Boring or penetrating the earth – Processes – Boring with specific fluid
Reexamination Certificate
2005-04-27
2009-02-03
Beach, Thomas A (Department: 3671)
Boring or penetrating the earth
Processes
Boring with specific fluid
C175S424000, C166S358000
Reexamination Certificate
active
07484575
ABSTRACT:
An apparatus for deflecting a tubular string preferably comprising at least one side nozzle near the lower end of a first tubular string. The nozzle permits passage of a fluid therethrough from the first tubular string bore and deflects the first tubular string in a substantially horizontal direction. A second tubular string may be lowered over the deflected first tubular string. The second tubular string and the first tubular string are preferably lowered into the sea floor for maintaining their deflection. A method for deflecting a first tubular string and securing the first tubular string in the deflected state preferably comprises lowering the first tubular string axially so that the lower end of the first tubular string is near the sea floor. Preferably, a fluid, such as seawater, is propelled down through the bore of the first tubular string and through at least one side nozzle near the lower end of the first tubular, wherein the fluid moving through the side nozzle deflects the first tubular string. The first tubular string end is preferably lowered into the sea floor for maintaining the deflection of the first tubular string. A second tubular string may then be slidably lowered over the first tubular string for deflecting the second tubular string.
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Angelle Jeremy R.
Brasseux Guy R.
Beach Thomas A
Frank's Casing Crew & Rental Tools, Inc.
Matthews, Lawson & Bowick PLLC
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