Interaction of fluid dynamic factors in the migration and accumulation of natural gas  

作　　者：SONG Yan XIA Xinyu WANG Zhenliang WANG Yi HU Shengbiao 

机构地区：[1]Research Institute of Petroleum Exploration and Development,Beijing 100083,China [2]Institute of Geochemistry,Chinese Academy of Sciences,Guiyang 550002,China [3]Northwest University,Xi’an 710069,China [4]Chinese University of Petroleum,Dongying 257062,China [5]Institute of Geology,Chinese Academy of Sciences,Beijing 100029,China

出　　处：《Chinese Science Bulletin》2002年第14期1207-1211,共5页

摘　　要：The migration of fluid petroleum gas, described as fluid potential, depends only on gravity, fluid pressure controlled by depression and capillary force during tectoni-cally stable period; but on tectonic stress during the tectoni-cally active period with severe compression. This method is applied in the Junggar Basin, showing that the migration of Jurassic gas during Cretaceous and Eocene and the migration of Permian gas from Jurassic till the present are determined by capillary force and fluid pressure (including overpressure) which is controlled by depression; the migration of Jurassic gas from Eocene till the present and the migration of Permian gas during Triassic are controlled by tectonic stress.The migration of fluid petroleum gas, described as fluid potential, depends only on gravity, fluid pressure controlled by depression and capillary force during tectonically stable period; but on tectonic stress during the tectonically active period with severe compression. This method is applied in the Junggar Basin, showing that the migration of Jurassic gas during Cretaceous and Eocene and the migration of Permian gas from Jurassic till the present are determined by capillary force and fluid pressure (including overpressure) which is controlled by depression; the migration of Jurassic gas from Eocene till the present and the migration of Permian gas during Triassic are controlled by tectonic stress.

关 键 词：PETROLEUM migration FLUID potential TECTONIC stress FLUID pressure JUNGGAR Basin. 

分 类 号：P618.13[天文地球—矿床学]