Article(id=1322942085350958000, tenantId=1146029695717560320, journalId=1322258508890079423, issueId=1322941718441623734, articleNumber=null, orderNo=null, doi=10.13809/j.cnki.cn32-1825/te.2025100, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1745251200000, receivedDateStr=2025-04-22, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793343572222, onlineDateStr=2026-10-30, pubDate=1779724800000, pubDateStr=2026-05-26, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793343572222, onlineIssueDateStr=2026-10-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793343572222, creator=13701087609, updateTime=1793343572222, updator=13701087609, issue=Issue{id=1322941718441623734, tenantId=1146029695717560320, journalId=1322258508890079423, year='2026', volume='16', issue='3', pageStart='489', pageEnd='736', issueExtLink='null', onlineDate='null', pubDate='1779724800000', pubDateStr='2026-05-26', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793343484745, creator='13701087609', updateTime=1793344165564, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322944574066402279, tenantId=1146029695717560320, journalId=1322258508890079423, issueId=1322941718441623734, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322944574070596584, tenantId=1146029695717560320, journalId=1322258508890079423, issueId=1322941718441623734, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=630, endPage=641, ext={EN=ArticleExt(id=1322942085896217521, articleId=1322942085350958000, tenantId=1146029695717560320, journalId=1322258508890079423, language=EN, title=Research on optimization of favorable production and construction areas and development technical policies for Dingshan block, columnId=1322941693024141328, journalTitle=Petroleum Reservoir Evaluation and Development, columnName=Oil and Gas Development, runingTitle=null, highlight=
The Dingshan block in the Qijiang shale gas field has abundant shale gas resources and great potential for production increase. However, due to the combined influence of geological factors such as complex structures, faults, and in-situ stress, gas well productivity varies significantly. The favorable production and construction units are not yet clear, and the design of targeted development technical policies is difficult, posing significant challenges for achieving overall efficient development. Through detailed reservoir characterization, seven geological factors were selected, including structure, fractures, burial depth, formation dip angle, gas content, formation pressure coefficient, and in-situ stress, to establish zoning evaluation criteria. On this basis, combined with the analysis of the main controlling factors of productivity and zone-specific investment-benefit calculations, zone 2 and zone 3 were identified as favorable areas for production and construction. An integrated technology of geological modeling, fracturing simulation, and numerical simulation centered on “natural fracture + hydraulic fracture” coupled propagation simulation was adopted to simulate the horizontal and vertical propagation patterns of hydraulic fracturing fractures under different stimulation scales. An embedded discrete fracture model (EDFM) was constructed, and numerical simulation models of EDFM were established for different zones. Through the integrated technical-economic evaluation, well pattern deployment schemes with different target window positions, horizontal well orientations, well spacings, and horizontal section lengths were designed, and differentiated development technical policies for different zones were optimized and formulated. The results showed that under the current development conditions, economic and effective development could be achieved in zone 2 and zone 3. The reasonable horizontal well traverse layers were the 12th to 32nd sublayers, with a horizontal section length of 1 900-2 100 m, an angle between the horizontal well and the maximum horizontal principal stress of 60°-85°, and a well spacing of 300-350m. Well spacing could be appropriately increased by 50-100 m in fracture-developed areas and near existing wells. The research findings provide technical support for the formulation of production and construction plans for zone 2 and zone 3 in the Dingshan block, and offer a feasible technical approach and method for efficient shale gas development under complex geological conditions.
