ABSTRACT

ABSTRACT: The laboratory properties of Lac du Bonnet granite indicated that either the in situ properties were changing with depth or that the samples were changing with depth. Comparison of P-wave velocities in the samples and in situ confirmed the latter, i.e., drilling-induced damage was affecting the laboratory properties. The strength of the damaged samples indicated that drilling-induced damage affected the cohesion of the material, not the frictional properties, and that the cohesion loss cannot be recovered by applying a confining stress.

Keywords:
Upstream Oil & Gas, Lac du Bonnet granite, fracture zone 2, strength, envelope, compressive strength, p-wave velocity, reservoir geomechanics, stress Domain III, Reservoir Characterization
Subjects:
Reservoir Characterization, Reservoir geomechanics
This content is only available via PDF.
1994. A.A. Balkema - Permission to Distribute - American Rock Mechanics Association
You can access this article if you purchase or spend a download.