|
Match
|
Document |
Document Title |
|
|
7621697 |
Abandonment and recovery system and method, and cable connector
A system for abandonment or recovery of a load, e.g., a pipeline or sub-sea structure, includes: at least two cables, each with a length adapted for a certain water depth and with a first end and a...
|
|
|
7559721 |
Towing and installation method for deepwater pipelines and risers
A deepwater pipeline is towed to a predetermined position by a bottom towing method with a leading end of the pipeline attached to a towing vessel and the trailing end of the pipeline attached to a...
|
|
|
7507055 |
Apparatus and method for laying down, abandoning, and recovering a pipe on the sea floor
Disclosed are a method and apparatus for laying down, abandoning and/or recovering a pipe on the sea floor. During lay-down and abandonment, the pipe is lowered by a high capacity winch to an...
|
|
|
7182550 |
Abandonment and recovery head apparatus
An abandonment and recovery head apparatus comprises a head member. A lift member is moveably coupled to the head member. A retaining device is operable to hold the lift member in an accessible...
|
|
|
7112009 |
Apparatus and method for horizontal subsea connection
An apparatus for substantially horizontal connection of a conduit to a subsea structure: A frame connectable to and supportable by the subsea structure, the frame has a docking device operable to...
|
|
|
7104728 |
Method for deploying seafloor equipment
A method for deploying and retrieving seafloor equipment modules is disclosed. A conveyor has a fixed end and a free end. The conveyor is deployed into a body of water until the free end reaches,...
|
|
|
7101116 |
Cable or pipe retrieval and burial apparatus and methods
An apparatus for retrieving a cable or pipe buried under water in bed material comprises a shank ( 2 ) having a first surface and a fluke member ( 5 ) having a second surface. When the apparatus is...
|
|
|
7086807 |
Subsea connection apparatus
Apparatus for connecting a conduit to a subsea structure includes a frame connectable to the subsea structure by a docking mechanism, a conduit handling mechanism on the frame to facilitate...
|
|
|
6752569 |
Underwater tool
To obviate the need for hydraulic lines, from the surface, external water pressure is used to compress a seal member and form a seal with a surrounding pip. Valve is opened at depth to allow water...
|
|
|
6729802 |
System and method for abandoning and recovering pipeline
A method of abandoning a pipeline ( 2 ) being laid by a vessel having an A/R system, wherein a sealine ( 2, 11, 13 ) is initially held by a pipe laying and tensioning arrangement. The method...
|
|
|
6402428 |
Pipeline recovery tool
A pipeline recovery tool is made from steel plates welded together instead of forging and machining. The rigged-up tool is lowered over the pipeline and engaged with the pipeline such that a fixed...
|
|
|
6290431 |
Diverless subsea hot tap system with lateral pipe tie-in
A diverless process of tapping a pressurized subsea pipeline without removing the pipeline from service. The process includes the steps of lowering and landing a measurement tool onto the pipeline...
|
|
|
5934832 |
Pipeline recovery apparatus
A pipeline recovery apparatus which automatically locks onto the exterior surface of a remote and/or subsea pipeline by allowing contact of interlocking pivoted bowl half sections in a downwardly...
|
|
|
5919003 |
Marine pipeline recovery system and method of recovering marine pipeline
A pipeline recovery system (10) is disclosed having a recovery vessel (11) with an upper deck (12) and a pivotal pipeline ramp (13) mounted to the bow of the vessel. The system also includes a...
|
|
|
5902072 |
Modular seismic cable handling system with knockdown container
A modular seismic cable handling system contained in a knockdown intermodal freight container, the freight container configured for secure containment and shipment of the system, as well as being...
|
|
|
5890841 |
Subsea cable installation
The present invention relates to a method and means for transferring a construction--consisting of an elongated article (2,21) provided with at least one termination (3,20,40)--between a vertical...