, articleAbstract=null, authors=NANYING LI1, YONG ZHAO1, QIN LI2, HAITAO CAO1, XIANCHAO CHEN2, XINGMENG WANG1, LIUYANG XIANG1, authorsList=NANYING LI, YONG ZHAO, QIN LI, HAITAO CAO, XIANCHAO CHEN, XINGMENG WANG, LIUYANG XIANG, authorCompany=null, correspAuthors=YONG ZHAO, 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=1322942095073354706, articleId=1322942085350958000, tenantId=1146029695717560320, journalId=1322258508890079423, language=CN, title=丁山区块有利产建区优选及开发技术政策研究, columnId=1322941693259022355, journalTitle=油气藏评价与开发, columnName=油气开发, runingTitle=null, highlight=
綦江页岩气田丁山区块页岩气资源量丰富,上产潜力巨大,但受复杂构造、断缝及地应力等地质因素综合影响,气井产能差异显著,有利产建单元尚不明确,针对性开发技术政策设计难度较大,整体效益开发面临较大挑战。通过开展气藏精细描述研究,选取构造、裂缝、埋深、地层倾角、含气量、地层压力系数、地应力7项地质要素,建立了分区评价标准。在此基础上,结合产能主控因素分析、分区投资-效益测算,明确落实中2区、中3区为有利产建区。采用以“天然裂缝+人工裂缝”耦合扩展模拟为核心的地质建模-压裂模拟-数值模拟一体化技术,模拟不同改造规模下水力压裂裂缝横纵向扩展规律,构建嵌入式离散裂缝模型(EDFM),建立不同分区EDFM数值模拟模型。通过技术-经济一体化评价,设计不同靶窗位置、水平井方位、井距及水平段长度的井网部署方案,优化并制定分区差异性开发技术政策。研究结果表明:在现有开发条件下,中2区、中3区可实现经济有效开发;合理水平井穿行层位为12—32小层,水平段长度1 900~2 100 m,水平井与最大水平主应力夹角为60°~85°,井距300~350 m;裂缝发育区及老井附近井距可适当增加50~100 m。研究成果为丁山区块中2区、中3区产建方案编制提供了技术支撑,为复杂地质条件下页岩气高效开发提供了可行的技术思路和方法。
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1 中国石化西南油气分公司勘探开发研究院,四川 成都 610500, bio={"content":"
李南颖(1991—),女,硕士,副研究员,从事页岩气气藏工程与数值模拟研究。地址:四川省成都市高新区吉泰路688号,邮政编码610500。E-mail:linanying.xnyq@sinopec.com
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李南颖(1991—),女,硕士,副研究员,从事页岩气气藏工程与数值模拟研究。地址:四川省成都市高新区吉泰路688号,邮政编码610500。E-mail:linanying.xnyq@sinopec.com
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1 Exploration and Development Research Institute, Sinopec Southwest Oil & Gas Company, Chengdu, Sichuan 610500, China), AuthorCompanyExt(id=1322942096247759829, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, companyId=1322942095924798419, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 中国石化西南油气分公司勘探开发研究院,四川 成都 610500)]), AuthorCompany(id=1322942097547994070, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, xref=2, ext=[AuthorCompanyExt(id=1322942097568965591, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, companyId=1322942097547994070, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 Chengdu University of Technology, Chengdu, Sichuan 610059, China), AuthorCompanyExt(id=1322942097577354200, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, companyId=1322942097547994070, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 成都理工大学,四川 成都 610059)])], figs=[ArticleFig(id=1322942107236835337, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=EN, label=Fig.1, caption=
Bottom structure of Longmaxi Formation in Dingshan block, figureFileSmall=xat46piM9CwOFQyyr0OPtA==, figureFileBig=wqPNJwBz/GIKFrddRlemrg==, tableContent=null), ArticleFig(id=1322942107316527114, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=CN, label=图1, caption=
