涪陵页岩气勘探开发重大突破与启示

doi:10.11743/ogg20150101

摘要/Abstract

摘要：

中国海相页岩气分布领域广，资源丰富，但与北美相比，具有页岩时代老、热演化程度高的特点；同时由于经历多期次的构造改造，具有保存条件和埋深差异大的特殊性。针对这些特点和特殊性，提出了生烃条件、储集条件和保存条件为核心的页岩气“三元富集”理论。以此为指导，中国石化集团公司的页岩气勘探向四川盆地及其近缘聚焦，确定川东南地区下志留统是首选的页岩气勘探突破领域。建立了海相页岩气区带和目标评价方法,优选涪陵焦石坝构造为页岩气突破目标，2012年部署钻探焦页1井，一举发现了中国首个大型页岩气田——焦石坝龙马溪组海相页岩气田。同时，借鉴、集成和研发关键技术，形成了中、浅层海相页岩气钻井技术和大井段分段压裂的海相页岩储层改造技术。在勘探开发一体化的工作思路指导下，通过精细高效的组织管理实现焦石坝大型页岩气田的快速高效开发。

关键词: 三元富集, 勘探开发一体化, 海相地层, 页岩气, 志留系, 焦石坝气田

Abstract:

China marine shale gas field is characterized by wide distribution and richness in resources.But compared with North America, because of suffering multi-stages tectonic reworking, China marine shale is older and more mature, as a result, it is unique in preservation condition and buried depth.Based on these features, the theory of ‘three-element enrichment’, whose cores include the conditions of hydrocarbon generation, reservoir conditions and shale gas preservation conditions, is put forward.On this basis, shale gas exploration is focused on Sichuan Basin and its peripheral regions, and the Lower Silurian of Southeast region of Sichuan Basin is chosen to be the preferred breakthrough field for shale gas exploration by China Petroleum & Chemical Corporation.Shale gas zone and the target evaluation method is set up, and Jiaoshiba Block of Fuling is as the target area.And in 2012, well Jiaoye 1 was drilled, and discovered the first large shale gas field in China, i.e.marine shale gas field of Longmaxi Formation in Jiaoshiba Block.Drilling technologies and multi-stage fracturing technologies were developed for the marine shale with shallow to moderate burial depths.The rapid and highly efficient development of the Jiaohsiba shale gas field was realized through effective management under the guidance of integrated exploration and development.

Key words: three-element enrichment, integrated exploration and development, marine layer, shale gas, Silurian, Jiaoshiba gas field

中图分类号:

TE132.1

王志刚. 涪陵页岩气勘探开发重大突破与启示[J]. 石油与天然气地质, 2015, 36(1): 1-6. doi: 10.11743/ogg20150101 Wang Zhigang. Breakthrough of Fuling shale gas exploration and development and its inspiration[J]. Oil & Gas Geology, 2015, 36(1): 1-6. doi: 10.11743/ogg20150101

参考文献

[1] 《页岩气地质与勘探开发实践丛书》编委会.北美地区页岩气勘探开发新进展[M].北京:石油工业出版社,2009. Editorial Committee of "shale gas geology and exploration and development practice series".New progress of shale gas exploration and development in North American[ M ].Beijing:Petroleum Industry Press,2009.
[2] 李新景,胡素云,程克明.北美裂缝性页岩气勘探开发的启示[J].石油勘探与开发,2007,34(4):392-400. Li Xinjing,Hu Suyun,Cheng Keming.Suggestions from the development of fractured shale gas in North Am erica[ J].Petroleum Exploration and Development,2007,34(4):392-400.
[3] 邹才能,董大忠,王社教,等.中国页岩气形成机理、地质特征及资源潜力[J].石油勘探与开发,2012,37(6):641-653. Zhou Caineng,Dong Dazhong,Wang Shejiao,et al.Geological characteri-stics,formation mechanism and resource potential of shale gas in China[J].Petroleum Exploration and Development,2010,37(6):641-653.
[4] 张金川,姜生玲,唐玄,等.我国页岩气富集类型及资源特点[J].天然气工业,2009,29(12):109-114. Zhang Jinchuan,Jiang Shengling,Tang Xuan,et al.Accumulation types and resources characteristics of shale gas in China[J].Natural Gas Industry,2009,29(12):09-114.
[5] 董大忠,程克明,王玉满,等.中国上扬子区下古生界页岩气形成条件及特征[J].石油与天然气地质,2010,31(3) 289-299. Dong Dazhong,Cheng Keming,Wang Yuman,et al.Forming conditions and characteristics of shale gas in the Lower Paleozoic of the Upper Yangtze region,China[J].Oil & Gas Geology,2010,31(3) 289-299.
[6] 张金川,聂海宽,徐波,等.四川盆地页岩气成藏地质条件[J].天然气工业,2008,28(2):151-156. Zhang Jinchuan,Nie Haikuan,Xu Bo,et al.Geological conditionof shale gas accumulation in Sichuan Basin[J].Natural Gas Industry,2008,28(2):151-156.
[7] 聂海宽,包书景,高波,等.四川盆地及其周缘上奥陶统-下志留统页岩气成藏体系研究[J].石油实验地质,2012,34(2):115-119. Nie Haikuan,Bao Shujing,Gao Bo,et al.Accumulation system for shale gas from Upper Ordovician to Lower Silurian in Sichuan Basin and surrounding areas[J].Petroleum Geology & Experiment,2012,34(2):115-119.
[8] 董大忠,程克明,王世谦等.页岩气资源评价方法及其在四川盆地的应用[J].天然气工业,2009,29(5):33-39. Dong Dazhong,Cheng Keming,Wang Shiqian,et al.An evaluat ion method of shale gas resource and its application in Sichuan Basin[J].Natural Gas Industry,2009,29(5):33-39.
[9] 王俊良,吴先忠,杨金利,等.高压含硫产层水平井旋转地质导向钻井技术实践[J].钻采工艺,2008,31(4):45-48. Wang Junliang,Wu Xianzhong,Yang Jingli,et al.Application of PD X5 in the pay zone with high pressure gradient in MOXI gas field[J].Drilling & Production Technology,2008,31(4):45-48.
[10] 刘继刚.油基钻井液在泌页2HF井三开段的应用[J].科技资讯,2013.10(5):106-107. Liu Jigang.Application of oil-based drilling fluid in third-open section of Qinye horizontal well[J].Science & Technology Information,2013,10(5):106-107.
[11] Curtis J B.Fractured shale-gas systems[J].AAPG Bulletin,2002,86(11):1921-1938.
[12] Montgomery S L,Jarvie D M,Bowker K A,et al.Mississippian Barnett shale,Fort Worth basin,north-central Texas:Gas-shale play with multi-trillion cubic foot potential[J].AAPG Bulletin,2005,89(2):155-175.
[13] 孙海成,汤达祯,蒋廷学.页岩气储层裂缝系统影响产量的数值模拟研究[J].石油钻探技术,2011,39(5):63-67. Sun Haicheng,Tang Dazhen,Jiang Tingxue.Numerical simulation of the impact of fracture system on well production in shale gas reservoir[J].Petroleum Drilling Techniques,2011,39(5):63-67.
[14] Ketter A A,Daniels J,Heinze J R,et al.A field study optimizing completion strategies for fracture initiation in Barnett shale horizontal wells[J].SPE,2006,103232-MS.
[15] Warpinski N R,Mayerhofer M J,Vincent M C,et al.Stimulating unconventional reservoirs:maximizing network growth while optimizing fracture conductivity[J].SPE,2008,114173.