Combination gas producing and waste-water disposal well
Patent
·
OSTI ID:864860
- McKeesport, PA
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.
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Number(s):
- US 4429740
- OSTI ID:
- 864860
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
/166/405/
absorb
barrier
below
bore
borehole
bypass
cased
cased bore
casing
coal
combination
combination gas
communicate
conduit
conduits
directed
direction
disposal
disposed
downwardly
earth
earth formation
entering
ethane gas
extends
extends downwardly
flow
formation
gas
gas producing
gas recovery
gas-bearing
main
means
methane
methane gas
one-way
one-way valve
one-way valves
penetrates
penetrating
permeability
plug
prevent
producing
provide
pump
pump means
pumping
recovery
subterranean
sufficient
therefrom
therethrough
towards
unpumped
valves
waste
waste water
waste-water
waste-water disposal
water
water entering
water flow
water-absorbing
water-containing
absorb
barrier
below
bore
borehole
bypass
cased
cased bore
casing
coal
combination
combination gas
communicate
conduit
conduits
directed
direction
disposal
disposed
downwardly
earth
earth formation
entering
ethane gas
extends
extends downwardly
flow
formation
gas
gas producing
gas recovery
gas-bearing
main
means
methane
methane gas
one-way
one-way valve
one-way valves
penetrates
penetrating
permeability
plug
prevent
producing
provide
pump
pump means
pumping
recovery
subterranean
sufficient
therefrom
therethrough
towards
unpumped
valves
waste
waste water
waste-water
waste-water disposal
water
water entering
water flow
water-absorbing
water-containing