Fluid handling – Processes
Patent
1989-05-01
1989-11-14
Rivell, John
Fluid handling
Processes
137560, 174 9F, H01B 100
Patent
active
048800252
ABSTRACT:
A BOP subsea control system utilizes hydraulic control of non-critical functions, and electro-hydraulic control of selected critical functions, such as the closing mode of one or more shear ram BOPs, one or more pipe ram BOPs and one or more annular type BOPs. In an alternative embodiment, the use of a conductive fluid in a hydraulic hose enables electric signals and hydraulic signals to be transmitted in the same hose.
REFERENCES:
patent: 3601519 (1971-08-01), Wanner et al.
patent: 3866678 (1975-02-01), Jeter
patent: 3878312 (1975-04-01), Bergh et al.
patent: 4013538 (1977-03-01), Schneider et al.
patent: 4095421 (1978-06-01), Silcox
Deepwater Hydraulic BOP Control Systems, by A. N. Vujasinovic, et al; presented at the SPE European Petroleum Conference held in London Oct. 20-22, 1986, Copyright 1986.
Harper, Jr. Roland G.
McMahan, Jr. James M.
Baroid Technology Inc.
Rivell John
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