Oil & Gas Geology ›› 2005, Vol. 26 ›› Issue (5): 553-562.doi: 10.11743/ogg20050502

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New advancement in research of China's typical superimposed basins and reservoiring(Part I): classification and research methods of superimposed basins

Jin Zhijun1,2   

  1. 1. Exploration and Production Research Institute, SINOPEC, Beijing;
    2. Key Laboratory of Hydrocarbon Accumulation Mechanism, Ministry of Education, China University of Petroleum, Beijing
  • Received:2005-07-16 Online:2005-10-25 Published:2012-01-16

Abstract:

According to basin's evolutional history and structural features,the sedimentary basins in China can be divided into monotype and superimposed type basins.The prototypes of the monotype basins can further be divided into craton basins,extensional basins and compressional basins.Superposition of two or three kinds of monotype basins can result in various kinds of superimposed basins.Research of hydrocarbon accumulation in superimposed basins should focus on analyzing the dynamic process of basin formation-hydrocarbon generation-hydrocarbon accumulation.In respect of basin formation,basin-and-range coupling during the key tectonic movements and formation and reformation of basin structures are the bases of research.In respect of hydrocarbon generation,study of sedimentary environment of Paleozoic marine carbonates and good source rocks,and(mecha-)nisms and efficiencies of hydrocarbon generation and expulsion should be strengthened.In respect of hydrocarbon accumulation,emphasis must be placed on study of hydrocarbon accumulation and dissipation mechanisms,as well as evolution of petroleum systems.In view of the multicycle nature of geotectonic evolution in China,wave analysis is one of the effective methods that can be used to study superimposed basins.Whereas superimposed basins have the characteristics of multiple sources,multi-stage hydrocarbon migration and accumulation,multi-stage reservoiring and adjustment,the ideology of "element-structure-function" system is applied to propose the concept of reservoiring system,and the "source-location" classification scheme is used to establish 6 structural types of reservoiring system.

Key words: monotype basin, superimposed basin, wave analysis, hydrocarbon reservoiring system

CLC Number: