步降低,层内水为主 | 微产气,水气比大于10,天然气φ(C1)/φ(C2)低 |
| 平面过渡带 | | 低φ(C1)/φ(C2)天然气向高φ(C1)/φ(C2)天然气或深部地层水过渡 | 低产—中产气,天然气φ(C1)/φ(C2)高于基质区,水气比与所处构造高低部位有关 |
| 断缝输导区 | 高部位 | 晚期天然气充注充分 | 中产—高产气,水气比小于1,天然气φ(C1)/φ(C2)2高 |
| 低部位 | 沿断层输导的深部地层水 | 微产—中产气,水气比大于10,天然气φ(C1)/φ(C2)高 |
), ArticleFig(id=1322941829888484067, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=CN, label=表4, caption=
不同成藏条件下的主要气水分布及产出特征
, figureFileSmall=null, figureFileBig=null, tableContent=
| 平面分区 | 纵向分区 | 主要气水分布特征 | 气水产出特征 |
|---|
| 基质区 | 高部位 | 早期生成的天然气充注为主 | 特低产气,水气比1~10,天然气φ(C1)/φ(C2)低 |
| 低部位 | 低φ(C1)/φ(C2)天然气的含气饱和度进一步降低,层内水为主 | 微产气,水气比大于10,天然气φ(C1)/φ(C2)低 |
| 平面过渡带 | | 低φ(C1)/φ(C2)天然气向高φ(C1)/φ(C2)天然气或深部地层水过渡 | 低产—中产气,天然气φ(C1)/φ(C2)高于基质区,水气比与所处构造高低部位有关 |
| 断缝输导区 | 高部位 | 晚期天然气充注充分 | 中产—高产气,水气比小于1,天然气φ(C1)/φ(C2)2高 |
| 低部位 | 沿断层输导的深部地层水 | 微产—中产气,水气比大于10,天然气φ(C1)/φ(C2)高 |
), ArticleFig(id=1322941829976564452, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=EN, label=Table 5, caption=
Statistics of estimated gas column heights in different types of fault-controlled reservoir areas in second member of Xujiahe Formation of Western Sichuan Depression,Sichuan Basin, figureFileSmall=null, figureFileBig=null, tableContent=
| 晚期高序级断层区 | 早期高序级断层区 | 晚期低序级断层区 |
|---|
| 井号 | 推测气柱高度/m | 井号 | 推测气柱高度/m | 井号 | 推测气柱高度/m |
|---|
| S01 | >205 | F10 | <110 | X10 | 约130 |
| S02 | >180 | F13 | 约85 | S04HF | >125 |
| S101 | >190 | F19 | <105 | X09 | 约140 |
| S05 | >210 | L62 | <125 | | |
| S05-4 | >170 | | | | |
| F08 | >195 | | | | |
), ArticleFig(id=1322941830307914469, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322941808182960757, language=CN, label=表5, caption=
四川盆地川西坳陷须二段不同类型断层控藏区域推测气柱高度统计
, figureFileSmall=null, figureFileBig=null, tableContent=
| 晚期高序级断层区 | 早期高序级断层区 | 晚期低序级断层区 |
|---|
| 井号 | 推测气柱高度/m | 井号 | 推测气柱高度/m | 井号 | 推测气柱高度/m |
|---|
| S01 | >205 | F10 | <110 | X10 | 约130 |
| S02 | >180 | F13 | 约85 | S04HF | >125 |
| S101 | >190 | F19 | <105 | X09 | 约140 |
| S05 | >210 | L62 | <125 | | |
| S05-4 | >170 | | | | |
| F08 | >195 | | | | |
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