四川盆地中部须家河组致密砂岩储层流体包裹体研究

严世邦; 胡望水; 李瑞升; 关键; 李涛; 聂晓红

doi:10.3969/j.issn.1673-8926.2008.01.005

岩性油气藏 >

2008 , Vol. 20 >Issue 1: 27 - 32

DOI: https://doi.org/10.3969/j.issn.1673-8926.2008.01.005

油气地质

四川盆地中部须家河组致密砂岩储层流体包裹体研究

严世邦 ,
胡望水 ,
李瑞升 ,
关键 ,
李涛 ,
聂晓红

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成都理工大学沉积地质研究院

李云, 1983 年生, 女, 硕士, 主要从事石油天然气与地质学、沉积学方面的研究。地址: ( 610059) 四川成都理工大学沉积地质研究院。E-mail: liyun-cdut@yahoo.com.cn

网络出版日期: 2008-03-15

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Study on fluid inclusion of tight sandstone reservoir of Upper Triassic Xujiahe Formation in central Sichuan Basin

YAN Shibang ,
HUWangshui ,
LI Ruisheng ,
GUAN Jian ,
LI Tao ,
NIE Xiaohong

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Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059, China

Online published: 2008-03-15

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摘要

流体包裹体岩相学与显微测温分析结果表明, 四川盆地中部上三叠统须家河组( T3x) 致密砂岩储层存在早、晚2 期流体包裹体。早期流体包裹体均一温度较低, 主要为80～100℃; 晚期流体包裹体均一温度较高, 主要为120～140℃, 成熟度较早期也较高。推断四川盆地中部致密砂岩储层的油气充注、运移经历了2 个主要期次, 早期发生于晚侏罗世, 晚期发生于晚白垩世—古近纪初期, 这与油气藏饱和压力得出的结果相符。

关键词： 同生逆冲断裂; 剖面构造; 平面分布; 断距; 生长指数; 红车断裂带

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严世邦 , 胡望水 , 李瑞升 , 关键 , 李涛 , 聂晓红 . 四川盆地中部须家河组致密砂岩储层流体包裹体研究[J]. 岩性油气藏, 2008 , 20(1) : 27 -32 . DOI: 10.3969/j.issn.1673-8926.2008.01.005

Abstract

The petrography and temperature measurement of fluid inclusions are analyzed. The result shows that there exist fluid inclusions of early and late stages in tight sand reservoir of Upper Triassic Xujiahe Formation in central Sichuan Basin. The homogenization temperature of the early stage fluid inclusions is low, mainly of 80 ～100℃, while the homogenization temperature of the late stage fluid inclusions is higher, mainly of 120～140℃. It is concluded that hydrocarbon accumulation and migration in tight sand reservoir in central Sichuan Basin experienced the Late Jurassic and Late Cretaceous-early Paleogene, which is accordant with the result derived from the saturation pressure of hydrocarbon reservoirs.

Key words： contemporaneous thrust faults; structural section; plane distribution; fault throw; growth index; Hongche fault belt

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