Oil & Gas Geology ›› 2005, Vol. 26 ›› Issue (1): 29-36.doi: 10.11743/ogg20050105

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Outlook for basin modelling

Zhang Yuchang, Xu Xuhui, Jiang Xingge, Zhu Jianhui   

  1. Wuxi Institute of Experimental Petroleum Geology, Exploration &Production Research Institute, SINOPEC, Wuxi, Jiangsu
  • Received:2004-11-25 Online:2005-02-25 Published:2012-01-16

Abstract:

Based on the practices in Qintong depression of Subei, Changling depression in southern Songliao basin and Xihu depression in East China Sea, constrained modelling through geological analysis of basins', prototypes and their juxtaposition and superimposition relations, and combining geological thinking in images with mathematical logic thinking,"TSM"basin system modelling of geologic processes and oil & gas response relations are carried out by using combination of multiple modules and multiple programs. Now, modelling of rift's 2-D subsidence process has been realized in the domain of stacking geology of fault-subsidence prototype basins, which reveal the superimposition of various prototypes of basins would change the geological processes, control the generation and distribution of oil and gas, indicate migration path of oil and gas, and can even predict zones of oil and gas accumulation. Tainan oilfield has thus been discovered in Subei, and a considerable amount of commercial production has been acquired in Darhan reversed structure in southern Songliao basin. Although"TSM"basin system modelling, with essential prediction functions, has been preliminarily applied in practice to serve decision-making in petroleum exploration, it is still in an initial stage with large amount of R&D work to be performed, such as simulation systems for various prototypes of basins, including compressing and squeezing foredeep basin, strike-slip and extensional basin and intracontinental depression basin, as well as simulation of superimposition of various prototypes of basins. Nevertheless,"TSM"modellng has built a bridge leading from known to unknown, and it will become one of the innovative technology chains in our petroleum exploration.

Key words: petroliferous basin, basin modelling, basin superimposition, reversed structure

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