Article(id=1156907873256169580, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1156907871645556837, articleNumber=null, orderNo=null, doi=10.12404/j.issn.1671-1815.2401843, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1710345600000, receivedDateStr=2024-03-14, revisedDate=1716220800000, revisedDateStr=2024-05-21, acceptedDate=null, acceptedDateStr=null, onlineDate=1753757931293, onlineDateStr=2025-07-29, pubDate=1737993600000, pubDateStr=2025-01-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1753757931293, onlineIssueDateStr=2025-07-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1753757931293, creator=13701087609, updateTime=1753757931293, updator=13701087609, issue=Issue{id=1156907871645556837, tenantId=1146029695717560320, journalId=1146123166801305609, year='2025', volume='25', issue='3', pageStart='879', pageEnd='1312', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1753757930909, creator=13701087609, updateTime=1765095544280, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1204461268821320541, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1156907871645556837, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1204461268825514846, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1156907871645556837, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=999, endPage=1007, ext={EN=ArticleExt(id=1156907874006950002, articleId=1156907873256169580, tenantId=1146029695717560320, journalId=1146123166801305609, language=EN, title=Characterization of Pore Structure of Sand and Conglomerate Based on Micro-CT Scanning, columnId=1156262729003422020, journalTitle=Science Technology and Engineering, columnName=Papers·Petroleum and Natural Gas Industry, runingTitle=null, highlight=null, articleAbstract=
Considering the characteristics of poor permeability, mixed particle sizes, and complex pore structures of conglomerates, a study was conducted on the pore structure characteristics and connectivity of the Mahu Urho Formation conglomerates using CT(computed tomography)scanning and 3D reconstruction techniques. By establishing a pore structure extraction method combining conventional threshold segmentation and top-hat algorithm, the challenge of extracting microcracks was overcome. The study reveals that the main types of pores in the Urho Group conglomerates are intergranular pores, dissolved pores, and microfractures, with the 3D pore types are mainly lamellar pore structures and isolated pore structures. Although pores with equivalent radii of conglomerate samples smaller than 30 μm account for a high proportion, their contribution to the total pore volume is relatively low. Pores larger than 60 μm, while fewer in number, occupy over 50% of the total pore volume, serving as the primary storage space. Experimental samples are predominantly characterized by level III connected domains, exhibiting good connectivity conducive to the accumulation and extraction of oil and gas. The investigation into the pore structure characteristics of strongly inhomogeneous conglomerates holds significant theoretical and practical value for an in-depth understanding of such characteristics and for the exploration and development of oil and gas reservoirs in sand conglomerates.
, correspAuthors=Li-xi LIANG, 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=Wen-shuo XU, Li-xi LIANG, Jian-ru GOU, Yi DING, Xiang-jun LIU), CN=ArticleExt(id=1156907927526269494, articleId=1156907873256169580, tenantId=1146029695717560320, journalId=1146123166801305609, language=CN, title=基于微CT扫描的砂砾岩孔隙结构表征, 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=
针对砂砾岩渗透性差、颗粒大小混杂、孔隙结构复杂的特点,利用CT(computed tomography)扫描及三维重构技术对玛湖乌尔禾组砂砾岩的孔隙结构特征及连通性展开研究,通过建立结合常规阈值分割与顶帽算法的孔隙结构提取方法,解决了微裂缝难以提取的难题。研究发现,乌尔禾组砂砾岩主要以粒间孔隙、溶蚀孔隙和微裂缝为主,三维结构以片状和孤立结构为主。砂砾岩样品等效半径小于30 μm的孔隙虽然占比较高,但其对总孔隙体积的贡献却相对较低,而大于60 μm的孔隙虽然较少,但其占据着总孔隙体积50%以上,为主要储集空间。实验样品以Ⅲ级连通域为主,有较好的连通性,有利于油气的聚集和开采。强非均质砂砾岩孔隙结构特征的研究对深入了解砂砾岩孔隙结构特征、寻找和开发砂砾岩油气藏有重要的理论和实践价值。
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* 梁利喜(1976—),男,汉族,河南新乡人,博士,研究员。研究方向:井眼稳定技术、岩石物理与岩石力学、石油工程测井等。E-mail:
274190673@qq.com。
