Evolving Completion Designs to Optimize Well Productivity from a Low Permeability Oil Sandstone Turner Reservoir in the Powder River Basin—One Operator's Experience
- Karn Agarwal (Liberty Oilfield Services) | Justin Kegel (Ballard Petroleum, LLC) | Bryce Ballard (Ballard Petroleum, LLC) | Ely Lolon (Liberty Oilfield Services) | Michael Mayerhofer (Liberty Oilfield Services) | Leen Weijers (Liberty Oilfield Services) | Howard Melcher (Liberty Oilfield Services) | Sarah Compton (Liberty Oilfield Services) | Paul Turner (Liberty Oilfield Services)
- Document ID
- Society of Petroleum Engineers
- SPE Hydraulic Fracturing Technology Conference and Exhibition, 5-7 February, The Woodlands, Texas, USA
- Publication Date
- Document Type
- Conference Paper
- 2019. Society of Petroleum Engineers
- 2.5.2 Fracturing Materials (Fluids, Proppant), 4.1.2 Separation and Treating, 3 Production and Well Operations, 2.2 Installation and Completion Operations, 3 Production and Well Operations, 2.1 Completion Selection and Design, 5.5 Reservoir Simulation, 5.5.8 History Matching, 2.4 Hydraulic Fracturing, 2 Well completion, 1.6 Drilling Operations, 4.1 Processing Systems and Design, 4 Facilities Design, Construction and Operation, 5 Reservoir Desciption & Dynamics, 2.1 Completion Selection and Design
- Turner, Wyoming, Completion Optimization, Frac, Powder River
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As the Powder River Basin (PRB) development continues and more wells are drilled, identifying best completion practices is critical to economic success. This operator has completed several Turner horizontal wells drilled at 10,300-11,000 ft TVD using crosslinked gel with encouraging results. Although reservoir quality varies in the basin, the Turner interval is more than 30 ft thick in the area of interest (AOI) in Campbell County, Wyoming. In this area, production history matched permeability ranges from 0.005 to 0.1 mD, with pore pressure gradient from 0.55 to 0.64 psi/ft. Fracture modeling and production history matching/sensitivities were performed on a few horizontal wells. This paper discusses the results of this modeling and history matching, and it summarizes the evolution of Turner Formation fracture treatment designs, that were done by one operator to maximize the return on investment.
The operator collected core data, open hole logs, and Diagnostic Fracture Injection Test (DFIT) data. The objectives of this study were to: a) determine reservoir parameters from DFIT, b) estimate fracture height growth, fracture half-length, and conductivity for Turner crosslinked gel fracs, c) determine the most appropriate perforation cluster or fracture spacing, as well as treatment rate, fluid/proppant loading, and proppant types/sizes based on the expected long-term production performance, d) compare the estimated production of cemented sleeve vs. plug-and-perf completions, and e) perform multivariate analysis of public production and completion data to compare with the detailed physical modeling.
The results presented in this paper show well-performance predictions as a function of sleeve/perforation cluster spacing, treatment size, proppant type, mesh size, and pump rate. Implications for implementation of a certain treatment and completion design are discussed in detail.
|File Size||2 MB||Number of Pages||20|
Dolton, G. L. and Fox, J.E. 1996. Powder River Basin Province (033), in Gautier, D.L., Dolton, G.L., Varnes, K.L., and Takahashi, K.I., eds., 1995 National Assessment of United States Oil and Gas Resources—Results, methodology, and supporting data: U.S. Geological Survey Digital Data Series DDS-30, one CD-ROM, Release 2.
Ruhle, W. and Orth, J. 2015. Production Trends from the Exploitation of Horizontal Completions in the Upper Cretaceous Formations of the Powder River Basin: A Look Back on Five Years of Development. Presented at the SPE/CSUR Unconventional Resources Conference, Calgary, Alberta, Canada, 20-22 October. SPE-175957-MS.