Wells – Submerged well – Connection or disconnection of submerged members remotely...
Patent
1986-09-22
1988-02-23
Novosad, Stephen J.
Wells
Submerged well
Connection or disconnection of submerged members remotely...
166341, 166343, 166363, E21B 1502
Patent
active
047264241
ABSTRACT:
Apparatus is disclosed for use in testing a formation of and/or performing remedial work within a subsea well by means of a pipe string which is lowered through a conductor depending from a drilling vessel at the water surface and releasably connected at its lower end to a blowout preventor stack mounted on the head of the well. The string is landed within the well head for depending from the wellhead into the well bore, and a connected as part of the pipe string is adapted to open and close the string in response to the supply and exhaust of control fluid from a source at the surface, whereby the well may be controlled upon closing the string and raising of the upper end of the string above the means for opening and closing it and closing of the blowout preventor thereabove.
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Brochure--Texas Iron Works, Inc.
Neuder William P.
Novosad Stephen J.
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