Abnormal formation pressures and oil-gas migration in China

作     者：华保钦 

作者机构：Lanzhou Institute of GeologyChinese Academy of SciencesLanzhou 730000China 

出 版 物：《Science China Chemistry》 (中国科学（化学英文版）)

年 卷 期：1995年第38卷第7期

页      面：888-896页

核心收录：

学科分类：081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程] 

主　　题：abnormal pressure terrestrial sediment oil-gas migration. 

摘      要：Abnormal formation pressures occur not only in marine strata but also in terrestrialsedimentary basins in *** develops most in Tertiary,followed by Mesozoic and *** decreases with the age of *** pressure raainly results from imbalanced compaction andhydrocarbon generation,and depends on various geological *** secondary cause is the uplift ofcrust at the late stage and the transformation of clay *** data show that the abnormal forma-tion pressure provides the dynamic force and passages for the primary migration of oil-gas,and in reservoirs,itcan affect the distribution of flow potential,which controls the migration direction and the aocumulation placeof oil and gas.