丁山区块龙马溪组底面构造, figureFileSmall=xat46piM9CwOFQyyr0OPtA==, figureFileBig=wqPNJwBz/GIKFrddRlemrg==, tableContent=null), ArticleFig(id=1322942107668848651, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=EN, label=Fig. 2, caption=
Influence degree of various factors by grey relational analysis, figureFileSmall=T/iwpL1ZJ+lb7ObvlCGjOQ==, figureFileBig=wHdJQoXs+8VKLbe04CQqXQ==, tableContent=null), ArticleFig(id=1322942107970838540, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=CN, label=图2, caption=
灰色关联分析各因素影响程度, figureFileSmall=T/iwpL1ZJ+lb7ObvlCGjOQ==, figureFileBig=wHdJQoXs+8VKLbe04CQqXQ==, tableContent=null), ArticleFig(id=1322942108046336013, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=EN, label=Fig. 3, caption=
Comprehensive zoning of Dingshan block, figureFileSmall=B1dIC/vyUCeGVHZBeQtS8Q==, figureFileBig=0ZahNjcIE/g3fQSN5jxJyA==, tableContent=null), ArticleFig(id=1322942108105056270, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=CN, label=图3, caption=
丁山区块综合分区, figureFileSmall=B1dIC/vyUCeGVHZBeQtS8Q==, figureFileBig=0ZahNjcIE/g3fQSN5jxJyA==, tableContent=null), ArticleFig(id=1322942108188942351, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=EN, label=Fig. 4, caption=
Optimization design process of development technical policies, figureFileSmall=e6rXh2lHJWGbWe0eWaYuJw==, figureFileBig=wa9r7Afbt9UoiEo78dA1Hg==, tableContent=null), ArticleFig(id=1322942108264439824, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=CN, label=图4, caption=
开发技术政策优化设计流程, figureFileSmall=e6rXh2lHJWGbWe0eWaYuJw==, figureFileBig=wa9r7Afbt9UoiEo78dA1Hg==, tableContent=null), ArticleFig(id=1322942108390268945, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=EN, label=Fig. 5, caption=
Simulation of fracture propagation under different stimulation scales in zone 3, figureFileSmall=zgdY1m5qHUgBzZ6R/GEauA==, figureFileBig=WGjhTc1rRLgdTViPQahnyw==, tableContent=null), ArticleFig(id=1322942108457377810, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=CN, label=图5, caption=
中3区不同改造规模下裂缝扩展模拟, figureFileSmall=zgdY1m5qHUgBzZ6R/GEauA==, figureFileBig=WGjhTc1rRLgdTViPQahnyw==, tableContent=null), ArticleFig(id=1322942108545458195, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=EN, label=Fig. 6, caption=
Simulation results of fracture propagation at different target window locations, figureFileSmall=f4te3tFmS3jV/QY7JaQthQ==, figureFileBig=vRIrxXHh658O6wVCEwtuvQ==, tableContent=null), ArticleFig(id=1322942108616761364, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=CN, label=图6, caption=
不同靶窗位置裂缝扩展模拟结果, figureFileSmall=f4te3tFmS3jV/QY7JaQthQ==, figureFileBig=vRIrxXHh658O6wVCEwtuvQ==, tableContent=null), ArticleFig(id=1322942108805505045, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=EN, label=Fig. 7, caption=
