UGR: Large Scale Foam Fracturing in the Devonian Shale-A Field Demonstration in West Virginia

A paper discussing the results of a hydraulic fracturing operation.

From the paper: "This report describes a large-scale foam fracturing operation performed on a Devonian Shale well in Jackson County, W. Va. Here the Energy Research and Development Administration (ERDA) in cooperation with Consolidated Gas Supply Corp. (CGSC) conducted a foam frac using 973 bbl. water, 2160 MSCF nitrogen, and 155,000 lbs sand proppant. The gross perforated formation interval is 3238-3629 ft. in W. L. Pinnel No. 12041 near Cottageville, Jackson County. The frac test was conducted to help evaluate the effectiveness of foam fracturing in the low-pressure water sensitive Devonian Shale of the Appalachian Basin.

The report details the frac job and the well clean-up period with field problems encountered. Also described is the post-frac logging program run to define created vertical fracture extent and gas influx into the well bore.

A post-frac deliverability test performed on the well is described."