四川盆地元坝—通南巴地区须家河组致密砂岩封隔型超压系统压力结构特征

宋钰; 张莉; 罗丁文; 杨烁; 郝芳; 邹华耀

doi:10.11781/sysydz201805613

四川盆地元坝—通南巴地区须家河组致密砂岩封隔型超压系统压力结构特征

doi: 10.11781/sysydz201805613

宋钰^1,2,
张莉^1,2,
罗丁文^1,2,
杨烁^1,2,
郝芳³,
邹华耀^1,2, ,

1. 中国石油大学(北京) 油气资源与探测国家重点实验室, 北京 102249;
2. 中国石油大学(北京) 地球科学学院, 北京 102249;
3. 中国石油大学(华东), 山东东营 257061

基金项目:

国家自然科学基金项目（41472118和41690134）资助。

详细信息

作者简介:
宋钰(1993-),女,硕士研究生,从事油气成藏机理研究。E-mail:songyuashia@163.com。

通讯作者:
邹华耀(1963-),男,教授,博士生导师,从事油气成藏机理与分布规律教学与研究工作。E-mail:huayaozou@cup.edu.cn。

中图分类号: TE122.3
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出版历程
- 收稿日期: 2018-01-13
- 修回日期: 2018-07-19
- 刊出日期: 2018-09-28

Characteristics of overpressure regime in compartmentalized overpressured system within tight sandstones, Xujiahe Formation, Yuanba-Tongnanba areas, Sichuan Basin

SONG Yu^1,2,
ZHANG Li^1,2,
LUO Dingwen^1,2,
YANG Shuo^1,2,
HAO Fang³,
ZOU Huayao^{1,2
, ,}

1. State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China;
2. College of Geosciences, China University of Petroleum, Beijing 102249, China;
3. China University of Petroleum, Dongying, Shandong 257061, China

摘要

摘要: 致密砂岩气层系通常发育封隔型超压系统，但是封隔型超压系统压力结构的实例研究少见报道。四川盆地北部元坝—通南巴地区须家河组致密砂岩层系发育典型的封隔型超压系统。基于丰富的实测压力数据，勾画了致密砂岩封隔型超压系统的压力结构轮廓；应用烃源岩与致密砂岩地质、地球化学以及构造演化分析资料，阐述了封隔型超压系统压力结构的影响因素。研究结果表明，须家河组致密砂岩封隔型超压系统的压力结构表现为各砂岩层段以及同一砂岩层段纵横向上压力系统彼此封隔不连通；呈现了多尺度、多层次的封隔型超压系统的特征。烃源岩生烃强度与超压发育幅度成正比，天然气充注是超压发育的主要动力机制；砂岩整体致密化形成了超压系统的背景，区域性泥岩和泥岩间层以及致密砂岩层系内部超致密砂岩层段的发育分布，构成了多尺度、多层次封隔型超压系统的总体格架。
- 封隔型超压系统 /
- 超压结构 /
- 生气强度 /
- (超)致密砂岩 /
- 须家河组 /
- 元坝—通南巴地区 /
- 四川盆地
Abstract: Compartmentalized overpressured systems are commonly developed in tight gas sandstones. However, studies about the characteristics of overpressure regime in compartmentalized overpressured system are rarely reported in the literature. The Upper Triassic Xujiahe tight sandstone formation in the Yuanba-Tongnanba area, northeastern Sichuan Basin, is a typical compartmentalized overpressured system. In this study, an overpressure regime in a compartmentalized overpressured system was delineated based on abundant measured pressure data, and the factors controlling overpressure regime in the compartmentalized overpressured system were clarified by comprehensively analyzing the geologic and geochemical data and the structural evolution of source rocks and tight sandstones. Results show that the overpressure regime in the compartmentalized overpressured system within tight sandstones of the Xujiahe Formation were separated from each other in both vertical and horizontal distribution of sandstone intervals, or even in the same intervals, exhibiting multi-scale and multi-level features for the compartmentalized overpressured system. Natural gas filling is a primary dynamic cause for overpressure generation, and its magnitude is directly related to gas generation intensity. The generally densified sandstones formed the background of overpressure system. Locally distributed mudstones and mudstone interbeds, and highly densified sandstone interbeds formed a multi-scale and multi-level framework of the overpressure system.
- compartmentalized overpressured system /
- overpressure regime /
- gas generation intensity /
- (highly-) tight sandstone /
- Xujiahe Formation /
- Yuanba-Tongnanba area /
- Sichuan Basin

