Imbibition and Water Blockage In Unconventional Reservoirs: Well-Management Implications During Flowback and Early Production
- Antoine Bertoncello (Total EP USA) | Jon Wallace (Hess Corporation) | Chris Blyton (University of Texas at Austin) | Mehdi Matt Honarpour (BHP Billiton) | Shah Kabir (Hess Corporation)
- Document ID
- Society of Petroleum Engineers
- SPE Reservoir Evaluation & Engineering
- Publication Date
- November 2014
- Document Type
- Journal Paper
- 497 - 506
- 2014.Society of Petroleum Engineers
- well resting, imbibition, water blocking, unconventional reservoirs
- 11 in the last 30 days
- 1,285 since 2007
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Driven by field logistics in an unconventional setting, a well may undergo weeks to months of shut-in after hydraulic-fracture stimulation. In unconventional reservoirs, field experiences indicate that such shut-in episodes may improve well productivity significantly while reducing water production. Multiphase-flow mechanisms were found to explain this behavior. Aided by laboratory relative permeability and capillary pressure data, and their dependency on stress in a shale-gas reservoir, the flow-simulation model was able to reproduce the suspected water-blocking behavior. Results demonstrate that a well-resting period improves early productivity and reduces water production. The results also indicate that minimizing water invasion in the formation is crucial to avoid significant water blockage.
|File Size||1 MB||Number of Pages||10|
Agarwal, S., and Sharma, M.M. 2013. Impact of Liquid Loading in Hydraulic Fractures on Well Productivity. Presented at the SPE Hydraulic Fracturing Technology Conference, The Woodlands, Texas, 4–6 February. SPE-163837-MS. http://dx.doi.org/10.2118/163837-MS.
Bennion, D.B., Bietz, R.F., Thomas, F.B., et al. 1994. Reductions in the Productivity of Oil and Low Permeability Gas Reservoirs Due to Aqueous Phase Trapping. J Can Pet Technol 33 (9): 45–54. PETSOC-94-09-05. http://dx.doi.org/10.2118/94-09-05.
Bennion, D.B., Thomas, F.B., Bietz, R.F., et al. 1999. Remediation of Water and Hydrocarbon Phase Trapping Problems in Low Permeability Gas Reservoirs. J Can Pet Technol 38 (8): 39–48. PETSOC-99-08-01. http://dx.doi.org/10.2118/99-08-01.
Chowdiah, P. 1987. Laboratory Measurements Relevant to Two-Phase Flow in a Tight Gas Sand Matrix. Presented at the SPE Annual Technical Conference and Exhibition, Dallas, Texas, 27–30 September. SPE-16945-MS. http://dx.doi.org/10.2118/16945-MS.
Clarkson, C.R. 2012. Modeling 2-Phase Flowback of Multi-Fractured Horizontal Wells Completed in Shale. Presented at the SPE Canadian Unconventional Resources Conference, Calgary, Alberta, Canada, 30 October–November 1. SPE-162593-MS. http://dx.doi.org/10.2118/162593-MS.
Fakcharoenphol, P., Torcuk, M., Bertoncello, A., et al. 2013. Managing Shut-in Time to Enhance Gas Flow Rate in Hydraulic Fractured Shale Reservoirs: A Simulation Study. Presented at the SPE Annual Technical Conference and Exhibition, New Orleans, Louisiana, 30 September–2 October. SPE-166098-MS. http://dx.doi.org/10.2118/166098-MS.
Holditch, S.A. 1979. Factors Affecting Water Blocking and Gas Flow From Hydraulically Fractured Gas Wells. J Pet Technol 31 (12): 1515–1524. SPE-7561-PA. http://dx.doi.org/10.2118/7561-PA.
Ilk, D., Currie, S.M., Symmons, D., et al. 2010. A Comprehensive Workflow for Early Analysis and Interpretation of Flowback Data From Wells in Tight Gas/Shale Reservoir Systems. Presented at the SPE Annual Technical Conference and Exhibition, Florence, Italy, 19–22 September. SPE-135607-MS. http://dx.doi.org/10.2118/135607-MS.
Kamath, J. and Laroche, C. 2003. Laboratory-Based Evaluation of Gas Well Deliverability Loss Caused by Water Blocking. SPE J. 8 (1): 71–80. SPE-83659-PA. http://dx.doi.org/10.2118/83659-PA.
Le, D.H., Hoang, H.N., and Mahadevan, J. 2012. Gas Recovery From Tight Sands: Impact of Capillarity. SPE J. 17 (4): 981–991. SPE-119585-PA. http://dx.doi.org/10.2118/119585-PA.
Mahadevan, J., Sharma, M.M., and Yortsos, Y.C. 2007a. Evaporative Cleanup of Water Blocks in Gas Wells. SPE J. 12 (2): 209–216. SPE-94215-PA. http://dx.doi.org/10.2118/94215-PA.
Mahadevan, J., Sharma, M.M., and Yortsos, Y.C. 2007b. Capillary Wicking in Gas Wells. SPE J. 12 (4): 429–437. SPE-103229-PA. http://dx.doi.org/10.2118/103229-PA.
Mahadevan, J. and Sharma, M.M. 2005. Factors Affecting Cleanup of Water Blocks: A Laboratory Investigation. SPE J. 10 (3): 238–246. SPE-84216-PA. http://dx.doi.org/10.2118/84216-PA.
Settari, A., Sullivan, R.B., and Bachman, R.C. 2002. The Modeling of the Effect of Water Blockage and Geomechanics in Waterfracs. Presented at the SPE Annual Technical Conference and Exhibition, San Antonio, Texas, 29 September–2 October. SPE-77600-MS. http://dx.doi.org/10.2118/77600-MS.
Shanley, K.W., Cluff, R.M., and Robinson, J.W. 2004. Factors Controlling Prolific Gas Production From Low-Permeability Sandstone Reservoirs: Implications for Resource Assessment, Prospect Development, and Risk Analysis. AAPG Bull. 88 (8): 1083–1121. http://dx.doi.org/10.1306/03250403051.
Tannich, J.D. 1975. Liquid Removal From Hydraulically Fractured Gas Wells. J. Pet Technol 27 (11): 1309–1317. SPE-5113-PA. http://dx.doi.org/10.2118/5113-PA.
Wang, J. Y., Holditch, S.A., and McVay, D.A. 2010. Modeling Fracture-Fluid Cleanup in Tight-Gas Wells. SPE J. 15 (3): 783–793. SPE-119624-MS. http://dx.doi.org/10.2118/119624-MS.