Oil & Gas Geology ›› 2007, Vol. 28 ›› Issue (2): 191-197,215.doi: 10.11743/ogg20070209

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Simulation of hydrocarbon migration dynamics in Shahejie Formation of Chengbei fault step zone

Luo Xiaorong1, Zhang Likuan1, Liao Qianjing2, Su Junqing2, Yuan Shuqin2, Song Haiming1, Zhou Bo1, Hou Ping1   

  1. 1. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029;
    2. Institute of Exploration and Development, PetroChina Dagang Oil Company, Tianjin, 300280
  • Received:2007-02-06 Online:2007-04-25 Published:2012-01-16

Abstract:

Based on the understanding of geological conditions of petroleum systems in Shahejie Formation of Chengbei fault step zone,Bohaiwan basin,the evolution of the basin,hydrocarbon maturity,and dynamic conditions for hydrocarbon migration are successfully reconstructed through basin modeling,some physical properties such as the porosity and permeability of different pathway systems in the area are studied,and the connectivity of faults and sandstone carriers are quantified by the opening probability and net-to-gross ratio respectively.Hydrocarbon migration and accumulation modeling methods based on the percolation theory are used to realize the coupling of migration dynamics and pathways in the two-dimensional carrier framework model built on real data.The results reveal the hydrocarbon migration path and its relative flow rates in the target intervals of the Shahejie Formation.These study results,in combination with other geological conditions,are successfully used in identifying the prospective target zones,including eastern Zhangdong structural belt,the Zhangdong structural belt,and area around the Well Zhuanghai-12 and Well Zhuanghai-9x3.

Key words: migration model, carrier framework, fault opening probability, percolation, migration and accumulation dynamics

CLC Number: