Mining or in situ disintegration of hard material – Processes – Breaking down by direct contact with fluid
Patent
1984-03-12
1986-03-11
Novosad, Stephen J.
Mining or in situ disintegration of hard material
Processes
Breaking down by direct contact with fluid
175 67, 175215, E21C 3706
Patent
active
045751552
ABSTRACT:
A pressurized fluid is injected into a subterranean cavity in a mineral deposit to support the overburden during hydraulic mining operations. A dynamic seal between the drill string and a surrounding casing retains fluid pressure within the cavity as the drill string rotates during mining operations. A blowout protector retains fluid pressure within the cavity while the drill string is raised or lowered within the cavity when it is necessary to add or remove drill string sections.
REFERENCES:
patent: 1820917 (1931-09-01), Langford
patent: 1851565 (1932-03-01), Claytor
patent: 2316005 (1943-04-01), Lachle
patent: 2745647 (1956-05-01), Gilmore
patent: 2772868 (1956-12-01), Brandt
patent: 3017342 (1962-01-01), Bulat et al.
patent: 3068167 (1962-12-01), White
patent: 3159562 (1964-12-01), Bichard et al.
patent: 3349843 (1967-10-01), Huitt
patent: 3455392 (1969-07-01), Prats
patent: 3497005 (1970-02-01), Pelopsky
patent: 3556597 (1971-01-01), Porter
patent: 3556980 (1980-01-01), Clark
patent: 3560371 (1971-02-01), Kaminsky
patent: 4096057 (1978-06-01), Porritt et al.
patent: 4130474 (1978-12-01), Anthony
patent: 4275926 (1979-06-01), Hodges
patent: 4289354 (1981-09-01), Zakiewicz
patent: 4296970 (1980-02-01), Hodges
patent: 4324652 (1980-10-01), Hack
patent: 4366988 (1983-01-01), Bodine
patent: 4406499 (1983-09-01), Yildirim
patent: 4415206 (1983-11-01), Hodges
Neuder William P.
Novosad Stephen J.
LandOfFree
Pressure differential mining tool does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pressure differential mining tool, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure differential mining tool will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2188853