|
|
|
5655753 |
Ocean bottom cable handling system and method of using same
A marine seismic cable deployment and retrieval system for utilization in conjunction with a marine vessel. The present, searched for invention teaches a large wheel mounted in the front of the...
|
|
|
5601383 |
Excavation method and apparatus for accessing underground pipes of pipelines for gas, oil, and the like for maintenance and/or restoration
A method consisting in forming a preliminary excavation along the pipe and in then digging, starting from the bottom of the preliminary excavation, two lateral trenches that are adjacent to the...
|
|
|
5580187 |
Apparatus for laying and/or retrieving elongate flexible elements
Apparatus for laying and/or retrieving elongate flexible elements, such as pipes and cables having accessories at spaced intervals, is mounted on a floating vessel such as a barge an comprises two...
|
|
|
5437517 |
Method for automatically repairing underwater pipelines, particularly suitable for great depths, and the relative apparatus
A method, using a crane-equipped depot ship, for automatically repairing an underwater pipeline even if installed at great depth, comprising substantially the following steps: cutting off the...
|
|
|
5318384 |
Device for depositing and recovering a heavy load on the ocean floor
A device for depositing and recovering a heavy load on the ocean floor including a first part which can be attached mechanically to a handling and recovery cable and a second part which can be...
|
|
|
5199659 |
Seismic cable retrieval apparatus and method
A marine cable retrieval apparatus for retrieving marine seismic cable on board a ship which reduces longitudinal tension force on the cable at the cable storage reel when the cable storage reel...
|
|
|
5188483 |
Subsea pipeline recovery clamp
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...
|
|
|
5181798 |
Double pipe turntable and stinger
A pipelay apparatus and method comprising a steel turntable and a stinger pipe guide which can be supported on the construction deck of a repair vessel or drill ship are provided. The turntable is...
|
|
|
5044827 |
Method for recovering wet buckled pipe
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...
|
|
|
5011333 |
Underwater pipe laying apparatus
Vessel carried apparatus for laying a continuous metal pipe on the bottom of a body of water comprising a pipe overbending structure mounted on the end of a vessel and having a 90 degree arcuate...
|
|
|
4909670 |
Submarine pipeline span correction by local axial tension release
A method of locally supplying slack to an axially tensioned length of pipeline spanning unsupported across an undulating seabed. During pipeline deployment, the pipeline is fitted with two weighted...
|
|
|
4676540 |
Articulated cable clamp for electric cable raising and laying
A clamp for gripping an electrical cable for the purpose of raising the cable from, or for lowering it into, the water. The clamp comprises a plurality of clamping units which are disposed in...
|
|
|
4498811 |
Underwater pipeline sealing apparatus
Apparatus for preventing flow of water from a first underwater pipeline portion forward of the apparatus to a second underwater pipeline portion rearward of the apparatus. At least one wedge-shaped...
|
|
|
4493590 |
Method and apparatus for on surface joining of submarine pipeline segments using an eccentric hinge
An eccentric hinge is provided for laying submarine pipelines which facilitates joining long segments of the pipeline by raising adjacent ends of the segments, attaching the hinge thereto, and...
|
|
|
4448569 |
Lift sling emplacement device
An apparatus is disclosed which is employable by a remotely controlled unwater work system to emplace a lift sling beneath an object resting on mud, sand or the like. The apparatus includes a...
|
|
|
4445804 |
Method and apparatus for remote recovery of submerged pipelines
A method and apparatus for the remote recovery of submerged pipelines is disclosed. The operations are entirely controlled by an operator located on a lay barge or other floating vessel. A buoy and...
|
|
|
4444528 |
Method and apparatus for recovering submerged pipeline
Apparatus for and a method of recovering a submerged pipeline is provided with such apparatus and method being particularly useful with pipelines laid on the bottom of a deep body of water. The...
|
|
|
4332510 |
Method and apparatus for recovering a length of an elongated body, submerged in water
Method and apparatus for recovering a length of an electric cable from great depths of water in which a first device with a buoyancy tank and cable gripping jaws is lowered into the water and...
