Reservoir and Completion Considerations for the Refracturing of Horizontal Wells
- Robert D. Barree (Barree & Associates) | Jennifer L. Miskimins (Colorado School of Mines) | Kevin J. Svatek (Barree & Associates)
- Document ID
- Society of Petroleum Engineers
- SPE Production & Operations
- Publication Date
- February 2018
- Document Type
- Journal Paper
- 1 - 11
- 2018.Society of Petroleum Engineers
- Re-fracturing, Completion efficiency, Horizontal wells
- 18 in the last 30 days
- 831 since 2007
- Show more detail
- View rights & permissions
|SPE Member Price:||USD 10.00|
|SPE Non-Member Price:||USD 30.00|
Horizontal-well developments, focused on transverse hydraulic-fracture stimulation, have evolved rapidly during the past decade. Many of these completions may have missed or bypassed significant reserves that were intended to be produced from the well. This paper discusses the potential reasons for these inefficient completions, candidate selection for refracturing, and the impacts of offset depletion/infill wells on refracturing.
Rate-transient post-treatment stimulation analysis is a powerful tool that can help determine whether and when a horizontal well is receptive to refracturing. Such analysis can help determine whether a well is underperforming, and if that underperformance is caused by an inefficient completion or by reservoir conditions. The paper discusses the importance of appropriate well conditioning/unloading before determining if a refracturing may or may not be successful. The impacts of “bashing” into offset depletion during refracturing treatments are also discussed, along with appropriate design considerations to minimize such impacts.
Refracturing can be an important tool to the industry, and it deserves the attention that it is currently receiving. However, the success of such treatments is not guaranteed in every well, and the criteria for candidate selection should be a top focus when evaluating such a program.
|File Size||1 MB||Number of Pages||11|
Agarwal, R. G., Gardner, D. C., Kleinsteiber, S. W. et al. 1999. Analyzing Well Production Data Using Combined-Type-Curve and Decline-Curve Analysis Concepts. SPE Res Eval & Eng 2 (5): 478–486. SPE-57916-PA. https://doi.org/10.2118/57916-PA.
Allison, D., Curry, W., and Todd, B. 2011. Restimulation of Wells Using Biodegradable Particulates as Temporary Diverting Agents. Presented at the Canadian Unconventional Resources Conference, Calgary, 15–17 November. SPE-149221-MS. https://doi.org/10.2118/149221-MS.
Arevalo-Villagran, J. A., Wattenbarger, R. A., Samaniego-Verduzco, F. et al. 2001. Production Analysis of Long-Term Linear Flow in Tight Gas Reservoirs: Case Histories. Presented at the SPE Annual Technical Conference and Exhibition, New Orleans, 30 September–3 October. SPE-71516-MS. https://doi.org/10.2118/71516-MS.
Barree, R. D., Cox, S. A., Miskimins, J. L. et al. 2015. Economic Optimization of Horizontal-Well Completions in Unconventional Reservoirs. SPE Prod & Oper 30 (4): 293–311. SPE-168612-PA. https://doi.org/10.2118/168612-PA.
Barree, R. D. and Miskimins, J. L. 2015. Calculation and Implications of Breakdown Pressures in Directional Wellbore Stimulation. Presented at the SPE Hydraulic Fracturing Technology Conference, The Woodlands, Texas, 3–5 February. SPE-173356-MS. https://doi.org/10.2118/173356-MS.
Ilk, D., Anderson, D. M., Stotts, G. W. J. et al. 2010. Production-Data Analysis–Challenges, Pitfalls, Diagnostics. SPE Res Eval & Eng 13 (3): 538–552. SPE-102048-PA. https://doi.org/10.2118/102048-PA.
Leonard, R. S., Woodroof, R. A., Senters, C. W. et al. 2016. Evaluating and Optimizing Refracs—What the Diagnostics Are Telling Us. Presented at the SPE Annual Technical Conference and Exhibition, Dubai, 26–28 September. SPE-181676-MS. https://doi.org/10.2118/181676-MS.
Palisch, T. T., Vincent, M. C., and Handren, P. J. 2008. Slickwater Fracturing—Food for Thought. Presented at the SPE Annual Technical Conference and Exhibition, Denver, 21–24 September. SPE-115766-MS. https://doi.org/10.2118/115766-MS.
Pohler, S. A., Holmes, W. D., and Cox, S. A. 2010. Annular Velocity Enhancement With Gas Lift as a Deliquification Method for Tight Gas Wells With Long Completion Intervals. Presented at the SPE Unconventional Gas Conference, Pittsburgh, Pennsylvania, 23–25 February. SPE-130256-MS. https://doi.org/10.2118/130256-MS.
Veeken, K., Hu, B., and Schiferli, W. 2010. Gas-Well Liquid-Loading-Field-Data Analysis and Multiphase-Flow Modeling. SPE Prod & Oper 25 (3): 275–284. SPE-123657-PA. https://doi.org/10.2118/123657-PA.
Vincent, M. C. 2010. Refracs—Why Do They Work, and Why Do They Fail in 100 Published Field Studies? Presented at the SPE Annual Technical Conference and Exhibition, Florence, Italy, 19–22 September. SPE-134330-MS. https://doi.org/10.2118/134330-MS.
Wheaton, B., Haustveit, K., Deeg, W. et al. 2016. A Case Study of Completion Effectiveness in the Eagle Ford Shale Using DAS/DTS Observations and Hydraulic Fracture Modeling. Presented at the SPE Hydraulic Fracturing Technology Conference, The Woodlands, Texas, 9–11 February. SPE-179149-MS. https://doi.org/10.2118/179149-MS.