一种基于岩石物理建模的横波预测方法

doi:10.11720/wtyht.2021.1164

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Abstract

Shear wave velocity plays an important role in seismic forward modeling,fluid prediction and AVO analysis.However,due to the high cost of shear wave logging,there are no shear wave velocity logging data in some work areas.The prediction method of shear wave based on rock physics modeling is specific and accurate.In this paper,the method of calculating effective elastic modulus proposed by Sabrina is adopted,and the assumption conditions of CAO for shear wave prediction by this method are extended,rock physics modeling is performed,and the measured porosity is used to calculate the pore compliance so as to further predict the shear wave.Finally,combined with the actual data,the cross velocity data are used to conduct verification,and the results show that the effect is fairly good.

Key words： prediction method of shear wave rock physics modeling effective volume modulus pore compliance

Received: 24 September 2020 Published: 21 December 2021

ZTFLH:

P631.4

Corresponding Authors: HUANG Han-Dong E-mail: syky@sinopec.com;webhhd@163.com

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	Articles by authors
	Lan-Feng LIU
	Long YIN
	Han-Dong HUANG
	Zhen-Ya ZHOU
	Jin-Chao DONG

Cite this article:

Lan-Feng LIU,Long YIN,Han-Dong HUANG, et al. Research on the method of shear wave prediction based on rock physics modeling[J]. Geophysical and Geochemical Exploration, 2021, 45(6): 1482-1487.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2021.1164 OR https://www.wutanyuhuatan.com/EN/Y2021/V45/I6/1482

Numerical simulation of pore compliance parameters with porosity

The process of S-wave prediction

Comparison of the predicted shear-wave velocity
a—the prediction results of this method;b—this method prediction error;c—the predictiction results of the empirical formula;d—empirical formula prediction error

The estimation results of shear-wave of producing well
a—production well 1;b—production well 2

The statistic graph of P-wave velocity versus poisson's ratio

Results of the predicted shear-wave velocity(a) and v_p/v_s ratio(b)

Local details of the predicted shear-wave velocity(a) and v_p/v_s ratio(b)

The profile of possion ration cross well 1

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