综合成岩作用和孔隙形状的岩石物理模型及其应用

doi:10.11720/wtyht.2019.1192

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Abstract

Shear wave velocity plays an important role in seismic modeling,AVO analysis and fluid identification.However,realistic well logging data lack shear wave information,so shear wave velocity prediction becomes concentrated on rock physics research.Integrating K-T model and Pride model,the authors propose in this papera new rock physics model which is used to calculate dry rock moduli.The new rock physics model proposed in this paper integrates effects of pore shape and diagenesis to bulk modulus and shear modulus of dry rock,so it is more rational and its accuracy is high.At the same time,in combination with Gassmann theory,P-wave velocity and S-wave velocity model of fluid saturated rock is established.The model is applied to S-wave velocity predicting of measured data in lab and realistic well logging data.The predicted results demonstrate that S-wave velocity prediction based on the new rock physics model proposed in this paper is effective.

Key words： consolidation parameter aspect ratio rock physics shear wave prediction

Received: 16 May 2018 Published: 20 February 2019

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	Bo HOU
	Hong-Quan KANG
	Tao CHENG

Cite this article:

Bo HOU,Hong-Quan KANG,Tao CHENG. A new rock physics model integrating diagenesis and pore shape and its application[J]. Geophysical and Geochemical Exploration, 2019, 43(1): 161-167.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2019.1192 OR https://www.wutanyuhuatan.com/EN/Y2019/V43/I1/161

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