Circle Ridge 


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to the Circle Ridge Fractured Reservoir Project

The Circle Ridge Field, on the Wind River Reservation in Wyoming, is operated for the Eastern Shoshone and Northern Arapaho Tribes by Marathon Oil Company. Because of the field's structural complexity, only 15 percent of the original oil in place has been recovered in over 50 years of operation. The reservoir rock has good porosity, but fluid flow in the reservoir is controlled by fractures.

Golder Associates and its research team will study the reservoir's rock, geologic structure and fracture systems to seek ways to improve oil recovery.


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Golder Associates 2000-2003