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参考文献(23)

[1]	张启明,董伟良.中国含油气盆地中的超压体系[J].石油学报,2000,16(6):1-11. ZHANG Qiming,DONG Weiliang.Overpressure system of hydrocarbon-bearing basins in China[J].Acta Petrolei Sinica,2000,16(6):1-11.
[2]	查明,曲江秀,张卫海.异常高压与油气成藏机理[J].石油勘探与开发,2002,29(1):19-23. ZHA Ming,QU Jiangxiu,ZHANG Weihai.The relationship between overpressure and reservoir forming mechanism[J].Petroleum Exploration and Development,2002,29(1):19-23.
[3]	郝芳,邹华耀,倪建华,等.沉积盆地超压系统演化与深层油气成藏条件[J].地球科学(中国地质大学学报),2002,27(5):610-615. HAO Fang,ZOU Huayao,NI Jianhua,et al.Evolution of overpressured systems in sedimentary basins and conditions for deep oil/gas accumulation[J].Earth Science (Journal of China University of Geosciences),2002,27(5):610-615.
[4]	郝芳,董伟良.沉积盆地超压系统演化、流体流动与成藏机理[J].地球科学进展,2001,16(1):79-85. HAO Fang,DONG Weiliang.Evolution of fluid flow and petroleum accumulation in overpressured systems in sedimentary basins[J].Advance in Earth Sciences,2001,16(1):79-85.
[5]	HUNT J M.Generation and migration of petroleum from abnormally pressured fluid compartments[J].AAPG Bulletin,1990,74(1):1-12.
[6]	郝芳.超压盆地生烃作用动力学与油气成藏机理[M].北京:科学出版社,2005:22-182. HAO Fang.Kinetics of hydrocarbon generation and mechanism of petroleum accumulation in overpressured basins[M].Beijing:Science Press,2005:22-182.
[7]	邹华耀,郝芳,张伯桥,等.准噶尔盆地中部超压封闭层的岩石学特征与封闭机理[J].岩石学报,2006,22(8):2213-2219. ZOU Huayao,HAO Fang,ZHANG Boqiao,et al.Petrologic feature and sealing mechanism for the pressure seal in the center of Junggar Basin[J].Acta Petrologica Sinica,2006,22(8):2213-2219.
[8]	OSBORNE M J,SWARBRICK R E.Mechanisms for generating overpressure in sedimentary basins:a reevaluation[J].AAPG Bulletin,1997,81(6):1023-1041.
[9]	BRADLEY J S,POWLEY D E.Pressure compartments in sedimentary basins:a review[M]//ORTOLEVA P J.Basin Compartment and Seal.Tulsa:AAPG,1994:3-26.
[10]	ORTOLEVA P J.Basin compartmentation:definition and mechanisms[M]//ORTOLEVA P J.Basin Compartment and Seal.Tulsa:AAPG,1994:35-51.
[11]	赵文智,王红军,徐春春,等.川中地区须家河组天然气藏大范围成藏机理与富集条件[J].石油勘探与开发,2010,37(2):146-157. ZHAO Wenzhi,WANG Hongjun,XU Chunchun,et al.Reservoir-forming mechanism and enrichment conditions of the extensive Xujiahe Formation gas reservoirs,central Sichuan Basin[J].Petroleum Exploration and Development,2010,37(2):146-157.
[12]	李林涛,庞雄奇,陈冬霞,等.川西坳陷中段上三叠统须家河组超压分布特征与主控因素[C]//第五届油气成藏机理与油气资源评价国际学术研讨会论文集.北京:中国石油学会,2009:10. LI Lintao,PANG Xiongqi,CHEN Dongxia,et al.The distribution and controlling factors of overpressure of Upper Triassic Xujiahe Formation in the middle segment of the West Sichuan Depression[C]//Proceedings of the 5th International Symposium on Hydrocarbon Accumulation Mechanism and Petroleum Resource Evaluation.Beijing:Chinese Petroleum Society,2009:10.
