<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "Cotton Valley Hydraulic Fracture Imaging Project: Feasibility of determining fracturebehavior using microseismic event locations and source parameters"^^ . "Spatial distributions in event locations and their sourceparameters (moment magnitude, seismic moment, sourceradius, P- and S-wave seismic energy release, and staticstress drop) were examined in order to provide insight intothe geometry and fracturing process associated with theStage 2 Cotton Valley (East Texas) fracture treatment ofMay 14, 1997. Events locations (79), based on P- and S-wave first arrivals and direction vectors, were obtained toan accuracy better than 24 m (9 m on average). Spatially,events occurred at two depths (2760 m and 2820 m), andranged from 260 m west to 330 m east of the treatmentwell. The events, varying in magnitude from -1.5 to -0.5,exhibited shear and non-shear failure components, asobserved in the S- to P-wave seismic energy ratios.Additionally, the ratios generally increased with distancefrom the treatment well. Scaling in seismic momentoutlined self-similar and non-similar trends, likely resultingfrom the presence of fluid. It is concluded that the analysisof microseismicity and their source characteristics have thepotential for outlining fracture behavior in the CottonValley."^^ . "1998-09" . . . "Society of Exploration Geophysicists"^^ . . "Society of Exploration Geophysicists"^^ . . . . . . . . . "Ted"^^ . "Urbancic"^^ . "Ted Urbancic"^^ . . "Richar J."^^ . "Zinno"^^ . "Richar J. Zinno"^^ . . "Engineering Seismology Group Canada Inc"^^ . . . "Union Pacific Resources Co"^^ . . . . . "Society of Exploration Geophysicist 68th International Annual Exposition and Annual Meeting"^^ . . . . . "HTML Summary of #2168 \n\nCotton Valley Hydraulic Fracture Imaging Project: Feasibility of determining fracturebehavior using microseismic event locations and source parameters\n\n" . "text/html" . . . "Collective properties of seismicity" . . . "Cotton Valley" . . . "Unconventional hydrocarbon extraction" . .