Secondary Natural Gas Recovery in the Appalachian Basin: Application of Advanced Technologies in a Field Demonstration Site, Henderson Dome, Western Pennsylvania

Abstract

The principal objectives of this project were to test and evaluate technologies that would result in improved characterization of fractured natural gas reservoirs in the Appalachian Basin. The Bureau of Economic Geology (Bureau) worked jointly with industry partner Atlas Resources, Inc. to design, execute, and evaluate several experimental tests toward this end.

The experimental tests were of two types: (1) tests leading to a low-cost methodology whereby small-scale microfractures observed in matrix grains of sidewall cores can be used to deduce critical properties of large-scale fractures that control natural gas production, and (2) tests to verify methods whereby robust seismic shear (S) waves can be generated to detect and map fractured reservoir facies.

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