|
|
|
4268191 |
Stand-by service structure for casual off-shore attendance
The invention relates in improvement in or relating to a stand-by service structure for casual off-shore attendance. The service structure comprises an emergent articulated column pivotally...
|
|
|
4257719 |
Underwater pipelines
A method of recovering an underwater pipe comprises inserting a recovery line attachment into the pipe, explosively deforming the pipe so that it is mechanically secured to the attachment, and...
|
|
|
4234268 |
Apparatus for recovering, by means of a pipelaying craft, pipes laid on deep sea beds
For lifting from deep sea beds a pipeline trunk, a device is disclosed which is composed by a compact framework of square outline which supports a sealing and pulling head and paired jaw assemblies...
|
|
|
4203687 |
Under water crane
A system of submarine cranes suited to handling pipe, fittings, tools and machinery on the marine floor, as by divers, and having simple articulate carrying crossbeams with hydraulic motive means...
|
|
|
4161367 |
Method and apparatus for completing diverless subsea flowline connections
A diverless subsea flowline connection system includes connectors for remotely connecting the ends of a first bundle of flowlines to the ends of a second bundle of flowlines and guidance components...
|
|
|
4153381 |
Shock absorbing apparatus for hoisting underwater pipeline
A pipe laying vessel has a hoisting winch whose cable is connected to an underwater pipeline during abandonment and recovering operations by a shock absorbing device inserted into and connected to...
|
|
|
4051687 |
Pipeline laying method
The free ends of two pipelines lying on the sea bed are joined by raising both ends to above the surface and supporting them on a barge, bringing them into axial alignment and welding them together...
|
|
|
4034568 |
Underwater clamping mechanism
A clamp engages an object such as a pipe at an undersea location and the clamp is connected by a wire to a surface station. At the upper end of the clamp is a mechanism for operating the clamp and...
|
|
|
3990255 |
Apparatus for securing cable
The securing of cable, and particularly the securing of laid light weight submarine telephone cable during repair operations, is difficult in that if the cable is merely gripped it tends to fillet...
|
|
|
3986745 |
Grabber
This device assures the underwater recovery of heavy objects by marine mals. A trigger mechanism releases sections of spring biased tubing which converged about the object. After the tubing...
|
|
|
3978892 |
Self-locking plug apparatus for sealing and recovering a pipeline laid on a deep submerged bed
A self-locking plug, for use in the recovery of a pipeline laid on a deep submerged bed, consists of the combination of a cylindrical body having a rear section for insertion into the submerged end...
|
|
|
3971228 |
Process and system for lifting submarine pipelines
A closed end of a pipeline submerged in water to a depth of upwards of about 125 meters if lifted to the surface and recovered by exerting a pull on said end by means of a capstan mounted on a...
|
|
|
3842612 |
PIPELINE RECOVERY TOOL AND METHOD
An apparatus and method for closing the end of a pipe, such as a pipeline, and for raising and lowering the same in a body of water. The apparatus includes a housing arranged for generally co-axial...
|
|
|
3813476 |
UNDERWATER OIL-FILLED ELECTRICAL CABLE INSTALLATION WITH MEANS LOCALLY SUPPORTING THE CABLE ABOVE THE BED OF THE WATER
A device for encircling an oil-filled underwater cable to lift a portion of the cable above the floor of the body of water upon which the cable is laid. By placing a device according to the...
|
|
|
3788084 |
RECOVERY OF MARINE PIPELINES
A liquid-filled pipeline is recovered from the bottom of a body of water by introducing gas into a submerged end of the line behind a one-way pigging device until a section of the line at least...
|
|
|
3777499 |
OFFSHORE PIPELINE RECOVERY
An offshore pipeline is recovered from the bottom of a body of water by introducing gas into one end of the line and pumping liquids from the other end of the pipeline until a section of the line...
|