Hydraulic fracturing simulation results under different angles between horizontal well and maximum horizontal principal stress, figureFileSmall=lIbH8sA52WW1Yc25yAqNPA==, figureFileBig=xtdE08yg/eIgyqIfgm1Xpw==, tableContent=null), ArticleFig(id=1322942108914556950, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=CN, label=图7, caption=
不同水平井与最大水平主应力夹角下压裂模拟结果, figureFileSmall=lIbH8sA52WW1Yc25yAqNPA==, figureFileBig=xtdE08yg/eIgyqIfgm1Xpw==, tableContent=null), ArticleFig(id=1322942108990054423, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=EN, label=Fig. 8, caption=
Relationship between horizontal well azimuth and stimulated reservoir volume, figureFileSmall=2qBmAKg1Eo0D3QZW0D1d8g==, figureFileBig=IUDuN1Mrsw2cXHCc2tbxhw==, tableContent=null), ArticleFig(id=1322942109061357592, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=CN, label=图8, caption=
不同水平井方位与储层改造体积关系, figureFileSmall=2qBmAKg1Eo0D3QZW0D1d8g==, figureFileBig=IUDuN1Mrsw2cXHCc2tbxhw==, tableContent=null), ArticleFig(id=1322942109145243673, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=EN, label=Fig. 9, caption=
Formation pressure distribution at end of scheme evaluation period under well spacing of 250-400 m, figureFileSmall=gYRxUucA/COHeqqI8UwmzA==, figureFileBig=QU24Mobh+fQ1w3Rf2l+iwA==, tableContent=null), ArticleFig(id=1322942109216546842, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=CN, label=图9, caption=
井距250~400 m方案评价期末地层压力分布, figureFileSmall=gYRxUucA/COHeqqI8UwmzA==, figureFileBig=QU24Mobh+fQ1w3Rf2l+iwA==, tableContent=null), ArticleFig(id=1322942110890074139, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=EN, label=Fig. 10, caption=
Relationship between recovery factor and estimated ultimate recovery (EUR) under different well spacings, figureFileSmall=9eqJiGVbblCtPnusF8UFqQ==, figureFileBig=zhkAiHdn8HVX5CmB8pQkpQ==, tableContent=null), ArticleFig(id=1322942110973960220, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=CN, label=图10, caption=
不同井距下采出程度和评估可采储量(EUR)关系, figureFileSmall=9eqJiGVbblCtPnusF8UFqQ==, figureFileBig=zhkAiHdn8HVX5CmB8pQkpQ==, tableContent=null), ArticleFig(id=1322942111074623517, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=EN, label=Fig. 11, caption=
Relationship between well spacing and economic investment per one billion cubic meters of production, figureFileSmall=hxyEomXvaLTrj0wwPX3szA==, figureFileBig=AltKl93rmK9qaJ2jEpibNg==, tableContent=null), ArticleFig(id=1322942111166898206, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=CN, label=图11, caption=
不同井距与建产十亿立方米经济投资关系, figureFileSmall=hxyEomXvaLTrj0wwPX3szA==, figureFileBig=AltKl93rmK9qaJ2jEpibNg==, tableContent=null), ArticleFig(id=1322942111330476063, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=EN, label=Fig. 12, caption=
Relationship between EUR of new wells and well spacing under different cumulative gas production levels of existing wells, figureFileSmall=xObN2Pafb6aj4AYew6/51w==, figureFileBig=NMzyqxQBysMTHiZqTHEXcw==, tableContent=null), ArticleFig(id=1322942111422750752, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=CN, label=图12, caption=
