Application of Fracture Prediction with Prestack Seismic Data in Fengcheng Field of Junggar Basin

Abstract

Abstract: Lithology is complicated in Permian Fencheng Formation of Fencheng Field in the northwestern margin of Junggar Basin. It is dominated by mud dolomite and has pore-fracture dual media reservoir. To predict fracture strike and density is one of the key parts of oil and gas exploration. The fractured reservoir prediction technique based on P-wave azimuthal anisotropy using prestack seismic data is selected by comparing all kinds of fracture prediction techniques. First, forward modeling based on azimuthal anisotropy is conducted, determining main factors of anisotropy. Secondly, different azimuth seismic data processing is made, and azimuthally anisotropic attributes using prestack seismic data are calculated. Combined with data of the well, fracture strike and density are predicted, and the direction of further oil and gas exploration is pointed out. Drilling results prove that the predicted results are coincident with drilling results, and the technique is feasible in the area

Key words: Junggar Basin, Fencheng Field, Fencheng Formation, dolomite, P-wave azimuthal anisotropy, fracture prediction

CLC Number:

P631.44

Zhu Ming, Huo Jinjie and Bai Xuefeng. Application of Fracture Prediction with Prestack Seismic Data in Fengcheng Field of Junggar Basin[J]. China Petroleum Exploration, 2011, 16(Z1): 25-28,171.

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Application of Fracture Prediction with Prestack Seismic Data in Fengcheng Field of Junggar Basin

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