Method for producing natural gas from a coal seam

Patent · Tue Jul 12 00:00:00 EDT 1988

OSTI ID:6784787

Puri, R; Yee, D; Seidle, J P

A method is described of producing natural gas from a coal seam, comprising: (a) producing natural gas and liquid from a coal seam through at least one well; (b) ceasing the production of natural gas and liquid from the coal seam and injecting natural gas into the coal seam through at least one well at a pressure higher than coal seam pressure but lower than fracture pressures of immediately adjacent formations above or below the coal seam; and (c) subsequently producing natural gas and liquid from the coal seam through at least one well.

• Assignee: Amoco Corp., Chicago, IL
• Patent Number(s): US 4756367
• OSTI ID: 6784787
• Resource Relation: Patent File Date: Filed date 28 Apr 1987
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
01 COAL, LIGNITE, AND PEAT
COAL SEAMS
DEGASSING
NATURAL GAS
PRODUCTION
ENHANCED RECOVERY
GAS INJECTION
GEOLOGIC FRACTURES
NATURAL GAS WELLS
PRESSURE DEPENDENCE
WELL STIMULATION
COAL DEPOSITS
ENERGY SOURCES
FLUID INJECTION
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
GEOLOGIC DEPOSITS
GEOLOGIC STRUCTURES
MINERAL RESOURCES
RECOVERY
RESOURCES
STIMULATION
WELLS
030900* - Natural Gas- Artificial Stimulation
Plowshare- (-1989)
012030 - Coal
Lignite
& Peat- Underground Mining- (1987-)