| Patent Number |
Title Of Patent |
Date Issued |
| 5190107 |
Heave compensated support system for positioning subsea work packages |
March 2, 1993 |
| A heave compensating support system is disclosed for positioning a subsea work package. The present invention provides a subsurface buoy with a lift line connected to the subsea work package and a compensating lift line having a catenary loop below its connection to the subsurface buoy o |
| 5188483 |
Subsea pipeline recovery clamp |
February 23, 1993 |
| A clamp is disclosed which is capable of latching on to a buckle arrestor on a subsea pipeline which has been severed in the vicinity of the buckle arrestor. By severing the pipe in this location and utilizing the buckle arrestor to latch the clamp on to the pipe, a simple and reliable c |
| 4810133 |
Tension leg platform tendon installation by deep catenary tow |
March 7, 1989 |
| Tendon segments are fabricated on a laybarge, then temporarily stored on seabottom. When a tension leg platform is moored, two tow vessels pick up one end each of the finished tendon and tow it to deep water, with the tendon in a catenary shape. Upon arrival in deep water, one end of the |
| 4789269 |
Winged pipelaying |
December 6, 1988 |
| Subsea pipelay is accomplished by flying the pipestring underwater with the use of wings which provide sufficient lift to maintain the pipestring off bottom as it is towed. |
| 4528757 |
Remotely operable apparatus and method for determining the distance and angular orientation betw |
July 16, 1985 |
| A remotely operable apparatus and method for determining from a remote location the distance and angular orientation between two structurally unconnected members, such as two sections of a subsea pipeline, is disclosed. The apparatus of the invention comprises generally two remotely |