老井不同累计产气量下不同开发井距与新井EUR关系, figureFileSmall=xObN2Pafb6aj4AYew6/51w==, figureFileBig=NMzyqxQBysMTHiZqTHEXcw==, tableContent=null), ArticleFig(id=1322942111489859617, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=EN, label=Fig. 13, caption=
Numerical simulation models with different horizontal section lengths, figureFileSmall=p1JaSbrOD4lAdc3XBL+9xg==, figureFileBig=A5RJXFiawNU5jvnpDoieBw==, tableContent=null), ArticleFig(id=1322942111552774178, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=CN, label=图13, caption=
不同水平段长度数值模拟模型, figureFileSmall=p1JaSbrOD4lAdc3XBL+9xg==, figureFileBig=A5RJXFiawNU5jvnpDoieBw==, tableContent=null), ArticleFig(id=1322942111611494435, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=EN, label=Fig. 14, caption=
Relationship of horizontal section length with EUR increment and unit oil and gas development cost, figureFileSmall=phFuYYM3qJfD/vVcvl2OFg==, figureFileBig=I37dtXZAiXS/DxOZ0i7Log==, tableContent=null), ArticleFig(id=1322942111674408996, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=CN, label=图14, caption=
不同水平段长度与EUR增量和单位油气开发成本关系, figureFileSmall=phFuYYM3qJfD/vVcvl2OFg==, figureFileBig=I37dtXZAiXS/DxOZ0i7Log==, tableContent=null), ArticleFig(id=1322942111741517862, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=EN, label=Table 1, caption=
Evaluation criteria for fine zoning of Dingshan block, figureFileSmall=null, figureFileBig=null, tableContent=
构造 部位 | 裂缝发育 程度 | 埋深/m | 地层倾角/ (°) | 含气量/(m3/t) | 地层压力系数 | 最小水平主应力/MPa |
|---|
| 鼻核 | 发育 | <2 000(中浅层) | <10 | <6 | 低压 (<0.9) | 低应力(<70) |
| 鼻中、鼻端 | 较发育 | 2 000~<3 500(中深层) | 10~<20 | 6~<7 | 常压 (0.9~<1.3) | 中应力(70~<90) |
| 翼部 | 欠发育 | 3 500~<4 500(深层) | ≥20 | ≥7 | 高压 (≥1.3) | 高应力(≥90) |
), ArticleFig(id=1322942111837986855, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=CN, label=表1, caption=
丁山区块精细分区评价标准
, figureFileSmall=null, figureFileBig=null, tableContent=
构造 部位 | 裂缝发育 程度 | 埋深/m | 地层倾角/ (°) | 含气量/(m3/t) | 地层压力系数 | 最小水平主应力/MPa |
|---|
| 鼻核 | 发育 | <2 000(中浅层) | <10 | <6 | 低压 (<0.9) | 低应力(<70) |
| 鼻中、鼻端 | 较发育 | 2 000~<3 500(中深层) | 10~<20 | 6~<7 | 常压 (0.9~<1.3) | 中应力(70~<90) |
| 翼部 | 欠发育 | 3 500~<4 500(深层) | ≥20 | ≥7 | 高压 (≥1.3) | 高应力(≥90) |
), ArticleFig(id=1322942111934455848, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=EN, label=Table 2, caption=
Comprehensive evaluation of geological zoning in Dingshan block, figureFileSmall=null, figureFileBig=null, tableContent=
| 分区 | 埋深/m | 厚度/m | 含气量/(m3/t) | 地层倾角/(°) | 裂缝发育程度 | 地层压力系数 | 最小水平主应力/MPa | 水平应力差/MPa |
|---|
| 西1区 | 3 500~4 500 | 30~33 | 6.5 | 20~30 | 欠发育 | 1.3~1.6 | 90~110 | 15~25 |
| 西2区 | 1 800~3 500 | 26~31 | 5.7 | 10~30 | 局部发育 | 1.0~1.3 | 45~70 | 10~20 |
| 中1区 | 4 000~4 500 | 32~34 | 7.3 | 5~15 | 局部发育 | 1.6~1.9 | 90~110 | 15~20 |
