Apparatus for cementing from a floating vessel

Details Apparatus for cementing from a floating vessel Apparatus for cementing from a floating vessel

1980-08-04

1982-03-16

Purser, Ernest R.

Wells

Submerged well

Means removably connected to permanent well structure

166129, 166186, E21B 3412, E21B 4301

Patent

active

043196381

ABSTRACT:
An apparatus is provided for cementing an oil well borehole from a floating vessel. A sliding sleeve cementing valve is adapted to be interconnected with a casing string. A drill string to be lowered into the casing string includes a drill pipe, an opening positioner connected to the drill pipe for opening the cementing valve, an anchor connected to the opening positioner to provide sufficient resistance between the drill string and casing string to operate a motion compensator on the floating vessel, and an isolation packer connected to the anchor.

REFERENCES:
patent: 4042014 (1977-08-01), Scott

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