川西叠覆型致密砂岩气区地质特征

杨克明; 朱宏权

doi:10.11781/sysydz201301001

川西叠覆型致密砂岩气区地质特征

doi: 10.11781/sysydz201301001

杨克明¹,
朱宏权²

1.
中国石化西南油气分公司, 成都 610016
2. 中国石化西南油气分公司勘探开发研究院, 成都 610081

基金项目: "十二五"国家重大专项"大型油气田及煤层气开发" 下属课题 "四川盆地碎屑岩层系大中型油气田形成规律与勘探方向"(2011ZX05002-004)资助。

详细信息

作者简介:
杨克明(1955- ),男,教授级高级工程师,从事油气地质勘探研究。E-mail:xnyqykm@163.com。

中图分类号: TE132.2
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出版历程
- 收稿日期: 2012-09-09
- 修回日期: 2012-12-12
- 刊出日期: 2013-01-28

Geological characteristics of superposed tight sandstone gas-bearing areas in western Sichuan

Yang Keming¹,
Zhu Hongquan²

1.
SINOPEC Southwest Oil & Gas Company, Chengdu, Sichuan 610016, China
2. Exploration and Development Research Institute, SINOPEC Southwest Oil & Gas Company, Chengdu, Sichuan 610081, China

摘要

摘要: 根据川西致密砂岩气藏成藏地质背景、成藏特点和气藏特征,提出了叠覆型致密砂岩气区概念。川西叠覆型致密气区具有叠合性、广覆性、节律性、模糊性和多样性五性特征。叠合性:原型盆地的叠合性、构造形变的叠合性、储层的叠合性、成藏组合的叠合性、气藏的叠合性;广覆性:源岩分布的广覆性、储层分布的广覆性、圈闭分布的广覆性、气藏分布的广覆性;节律性:构造演化的节律性、沉积演化的节律性、运移充注的节律性;模糊性:气水边界的模糊性、圈闭类型的模糊性、储层的非均质性;多样性:烃源的多样性、储集类型的多样性、运移方式的多样性、气藏类型的多样性。川西叠覆型致密砂岩气区总体具有"源、相、位"三元控藏特点。
- 叠覆型 /
- "三元"控藏 /
- 致密砂岩气区 /
- 非常规气藏 /
- 川西
Abstract: Based on the geologic background, reservoir forming features and reservoir characteristics of tight sandstone gas reservoirs in the western Sichuan, the concept of superposed tight sandstone gas-bearing areas has been proposed. The superposed tight sandstone gas-bearing areas in the western Sichuan have the characteristics of superimposition, extensive spread ability, rhythmicity, ambiguity and diversity. Superimposition refers to the superimposed properties of prototype basin, tectonic deformation, reservoir stratum and reservoir forming assemblage. Extensive spread ability refers to the wide distribution features of source rock, reservoir stratum, trap and gas reservoir. Rhythmicity refers to the rhythm properties of structural evolution, sedimentary evolution, migration and infilling. Ambiguity refers to the fuzzy properties of gas-water boundary, trap types and the heterogeneity of reservoir. Diversity refers to the variety of source rocks, reservoir types, migration patterns and gas reservoir types. Generally speaking, the superposed tight sandstone gas-bearing areas in the western Sichuan have the three-elements (source, facies, position) reservoir-controlling characteristics.
- superposed type /
- three-elements reservoir controlling /
- tight sandstone gas-bearing area /
- unconventional gas reservoir /
- western Sichuan

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