新疆石油地质

新疆石油地质 ›› 2004, Vol. 25 ›› Issue (4): 369-371.

• 油气勘探 • 上一篇    下一篇

库车依南2井包裹体形成的古温度古压力

刘中云, 王东风, 肖贤明, 刘德汉   

  1. 中国科学院广州地球化学研究所有机地球化学国家重点实验室,广东广州510640
  • 收稿日期:2003-09-17 修回日期:2003-12-16 发布日期:2021-01-06
  • 作者简介:刘中云(1963-),男,湖北沙市人.高级工程师,在读博土研究生,油气地质与地球化学。联系电话:020-85290176
  • 基金资助:
    国家973基金(编号:G1999043308)和国家自然科学基金(批准号:40072043)资助.

The Paleotemperature and Paleopressure Forming Inclusions in Yinan No.2 Well, Kuqa Depression

LIU Zhong-yun, WANG Dong-feng, XIAO Xian-ming, LIU De-han   

  1. State Key Laboratory of Organic Geochemistry, Gnangxhou Institute of Geochemistry, CAS, Guangzhou, Guangdong 510640, China
  • Received:2003-09-17 Revised:2003-12-16 Published:2021-01-06

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摘要： 塔里木库车坳陷依南2井侏罗 系储集层砂岩中流体包裹体较丰富,主要发育有石油包裹体,盐水溶液包裹体及气态烃包裹体。石油包裹体均一温度为85~110℃,盐水溶液包裹体均一溫度为90~120℃与128~168℃,分别与石油包裹体及气态烃包裹体共生。模拟计算出典型石油包裹体与气态烃包裹体的捕获温度与捕获压力分别为115℃,35.9MPa及162℃,54.8 MPa.结合成藏地质背景,推测石油包裹体形成时间为12×106~10x106a,气态烃包裹体形成时间为7×106~6x106a,石油包裹体来源于阳霞凹陷侏罗系煤系烃源岩,气态烃包裹体源于依南2井区侏罗系煤系烃源岩。

关键词: 塔里木盆地, 库车坳陷, 包裹体, 古温度, 古压力

Abstract: Abundant fluid inclusions are found in Jurassic sandstone reservoir of Yinan No.2 W ell in Kuqa depression, Tarim basin, in which oil inclusion, brine inclusion and gaseous hydrocarbon inclusion are mainly developed, with their nniform temperature of 85~110℃, 90~ 120℃ and 128~168℃. The typical oil inclusion and gaseous hydrocarbon inclusion possess their own trapped temperatare and pressure of 115℃, 35.9MPa and 162℃, 54.8MPa, respectively by mnodeling estimation. Considering geologic setting of the reservoir, the time of shaping the inclusions is (12~ 10)×106a for oil inclusion and (7~6)×106a for gaseous inclusion, and the former came from Jurassic coal measure source rocks in Yangxia sag, while the latter from Jnrassic coal measure source rocks in Yinan No.2 W ell Block.

Key words: Tarim basin, Kuqa depression, inclusion, paleotemperature, paleopressure

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