摘要
一直以来上三叠统须家河组都是四川盆地川西南部勘探的重点层系之一,历经60余年的勘探开发,该地区已获得1个气田和5个含气构造,过去的研究大都以须二、须四、须六段作为目的层,对须一、须三、须五段并未引起足够重视。为此从烃源岩条件、储层特征、盖层条件、构造发育情况等方面,对川西南部须家河组整体的含油气地质条件及勘探潜力进行分析;在此基础上,将川西南部划分出5个构造区带并进行评价。评价结果表明,邛西区带仍为川西南部油气勘探开发最有利区带,并优选出霖雨场、银天坪、南山、沙坪铁厂作为下一步天然气勘探的有利目标。
The Upper Triassic Xujiahe Formation has been one of the most important exploration strata in southwestern Sichuan Basin. After more than 60-year exploration and development, there are 1 gasfield and 5 gas-bearing structures discovered in this area. However, some past study only focused on the Xujiahe 2, 4, and 6 members whereas a little for other Xujiahe 1, 3,and 5 members. So, in this study, the petroleum geology and exploration potential of overall Xujiahe Formation in this area were analyzed in terms of source rock, reservoir characteristics,caprock, and structural growth. Moreover, five structural areas divided were evaluated. Results show that(1) the Qiongxi area can be taken as the most favorable one; and(2) other favorable targets for next exploration have also been optimally selected, containing four structural belts of Linyuchang, Yintianping, Nanshan, and Shapingtiechang.
出处
《天然气勘探与开发》
2016年第3期11-15,2-3,共5页
Natural Gas Exploration and Development
关键词
川西南部
晚三叠世
含油气地质条件
构造区带
勘探潜力
southwestern Sichuan Basin
Xujiahe Formation
petroleum geology
structural belt
exploration potential
