Resource Abstract

2021 Bakken EOR Topical Report – Findings and Conclusions Derived from Several Bakken Enhanced Oil Recovery Studies

Date Published: 4/30/2021

Resource Abstract

This topical report summarizes findings and conclusions derived from several ongoing Bakken enhanced oil recovery studies conducted through the EERC-managed Bakken Production Optimization Program (BPOP). A survey of the nine known Bakken petroleum system enhanced oil recovery (EOR) injection tests and field pilots conducted in the North Dakota and Montana portions of the Williston Basin are discussed. Considerations for CO2 and rich gas application for Bakken EOR are provided, and the potential impact of CO2 EOR on North Dakota Bakken oil production is explored for several potential development scenarios using spreadsheet forecasting. Several knowledge gaps and potential advancements are enumerated that could improve the design, implementation, deployment, and forecasting of Bakken EOR. Results of several reservoir simulation case studies are used to explore methods for detecting and characterizing short circuiting of injected gas between horizontal wells and other conformance issues associated with multiwell cyclic huff ‘n’ puff.

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