首页|A real-world impact of offset frac-hits by rate transient analysis in the Bakken and Three Forks,North Dakota,USA
A real-world impact of offset frac-hits by rate transient analysis in the Bakken and Three Forks,North Dakota,USA
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Production via multi-fractured horizontal wells with specific spacing units is a common development plan in shale plays.Commonly,operators drill and complete a single well in order to hold a 1280-acre spacing unit and once the acreage is secured across the asset,infill wells at each spacing unit are drilled so,depletion from the original(parent)well can be observed within the spacing unit.This will increase the likelihood of existing wells to experience inter-communication when infill wells are hydraulically fractured which has detrimental effects.Hence,understanding the effects of well timing and spacing on the performance of the overall spacing unit is critical to choose an appropriate development plan.In this regard,rate transient analysis(RTA)is an effective way to quantify the impact of offset frac-hits,hinting the changes in reservoir properties such as stimulated reservoir volume(SRV)and well productivity.In this real-world study,we used pseudo normalized pressure versus material balance square root of time plots to determine the impact of offset frac-hits on existing wells in Williston Basin,ND.The slope of the superposition time plot is inversely proportional to the product of the contacted surface area(AJ and the square root of reservoir permeability(Vk),A
Rate transient analysisOffset frac-hitsHydraulic fracturingBakken and Three Forks
Amin Taghavinejad、Cody Brown、Mehdi Ostadhassan
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Department of Petroleum Engineering,Amirkabir University of Technology,Tehran,Iran
Department of Petroleum Engineering,University of North Dakota,Grand Forks,ND 58202,USA
Key Laboratory of Continental Shale Hydrocarbon Accumulation and Efficient Development,Ministry of Education,Northeast Petroleum University,Daqing 163318,China
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