Rock Mechanics Parameters Calculation of the Fractured Rock Based on the Effective Media Theory with Well Logging

Yuan Zhong Zhang

doi:10.4028/www.scientific.net/AMM.166-169.2958

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 166-169Rock Mechanics Parameters Calculation of the...

Rock Mechanics Parameters Calculation of the Fractured Rock Based on the Effective Media Theory with Well Logging

Abstract:

Fractured rocks are the main oil and gas exploration objects offshore in China in recent years, which include the fractured sandstone, carbonate, volcanic rock, coal methane bed, shale gas and so on. The accurate calculation of the rock mechanics parameters (elastic modulus and Poisson’s ratio) play remarkable role in petroleum engineering operations, such as borehole stability, mud density window determination, perforation, EOR, in-situ stress predication and so on. Now the applications show that the in-situ stress estimation based on the rock parameters obtained by acoustic logging is much different from the downhole measurement with wireline formation tester. The pore space of the fractured rock contains fracture and cave and it is different from sandstone. In the paper a novel method based on the effective media theory with well logging for the rock mechanics parameters calculation of the fractured rock is introduced, and some problems and potential application are also discussed.

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Periodical:

Applied Mechanics and Materials (Volumes 166-169)

Pages:

2958-2961

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.166-169.2958

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Online since:

May 2012

Authors:

Yuan Zhong Zhang

Keywords:

Effective Media Theory, Fractured Rock, Rock Mechanics Parameters, Well Logging

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References

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