Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Submerging – raising – or manipulating line of pipe or cable...
Patent
1990-10-30
1991-09-03
Corbin, David H.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
Submerging, raising, or manipulating line of pipe or cable...
405158, F16L 116
Patent
active
050448277
ABSTRACT:
A method for severing and recovering a submerged pipeline is disclosed. The severing and recovering operation may be performed with divers or with a remotely operated vehicle. The deflated lift bag is lowered to the submerged pipeline. The deflated lift bag is positioned under the submerged pipeline and then inflated until a section of the pipeline has been raised off of the sea floor. A cutoff saw is next lowered to the raised section of the pipeline. The cutoff saw is clamped to the pipeline prior to severing the pipeline. The cutoff saw is then removed from the severed pipeline. A recovery head is lowered to the raised end of the severed pipeline. The recovery head is aligned and placed in the raised end of the severed pipeline. The recovery head is activated to establish a gripping relationship with the pipeline. A recovery cable is lowered and connected to the recovery head. The recovery cable is retrieved to recover the recovery head and the pipeline to the water surface.
REFERENCES:
patent: 3309879 (1967-03-01), Miller
patent: 3656309 (1972-04-01), Bultema
patent: 4234268 (1980-11-01), Scodino
patent: 4444528 (1984-04-01), Scodino et al.
patent: 4445804 (1984-05-01), Abdallah et al.
Gray David A.
Gray, Jr. Walter E.
Yemington Charles R.
Corbin David H.
Diverless Systems, Inc.
LandOfFree
Method for recovering wet buckled pipe does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for recovering wet buckled pipe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for recovering wet buckled pipe will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1004291