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Title:
A method for offshore drilling equipment and offshore drilling
Document Type and Number:
Japanese Patent JP5989816
Kind Code:
B2
Abstract:
Offshore drilling installation comprising a platform selected from the group comprising a vessel, a pontoon, a jack-up, and further comprising a drill string drivingly connected with said platform and optionally provided with a heave motion compensator, wherein at its lower end the drill string is provided with a drill bit, and wherein a seabed template suspended with lift wires from the platform is placed on a seabed, and wherein clamping means mounted in the seabed template are provided for fixing the drill string relative to the seabed template, which clamping means are embodied as a chuck which is arranged for clamping the drill string whilst enabling the drill string's rotation.

Inventors:
ローイェン,ペーター
Application Number:
JP2015005478A
Publication Date:
September 07, 2016
Filing Date:
January 15, 2015
Export Citation:
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Assignee:
フーグロ エンジニアーズ ベーフェー
International Classes:
E21B7/12
Domestic Patent References:
JP2004517233A
JP2013221340A
JP11044170A
Attorney, Agent or Firm:
伊東 忠重
伊東 忠彦
大貫 進介