Application of Absorption Coefficient to Oil-Gas Prediction in Southeastern Sichuan Area

Abstract

Abstract: The absorption coefficient of strata is controlled by elastic property of rock matrix, also by the properties of porosity and pore fluid. In addition, it is an important parameter reflecting oil-gas bearing property of reservoir rocks. The variation of the absorption coefficient can be used to trace oil-gas bearing reservoir rocks, especially gas pools. This paper presents the processing results of poststack seismic data in an area of southeastern Sichuan province, obtaining the 3D absorption coefficient database. And the analysis indicates that the coefficient of gas zone is bigger than that of non-gas zone. It is concluded that the comprehensive analysis from these results, combining with geologic, drilling and well logging data, could better delineate the distribution scope of oil-gas bearing zone for the purpose of prediction of oil and gas reservoirs.

Key words: oil-gas prediction, absorption coefficient, reservoir description, seismic amplitude

CLC Number:

P631.445.91

NING Song-hua. Application of Absorption Coefficient to Oil-Gas Prediction in Southeastern Sichuan Area[J]. Xinjiang Petroleum Geology, 2007, 28(2): 167-169.

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Application of Absorption Coefficient to Oil-Gas Prediction in Southeastern Sichuan Area

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