Boring or penetrating the earth – Processes – Boring horizontal bores
Patent
1986-04-01
1987-03-24
Suchfield, George A.
Boring or penetrating the earth
Processes
Boring horizontal bores
166 50, 175 66, 175 72, 299 12, E21B 2106, E21B 33138, E21F 500
Patent
active
046518363
ABSTRACT:
A process provides for the recovering of methane gas from subterranean coalseams having sloughing, or caving, characteristics. A borehole is drilled in a generally horizontal direction into a subterranean coalseam and as the drilling progresses, a flushable borehole cake is formed on and in the walls of the horizontal borehole. The borehole cake prevents contemporaneously sloughing, or caving, of the boreholes during the drilling operation. A perforated liner may be inserted into the horizontal borehole and the borehole cake is then flushed out in order to allow methane gas present in the coalseam to enter the liner from which it is collected.
REFERENCES:
patent: 2245886 (1941-06-01), Weir et al.
patent: 3011567 (1961-12-01), Turner
patent: 4043136 (1977-08-01), Cherrington
patent: 4245699 (1981-01-01), Steeman
patent: 4273193 (1981-06-01), Tumpkins
patent: 4303274 (1981-12-01), Thakur
patent: 4317492 (1982-03-01), Summers et al.
patent: 4445574 (1984-05-01), Vann
patent: 4452489 (1984-06-01), Richards
patent: 4461359 (1984-07-01), Jones, Jr. et al.
patent: 4544208 (1985-10-01), Miller
Hackler Walter A.
Methane Drainage Ventures
Suchfield George A.
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