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Poromechanics
response of an inclined borehole subject to in-situ stress
and finite length fluid discharge
Younane N. Abousleiman and Shengli Chen |
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Vol. 5 (2010), No. 1, 47–66
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Abstract |
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The analytical approach developed in this paper calculates the poroelastic coupled time-dependent stress and pore pressure variations for an inclined borehole drilled in a fluid saturated porous medium and subjected to the far-field three-dimensional in-situ stresses in addition to a fluid discharge over a finite length of its surface. This problem is encountered in many engineering applications, in particular, in wellbore drilling, fluid injection, and production. A superposition scheme is employed to obtain the analytical solutions within the linear theory of poromechanics. The comparison with an earlier published solution shows a discrepancy in the poroelastic boundary conditions applied at the wellbore wall. In this solution a systematic analysis is being carried out to evaluate the effects of the mechanical parameters on the calculated time-dependent effective tangential stress and pore pressure in addition to the effects of the borehole inclination and the geometry of the flux loading area are also included. |
Keywords
inclined borehole, poromechanics, fluid discharge, stress
and pore pressure, hydraulic fracturing, integral transform
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Milestones
Received: 3 March 2009
Revised: 23 July 2009
Accepted: 3 August 2009
Published: 19 April 2010
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Authors |
| Younane N. Abousleiman | |
| The University of Oklahoma Poromechanics Institute Mewbourne School of Petroleum & Geological Engineering 100 East Boyd Street Norman, OK 73019-1014 United States |
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| Shengli Chen | |
| The University of Oklahoma Poromechanics Institute Mewbourne School of Petroleum & Geological Engineering 100 East Boyd Street Norman, OK 73019-1014 United States |
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