Locator: 48390B.
Tag: halo spacing completion one mystery solved
One important observation in the Bakken is that most Fracture Driven Interactions or FDIs result in increased parent well productivity. [Should I say, wow, wow, wow?]
The positive impact of FUls may be due to the un-cemented completions that are typical for most parent wells in the Bakken.
This was a key observation that contributed to the discovery of ADD.
Over the past 10 years, extensive field measurements were used to calibrate fracture geometry and reservoir simulation models.
These models were the other piece to the ADD puzzle, enableing the evaluation of the ADD concept.
The modeling suggested that there is a potential to "augment" drainage by placing open-hole laterals in between the standard wells prior to fracturing. This paper documents the "discovery process" from field observations to detailed modeling.
The first ADD well was drilled in 2021, about 300 ft from the nearest offset "standard" well. There were four "standard" wells on this pad and extensive data acquisition, with permanent fiber optics and lateral pressure gauges in two wells and deployable fiber in the other two wells.
These measurements characterize the hydraulic fractures that intersected the ADD well. Upon flowback, the ADD wel produced frack sand and higher than expected total fluid rates. With 2.5 years of production, the productivity of the ADD well is about 40% of the "standard" offset wells, validating the ADD concept.
Two more ADD wells were drilled in 2022 to evaluate the limits of ADD productivity, confirming that ADD productivity decreases as distance increases from the offset standard wells.
ADD could lead ot a step-change inproductivity and recovery in unconventional developments.
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