Analysis of Devonian Shale gas-production mechanisms

Technical Report · Wed Sep 22 04:00:00 EDT 1982

OSTI ID:6728395

Work was concentrated on the Devonian shales in 3 Ohio counties: Licking, Lawrence, and Meigs. The Devonian shale was determined to be a multi-porosity system, with a 1% matrix porosity and 10/sup -5/ to 10/sup -6/ md. There is a qualitative relation between the stress-ratio ang the intensity of fracture spacing. Five well stimulation techniques were evaluated: conventional well-bore shooting (r/sub w/ = 1.8 ft), an extensive radial stimulation (k/sub w/ = 30 ft), a small hydraulic fracture of 300 ft half-length, a large hydraulic fracture of 1000 ft half-length, and a combined radial stimulation and hydraulic fracture. Three of the six partitioned areas could contain up to 3.6 TcF of Devonian shale gas reserves. 43 figures, 11 tables.

• Research Organization: Lewin and Associates, Inc., Washington, DC (USA)
• DOE Contract Number: AC21-82MC19239
• OSTI ID: 6728395
• Report Number(s): DOE/MC/19239-1250; ON: DE83002855
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
030900* -- Natural Gas-- Artificial Stimulation
Plowshare-- (-1989)
BITUMINOUS MATERIALS
BLACK SHALES
CARBONACEOUS MATERIALS
CHATTANOOGA FORMATION
COMMINUTION
DEVONIAN PERIOD
ENERGY SOURCES
EXPLOSIVE FRACTURING
EXPLOSIVE STIMULATION
FEDERAL REGION V
FOSSIL FUELS
FRACTURING
FUELS
GEOLOGIC AGES
GEOLOGIC FORMATIONS
HYDRAULIC FRACTURING
MATERIALS
NATURAL GAS WELLS
NORTH AMERICA
OHIO
OIL SHALES
PALEOZOIC ERA
PRODUCTION
STIMULATION
USA
WELL STIMULATION
WELLS