论文信息 - Orientation of the stress field from breakouts in a crystalline well in a seismic active area

Orientation of the stress field from breakouts in a crystalline well in a seismic active area

Abstract The orientation of the regional stress field in the Swabian Jura was determined from borehole breakouts caused by stress accumulation at the borehole wall. The analysis is based on caliper data recorded in the Urach 3 geothermal well within an intervall of about 1450 m. The azimuths of the breakouts are consistent with depth and indicate a stress direction which is in good agreement with the interpretation of fault plane solutions of nearby earthquakes.

[1] D. I. Gough,et al. Stress orientations from oil-well fractures in Alberta and Texas , 1981 .

[2] G. Schneider,et al. The seismotectonic character of the September 3, 1978, swabian jura earthquake series , 1982 .

[3] J. Bell,et al. Stress orientations from borehole wall fractures with examples from Colorado, east Texas, and northern Canada , 1982 .

[4] E. A. Babcock. Measurement of Subsurface Fractures from Dipmeter Logs , 1978 .

[5] D. I. Gough,et al. Northeast-southwest compressive stress in Alberta evidence from oil wells , 1979 .