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徐雯硕(2000—),女,汉族,浙江绍兴人,硕士研究生。研究方向:复杂岩石力学特性表征与评价。E-mail:1259101309@qq.com。
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徐雯硕(2000—),女,汉族,浙江绍兴人,硕士研究生。研究方向:复杂岩石力学特性表征与评价。E-mail:1259101309@qq.com。
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Petroleum Exploration and Development,
2016,
43(3): 537-546., articleTitle=Three dimensional characterization and quantitative connectivity analysis of micro/nano pore space, refAbstract=null)], funds=[Fund(id=1204542858658295938, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873256169580, awardId=2017ZX05070-001, language=CN, fundingSource=国家科技重大专项(2017ZX05070-001), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1204542850416489150, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873256169580, xref=null, ext=[AuthorCompanyExt(id=1204542850429072064, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873256169580, companyId=1204542850416489150, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1. National Key Laboratory of Oil and Gas Reservoir Geology and Exploration, Southwest Petroleum University, Chengdu 610500, China), AuthorCompanyExt(id=1204542850437460673, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873256169580, companyId=1204542850416489150, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1.西南石油大学, 油气藏地质及开发工程全国重点实验室, 成都 610500)]), AuthorCompany(id=1204542850529735370, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873256169580, xref=null, ext=[AuthorCompanyExt(id=1204542850542318284, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873256169580, companyId=1204542850529735370, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2. Petroleum Engineering Technology Research Institute, Sinopec Northwest Oilfield Company, Urumqi 830001, China), AuthorCompanyExt(id=1204542850550706894, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873256169580, companyId=1204542850529735370, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2.中国石化西北油田分公司石油工程技术研究院, 乌鲁木齐 830001)])], figs=[ArticleFig(id=1204542855005058010, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873256169580, language=EN, label=Fig.1, caption=
The original data volume obtained after CT scan, figureFileSmall=mvBF00Pw/oP5DghsusMEHg==, figureFileBig=Fv8KwZnKTHPu+1Tax7mLFQ==, tableContent=null), ArticleFig(id=1204542855130887138, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873256169580, language=CN, label=图1, caption=
CT扫描后的原始数据体, figureFileSmall=mvBF00Pw/oP5DghsusMEHg==, figureFileBig=Fv8KwZnKTHPu+1Tax7mLFQ==, tableContent=null), ArticleFig(id=1204542855256716269, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873256169580, language=EN, label=Fig.2, caption=
Two-dimensional image processing of sample 2, figureFileSmall=dCsniJP2gN58d3R8RYffWA==, figureFileBig=P17LcGWorXNW8GlM1GX4QQ==, tableContent=null), ArticleFig(id=1204542855369962490, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873256169580, language=CN, label=图2, caption=
样品2二维图像处理, figureFileSmall=dCsniJP2gN58d3R8RYffWA==, figureFileBig=P17LcGWorXNW8GlM1GX4QQ==, tableContent=null), ArticleFig(id=1204542855491597312, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873256169580, language=EN, label=Fig.3, caption=
Schematic diagram of representative elementary volume, figureFileSmall=X+TFZlaMompdmmWB6zxBcg==, figureFileBig=GrBN/hdbuwG7dpMMC2353Q==, tableContent=null), ArticleFig(id=1204542855600648199, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873256169580, language=CN, label=图3, caption=
表征单元体示意图, figureFileSmall=X+TFZlaMompdmmWB6zxBcg==, figureFileBig=GrBN/hdbuwG7dpMMC2353Q==, tableContent=null), ArticleFig(id=1204542855713894414, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873256169580, language=EN, label=Fig.4, caption=
Pore network model inside the rock, figureFileSmall=ryegmksHZWHNPh6o58WxgA==, figureFileBig=K9BC7rlhY4pWplWXowbgQw==, tableContent=null), ArticleFig(id=1204542855835529240, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873256169580, language=CN, label=图4, caption=
岩石内部孔隙网络模型, figureFileSmall=ryegmksHZWHNPh6o58WxgA==, figureFileBig=K9BC7rlhY4pWplWXowbgQw==, tableContent=null), ArticleFig(id=1204542855957164064, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873256169580, language=EN, label=Fig.5, caption=
