塔里木盆地满东地区油气成藏特征分析

ANALYSES OF HYDROCARBON ACCUMULATION CHARACTERISTICS IN THE EAST OF MANJIAER REGION, THE TARIM BASIN

邵志兵 白森舒

Shao Zhibing Bai Senshu

中国石油化工股份有限公司, 石油勘探开发研究院, 西部分院, 乌鲁木齐, 830011 2. 中国石油化工股份有限公司, 石油勘探开发研究院, 无锡石油地质研究所, 江苏, 无锡, 214151

Western Branch, Research Institute of Petroleum Exploration and Production, SINOPEC, Urumqi, Xinjiang 830011, China 2. Wuxi Research Institute of Petroleum Geology, Research Institute of Petroleum Exploration and Production, SINOPEC, Wuxi, Jiangsu 214151, China

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。

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.

中国石油化工股份有限公司西部新区勘探指挥部项目(XBKY03—03)

https://doi.org/10.11781/sysydz200803227