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Hydraulic Fracturing of Wyoming Green River Oil Shale: Field Experiments, Phase I.

Authors
Thomas-HE; Carpenter-HC; Sterner-TE
Source
NTIS: PB 210 981 :18 pages
Link
NIOSHTIC No.
10008830
Abstract
The Bureau of Mines has conducted a field hydraulic fracturing experiment to determine the preferential orientation of induced fractures in oil shale at a depth of about 400 feet in the Green River Basin of Wyoming. The hydraulic fracturing treatment was performed by injecting extremely viscous water-base gel and 8- to 12- mesh sand into the oil shale through straddle packers set in an impermeable section of smooth-walled, 6 1/4-inch-diameter open hole. An impression packer proved that a horizontal fracture, which has an average width of about one-half inch at the borehole, was induced. A corehole drilled 100 feet from the fractured well intersected the fracture and confirmed its horizontal orientation. Because a horizontal fracture was successfully initiated, it is inferred that the creation of multiple, closely spaced horizontal fractures may be feasible in Green River Basin oil shale.
Publication Date
19720101
Document Type
IH; Report of Investigation;
Fiscal Year
1972
NTIS Accession No.
PB-210981
NTIS Price
A03
Identifying No.
RI 7596
NIOSH Division
LERC;
Source Name
NTIS: PB 210 981
State
WY;
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