Re-Designing from Scratch and Defending Offset Wells: Case Study of a Six-Well Bakken Zipper Project, McKenzie County, ND
- Peter Bommer (Abraxas Petroleum Corporation) | Marc Bayne (Abraxas Petroleum Corporation) | Michael Mayerhofer (Liberty Oilfield Services) | Mike Machovoe (Liberty Oilfield Services) | Maciej Staron (PetraNova Engineering Corp.)
- Document ID
- Society of Petroleum Engineers
- SPE Hydraulic Fracturing Technology Conference and Exhibition, 24–26 January, The Woodlands, Texas, USA
- Publication Date
- Document Type
- Conference Paper
- 2017. Society of Petroleum Engineers
- 2.1 Completion Selection and Design, 2.1 Completion Selection and Design, 2.3 Completion Monitoring Systems/Intelligent Wells, 4.1 Processing Systems and Design, 2 Well completion, 4 Facilities Design, Construction and Operation, 4.1.2 Separation and Treating, 2.3.6 Tubular Optimisation
- Fracturing, Bakken
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Completion optimization in unconventional wells has been an industry goal since the earliest stages of horizontal development. Motivated by the desire for higher financial returns and fueled by the rise of both technology and big data, optimization efforts have become de rigueur. This paper describes an optimization project in which a legacy Bakken completion design was set aside to make way for a "blank slate" analysis. Addressed in this context are the optimization research challenges faced by smaller operators in the play. The resulting re-designed completion was applied on a recent six-well zipper frac in east-central McKenzie County yielding a production increase of 13.5% with a cost reduction of 3.6% compared to legacy completions.
On the same zipper project, an active well defense strategy on existing producers offsetting the six-well pad was also employed. With the increase in development density across the Bakken play, well interference associated with fracturing treatments is becoming increasingly common. While such well interference, known as "frac hits", can produce a variety of effects, including some that are beneficial, they are generally considered to be undesirable. Included in this paper is a discussion of the operator's frac hit experience and the results of the active well defense strategies applied in this project.
|File Size||3 MB||Number of Pages||20|
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