[13]	李林涛,邓克,张建华.川西坳陷中段上三叠统须家河组致密气藏超压特征与组合类型划分[J].特种油气藏,2010,17(3):19-21. LI Lintao,DENG Ke,ZHANG Jianhua.Overpressure characteristics and classification of the tight gas reservoirs in Upper Triassic Xujiahe Formation in the middle section of West Sichuan Depression,China[J].Special Oil and Gas Reservoirs,2010,17(3):19-21.
[14]	李军,邹华耀,张国常,等.川东北地区须家河组致密砂岩气藏异常高压成因[J].吉林大学学报(地球科学版),2012,42(3):624-633. LI Jun,ZOU Huayao,ZHANG Guochang,et al.Origins of overpressure tight gas reservoirs in the Xujiahe Formation,northeas-tern Sichuan Basin[J].Journal of Jilin University (Earth Science Edition),2012,42(3):624-633.
[15]	郝国丽,柳广弟,谢增业,等.川中-川南地区上三叠统须家河组气藏异常压力分布及成因[J].世界地质,2010,29(2):298-304. HAO Guoli,LIU Guangdi,XIE Zengye,et al.Distribution and origin of abnormal pressure in Upper Triassic Xujiahe Formation reservoir in central and southern Sichuan[J].Global Geology,2010,29(2):298-304.
[16]	王震亮,孙明亮,张立宽,等.川西地区须家河组异常压力演化与天然气成藏模式[J].地球科学(中国地质大学学报),2004,29(4):433-439. WANG Zhenliang,SUN Mingliang,ZHANG Likuan,et al.Evolution of abnormal pressure and model of gas accumulation in Xujiahe Formation,western Sichuan Basin[J].Earth Science:Journal of China University of Geosciences,2004,29(4):433-439.
[17]	张莉.元坝地区须家河组致密砂岩孔隙发育带分布预测[D].北京:中国石油大学(北京),2017. ZHANG Li.Prediction of pore development zones in tight-gas sandstones from Upper Triassic Xujiahe Formation,Yuanba area[D].Beijing:China University of Petroleum,Beijing,2017.
[18]	张元春.川东北二叠-三叠系构造应力场演化与油气运移、聚集和保存[D].北京:中国石油大学(北京),2010. ZHANG Yuanchun.Accumulation and preservation of oil and gas of Permian and Triassic formation in northeast of Sichuan Basin[D].Beijing:China University of Petroleum,Beijing,2010.
[19]	李军.川东北陆相致密砂岩天然气成藏机理研究[D].北京:中国石油大学(北京),2012. LI Jun.Accumulation mechanism of gases in continental tight sandstone in northeast Sichuan Basin[D].Beijing:China University of Petroleum,Beijing,2012.
[20]	邹华耀,郝芳,蔡勋育.沉积盆地异常低压与低压油气藏成藏机理综述[J].地质科技情报,2003,22(2):45-50. ZOU Huayao,HAO Fang,CAI Xunyu.Summarization of subnormal pressures and accumulation mechanisms of subnormally pressured petroleum reservoirs[J].Geological Science and Technology Information,2003,22(2):45-50.
[21]	包友书.构造抬升剥蚀与异常压力形成[J].石油与天然气地质,2009,30(6):684-688. BAO Youshu.Relationship between tectonic uplifting & erosion and formation of abnormal pressure[J].Oil & Gas Geology,2009,30(6):684-688.
[22]	夏新宇,宋岩.沉降及抬升过程中温度对流体压力的影响[J].石油勘探与开发,2001,28(3):8-11. XIA Xinyu,SONG Yan.Temperature effects on geopressure during deposition and erosion[J].Petroleum Exploration and Development,2001,28(3):8-11.
[23]	LIU Shugen,DENG Bin,LI Zhiwu,et al.Architecture of basin-mountain systems and their influences on gas distribution:a case study from the Sichuan Basin,South China[J].Journal of Asian Earth Sciences,2012,47:204-215.