Analyzing of Multi Field Coupling Borehole Collapse Time for Shale

Xiqiang MIAO


Based on the theory of semi-permeable diaphragm equivalent pore pressure, the fluid-chemistry coupling diffusivity equation of pore pressure is deduced, and then fluid-solid-chemistry coupling model for porous media is founded. Based on theory deduction and laboratory experiment, a new model which represents the relation between the pore pressure and the rock intensive parameters (cohesion stress and angle of internal friction) is founded. A new model which can calculate the collapse time for shale is developed by using the Coulomb-Mohr failure criteria, and then the finite element simulation program is developed by using the software of FEPG. According to the research, the drilling fluid of low activity can inhabit the increasing trend of pore pressure nearby the borehole effectively, and the drilling fluid of low activity can also inhabit the decreasing trend of cohesion stress effectively under the influence of chemical field and seeping field, which favors the borehole stability. The lithological character and drilling fluid performance should be considered in the process of evaluation and forecast of collapse time, and the drilling fluid can be optimized by using this multi field coupling model.


Porous media; Multi field coupling; Pore pressure; collapse time

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Chenvert, M. E., & Pernot, V. (1998). Control of shale swelling pressures using inhibitive water-base muds. SPE 49263.

Huang, H., & Holditch, S. A. (1998). Numerical simulation and experimental studies of shale interaction with water-base drilling fluid. SPE 47796.

Li, P. C., Kong, X. Y., & Lu, D. T. (2003). The mathematical model of flow-solid coupling seeping in saturated porous media. Journal of Hydrodynamics, 18(4), 419-426.

Lin, Y. X. (1998). The forecast method for mechanical-chemical coupling of borehole’s stability. Petroleum Drilling Techniques, 26(3), 19-21.

Liu, B., & Yan, J. N. (2003). The development of high level efficiency collapse-preventing drilling fluid and its apply in Tahe oil field in Xinjiang. Journal of Petroleum University (Natural Science), 27(5), 56-59.

van Oort, E., Hale, A. H., & Mody, F. K. (1994). Critical parameters in modeling the chemical aspects of borehole stability in shales and in designing improved water based shale drilling fluids. SPE 28309.



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