The Numerical Simulation Calculation of Complicated In-Situ Stress Filed for Borehole Surrounding Rock

Wan Chun Zhao; Jun Fa Wang; Chen Yan Sun; Teng Li; Tian Hong Jiang

doi:10.4028/www.scientific.net/AMM.170-173.1048

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 170-173The Numerical Simulation Calculation of...

The Numerical Simulation Calculation of Complicated In-Situ Stress Filed for Borehole Surrounding Rock

Abstract:

In order to accurately simulate the distribution of complicated in-situ stress filed of reservoir using the method of numerical simulation. In this paper, firstly, we have established the injection-production pore pressure model around refracturing well using potential additive principle; secondly, we have established primary fracture induced stress field model, considering that the weakly compressible fluid is filled with the injection-production primary fracture and introducing the elastic coefficient of fluid; finally, we have calculated the distribution of stress around a production well using ANASYS software. The calculating result is accurate and agrees well with practical ones. This method can solve the problem of calculating complicated in-situ stress filed using analytical method, and provides a new method for the subsequent study of stress field.

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Periodical:

Applied Mechanics and Materials (Volumes 170-173)

Pages:

1048-1051

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.170-173.1048

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Online since:

May 2012

Authors:

Wan Chun Zhao, Jun Fa Wang, Chen Yan Sun, Teng Li, Tian Hong Jiang

Keywords:

In Situ Stress, Induced Stress, Potential Energy, Refracturing

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References

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