Oil & Gas Geology ›› 2002, Vol. 23 ›› Issue (3): 207-211.doi: 10.11743/ogg20020302

Previous Articles     Next Articles

APPLICATION OF FLUID INCLUSION IN PALAEOPRESSURE MODELLING RESEARCH

Chen Honghan1, Dong Weiliang2, Zhang Shulin1, Yang Jihai2   

  1. 1. China University of Geosciences, Wuhan;
    2. Nanhai Western Oil Company, Zhanjiang, Guangdong
  • Received:2002-03-12 Online:2002-09-25 Published:2012-01-16

Abstract:

The minimum trapping pressure ratio of hydrocarbon fluid inclusions can be defined by their isochore single value variations in P-T space projection and physical property of their isochore. Calcite veins, quartz secondary enlarged margins and fluid inclusions in particle cracks in sandstones of Yancheng Formation of YC21-1 structure in Qiongdongnan(southeastern Hainan) basin of the South China Sea indicate in geologic history that four phases of fluid inclusions were developed in that region; the capping bed was once burst during the third mobile phase of thermo-fluid inclusions which would be healed soon after. Therefore, no many free-state natural gas reservoirs could be formed there.

Key words: fluid inclusion, palaeopressure, isochore, capping bed burst, Qiongdongnan

CLC Number: