Abstract: A heave compensation and riser tensioning system and method for an offshore drilling or production operation. The system includes at least one motor assembly, wherein the motor assembly further includes at least one motor; a drum assembly bracket; at least one wire drum; and at least one wire rope. The at least one wire rope has a first end fixedly attached to the wire drum, and a second end fixedly attached to a riser tension ring. The at least one motor is coupled to the at least one wire drum via a gear assembly.
Type:
Grant
Filed:
February 24, 2017
Date of Patent:
June 23, 2020
Assignee:
CASTOR DRILLING SOLUTION AS
Inventors:
Paal Anders Taraldrud, Øyvind Vaagland Reiten, Christian Bertil Von Der Ohe, Tommy Skibelid, Øyvind Haugen, Runar Birkeland
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 with a passive compensator arrangement (20) and a winch (14), said passive compensator (20) is connected to the winch (14).
Type:
Grant
Filed:
May 5, 2014
Date of Patent:
January 2, 2018
Assignee:
Castor Drilling Solution AS
Inventors:
Paal Anders Taraldrud, Øyvind Vaagland Reiten
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 with a passive compensator arrangement (20) and a winch (14), said passive compensator (20) is connected to the winch (14).
Type:
Application
Filed:
May 5, 2014
Publication date:
December 29, 2016
Applicant:
Castor Drilling Solution AS
Inventors:
Paal Anders TARALDRUD, Øyvind Vaagland REITEN
Abstract: A device for connecting and disconnecting an active compensator actuator or additional passive compensator actuators from a passive compensated load bearing unit during operation and at static suspended condition. The device comprises a connection arrangement (7), which is operatively connected to a crown block. The connection device (7) is adapted to selectively grip a second end (18) of the heave compensator actuator (1). The device comprises further a safety arrangement (6) which are adapted to selectively grip the second end (18) of the heave compensator actuator (1) when it is not in engagement with the connection arrangement (7), the device comprises also a support arrangement (2), which is adapted to support the heave compensator actuator when it is not connected to the crown block (8).
Abstract: A device for connecting and disconnecting an active compensator actuator or additional passive compensator actuators from a passive compensated load bearing unit during operation and at static suspended condition. The device comprises a connection arrangement (7), which is operatively connected to a crown block. The connection device (7) is adapted to selectively grip a second end (18) of the heave compensator actuator (1). The device comprises further a safety arrangement (6) which are adapted to selectively grip the second end (18) of the heave compensator actuator (1) when it is not in engagement with the connection arrangement (7), the device comprises also a support arrangement (2), which is adapted to support the heave compensator actuator when it is not connected to the crown block (8).