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Paying it Forward: How an Emerging Unconventional Play can Hit the Ground Running

Conference · · Proceedings. SPE Eastern Regional Meeting
DOI:https://doi.org/10.2118/201808-ms· OSTI ID:1833711

While every tight oil play is unique, there are lessons that can be transferred from one play to another to improve the efficiency and pace of production operations and development. These improvements may not fit precisely in every basin or play but generally hold to themes that can be tested against and built upon. Themes such as the quantity of proppant, longer lateral length, or the number of stages can be directly tied to increased productivity. However, there are diminishing returns on these investment activities for which each operator, within a given play, will be required to identify and mitigate against.

This is especially true as the industry steps in and begins developing new tight oil plays. In their nascent stages, these plays may have limited well penetrations and, as a result, limited geological and performance data from which to extrapolate. Pulling together an understanding of where the industry currently resides in terms of how to exploit these resources can provide a boost in terms of working towards greatly improved well completions.

In 2019, the US EIA estimated that nearly 8 million barrels of oil per day were produced from tight oil reservoirs in the United States (US EIA, 2020). This represents over 60% of the domestic crude production, originating from multiple reservoirs in the Permian Basin (TX) as well as the Bakken (MT, ND), Eagle Ford (TX), Niobrara (CO, WY), and Anadarko Basin (OK) formations, among others. As such, there are 1,000s of wells across these numerous tight oil plays that can relate an informative story. To build this story, the interplay of geology, well spacing, lateral length, and stimulation, all critical to economic success, will be explored.

This paper proposes to look back at these mature tight oil (and gas) basins and bring forth an understanding of what lessons can be applied to the emerging Powder River Basin tight oil reservoirs (Mowry and the Turner/Frontier). The authors will delve into the four broad topics of geology, well spacing, lateral length, and stimulation, highlighting case studies to demonstrate those lessons from established tight oil plays that will underpin planned activities at a Field Laboratory Test Site in the southern Powder River Basin.

Research Organization:
Univ. of Wyoming, Laramie, WY (United States)
Sponsoring Organization:
USDOE Office of Fossil Energy (FE)
DOE Contract Number:
FE0031779
OSTI ID:
1833711
Report Number(s):
DOE-UWYO-31779
Journal Information:
Proceedings. SPE Eastern Regional Meeting, Vol. 2021; Conference: SPE Eastern Regional Meeting, Farmington, Pennsylvania, 2-3 November 2021; Related Information: Day 2 Wed, November 03, 2021; ISSN 2643-1181
Publisher:
Society of Petroleum Engineers (SPE)
Country of Publication:
United States
Language:
English

References (9)

The Impact of Fracture Surface Area to Rock Volume Ratio on Spontaneous Imbibition in Tight Rocks January 2019
Experimental Study of Proppant Transport in Complex Fractures with Horizontal Bedding Planes for Slickwater Fracturing January 2019
Fracture Design Considerations in Horizontal Wells Drilled in Unconventional Gas Reservoirs January 2009
Experimental Investigation of Propped Fracture Conductivity and Proppant Diagenesis January 2019
Evaluating Horizontal Well Placement and Hydraulic Fracture Spacing/Conductivity in the Bakken Formation, North Dakota October 2009
Drill Bit Geomechanics and Fracture Diagnostics Optimize Completions in the Powder River Basin January 2019
Geology of the Turner Sandstone, Finn Shurley Field, Powder River Basin, Wyoming January 2019
Preservation of lateral pressure disequilibrium during the uplift of shale reservoirs April 2020
Laboratory Measurement of Hydraulic Fracture Conductivities in the Barnett Shale January 2013