Ahmed Saied Abou-Sayed
Land Surveyors in Salt Lake City, UT
License number
Utah 153230-9925
Issued Date
Nov 3, 1979
Expiration Date
Dec 31, 1999
Category
Engineer/Land Surveyor
Type
Engineer in Training - Obsolete
Address
Address
Salt Lake City, UT
Professional information
Process For Measuring The Fracture Toughness Of Rock Under Simulated Down-Hole Stress Conditions
US Patent:
4152941, May 8, 1979
Filed:
May 8, 1978
Appl. No.:
5/903962
Inventors:
Ahmed S. Abou-Sayed - Salt Lake City UT
Arfon H. Jones - Salt Lake City UT
Arfon H. Jones - Salt Lake City UT
Assignee:
Terra Tek, Inc. - Salt Lake City UT
International Classification:
G01N 312
US Classification:
73799
Abstract:
The present invention relates to a method for measuring the fracture toughness of rock as it would exhibit in its natural down-hole setting. Practicing the method of the present invention involves internally pressurizing a rock specimen while simultaneously exerting an increasing external horizontal stress thereon, raising simultaneously the internal pressure to maintain a desired relationship of exterior to interior pressures until the specimen fractures, which pressure, in relationship to the stress intensity factor and specimen geometry, provides the specimen fracture toughness as it would exist in a down-hole situation.