| 中2区 | 3 500~4 000 | 30~33 | 7.0 | 10~20 | 发育 | 1.3~1.6 | 70~90 | 13~20 |
| 中3区 | 1 800~3 500 | 26~31 | 6.6 | 10~20 | 较发育 | 1.0~1.3 | 50~70 | 10~15 |
| 东1区 | 4 000~4 500 | 28~33 | 7.1 | 10~20 | 欠发育 | 1.6~2.0 | 90~110 | 15~28 |
| 东2区 | 3 500~4 000 | 28~30 | 7.0 | 10~30 | 局部发育 | 1.3~1.6 | 70~90 | 10~18 |
| 东3区 | 1 800~3 500 | 25~30 | 5.6 | 10~30 | 局部发育 | 1.0~1.3 | 50~70 | 10~15 |
), ArticleFig(id=1322942112035119145, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=CN, label=表2, caption=
丁山区块地质分区综合评价
, figureFileSmall=null, figureFileBig=null, tableContent=
| 分区 | 埋深/m | 厚度/m | 含气量/(m3/t) | 地层倾角/(°) | 裂缝发育程度 | 地层压力系数 | 最小水平主应力/MPa | 水平应力差/MPa |
|---|
| 西1区 | 3 500~4 500 | 30~33 | 6.5 | 20~30 | 欠发育 | 1.3~1.6 | 90~110 | 15~25 |
| 西2区 | 1 800~3 500 | 26~31 | 5.7 | 10~30 | 局部发育 | 1.0~1.3 | 45~70 | 10~20 |
| 中1区 | 4 000~4 500 | 32~34 | 7.3 | 5~15 | 局部发育 | 1.6~1.9 | 90~110 | 15~20 |
| 中2区 | 3 500~4 000 | 30~33 | 7.0 | 10~20 | 发育 | 1.3~1.6 | 70~90 | 13~20 |
| 中3区 | 1 800~3 500 | 26~31 | 6.6 | 10~20 | 较发育 | 1.0~1.3 | 50~70 | 10~15 |
| 东1区 | 4 000~4 500 | 28~33 | 7.1 | 10~20 | 欠发育 | 1.6~2.0 | 90~110 | 15~28 |
| 东2区 | 3 500~4 000 | 28~30 | 7.0 | 10~30 | 局部发育 | 1.3~1.6 | 70~90 | 10~18 |
| 东3区 | 1 800~3 500 | 25~30 | 5.6 | 10~30 | 局部发育 | 1.0~1.3 | 50~70 | 10~15 |
), ArticleFig(id=1322942112177725482, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=EN, label=Table 3, caption=
Production capacity-investment benefit evaluation of zoning in Dingshan block, figureFileSmall=null, figureFileBig=null, tableContent=
| 分区 | 单井平 均段长/ m | 单井平 均投资/ 万元 | 井均 EUR/ 108 m3 | 经济极限可采储量/108 m3 | 经济可行性 |
|---|
| 西1、2区 | 1 700~1 850 | 5 000~8 000 | 0.40~0.53 | 0.60~0.78 | 不可行 |
| 中1区 | 1 600 | 8 400 | 0.65 | 0.90 | 不可行 |
| 中2区 | 1 800 | 6 200 | 0.74 | 0.73 | 可行 |
| 中3区 | 2 000 | 4 800 | 0.62 | 0.60 | 可行 |
| 东1、2、3区 | 1 600~2 050 | 4 800~8 400 | 0.45~0.65 | 0.60~0.90 | 不可行 |
), ArticleFig(id=1322942112240640043, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=CN, label=表3, caption=
丁山区块分区产能-投资效益评价
, figureFileSmall=null, figureFileBig=null, tableContent=
| 分区 | 单井平 均段长/ m | 单井平 均投资/ 万元 | 井均 EUR/ 108 m3 | 经济极限可采储量/108 m3 | 经济可行性 |
|---|
| 西1、2区 | 1 700~1 850 | 5 000~8 000 | 0.40~0.53 | 0.60~0.78 | 不可行 |
| 中1区 | 1 600 | 8 400 | 0.65 | 0.90 | 不可行 |
| 中2区 | 1 800 | 6 200 | 0.74 | 0.73 | 可行 |
| 中3区 | 2 000 | 4 800 | 0.62 | 0.60 | 可行 |
| 东1、2、3区 | 1 600~2 050 | 4 800~8 400 | 0.45~0.65 | 0.60~0.90 | 不可行 |
), ArticleFig(id=1322942112316137516, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=EN, label=Table 4, caption=
Parameters and simulation results of hydraulic fracture propagation models for zone 2 and zone 3 in Dingshan block, figureFileSmall=null, figureFileBig=null, tableContent=
| 分区 | 方案 | 用液强度/ (m3/m) | 加砂强度/ (m3/m) | 施工排量/ (m3/min) | 模拟结果 |
|---|
| 缝长/m | 缝高/m |
|---|
| 中2区 | 方案一 | 15 | 1.4 | 18 | 80 | 25.5 |
