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Does hydraulic-fracturing theory work in jointed rock masses [electronic resource].

Published
Los Alamos, N.M. : Los Alamos National Laboratory, 1983.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
Pages: 7 : digital, PDF file
Additional Creators
Los Alamos National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The hypocenter locations of micro-earthquakes (acoustic emissions) generated during fracturing typically are distributed three-dimensionally suggesting that fracturing stimulates a volumetric region, rather than the planar fracture theoretically expected. The hypocenter maps generated at six operating, or potential, HDR reservoirs in the US, Europe and Japan are examined in detail and the fracture dimensions are correlated with fracture injection volumes and formation permeability. Depsite the volumetric appearance of the maps we infer that the induced fractures are mainly planar and may propagate aseismically. The induced seismicity stems from nearby joints, which are not opened significantly by fracturing, but are caused to shear-slip because of local pore pressure.
Report Numbers
E 1.99:la-ur-83-1677
E 1.99: conf-831041-3
conf-831041-3
la-ur-83-1677
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
01/01/1983.
"la-ur-83-1677"
" conf-831041-3"
"DE83014190"
1983 Geothermal Resources Council's annual meeting, Portland, OR, USA, 24 Oct 1983.
Murphy, H.D.; Dash, Z.V.; Keppler, H.
Funding Information
W-7405-ENG-36
View MARC record | catkey: 14385018