Abstract
The in-situ stress is a critical factor that needs to be assessed in the development of a safe and sustainable oil and gas recovery, but it is also difficult to be accurately measured with the existing methods, especially in the soft sedimentary formations. In this paper, pressuremeter testing, as one of the promising approaches for the in-situ stress determination, is evaluated under a well-controlled polyaxial boundary stress condition. The experiment setup and test procedure are described. The data for the tests under three different stress regimes are presented. The data is corrected for the eccentricity and the movement of the tool during the test to show the non-uniform deformation of borehole in the testing plane. The discrepancy of pressure-expansion curves obtained at different axes is in a good agreement with the theoretical findings showing the effect of the in-situ stress anisotropy on the cavity expansion.
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15 July 2018
In the original version of the book, the incorrect second author name “We-Wei Du” has to be corrected as “Wei-Wei Du” in the chapter “Model Test of Seepage Erosion Around Defective Buried Pipelines”, frontmatter and backmatter. The erratum book has been updated with the change.
In the original version of the book, an incorrect image was labelled as Figure 5 in Chapter 50, which has now been corrected. The book and the chapter have been updated with the change.
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Acknowledgement
This work was financially supported by the Foundation CMG Industrial Research Consortia. The technical support from J. Brandl at the University of Alberta and the lab technicians at RIPED is also gratefully acknowledged.
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Liu, L., Fu, H., Chalaturnyk, R., Weng, D., Zambrano, G., Zheng, S. (2018). An Experimental Study of Pressuremeter Testing Under Polyaxial Boundary Stress Condition. In: Hu, L., Gu, X., Tao, J., Zhou, A. (eds) Proceedings of GeoShanghai 2018 International Conference: Multi-physics Processes in Soil Mechanics and Advances in Geotechnical Testing. GSIC 2018. Springer, Singapore. https://doi.org/10.1007/978-981-13-0095-0_50
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DOI: https://doi.org/10.1007/978-981-13-0095-0_50
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