Application of Sedimentary Forward Modeling of the Permian Wutonggou Formation in the East Slope of Jimusar Sag, Junggar Basin

doi:10.3969/j.issn.1006-6535.2021.01.005

Abstract

Abstract: In view of the problem of unclear favorable sedimentary facies belts of the Permian Wutonggou Formation in the east slope of Jimusar Sag, Junggar Basin, the sedimentary evolution process of the Permian Wutonggou Formation in the study area was represented with sedimentary forward modeling method based on drilling and seismic data. The results show that braided river deltation-lacustrine sedimentary system was developed in the Wutonggou Formation in the study area under the condition of first water inflow and then water outflow, the provenance mainly came from the Guxi Uplift, and the delta front facies and sand presented a superimposing relationship of first retrogradation and then progradation from bottom to top; lithological traps were formed near the center of the Sag, and fault-lithological traps were formed near the edges of the Sag; lithological traps at the top of the Wutonggou Member 1 and the bottom of the Wutonggou Member 2 were conducive to the formation of light oil reservoirs. This study provides a reference for later exploration deployment and development adjustment in the study area.

Key words: sedimentary forward modeling, sedimentary evolution, braided river delta, hydrocarbon accumulation, Wutonggou Formation, Junggar Basin

CLC Number:

TE121.3

Wang Tao, Li Ting, Guo Wenjian, Zhang Yu, Yang Tongyuan, Yang Yibo, Zhang Jianxin. Application of Sedimentary Forward Modeling of the Permian Wutonggou Formation in the East Slope of Jimusar Sag, Junggar Basin[J]. Special Oil & Gas Reservoirs, 2021, 28(1): 34-41.

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