Combination gas-producing and waste-water disposal well. [DOE patent application]

Patent · Thu Sep 03 04:00:00 EDT 1981

OSTI ID:5412280

Malinchak, R M

The present invention is directed to a waste-water disposal system for use in a gas recovery well penetrating a subterranean water-containing and methane gas-bearing coal formation. A cased bore hole penetrates the coal formation and extends downwardly therefrom into a further earth formation which has sufficient permeability to absorb the waste water entering the borehole from the coal formation. Pump means are disposed in the casing below the coal formation for pumping the water through a main conduit towards the water-absorbing earth formation. A barrier or water plug is disposed about the main conduit to prevent water flow through the casing except for through the main conduit. Bypass conduits disposed above the barrier communicate with the main conduit to provide an unpumped flow of water to the water-absorbing earth formation. One-way valves are in the main conduit and in the bypass conduits to provide flow of water therethrough only in the direction towards the water-absorbing earth formation.

• DOE Contract Number: AC21-78ET13137
• Assignee: Dept. of Energy
• Patent Number(s): None
• Application Number: ON: DE82015928
• OSTI ID: 5412280
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010500 -- Coal
Lignite
& Peat-- Products & By-Products
010800* -- Coal
Lignite
& Peat-- Waste Management
03 NATURAL GAS
030900 -- Natural Gas-- Artificial Stimulation
Plowshare-- (-1989)
ALKANES
COAL DEPOSITS
COAL SEAMS
DEGASSING
GEOLOGIC DEPOSITS
HYDROCARBONS
HYDROGEN COMPOUNDS
LIQUID WASTES
MANAGEMENT
METHANE
MINERAL RESOURCES
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
RECOVERY
RESOURCES
WASTE DISPOSAL
WASTE MANAGEMENT
WASTE WATER
WASTES
WATER
WELLS