Title:
DRILLING RIG ARRANGEMENT
Document Type and Number:
WIPO Patent Application WO/2015/007412
Kind Code:
A3
Abstract:
The invention provides a system for operating a drilling rig on a drilling vessel, the system comprising a drilling tower (2) having at least two segments (4, 5), a first segment (4) is fixedly connected to the drilling vessel (1), a second segment (5) is connected to the first segment (4), said second segment (5) is adapted to move longitudinally relative the first segment (4) by raising and lowering means. A tool (8) is suspended from at least one wire (16), said at least one wire (16) is extending over at least one sheave (7a, 7b) on top of the second segment (5), said at least one wire (16) is coupled to a passive compensator arrangement (20) and a winch (14), said passive compensator (20) is connected to the winch (14).
Inventors:
TARALDRUD PAAL ANDERS (NO)
REITEN ØYVIND VAAGLAND (NO)
REITEN ØYVIND VAAGLAND (NO)
Application Number:
PCT/EP2014/059061
Publication Date:
June 04, 2015
Filing Date:
May 05, 2014
Export Citation:
Assignee:
CASTOR DRILLING SOLUTION AS (NO)
International Classes:
E21B15/02; E21B19/09
Domestic Patent References:
| WO2006105764A1 | 2006-10-12 |
Foreign References:
| US20120291684A1 | 2012-11-22 | |||
| US20090133881A1 | 2009-05-28 | |||
| US6595494B1 | 2003-07-22 | |||
| US20030172599A1 | 2003-09-18 |
Attorney, Agent or Firm:
PROTECTOR IP CONSULTANTS AS (Oslo, NO)
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