Johannes J Treu

US Patent:

6983714, Jan 10, 2006

Filed:

Jun 15, 2001

Appl. No.:

09/883459

Inventors:

Peter G. S. Dove - Magnolia TX, US
Johannes Jacobus Treu - Seabrook TX, US

Assignee:

Technip France - Courbevoie

International Classification:

B63B 21/50

US Classification:

114293, 1142302

Abstract:

In a method of and apparatus for offshore mooring, a clamping apparatus includes a clamping mechanism and a pulley. A mooring line connected to an anchor or a pendant line connected to a vessel to be moored extends through the clamping mechanism and around the pulley of the clamping apparatus. The distal end of the line extending through the clamping apparatus is connected to an anchor handling vessel. The anchor handling vessel is employed to apply a predetermined tension to the pendant line and the preset mooring line. A remote operated vehicle is then employed to actuate the clamping apparatus and to disengage the anchor handling vessel.

US Patent:

7044685, May 16, 2006

Filed:

Feb 27, 2004

Appl. No.:

10/789659

Inventors:

Pieter G. Wybro - Houston TX, US
Shukai Wu - Houston TX, US
Johannes J. Treu - Sealy TX, US
David E. Chaplin - Magnolia TX, US

Assignee:

Modec International LLC - Houston TX
Sea Engineering Associates, Inc. - Houston TX

International Classification:

E02D 29/09
E02B 17/08

US Classification:

405207, 4052231

Abstract:

A method and system for attaching a TLP to its tendons using pull-down lines to rapidly submerge the hull to installation draft while compensating for inherent hull instability during submergence and to provide motion arrest and aid in station keeping. The system includes tensioning devices mounted on the TLP, usually one for each tendon. Each tensioning device is equipped with a pull-down line which is connected to the corresponding tendon. The TLP hull is submerged to lock-off draft by applying tensions to the pull-down lines connected to the top of the tensions, or by a combination of applying tensions to the pull-down lines and ballasting the hull. As the tensioners take in pull-down line, the hull submerges, i. e. the draft increases. After lock-off, high levels of tension in the pull-down lines can be rapidly transferred to the connection sleeves by slacking the pull-down lines, thus allowing the TLP to be made storm-safe much faster than by prior art methods which require de-ballasting to tension the tendons.

US Patent:

7059262, Jun 13, 2006

Filed:

Nov 14, 2005

Appl. No.:

11/273416

Inventors:

Peter G. S. Dove - Magnolia TX, US
Johannes J. Treu - Seabrook TX, US

Assignee:

Technip France - Courbevoie

International Classification:

B63B 21/24

US Classification:

114210, 114293

Abstract:

In a method of and apparatus for offshore mooring, a clamping apparatus includes a clamping mechanism and a pulley. A mooring line connected to an anchor or a pendant line connected to a vessel to be moored extends through the clamping mechanism and around the pulley of the clamping apparatus. The distal end of the line extending through the clamping apparatus is connected to an anchor handling vessel. The anchor handling vessel is employed to apply a predetermined tension to the pendant line and the preset mooring line. A remote operated vehicle is then employed to actuate the clamping apparatus and to disengage the anchor handling vessel.

US Patent:

7452162, Nov 18, 2008

Filed:

May 4, 2006

Appl. No.:

11/381610

Inventors:

Pieter G. Wybro - Houston TX, US
Shukai Wu - Houston TX, US
Johannes J. Treu - Sealy TX, US
David E. Chaplin - Magnolia TX, US

Assignee:

Modec International, LLC - Houston TX
Sea Engineering Associates - Houston TX

International Classification:

B63B 21/50
B63B 21/24

US Classification:

4052231, 405224

Abstract:

A method and system for attaching a TLP to its tendons using pull-down lines to rapidly submerge the hull to installation draft while compensating for inherent hull instability during submergence and to provide motion arrest and aid in station keeping. The system includes tensioning devices mounted on the TLP, usually one for each tendon. Each tensioning device is equipped with a pull-down line which is connected to the corresponding tendon. The TLP hull is submerged to lock-off draft by applying tensions to the pull-down lines connected to the top of the tensions, or by a combination of applying tensions to the pull-down lines and ballasting the hull. As the tensioners take in pull-down line, the hull submerges, i. e. the draft increases. After lock-off, high levels of tension in the pull-down lines can be rapidly transferred to the connection sleeves by slacking the pull-down lines, thus allowing the TLP to be made storm-safe much faster than by prior art methods which require de-ballasting to tension the tendons.

US Patent:

20020129755, Sep 19, 2002

Filed:

Jan 12, 2001

Appl. No.:

09/760135

Inventors:

Dagfinn Hagen - Katy TX, US
Lars Hvam - Stavanger, NO
Rod Burley - Houston TX, US
Johannes Treu - Seabrook TX, US

International Classification:

B63B027/00

US Classification:

114/268000

Abstract:

An apparatus for installing subsea components includes the use of a motion compensator to counterbalance and offset load on the component and lowering wire caused by movement of the vessel as a result of waves and wind.

US Patent:

58551786, Jan 5, 1999

Filed:

Oct 30, 1997

Appl. No.:

8/961168

Inventors:

Johannes Jacobus Treu - Bellville TX
Peter George Scott Dove - Houston TX

Assignee:

Aker Marine, Inc. - Houston TX

International Classification:

B63B 2100

US Classification:

114230

Abstract:

A taut leg bow mooring system includes an anchor positionable on the floor of the sea. A riser line is normally secured to and extends upwardly from the anchor, and a submerged buoy is secured to the end of the riser line remote from the anchor. A line extends upwardly from the submerged buoy to a surface buoy. A mooring line is pivotally connected in the line extending from the submerged buoy to the surface buoy.

US Patent:

59920602, Nov 30, 1999

Filed:

Nov 17, 1997

Appl. No.:

8/971518

Inventors:

Johannes Jacobus Treu - Bellville TX
Peter George Scott Dove - Magnolia TX
Gordon R. Wilde - Houston TX

Assignee:

Aker Marine, Inc. - Houston TX

International Classification:

E02D 700

US Classification:

37345

Abstract:

In a method of and apparatus for anchor installation, a plate anchor is mounted at the bottom of a suction follower comprising a hollow cylinder having an open lower insertion end and a closable upper suspension end. The suction follower and the anchor secured thereto are engaged with the sea floor, whereupon water is pumped out of the suction follower causing the suction follower and the anchor to penetrate into the sea floor to a predetermined depth. The anchor is then disengaged from the suction follower, whereupon water is pumped into the suction follower to disengage the suction follower from the sea floor for recovery to the surface, leaving the anchor embedded in the sea floor.

US Patent:

61321451, Oct 17, 2000

Filed:

Apr 30, 1999

Appl. No.:

9/302761

Inventors:

Johannes Jacobus Treu - Bellville TX
Thomas M. Fulton - Katy TX
Francis Wade Abadie - Houston TX
Frederick Howard Culver - Covington LA

Assignee:

Aker Marine, Inc. - Houston TX

International Classification:

E02D 574

US Classification:

405224

Abstract:

A pumpskid comprises a frame adapted for connection to a remotely operated vehicle for positioning thereby. A male connector mounted on the frame is adapted for engagement with the suction port on a suction anchor. Clamping apparatus is provided for securing the male connector in engagement with the suction port of the suction anchor and thereby clamping the pumpskid in engagement with the suction anchor. A pump mounted on the frame is connected in fluid communication with the male connector by piping sections which include a port open to the surrounding sea. Valves and valve actuators are provided for causing the pump to cause water flow out of or into the suction anchor, as required.