| 方案二 | 20 | 1.8 | 18 | 109 | 26.0 |
| 方案三 | 25 | 2.1 | 18 | 130 | 27.5 |
| 方案四 | 30 | 2.3 | 18 | 143 | 28.5 |
| 方案五 | 25 | 2.4 | 18 | 130 | 29.0 |
| 方案六 | 30 | 2.6 | 18 | 143 | 30.0 |
| 中3区 | 方案一 | 15 | 1.2 | 18 | 86 | 27.0 |
| 方案二 | 20 | 1.4 | 18 | 117 | 29.0 |
| 方案三 | 25 | 1.5 | 18 | 136 | 30.5 |
| 方案四 | 30 | 1.6 | 18 | 151 | 31.5 |
| 方案五 | 25 | 1.8 | 18 | 136 | 32.0 |
| 方案六 | 30 | 2.0 | 18 | 151 | 32.5 |
), ArticleFig(id=1322942112588767277, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=CN, label=表4, caption=
丁山区块中2区、中3区人工裂缝扩展模拟模型参数及模拟结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 分区 | 方案 | 用液强度/ (m3/m) | 加砂强度/ (m3/m) | 施工排量/ (m3/min) | 模拟结果 |
|---|
| 缝长/m | 缝高/m |
|---|
| 中2区 | 方案一 | 15 | 1.4 | 18 | 80 | 25.5 |
| 方案二 | 20 | 1.8 | 18 | 109 | 26.0 |
| 方案三 | 25 | 2.1 | 18 | 130 | 27.5 |
| 方案四 | 30 | 2.3 | 18 | 143 | 28.5 |
| 方案五 | 25 | 2.4 | 18 | 130 | 29.0 |
| 方案六 | 30 | 2.6 | 18 | 143 | 30.0 |
| 中3区 | 方案一 | 15 | 1.2 | 18 | 86 | 27.0 |
| 方案二 | 20 | 1.4 | 18 | 117 | 29.0 |
| 方案三 | 25 | 1.5 | 18 | 136 | 30.5 |
| 方案四 | 30 | 1.6 | 18 | 151 | 31.5 |
| 方案五 | 25 | 1.8 | 18 | 136 | 32.0 |
| 方案六 | 30 | 2.0 | 18 | 151 | 32.5 |
), ArticleFig(id=1322942112668459054, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=EN, label=Table 5, caption=
Statistical geological parameters of different development sublayers in zone 2 and zone 3,Dingshan block, figureFileSmall=null, figureFileBig=null, tableContent=
地质 小层 | 开发 小层 | 孔隙度/ % | 含气量/ (m3/t) | TOC含量/ % | 脆性矿物 含量/% | 最小水平主应力/MPa | 水平两向 应力差/MPa | 综合 评价 |
|---|
| 6 | 6 | 4.13 | 2.85 | 1.38 | 57.45 | 85.33 | 16.06 | Ⅲ |
| 5 | 5 | 4.18 | 2.99 | 1.52 | 58.93 | 85.11 | 16.28 | Ⅲ |
| 4 | 4 | 4.41 | 3.37 | 2.22 | 59.18 | 84.89 | 14.78 | ⅡB |
| 3 | 33 | 4.70 | 3.94 | 2.66 | 63.07 | 85.50 | 14.89 | ⅡB |
| 32 | 5.09 | 4.82 | 3.33 | 68.79 | 83.17 | 14.61 | ⅡA |
| 31 | 5.35 | 5.62 | 4.04 | 74.80 | 82.76 | 14.67 | ⅡA |
| 2 | 2 | 5.62 | 6.55 | 5.26 | 81.39 | 82.28 | 15.56 | ⅡA |
| 1 | 13 | 4.75 | 4.77 | 2.88 | 76.95 | 84.22 | 17.28 | ⅡA |
| 12 | 5.26 | 5.47 | 4.20 | 73.02 | 82.78 | 15.92 | ⅡA |
| 11 | 4.73 | 4.11 | 2.69 | 63.01 | 84.61 | 15.67 | ⅡB |
), ArticleFig(id=1322942113004003375, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=CN, label=表5, caption=
丁山区块中2区、中3区不同开发小层地质参数统计
, figureFileSmall=null, figureFileBig=null, tableContent=
地质 小层 | 开发 小层 | 孔隙度/ % | 含气量/ (m3/t) | TOC含量/ % | 脆性矿物 含量/% | 最小水平主应力/MPa | 水平两向 应力差/MPa | 综合 评价 |
|---|
| 6 | 6 | 4.13 | 2.85 | 1.38 | 57.45 | 85.33 | 16.06 | Ⅲ |
| 5 | 5 | 4.18 | 2.99 | 1.52 | 58.93 | 85.11 | 16.28 | Ⅲ |
| 4 | 4 | 4.41 | 3.37 | 2.22 | 59.18 | 84.89 | 14.78 | ⅡB |
| 3 | 33 | 4.70 | 3.94 | 2.66 | 63.07 | 85.50 | 14.89 | ⅡB |
| 32 | 5.09 | 4.82 | 3.33 | 68.79 | 83.17 | 14.61 | ⅡA |
| 31 | 5.35 | 5.62 | 4.04 | 74.80 | 82.76 | 14.67 | ⅡA |
| 2 | 2 | 5.62 | 6.55 | 5.26 | 81.39 | 82.28 | 15.56 | ⅡA |
| 1 | 13 | 4.75 | 4.77 | 2.88 | 76.95 | 84.22 | 17.28 | ⅡA |
