Communications – electrical: acoustic wave systems and devices – Wellbore telemetering
Patent
1987-12-08
1989-08-29
Tarcza, Thomas H.
Communications, electrical: acoustic wave systems and devices
Wellbore telemetering
166336, 166335, G01V 140
Patent
active
048624268
ABSTRACT:
An improved method and apparatus for operating or setting equipment within a subsea marine wellhead from the surface having an indicating signal provided at the surface of the successful completion of such operation. The steps of the method include the lowering of a well component and the detecting and transmitting equipment on a running string from the surface; detecting the successful completion of the subsea operation, and transmitting to the surface of a signal signifying that the operations within the subsea well head have been successfully completed. The apparatus includes the running string, the detecting means which may be an acoustic detector or a ferrous metal detector or other suitable detector, a signal transmitter, means for supporting the detector and transmitter on the running string so that the well component can be properly lowered and positioned within the subsea wellhead and its proper landing, sealing or latching or other desired condition signalled to the surface to provide an indication that the operation has been completed.
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Baker Gerald S.
Cassity Thomas G.
Montgomery William C.
Taylor William M.
Wedel Alfred W.
Cameron Iron Works USA Inc.
Lobo Ian J.
Tarcza Thomas H.
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