ANALYSES OF HYDROCARBON ACCUMULATION CHARACTERISTICS IN THE EAST OF MANJIAER REGION, THE TARIM BASIN
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摘要: 塔里木盆地满东地区的成藏物质基础、成藏事件和成藏模式分析表明,该地区除发育寒武系—中下奥陶统高有机质丰度的干酪根型烃源岩外,还发育以古油藏形式为主的"再生烃源",油气藏的形成可分为3个发展阶段:1)中加里东期的古隆起发育、古油气藏形成阶段;2)晚加里东期—印支期的古隆起隆升剥蚀、古油藏破坏并调整阶段;3)晚燕山期—喜山期的上构造层褶皱断裂发育、圈闭形成、以古油藏裂解气充注为主的阶段。晚燕山期—喜山期可能是该区最具有效规模的成藏期,并以形成气藏为主。Abstract: Based on analyses of accumulation material basement,event and mode in the east of Manjiaer region of the Tarim Basin,it has been found out that,besides kerogen source rocks rich in carbonate from Cambrian to Middle—Lower Ordovician,there also exist regenerated hydrocarbon source rocks represented by ancient reservoirs.Formation of accumulations has experienced 3 stages:1) palaeohighs generation and accumulations formation in Middle Caledonian;2) palaeohighs uprising and erosion as well as accumulations destruction and adjustment from Late Caledonian to Indosinian;3) upper structural folds and traps formation as well as cracking gas infilling from Late Yanshanian to Himalayan.The 3rd stage is the main accumulation stage and mainly forms gas pools.
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[1] 戴金星.中国天然气地质学(卷一)[M].北京:石油工业出版社,1992. [2] Littke R,Krooss B M,Idic E,et al.Molecular nitrogen in natural gas accumulations:generation from sedimentary organic matter at higher temperatures[J].AAPG Bulletin,1995,79(3):410~430. [3] Krooss B M,Muller B.Generation of nitrogen and methane from sedimentary organic matter:implication on the dynamics of natural gas accumulations[J].Chemical Geology,1995,126(3-4):291~318. [4] 郭建军,陈践发,朱雷等.塔里木盆地塔中天然气的地球化学特征及成因[J].石油实验地质,2007,29(6):577~582. [5] 陈世加,赵孟军.塔里木盆地中高氮天然气的成因及其与天然气聚集的关系[J].沉积学报,2000,18(4):615~618,623. [6] 谈迎,刘德良,李振生.松辽盆地北部二氧化碳气藏成因地球化学研究[J].石油实验地质,2006,28(5):480~483. [7] 翟晓先,顾忆,钱一雄等.塔里木盆地塔深1井寒武系油气地球化学特征[J].石油实验地质,2007,29(4):329~333. [8] 邵志兵,李慧莉,张克银.塔里木盆地孔雀河斜坡区油气成藏初步分析[J].中国西部油气地质,2005,1(2):149~152. [9] Ro oney M A,Claypool G E,Chung H M.Modeling thermogenic gas generation using carbon isotope ratios of natural gas hydrocarbons[J].Chemical Geology,1995,126(3-4):219~232. [10] Prinzhofer A A,Huc A Y.Genetic and post-genetic molecular and isotopic fractionations in natural gases[J].Chemical Geo-logy,1995,126(3-4):281~290. [11] 陈世加,马力宁.干酪根裂解气和原油裂解气的成因判识方法[J].石油实验地质,2002,24(4):364~366. [12] 孙玉善,金英爱,顾乔元.塔东2井古油藏成藏期分析[J].石油勘探与开发,2003,30(5):31~33. [13] 杨铭,汤达祯,邢卫新等.塔里木盆地孔雀河古斜坡成藏条件新认识[J].石油实验地质,2007,29(3):275~279. [14] 时保宏,张艳,赵靖舟等.塔里木盆地英吉苏凹陷天然气成藏主控因素分析[J].石油实验地质,2007,29(5):482~485
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