再议四川盆地西部坳陷深盆气

叶军

doi:10.11781/sysydz200802109

再议四川盆地西部坳陷深盆气

doi: 10.11781/sysydz200802109

叶军

中国石油化工股份有限公司, 西南油气分公司, 成都, 610016

详细信息

作者简介:
叶军(1955- ),女,教授级高级工程师,主要从事油气地质研究.E-mail:yejun1155@163.com.

中图分类号: TE122
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出版历程
- 收稿日期: 2007-12-18
- 修回日期: 2008-03-18
- 刊出日期: 2008-03-28

RECONSIDERATION OF DEEP BASIN GAS IN THE WESTERN SICHUAN DEPRESSION OF THE SICHUAN BASIN

Ye Jun

Southwestern Branch Company, SINOPEC, Chengdu, Sichuan 610016, China

摘要

摘要: 四川盆地西部坳陷(简称川西坳陷),在盆地类型、烃源岩性质、源—储组合关系、储层致密等方面具备深盆气成藏条件。但川西坳陷是一个多期构造作用形成的叠合盆地,上三叠统须家河组大量排烃作用发生在储层致密化之前,天然气主要在水动力和浮力作用下运聚成藏,在成藏机理上与深盆气有本质差异。上三叠统同一套储层在区域上不具气水倒置关系,天然气聚集带特征明显,主要受燕山期和印支期古隆起控制,气水分布规律与深盆气大面积饱含气不同,其最高单井日水产量可达1000m³以上。川西上三叠统须家河组天然气现今气藏类型主要以复合圈闭为主,含气丰度和地层水分布受圈闭内的裂缝及成岩储渗体控制,没有统一的气水界面。须4气藏可能是动态散失破坏的残余气藏,储量损失部分被地层水占据,含水丰度普遍较高。川西上三叠统须家河组是常规机理成藏,经过了多期构造运动作用的叠加—调整—改造后,成为具有非常规气水分布特征的天然气勘探领域,不属于深盆气范畴。
- 成藏条件 /
- 气水分布 /
- 深盆气 /
- 川西坳陷 /
- 四川盆地
Abstract: The Western Sichuan Depression of the Sichuan Basin is qualified for deep basin gas accumulation due to basin types,hydrocarbon source rock characteristics,reservoir-source combination and reservoir tightness.However,the Western Sichuan Depression is a combined basin influenced by stages of tectonic movements.Mass charges of hydrocarbon of the Xujiahe Formation of the Upper Triassic take place before reservoir tightening.Natural gas migrates under hydrodynamic and buoyancy effects,which is different from deep basin gas in accumulation mechanisms.Inversion of gas and water cannot be found in the same reservoir of the Upper Triassic.Natural gas is zoned obviously,mainly controlled by the Yanshanian and Indosinian uplifts.Distribution of gas and water is also different from deep basin gas.Water product of single well may reach 1000m³/d.Present accumulation types of natural gas of the Xujiahe Formation are mainly combination traps.Gas content and water distribution are controlled by fractures in traps and diagenetic reservoir-leaking bodies.The Xu4 reservoir is probably a residual reservoir,partially filled with water.The Xujiahe Formation of the Upper Triassic in the Western Sichuan Depre-ssion is accumulated conventionally,yet deformed by stages of tectonic movements.Though it is characterized by abnormal gas and water distribution,it does not belong to deep basin gas.
- accumulation conditions /
- gas and water distribution /
- deep basin gas the Western Sichuan Depression /
- the Sichuan Basin /

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参考文献(21)

[1]	Masters J A.Deep basin gas trap,westen Canada[J].AAPG Bulletin,1979,63(2):152～181
[2]	王涛.中国深盆气田[M].北京:石油工业出版社,2002.1～6,242～254,279
[3]	张金亮,常向春.深盆气地质理论及应用[M].北京:地质出版社,2002.4～22
[4]	Law B E.Basin-centered gas evaluated in Dnieper-Donets basin,Donbas foldbelt,Ukraine[J].Oil and Gas Journal,1998,96(47):74～78
[5]	胡文海,陈冬晴.美国油气田分布规律和勘探经验[M].北京:石油工业出版社,1995.361～363
[6]	张金川,薛会,卞昌蓉等.中国非常规天然气勘探雏议[J].天然气工业,2006,26(12):53～56
[7]	周兴熙.封存箱辨义及主要类型[J].石油实验地质,2006,28(5):424～429
[8]	宋岩,洪峰.四川盆地川西坳陷深盆气地质条件分析[J].石油勘探与开发,2001,28(2):11～14
[9]	金之钧,张一伟,王捷等.油气成藏机理与分布规律[M].北京:石油工业出版社,2003.247～253
[10]	洪峰,夏新宇.从异常压力和气水分布特征看川西坳陷深盆气[J].天然气工业,2006,26(增刊A辑):37～39
[11]	牛善政,杨跃明.川西北区块上三叠统须五段气藏深盆气特征[J].天然气工业,2001,22(2):6～10
[12]	张金亮,常向春,王世谦.四川盆地上三叠统深盆气研究[J].石油学报,2002,23(3):321～327
[13]	何鲤,刘莉萍,罗潇等.川西龙门山推覆构造特征及有利油气勘探区块预测[J].石油实验地质,2007,29(3):247～252
[14]	杨克明.川西坳陷须家河组天然气成藏模式探讨[J].石油与天然气地质,2006,27(6):786～792
[15]	叶军.川西坳陷的天然气是深盆气吗?[J].天然气工业,2003,23(增刊):1～5
[16]	郭正吾,邓康龄,韩永辉等.四川盆地形成与演化[M].北京:石油工业出版社,1996.117～119
[17]	杨克明,叶军,吕正祥.川西坳陷上三叠统成藏年代学特征[J].石油与天然气地质,2005,26(2):208～213
[18]	曹烈,周兴毅,邓永富.川西坳陷天然气运移模拟研究[J].矿物岩石,2000,20(3):347～351
[19]	曹烈,安凤山,王信.川西坳陷须家河组气藏与古构造关系[J].石油与天然气地质,2005,26(2):224～229
[20]	杨克明,叶军,吕正祥.川西坳陷上三叠统须家河组天然气分布及成藏特征[J].石油与天然气地质,2004,25(5):501～505
[21]	唐艳,叶军.轻烃指纹参数在川西坳陷天然气成藏研究中的应用[J].油气地质与采收率,2006,8(6):7～21