中国石油大学学报（自然科学版）2011，Vol.35Issue(6)：21-27,35,8.DOI:10.3969/j.issn.1673-5005.2011.06.004
塔里木盆地库车坳陷依南2气藏类型的判别
Type discrimination of Yinan 2 gas reservoir in Kuqa depression, Tarim Basin
摘要
Abstract
According to forward and retrieval comprehensive analysis on the data of carbon isotope, pyrolysis of source rocks, reservoir analysis, pressure of gas reservoir, fluid inclusions of Yinan 2 gas reservoir in Kuqa depression, Tarim Basin, the genetic type of this gas reservoir was discriminated. The results show that the densification of sandstone reservoirs of Jurassic Ahe formation in Yinan 2 gas reservoir took place about 11 Ma ago, while hydrocarbon expulsion peak of source rocks in this reservoir dated from 5 Ma ago. Reservoir densification is earlier than massive hydrocarbon expulsion, and thus this reservoir is a deep-basin gas field with densification first and then reservoir formation. Yinan 2 gas reservoir has geological characteristics of gas-water inversion and relatively negative pressure, of which the dynamic mechanism of reservoir formation is shown as piston-type gas-drive water filling under the expansive force of gas molecular. Yinan 2 gas reservoir is a large-scale deep-basin gas reservoir in the early stage, while adjusts and modifies later, which leads to the gas-bearing range controlled by south-north fault zones.关键词
石油地质/地质调查/成因类型/依南2气藏/砂岩/深盆气藏Key words
petroleum geology/geological surveys/genetic type/Yinan 2 gas reservoir/sandstone/deep-basin gas reservoir分类
能源科技引用本文复制引用
邢恩袁,庞雄奇,肖中尧,张宝收,姜振学,李峰,郭继刚,马中振..塔里木盆地库车坳陷依南2气藏类型的判别[J].中国石油大学学报（自然科学版）,2011,35(6):21-27,35,8.基金项目
国家"973"计划项目(2006CB202300) （2006CB202300）
国家自然科学基金项目(40802029) （40802029）
