Method and device for drilling for oil or gas

Details Method and device for drilling for oil or gas Method and device for drilling for oil or gas

1995-07-19

1997-07-15

Neuder, William P.

Boring or penetrating the earth

Boring a submerged formation

175 85, 166359, E21B 1900

Patent

active

056474431

ABSTRACT:
In a method and device for drilling for oil or gas in an underwater bed by means of a drilling rig with a drilling derrick disposed on a floating drilling platform or on an underwater bed, prior to the placing of a casing string, the placing of a riser string or the drilling of a hole, one or more parts of the casing string, the riser string or the drill string are pre-assembled on the drilling rig at one or more pre-assembly points which are in a position which is different from the position of the drilling derrick.

REFERENCES:
patent: 3895677 (1975-07-01), Bokenkamp
patent: 3987910 (1976-10-01), Brunato
patent: 4081087 (1978-03-01), Freeman, Sr.
patent: 4117941 (1978-10-01), McCleskey, Jr. et al.
patent: 4208158 (1980-06-01), Davies et al.
patent: 4624318 (1986-11-01), Aagaard
patent: 4735267 (1988-04-01), Stevens
PCT Publication No. WO 87/07674 filed Dec. 17, 1987.
World Oil, vol. 203, No. 4, Oct. 1986, pp. 41-43, Houston, Texas, U.S.; R. W. Mowell, et al.; "New semi features better heave response, vertical riser storage" p. 42, figures 3,4.

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