Pore types under two-dimensional gray-scale image of sandy conglomerate, figureFileSmall=d7HQir8IVPif3izWzjgWBQ==, figureFileBig=JNQc/Rjb3JDfIZYOT1Kn1A==, tableContent=null), ArticleFig(id=1204542856041050151, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873256169580, language=CN, label=图5, caption=
砂砾岩的二维灰度图像下的孔隙类型, figureFileSmall=d7HQir8IVPif3izWzjgWBQ==, figureFileBig=JNQc/Rjb3JDfIZYOT1Kn1A==, tableContent=null), ArticleFig(id=1204542856162684978, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873256169580, language=EN, label=Fig.6, caption=
Automatic skeleton model of pores and throats, figureFileSmall=8flz6Wd/OTLM7Zk+pTQo/Q==, figureFileBig=FAvhSUdcLRO1regGcJCcTg==, tableContent=null), ArticleFig(id=1204542856267542587, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873256169580, language=CN, label=图6, caption=
自动骨架孔喉模型, figureFileSmall=8flz6Wd/OTLM7Zk+pTQo/Q==, figureFileBig=FAvhSUdcLRO1regGcJCcTg==, tableContent=null), ArticleFig(id=1204542856359817282, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873256169580, language=EN, label=Fig.7, caption=
Three-dimensional pore network model of sandy conglomerate samples, figureFileSmall=yd4PNHtHYfSgY1+XiVwhbQ==, figureFileBig=Gcojzn5jwK5k3eA+REMocA==, tableContent=null), ArticleFig(id=1204542856510812235, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873256169580, language=CN, label=图7, caption=
砂砾岩样品三维孔隙网络模型, figureFileSmall=yd4PNHtHYfSgY1+XiVwhbQ==, figureFileBig=Gcojzn5jwK5k3eA+REMocA==, tableContent=null), ArticleFig(id=1204542856640835666, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873256169580, language=EN, label=Fig.8, caption=
Pore and throat structure distribution, figureFileSmall=z7Jt74mfh5yEChZXCOBhAQ==, figureFileBig=xDWw1WphjTFI0m6VkAgNfA==, tableContent=null), ArticleFig(id=1204542856775053400, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873256169580, language=CN, label=图8, caption=
孔喉结构分布图, figureFileSmall=z7Jt74mfh5yEChZXCOBhAQ==, figureFileBig=xDWw1WphjTFI0m6VkAgNfA==, tableContent=null), ArticleFig(id=1204542856875716707, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873256169580, language=EN, label=Table 1, caption=
Pore structure characteristics of sandy conglomerate samples
, figureFileSmall=null, figureFileBig=null, tableContent=
| 样品号 | 绝对孔隙度/% | 连通孔隙度/% | 气测孔隙度/% | 平均配位数 | 迂曲度 |
| 1 | 7.11 | 5.20 | 6.85 | 2.69 | 4.10 |
| 2 | 8.87 | 6.91 | 7.52 | 3.46 | 3.56 |
| 3 | 8.69 | 6.57 | 7.85 | 2.93 | 3.85 |
| 4 | 9.35 | 8.17 | 8.64 | 3.29 | 3.06 |
), ArticleFig(id=1204542858016567394, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873256169580, language=CN, label=表1, caption=
砂砾岩样品的孔隙结构特征
, figureFileSmall=null, figureFileBig=null, tableContent=
| 样品号 | 绝对孔隙度/% | 连通孔隙度/% | 气测孔隙度/% | 平均配位数 | 迂曲度 |
| 1 | 7.11 | 5.20 | 6.85 | 2.69 | 4.10 |
| 2 | 8.87 | 6.91 | 7.52 | 3.46 | 3.56 |
| 3 | 8.69 | 6.57 | 7.85 | 2.93 | 3.85 |
| 4 | 9.35 | 8.17 | 8.64 | 3.29 | 3.06 |
), ArticleFig(id=1204542858293391471, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873256169580, language=EN, label=Table 2, caption=
Distribution parameter table of pore and throat structure
, figureFileSmall=null, figureFileBig=null, tableContent=
| 样品号 | 最大孔隙半径/μm | 最小孔隙半径/μm | 平均孔隙半径/μm | 最大喉道半径/μm | 最小喉道半径/μm | 平均喉道半径/μm |
| 1 | 103.24 | 3.14 | 33.99 | 52.39 | 1.35 | 13.34 |
| 2 | 140.27 | 3.51 | 33.11 | 101.78 | 1.28 | 23.23 |
| 3 | 143.38 | 3.28 | 34.40 | 93.52 | 1.31 | 20.88 |
| 4 | 131.89 | 3.16 | 35.47 | 97.74 | 1.26 | 16.97 |
), ArticleFig(id=1204542858410831991, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873256169580, language=CN, label=表2, caption=
孔喉结构分布参数表
, figureFileSmall=null, figureFileBig=null, tableContent=
| 样品号 | 最大孔隙半径/μm | 最小孔隙半径/μm | 平均孔隙半径/μm | 最大喉道半径/μm | 最小喉道半径/μm | 平均喉道半径/μm |
| 1 | 103.24 | 3.14 | 33.99 | 52.39 | 1.35 | 13.34 |
| 2 | 140.27 | 3.51 | 33.11 | 101.78 | 1.28 | 23.23 |
| 3 | 143.38 | 3.28 | 34.40 | 93.52 | 1.31 | 20.88 |
| 4 | 131.89 | 3.16 | 35.47 | 97.74 | 1.26 | 16.97 |
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