Production-Performance Analysis of Composite Shale-Gas Reservoirs by the Boundary-Element Method
- Minglu Wu (China University of Petroleum, QingDao) | Mingcai Ding (China University of Petroleum, QingDao) | Jun Yao (China University of Petroleum, QingDao) | Chenfeng Li (Swansea University) | Zhaoqin Huang (China University of Petroleum, QingDao) | Sinan Xu (China University of Petroleum, QingDao)
- Document ID
- Society of Petroleum Engineers
- SPE Reservoir Evaluation & Engineering
- Publication Date
- February 2019
- Document Type
- Journal Paper
- 238 - 252
- 2019.Society of Petroleum Engineers
- multiple flow mechanisms, Composite shale gas reservoirs, stimulated reservoir volume, boundary element method, multiple fractured horizontal well
- 50 in the last 30 days
- 160 since 2007
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A shale-gas reservoir with a multiple-fractured horizontal well (MFHW) is divided into two regions: The inner region is defined as stimulated reservoir volume (SRV), which is interconnected by the fracture network after fracturing, while the outer region is called unstimulated reservoir volume (USRV), which has not been stimulated by fracturing. Considering an arbitrary interface boundary between SRV and USRV, a composite model is presented for MFHWs in shale-gas reservoirs, which is based on multiple flow mechanisms, including adsorption/desorption, viscous flow, diffusive flow, and stress sensitivity of natural fractures. The boundary-element method (BEM) is applied to solve the production of MFHWs in shale-gas reservoirs. The accuracy of this model is validated by comparing its production solution with the result derived from an analytical method and the reservoir simulator. Furthermore, the practicability of this model is validated by matching the production history of the MFHW in a shale-gas reservoir. The result shows that the model in this work is reliable and practicable. The effects of relevant parameters on production curves are analyzed, including Langmuir volume, Langmuir pressure, hydraulic-fracture width, hydraulic-fracture permeability, natural-fracture permeability, matrix permeability, diffusion coefficient, stress-sensitivity coefficient, and the shape of the SRV. The model presented here can be used for production analysis for shale-gas-reservoir development.
|File Size||1 MB||Number of Pages||15|
Archer, R. A. 2008. Impact of Stress Sensitive Permeability on Production Data Analysis. Presented at the SPE Unconventional Reservoirs Conference, Keystone, Colorado, 10–12 February. SPE-114166-MS. https://doi.org/10.2118/114166-MS.
Cheng, Y. 2003. Pressure Transient Testing and Productivity Analysis for HorizontalWells. PhD dissertation, Texas A&M University, College Station, Texas.
Clarkson, C. R. 2013. Production Data Analysis of Unconventional Gas Wells: Review of Theory and Best Practices. International Journal of Coal Geology 109–110: 101–146. https://doi.org/10.1016/j.coal.2013.01.002.
Fan, D., Yao, J., Sun, H. et al. 2015. A Composite Model of Hydraulic Fractured Horizontal Well With Stimulated Reservoir Volume in Tight Oil & Gas Reservoir. Journal of Natural Gas Science and Engineering 24: 115–123. https://doi.org/10.1016/j.jngse.2015.03.002.
He, J., Teng, W., Xu, J. et al. 2016. A Quadruple-Porosity Model for Shale Gas Reservoirs With Multiple Migration Mechanisms. Journal of Natural Gas Science and Engineering 33: 918–933. https://doi.org/10.1016/j.jngse.2016.03.059.
Idorenyin, E. H. and Shirif, E. 2017. Transient Response in Arbitrary-Shaped Composite Reservoirs. SPE Res Eval & Eng. 20 (3): 752–764. SPE-184387-PA. https://doi.org/10.2118/184387-PA.
Kikani, J. and Horne, R. N. 1992. Pressure-Transient Analysis of Arbitrarily Shaped Reservoirs With the Boundary-Element Method. SPE Form Eval 7 (1): 53–60. SPE-18159-PA. https://doi.org/10.2118/18159-PA.
Liu, M., Xiao, C., Wang, Y. et al. 2015. Sensitivity Analysis of Geometry for Multi-Stage Fractured Horizontal Wells With Consideration of Finite-Conductivity Fractures in Shale Gas Reservoirs. Journal of Natural Gas Science and Engineering 22: 182–195. https://doi.org/10.1016/j.jngse.2014.11.027.
Mayerhofer, M. J., Lolon, E., Warpinski, N. R. et al. 2010. What Is Stimulated Reservoir Volume? SPE Prod & Oper 25 (1): 89–98. SPE-119890-PA. https://doi.org/10.2118/119890-PA.
Moinfar, A., Varavei, A., Sepehrnoori, K. et al. 2013. Development of a Coupled Dual Continuum and Discrete Fracture Model for the Simulation of Unconventional Reservoirs. Presented at the SPE Reservoir Simulation Symposium, The Woodlands, Texas, 18–20 February. SPE-163647-MS. https://doi.org/10.2118/163647-MS.
Nobakht, M. and Clarkson, C. R. 2012. A New Analytical Method for Analyzing Linear Flow in Tight/Shale Gas Reservoirs: Constant-Flowing-Pressure Boundary Condition. SPE Res Eval & Eng 15 (1): 51–59. SPE-143990-PA. https://doi.org/10.2118/143990-PA.
