LLL Gas Stimulation Program. Quarterly progress report, April-June 1979

Technical Report · Mon Aug 20 04:00:00 EDT 1979

OSTI ID:5721288

Hanson, M E; Anderson, G D; Shaffer, R J; Lin, W; Towse, D F; Cleary, M P; Haimson, B C

This report summarizes the research and accomplishments of the LLL Gas Stimulation Program during the third quarter FY 1979. We have continued to analyze dynamic fracture propagation near interfaces. We have also formulated the equations describing pressure evolution in a propagating hydraulic fracture and the numerical simulation of several parameters in these equations has involved intensive study. Experimentally, we have continued our laboratory molding of the aspects of fracturing near interfaces with primary emphasis on the effects of frictional interfaces. Frictional measurements on both sandstone and limestone have shown that the frictional coefficient for sandstone decreases with water saturation, but increases with limestone. Changes in viscosity of the fracturing fluids tend to slow the rate at which the breakdown point is reached. We are also measuring the mechanical and breakage characteristics of reservoir material from the Mesa Verde sections of the Piceance Basin. Cross plotting techniques are being applied to evaluate porosity from logs taken in the Bowdoin area in Montana.

• Research Organization: California Univ., Livermore (USA). Lawrence Livermore Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5721288
• Report Number(s): UCRL-50036-79-2
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
030900* -- Natural Gas-- Artificial Stimulation
Plowshare-- (-1989)
CARBONATE ROCKS
COMMINUTION
CRACKS
ENHANCED RECOVERY
FRACTURE PROPERTIES
FRACTURING
GEOLOGIC DEPOSITS
HYDRAULIC FRACTURING
LIMESTONE
MECHANICAL PROPERTIES
NATURAL GAS DEPOSITS
PICEANCE CREEK BASIN
RESEARCH PROGRAMS
RESERVOIR ROCK
RESOURCES
ROCKS
SANDSTONES
SEDIMENTARY ROCKS
SIMULATION