| 12 | 5.26 | 5.47 | 4.20 | 73.02 | 82.78 | 15.92 | ⅡA |
| 11 | 4.73 | 4.11 | 2.69 | 63.01 | 84.61 | 15.67 | ⅡB |
), ArticleFig(id=1322942113100472368, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=EN, label=Table 6, caption=
Well trajectory orientation deployment patterns in zone 2 and zone 3 of Dingshan block, figureFileSmall=null, figureFileBig=null, tableContent=
| 分区 | 断层 | 地应力方位/(°) | 井轨迹部署原则 | 井轨迹方位/(°) | 部署模式 |
|---|
| 级别 | 走向 |
|---|
| 中2区 | C级、D级 | 北东向 | 70~95 | D级及以下断层(含断裂不发育),井轨迹方向垂直于最大水平主应力;C级及以上断层,井轨迹方向顺断层部署与最大主应力夹角应尽量大于60° | 5~34 | |
| 中3区 | B级、C级 | 北东向—近南北向 | 85~95 | 10~45 | |
), ArticleFig(id=1322942113175969841, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=CN, label=表6, caption=
丁山区块中2区、中3区井轨迹方向部署模式
, figureFileSmall=null, figureFileBig=null, tableContent=
| 分区 | 断层 | 地应力方位/(°) | 井轨迹部署原则 | 井轨迹方位/(°) | 部署模式 |
|---|
| 级别 | 走向 |
|---|
| 中2区 | C级、D级 | 北东向 | 70~95 | D级及以下断层(含断裂不发育),井轨迹方向垂直于最大水平主应力;C级及以上断层,井轨迹方向顺断层部署与最大主应力夹角应尽量大于60° | 5~34 | |
| 中3区 | B级、C级 | 北东向—近南北向 | 85~95 | 10~45 | |
), ArticleFig(id=1322942113477959730, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=EN, label=Table 7, caption=
Parameters of EDFM numerical simulation models for well groups in zone 2 and zone 3, figureFileSmall=null, figureFileBig=null, tableContent=
| 井组 | 大小/ (m×m) | 网格 | 储量丰度/(108 m3/km2) | 地层压力/ MPa | 渗透率/10-3 μm2 |
|---|
| 基质 | SRV |
|---|
| X5 | 2 240×2 580 | 112×129×11 | 5.9 | 56.4 | 10-5 | 10-2~10-4 |
| X3 | 2 010×1 600 | 105×80×9 | 4.1 | 28.5 | 10-5 | 10-2~10-4 |
), ArticleFig(id=1322942113587011635, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=CN, label=表7, caption=
中2区、中3区EDFM井组数值模拟模型参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 井组 | 大小/ (m×m) | 网格 | 储量丰度/(108 m3/km2) | 地层压力/ MPa | 渗透率/10-3 μm2 |
|---|
| 基质 | SRV |
|---|
| X5 | 2 240×2 580 | 112×129×11 | 5.9 | 56.4 | 10-5 | 10-2~10-4 |
| X3 | 2 010×1 600 | 105×80×9 | 4.1 | 28.5 | 10-5 | 10-2~10-4 |
), ArticleFig(id=1322942115407339573, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=EN, label=Table 8, caption=
Differentiated development technical strategies for zone 2 and zone 3 in Dingshan block, figureFileSmall=null, figureFileBig=null, tableContent=
| 研究区 | 靶窗位置 | 水平井参数 |
|---|
| 长度/m | 方位/(°) | 井距/m |
|---|
| 中2区 | 12—32小层 | 1 900 | 5~34(与最大主应力夹角61~85) | 350(裂缝发育区400~450) |
| 中3区 | 12—32小层 | 2 100 | 10~45(与最大主应力夹角60~80) | 300(裂缝发育区350~400) |
), ArticleFig(id=1322942115533168694, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942085350958000, language=CN, label=表8, caption=
丁山区块中2、中3区差异化开发技术政策
, figureFileSmall=null, figureFileBig=null, tableContent=
| 研究区 | 靶窗位置 | 水平井参数 |
|---|
| 长度/m | 方位/(°) | 井距/m |
|---|
| 中2区 | 12—32小层 | 1 900 | 5~34(与最大主应力夹角61~85) | 350(裂缝发育区400~450) |
| 中3区 | 12—32小层 | 2 100 | 10~45(与最大主应力夹角60~80) | 300(裂缝发育区350~400) |
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