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地质力学学报:2017,23(4):540-547
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四川盆地及周缘龙马溪组页岩产气效果影响因素
(1.中国地质调查局油气资源调查中心, 北京 100083;2.中国地质调查局非常规油气地质实验室, 北京 100029)
FACTORS INFLUENCING GAS PRODUCTION EFFECTIVENESS OF LONGMAXI FORMATION SHALE IN SICHUAN BASIN AND ADJACENT AREAS
(1.Oil & Gas Survey, China Geological Survey, Beijing 100083, China;2.Unconventional oil and gas geology laboratory, China Geological Survey, Beijing 100029, China)
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投稿时间:2016-06-14    
中文摘要: 我国在四川盆地及周缘下志留统龙马溪组页岩气勘探开发中已取得一些重要发现和突破。JY1HF井、彭页1Hf、DY2HF井、南页1HF、龙参2井、保页1井等一系列针对龙马溪组的钻井及压裂改造都展现了我国南方龙马溪组页岩具备良好的勘探开发前景。本文对比分析了四川盆地及周缘多口页岩气井压后产量与储层地质条件、储层物性、地应力、构造保存及压裂施工规模等影响页岩气产能参数的相关性,总结提出了影响页岩气勘探开发效果的主要控制因素为优质页岩厚度、含气性、脆性矿物含量、孔隙度、地层压力系数和水平应力差异系数,为今后我国南方海相页岩气的高效勘探开发提供了重要的借鉴和指导。
Abstract:Many important findings and breakthroughs concerning the exploration and development of Lower Silurian Longmaxi shale gas in Sichuan basin and adjacent areas have been made. A series of drilling wells and fracturing reconstructions, such as Well JY1HF, Pengye1Hf, Well DY2HF, Nanye1HF, Well Longcan2 and Well Baoye1, all show a good prospect of Longmaxi shale gas in exploration and development. Correlational analysis were made between relevant parameters and post-fracture production in several shale gas wells in Sichuan Basin and adjacent areas, such as reservoir geological condition, reservoir physical property, in-situ stress,structure preservation, construction scale of fracturing and so on. It is concluded that the main controlling factors affecting the exploration and development of shale gas are thickness of high quality shales, gas-bearing properties, brittle mineral content, porosity, formation pressure coefficient and horizontal stress difference coefficient, which provides important reference and guidance for the efficient exploration and development of marine shale gas in the future.
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基金项目:国家科技重大专项项目(2016ZX05034);页岩气招标区块勘查跟踪评价项目(12120114054101);湖北秭归-长阳页岩气有利区战略调查项目(DD20179623)。
引用文本:
王玉芳,翟刚毅,王劲铸,等,2017.四川盆地及周缘龙马溪组页岩产气效果影响因素[J].地质力学学报,23(4):540-547.DOI:
WANG Yufang,ZHAI Gangyi,WANG Jinzhu,et al,2017.FACTORS INFLUENCING GAS PRODUCTION EFFECTIVENESS OF LONGMAXI FORMATION SHALE IN SICHUAN BASIN AND ADJACENT AREAS[J].Journal of Geomechanics,23(4):540-547.DOI:

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