每年出版 6 期
ISSN 打印: 1543-1649
ISSN 在线: 1940-4352
Indexed in
COUPLING A GEOMECHANICAL RESERVOIR AND FRACTURING SIMULATOR WITH A WELLBORE MODEL FOR HORIZONTAL INJECTION WELLS
摘要
Reservoir cooling during waterflooding or waste-water injection results in thermo-poro-elastic stresses that can significantly alter the reservoir stress tensor field. In addition, colloidal particles in the injected water can filter on the borehole and fracture surfaces resulting in matrix permeability reduction. Fractures are likely to initiate and propagate from injectors because of these thermal and filtration effects. These fractures are of great concern for both environmental reasons and their strong influence on reservoir sweep and oil recovery. In this paper, a fully coupled reservoir-fracture-wellbore model was developed. Fluid flow, solid mechanics, energy balance, fracture initiation and propagation, and particle filtration are modeled in the reservoir, fracture, and wellbore domains. The coupled non-linear systems of equations are solved implicitly using the Newton-Raphson method. Simulation results show that water quality and thermal effects control fluid leak-off and fracture growth. While it is difficult to predict the exact location of fracture initiation due to reservoir heterogeneity, we propose a reasonable method to handle fracture initiation and growth without a predefined fracture location. In open-hole completions, "thief" fractures may propagate deep into the reservoir. Thermal stress changes in the injection zone are shown to be significant because of the combined effects of forced convection, heat conduction, and poro-elasticity. Accurate predictions of thermal stress in different reservoir layers allow us to conduct numerical studies on fracture height growth and containment. We show that controlling the injection water temperature and the water quality are an effective way to ensure fracture containment.
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Barkman, J.H. and Davidson, D.H., Measuring Water Quality and Predicting Well Impairment, J. Pet. Technol, vol. 24, no. 7, pp. 865-873,1972. DOI: 10.2118/3543-PA.
-
Bandis, S.C.,Lumsden, A.C., and Barton, N.R., Fundamentals of Rock Joint Deformation, Int. J. RockMech. Mining Sci. Geomech. Abstr., vol. 20, no. 6, pp. 249-268,1983. DOI: 10.1016/0148-9062(83)90595-8.
-
Cardiff, P., Tukovic, Z., Jasak, H., and Ivankovic, A., A Block-Coupled Finite Volume Methodology for Linear Elasticity and Unstructured Meshes, Comput. Struct., vol. 175, pp. 100-122,2016. DOI: 10.1016/j.compstruc.2016.07.004.
-
Dana, S., Ganis, B., and Wheeler, M.F., A Multiscale Fixed Stress Split Iterative Scheme for Coupled Flow and Poromechanics in Deep Subsurface Reservoirs, J. Comput. Phys, vol. 352, pp. 1-22,2018. DOI: 10.1016/j.jcp.2017.09.049.
-
Dana, S. and Wheeler, M.F., Convergence Analysis of Fixed Stress Split Iterative Scheme for Anisotropic Poroelasticity with Tensor Biot Parameter, Comput. Geosci, vol. 22, no. 5, pp. 1219-1230,2018. DOI: 10.1007/s10596-018-9748-2.
-
Dana, S. and Wheeler, M.F., Convergence Analysis of Two-Grid Fixed Stress Split Iterative Scheme for Coupled Flow and Deformation in Heterogeneous Poroelastic Media, Comput. Methods Appl. Mech. Eng., vol. 341, pp. 788-806, 2018. DOI: 10.1016/j.cma.2018.07.018.
-
Fung, R.L., Vilayakumar, S., and Cormack, D.E., Calculation of Vertical Fracture Containment in Layered Formations, SPE Form. Eval., vol. 2, no. 4, pp. 518-522,1987. DOI: 10.2118/14707-PA.
-
Hwang, J., Zheng, S., Sharma, M.M., Chiotoroiu, M.M., and Clemens, T., Containment of Water-Injection-Induced Fractures: The Role of Thermal Stresses Induced by Convection and Conduction, in SPE Improved Oil Recovery Conf, 2020. DOI: 10.2118/200400-MS.
-
Hossain, M.M., Rahman, M.K., and Rahman, S.S., Hydraulic Fracture Initiation and Propagation: Roles of Wellbore Trajectory, Perforation and Stress Regimes, J Pet. Sci. Eng., vol. 27, nos. 3-4, pp. 129-149,2000. DOI: 10.1016/S0920-4105(00)00056-5.
