Cretaceous Niobrara play
Journal Article
·
· Oil Gas J.; (United States)
OSTI ID:5960003
The Upper Cretaceous Niobrara formation yields natural gas of biogenic origin from structural closures on the shallow-dipping east flank of the Denver basin and the northern plunge of the Las Animas arch. Current production is from structural traps in the Smoky Hill member of the formation, with most of the fields located in Colorado and Kansas; however, several new fields have been found in the Nebraska portion of the basin. The potential for significant gas production exists in Nebraska's Kennedy and Salina basins and from parts of South Dakota, North Dakota, Montana, and Canada. The formation has high porosities and low permeabilities, requiring hydraulic-fracture stimulation for economical production. Producing intervals range from 1000 to 3200 ft. A study of the Niobrara play reveals that (1) new shallow gas reservoirs will be nontraditional, such as chalks or shaly sands, (2) the technology for finding these reservoirs now exists, (3) shows on mud logs (previously described as shale gas) could become the shallow gas plays of the future, and (4) new drilling and completion techniques will be needed to explore these gas reserves.
- OSTI ID:
- 5960003
- Journal Information:
- Oil Gas J.; (United States), Journal Name: Oil Gas J.; (United States) Vol. 79; ISSN OIGJA
- Country of Publication:
- United States
- Language:
- English
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