成都理工大学学报（自然科学版）Issue(2)：188-195,8.DOI:10.3969/j.issn.1671-9727.2015.02.06
川西梓潼凹陷中下侏罗统气藏成藏条件
Research on accumulation conditions of Lower-Middle Jurassic gas reservoir of Zitong depression in West Sichuan,China
摘要
Abstract
This paper approaches the hydrocarbon accumulation conditions of the Lower-Middle Jurassic gas reservoir in the Zitong depression of west Sichuan to provide the basis for predicting regional gas pools.Through statistics and analysis of the main controlling factors of hydrocarbon accumulation of the gas reservoir,this paper points out that the shale bed in Member 5 of Upper Triassic Xujiahe Formation is the main source rock of the Lower-Middle Jurassic gas reservoir.The dark argillaceous rock of Lower Jurassic is weak in the ability of generating hydrocarbon.The Jurassic reservoir overall has low porosity and low permeability,the structural-lithologic traps are main conditions for gas accumulation,and there is a NE-SW pinch-out line in the Mianyang-Jiangyou-Jiange area which is easy to form the super pinch-out lithologic gas reservoir.The reservoir with high porosity and high permeability and the earliest trap formed on uplift are main controlling factors for hydrocarbon accumulation.The Jurassic reservoirs in the low amplitude uplifted area have favorable conditions for hydrocarbon accumulation,so their exploration potential is large.关键词
梓潼凹陷/中下侏罗统/成藏条件/勘探前景Key words
Zitong depression/Jurassic/accumulation condition/reservoir/exploration prospect分类
能源科技引用本文复制引用
董军,蔡李梅,何秀彬,李斌,张帆,王浩宇,谢佳彤..川西梓潼凹陷中下侏罗统气藏成藏条件[J].成都理工大学学报（自然科学版）,2015,(2):188-195,8.基金项目
中国石化勘探先导项目和“构造与油气资源”教育部重点实验室基金（TPR-2013-16）联合资助项目。 （）