Ozkan, E., Brown, M. L., Raghavan, R. S. et al. 2009. Comparison of Fractured Horizontal-Well Performance in Conventional and Unconventional Reservoirs. Presented at the SPE Western Regional Meeting, San Jose, California, 24–26 March. SPE-121290-MS. https://doi.org/10.2118/121290-MS.
Ozkan, E., Brown, M. L., Raghavan, R. et al. 2011. Comparison of Fractured-Horizontal-Well Performance in Tight Sand and Shale Reservoirs. SPE Res Eval & Eng 14 (2): 248–259. SPE-121290-PA. https://doi.org/10.2118/121290-PA.
Pedrosa Jr., O. A. 1986. Pressure Transient Response in Stress-Sensitive Formations. Presented at the SPE California Regional Meeting, Oakland, California, 2–4 April. SPE-15115-MS. https://doi.org/10.2118/15115-MS.
Sato, K. and Horne, R. N. 1993a. Perturbation Boundary Element Method for Heterogeneous Reservoirs: Part 1—Steady-State Flow Problems. SPE Form Eval 8 (4): 306–314. SPE-25299-PA. https://doi.org/10.2118/25299-PA.
Sato, K. and Horne, R. N. 1993b. Perturbation Boundary Element Method for Heterogeneous Reservoirs: Part 2—Transient-Flow Problems. SPE Form Eval 8 (4): 315–322. SPE-25300-PA. https://doi.org/10.2118/25300-PA.
Stehfest, H. 1970. Algorithm 368: Numerical Inversion of Laplace Transforms [D5]. Communications of the ACM 13 (1): 47–49. https://doi.org/10.1145/361953.361969.
Wang, F. P. and Reed, R. M. 2009. Pore Networks and Fluid Flow in Gas Shales. Presented at the SPE Annual Technical Conference and Exhibition, New Orleans, 4–7 October. SPE-124253-MS. https://doi.org/10.2118/124253-MS.
Wang, H. and Zhang, L. 2009. A Boundary Element Method Applied to Pressure Transient Analysis of Geometrically Complex Gas Reservoirs. Presented at the Latin American and Caribbean Petroleum Engineering Conference, Cartagena de Indias, Colombia, 31 May–3 June. SPE-122055-MS. https://doi.org/10.2118/122055-MS.
Wang, H.-T. 2014. Performance of Multiple Fractured Horizontal Wells in Shale Gas Reservoirs With Consideration of Multiple Mechanisms. Journal of Hydrology 510: 299–312. https://doi.org/10.1016/j.jhydrol.2013.12.019.
Warpinski, N. R., Mayerhofer, M. J., Vincent, M. C. et al. 2009. Stimulating Unconventional Reservoirs: Maximizing Network Growth While Optimizing Fracture Conductivity. J Can Pet Technol 48 (10): 39–51. SPE-114173-PA. https://doi.org/10.2118/114173-PA.
Warren, J. and Root, P. J. 1963. The Behavior of Naturally Fractured Reservoirs. SPE J. 3 (3): 245–255. SPE-426-PA. https://doi.org/10.2118/426-PA.
Wu, Y.-S., Li, N., Wang, C. et al. 2013. A Multiple-Continuum Model for Simulation of Gas Production From Shale Gas Reservoirs. Presented at the SPE Reservoir Characterization and Simulation Conference and Exhibition, Abu Dhabi, 16–18 September. SPE-165991-MS. https://doi.org/10.2118/165991-MS.
Xu, B., Haghighi, M., Li, X. et al. 2013. Development of New Type Curves for Production Analysis in Naturally Fractured Shale Gas/Tight Gas Reservoirs. Journal of Petroleum Science and Engineering 105: 107–115. https://doi.org/10.1016/j.petrol.2013.03.011.
Xu, J., Guo, C., Wei, M. et al. 2015. Production Performance Analysis for Composite Shale Gas Reservoir Considering Multiple Transport Mechanisms. Journal of Natural Gas Science and Engineering 26: 382–395. https://doi.org/10.1016/j.jngse.2015.05.033.
Zeng, H., Fan, D., Yao, J. et al. 2015. Pressure and Rate Transient Analysis of Composite Shale Gas Reservoirs Considering Multiple Mechanisms. Journal of Natural Gas Science and Engineering 27 (Part 2): 914–925. https://doi.org/10.1016/j.jngse.2015.09.039.
Zerzar, A. and Bettam, Y. 2003. Interpretation of Multiple Hydraulically Fractured Horizontal Wells in Closed Systems. Presented at the SPE International Improved Oil Recovery Conference in Asia Pacific, Kuala Lumpur, 20–21 October. SPE-84888-MS. https://doi.org/10.2118/84888-MS.
Zerzar, A., Tiab, D., and Bettam, Y. 2004. Interpretation of Multiple Hydraulically Fractured Horizontal Wells. Abu Dhabi International Conference and Exhibition, Abu Dhabi, 10–13 October. SPE-88707-MS. https://doi.org/10.2118/88707-MS.
Zhao, Y.-l., Xie, S.-c., Peng, X.-l. et al. 2016. Transient Pressure Response of Fractured Horizontal Wells in Tight Gas Reservoirs With Arbitrary Shapes by the Boundary Element Method. Environmental Earth Sciences 75: 1220. https://doi.org/10.1007/s12665-016-6013-7.