Oil & Gas Geology ›› 2002, Vol. 23 ›› Issue (4): 314-320,342.doi: 10.11743/ogg20020402

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DYNAMIC PREDICTION OF OIL AND GAS POOL FORMATION

Zhao Zhongyuan1, Zhang Xiaohui1, Ren Zhanli1, Jin Jiuqiang 2   

  1. 1. Department of Geology, Northwest University, Xi'an, Shaanxi;
    2. Research Institute of Petroleum Exploration and Development, CNPC, Beijing
  • Received:2002-05-29 Online:2002-12-25 Published:2012-01-16

Abstract:

In accordance with the method of dynamic prediction of oil and gas pool formation, the geological factors related to the process of pool formation and effects can be respectively referred to as two systems of visible system and invisible system. The visible system Framework of system of pool forming elements is composed of source rocks, carrier beds, regional seals and traps. Invisible system hydrocarbon generation, pool formation and its processes, run in and along the framework of the former system, includes the hydrocarbon generation, primary and secondary migration and charge to trap forming the pools. The method of dynamic prediction of oil and gas pool formation is based on the structural map of source rock or the carrier bed near the source rock occurring during the stage of hydrocarbon generation. And then, upon which it is superposed respectively by the maps of pool forming elements and other corresponding maps, using that separately to analyze and predict the possible structural or non structural traps which may be charged by the oil and gas. And at the same time, a predictive map of oil and gas pool formation or a analytic map of the process of pool formation will be drawn up according to whether the changes of primary oil and gas pool formation caused by the successive subsidence and tectonic activity of sedimentary basins in post-pool-forming stage. If great changes really occurred in the primary pools, it is, thereby, necessary to draw up a map of the present structural map of source rock or carrier beds near the source rock to compare with the analytic map to analyze the present occurrences of the primary pools and predict the location of secondary oil and gas formation.

Key words: oil and gas pool formation, dynamic prediction, element fragment, visible system, invisible system

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