In situ fracture related to energy and resource recovery

Conference · Mon Jan 01 04:00:00 EST 1979

OSTI ID:5783806

Schock, R N; Hanson, M E; Swift, R P; Walton, O R

Many resources require fracturing of rock before recovery. This is often accomplished by energy deposition under in situ conditions. The mechanical properties of the medium, confining pressure, pore fluid pressure, temperature, and energy deposition rate are among the important factors leading to an understanding and prediction of fracture production. Recent experimental and modeling studies have improved understanding of the effects of confining pressure on explosive-induced fracturing in small-scale blocks, effect of timing of multiple explosives, rate of pressurization on hydraulic fracture production, changing material properties on hydraulic pressure-produced fracture initiation and orientation, and material properties on rubble behavior after fracturing.

• Research Organization: California Univ., Livermore (USA). Lawrence Livermore Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5783806
• Report Number(s): UCRL-82731; CONF-790709-19
• Country of Publication: United States
• Language: English

Related Subjects

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42 ENGINEERING
422000 -- Engineering-- Mining & Underground Engineering-- (1980-)
COMMINUTION
EXPLOSIVE FRACTURING
FRACTURING
HYDRAULIC FRACTURING
PRESSURE DEPENDENCE
ROCKS
STRESSES