Abstract

ABSTRACT The phenomenological theories of gas production, from a rock mechanics vantage point, are related to the characteristics of the natural fracture systems and their subsequent interaction with the induced fracturing. The dominant role of the in situ stresses and formation mechanical properties for reservoir site selection and hydraulic fracture treatment are quantified in this paper. An illustration of basement-sedimentary cover interaction and salient mechanisms responsible for stress reorientation and tectonic relief in the Rome trough region of the Appalachian Plateau is given. In addition, examples detailing induced fracture dimension evaluations along with a discussion of factors governing fracture width, vertical fracture migration and fracture length are presented. Finally, the suitability of different stimulation treatments is discussed.

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