Rock Creek Methane from Multiple Coal Seams Completion Project - Geologic and Reservoir Characterization for the Multiple Coal Seams Completion Project. Volume 2

摘要

Commercialization of coalbed methane, especially in the eastern United States, has been primarily limited to gas production from a single coal seam per well. The Multi-Seam project is a multi-year joint venture investigating the combination of drilling, completion, stimulation, and production parameters required for the viable economic production of methane from shallow, multiple coal seams. Extensive geologic and reservoir characterization was performed during the early stages of the project to set the framework for evaluation of planned completion and production tests. Geologic evaluation included stratigraphic and structural evaluation, especially coal cleat, rock joint, coal seam gas content, coal chemistry, and coal petrography. Reservoir evaluation included single- and two-phase hydrologic testing of the coal seam reservoirs using single and multiple well configurations and in-situ state-of-stress testing of the target coal seams and the boundary rock.