Onshore/offshore method and apparatus for drilling

Details Onshore/offshore method and apparatus for drilling Onshore/offshore method and apparatus for drilling

1977-04-15

1979-05-29

Blix, Trygve M.

Hydraulic and earth engineering

Marine structure or fabrication thereof

With work deck vertically adjustable relative to floor

405209, 114 56, 114265, 9 8P, B63B 3500

Patent

active

041565770

ABSTRACT:
A self-propelled drilling tender has mounted therewith a drilling rig and a jack-up platform adapted to be mounted on the drilling tender or ship for transportation from one drilling site to another site. Thereafter drilling operations occur with the drilling on the ship thus enabling the ship to operate as a drilling ship or the platform legs can be lowered to jack the platform off the ship to thereby enable the platform to operate independently as a drilling platform. Further, if desired, the rig can be disassembled or lifted from the drilling platform and moved to land operations adjacent or in the vicinity of the drilling platform and ship to thereby enable land drilling operations to occur.

REFERENCES:
patent: 3078680 (1963-02-01), Wepsala
patent: 3946864 (1976-03-01), Sumner
patent: 3951097 (1976-04-01), Clark
patent: 3996755 (1976-12-01), Kalinowski

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