摘要
通过对四川川西大兴西、平落坝、白马庙、孝泉—新场、洛带及观音寺、苏码头、天皇庙等气藏和含气构造成藏条件的综合分析研究 ,指出古隆起、断裂分布、烃源岩分布、储层分布和保存条件是侏罗系成藏的主控因素。按烃源、气藏压力大小、油源断裂的有无 ,生烃作用、构造改造作用的大小及其配置关系 ,将侏罗系浅层气藏划分为高压原生气藏、浅层次生气藏、中—低压断裂调整型气藏和侏罗系自生储气藏四类。指出蓬莱镇组、沙溪庙组为浅层气富集的有利层系。通过生烃、储层、保存、圈闭条件及各成藏因素之间的配置关系综合研究表明 :大兴鼻隆、孝泉—丰谷、灌口—平落坝、洛带—新都、苏码头—盐井沟。
By analyzing and studying on the pool formation factors of the gas fields or gas enriching traps, such as west of Daxing, Pingluoba, Baimamiao, Xiaoquan-Xinchang, Guanyinsi and Sanhuangmiao etc., the author points out that ancient tectonic upheaves, the distribution of faults, sources rocks and reservoirs and conservation are the critical factors for pool formation of Jurassic system. According to the source rocks, pressure of reservoirs, tectonic and faulting conditions, the Jurassic shallow gas pools are classified as high-pressure original pools, secondary pools, medium-low pressure pools and source-reservoir by itself pools. Through research on generating, reservoir, conservation, trap conditions and different relationships, it is concluded that Penglaizhen and Shaximiao formations are promising Jurassic reservoirs in western Sichuan Basin and there are good prospects for Jurassic gas exploration in such areas as Daxing nose, Xiaoquan-Fenggu, Guankou-Pingluoba, Luodai-Xindu, Sumatou-Yanjinggou and Longquan Mountain.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
2001年第4期20-23,共4页
Natural Gas Industry
基金
"九五"攻关项目 99- 110- 0 2- 0 3专题部分成果
关键词
川西
侏罗系
成藏因素
分类
气藏
天然气
Western Sichuan, Jurassic, Pool formation, Factors, Types