-
Lotfollahi Sohi, M., Development of a Four-Phase Flow Simulator to Model Hybrid Gas/Chemical EOR Processes, PhD, The University of Texas at Austin, Austin, TX, 2015.
-
Manchanda, R., Zheng, S., Hirose, S., and Sharma, M.M., Integrating Reservoir Geomechanics with Multiple Fracture Propagation and Proppant Placement, SPE J., vol. 25,no. 2, pp. 662-691,2020. DOI: 10.2118/199366-PA.
-
Martins, J.P., Murray, L.R., Clifford, P.J., McLelland, W.G., Hanna, M.F., and Sharp, J.W., Jr., Produced-Water Reinjection and Fracturing in Prudhoe Bay, SPE Reservoir Eng., vol. 10,no. 3,pp. 176-182,1995.DOI: 10.2118/28936-PA.
-
Nagoo, A.S., Pipe Fractional Flow Theory: Principles and Applications, PhD, The University of Texas at Austin, Austin, TX, 2014.
-
Paige, R.W., Murray, L.R., Martins, J.P., and Marsh, S.M., Optimising Water Injection Performance, in Middle East Oil Show, 1995. DOI: 10.2118/29774-MS.
-
Pang, S. and Sharma, M.M., A Model for Predicting Injectivity Decline in Water-Injection Wells, SPE Form. Eval., vol. 12, no. 3, pp. 194-201,1997. DOI: 10.2118/28489-PA.
-
Perkins, T.K. and Gonzalez, J.A., The Effect of Thermoelastic Stresses on Injection Well Fracturing, SPE J, vol. 25, no. 1, pp. 78-88,1985. DOI: 10.2118/11332-PA.
-
Simonson, E.R., Abou-Sayed, A.S., and Clifton, R.J., Containment of Massive Hydraulic Fractures, SPE J, vol. 18, no. 1, pp. 27-32,1978. DOI: 10.2118/6089-PA.
-
van Eekelen, H.A.M., Hydraulic Fracture Geometry: Fracture Containment in Layered Formations, SPE J., vol. 22, no. 3, pp. 341-349,1982. DOI: 10.2118/9261-PA.
-
Wennberg, K.E. and Sharma, M.M., Determination of the Filtration Coefficient and the Transition Time for Water Injection Wells, in SPE European Formation Damage Conf., Hague, Netherlands, June 1997. DOI: 10.2118/38181-MS.
-
Zheng, S., Manchanda, R., and Sharma, M.M., Development of a Fully Implicit 3-D Geomechanical Fracture Simulator, J. Pet. Sci. Eng., vol. 179, pp. 758-775,2019. DOI: 10.1016/j.petrol.2019.04.065.
-
Zheng, S., Hwang, J., Manchanda, R., and Sharma, M.M., An Integrated Model for Non-Isothermal Multi-Phase Flow, Geomechanics and Fracture Propagation, J. Pet. Sci. Eng., vol. 196, p. 107716,2021. DOI: 10.1016/j.petrol.2020.107716.
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Zheng, S., Manchanda, R., and Sharma, M.M., Modeling Fracture Closure with Proppant Settling and Embedment during Shut-In and Production, SPE Drill. Completion, vol. 35, no. 4, pp. 668-683,2020. DOI: 10.2118/201205-PA.
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Zheng, S., Development of a Fully Integrated Equation of State Compositional Hydraulic Fracturing and Reservoir Simulator, PhD, The University of Texas at Austin, Austin, TX, 2021.
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Hwang Jongsoo, Zheng Shuang, Sharma Mukul, Chiotoroiu Maria-Magdalena, Clemens Torsten, Use of Horizontal Injectors for Improving Injectivity and Conformance in Polymer Floods, Day 1 Mon, April 25, 2022, 2022. Crossref
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Zheng Shuang, Elliott Brendan, Sharma Mukul, Azimuthally Resolved Wellbore Strain Measurements: A Powerful New Fracture Diagnostics Method, Day 3 Thu, February 03, 2022, 2022. Crossref
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Cao Meng, Zheng Shuang, Elliott Brendan, Sharma Mukul, Impact of Complex Fracture Networks on Well Productivity: A Case Study of the Hydraulic Fracturing Test Site #2, Day 1 Tue, February 01, 2022, 2022. Crossref