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8636447 System and method for repairing and extended length of a subsea pipeline  
An apparatus from repairing a subsea pipeline has a pile with a receptacle on a top surface thereof, a frame having a pair of pins extending outwardly on opposite side of the frame and received...
8517044 Long distance submerged hydrocarbon transfer system  
A hydrocarbon transfer system includes a first and second floating structure and a substantially horizontal transfer pipe system submerged below water level interconnecting the floating structures....
8152411 Guide arrangement  
Guide arrangement for marine risers, in particular for offshore oil and gas operations. The guide arrangement has at least one guide structure (21, 22) for a length of riser, a frame assembly (10,...
8123437 Pipeline assembly comprising an anchoring device  
The invention relates to a pipeline assembly and a method of installing a pipeline assembly, wherein the pipeline extends at least in part on a seabed and curves upwardly from the seabed along a...
8100606 Stabilizing of submarine elongate structures  
A stabilization system for stabilizing a submarine pipeline supported on a seabed below water level. The seabed is inclined in that it incorporates a sloping section extending between an upper...
8092119 Pipeline buoyancy control assembly and tiedown  
A pipeline buoyancy control assembly is operable to simultaneously retain a plurality of pipelines against buoyancy forces. Respective ends of two retaining straps corresponding to two respective...
8087848 Powered sheave for node deployment and retrieval  
A method and apparatus for deploying a plurality of seismic sensor units into a water column is described. The method includes providing a length of flexible cable from a cable storage device...
8007203 Method and installation for connecting a rigid submarine pipe and a flexible submarine pipe  
A method and an installation for connecting a rigid submarine pipe and a flexible submarine pipe. The rigid pipe terminates in a free connection end. The flexible pipe has a flow-line portion and a...
7976246 System for deploying a deepwater mooring spread  
A system for deploying a deepwater mooring spread from a floating vessel using at least two cranes each having a main block, a deepwater deployment system connected to at least one of the cranes, a...
7942608 Anchoring collar  
A flowline for hydrocarbon which is capable of being reeled and which is unreeled for being laid on the seabed using the reeled lay method is comprised of successive pipe sections having opposing...
7866398 Umbilical termination assemblies  
An underwater termination assembly for use with a subsea system such as a well tree, comprises a construction having first and second limbs substantially at a right-angle to each other, which...
7862256 Pipeline weighting device and method  
A pipeline weighting device to straddle the longitudinal axis of a pipeline, a method of filling the device, and a method of weighting a pipeline with the device. The pipeline weighting device is...
7794177 Stab and hinge-over pipeline and terminal assembly  
A subsea system for securing an end portion of a pipeline includes a subsea foundation. The foundation has a lower portion located below the sea floor and an upper portion extending above the sea...
7677837 Device for transferring fluid between two floating supports  
A device for transferring fluid between two floating supports anchored to the sea bottom, having a rigid central undersea pipe installed below the surface with its ends each being connected to...
7654773 System and method for installing a subsea pipeline  
The disclosure provides a system and method for installing subsea equipment, such as a pipeline and equipment associated therewith in a target area, generally having restricted overhead access. An...
7360968 Method and device for anchoring a pipeline  
An anchoring method and device, for anchoring a pipeline to a seabed. The pipeline may extend from a well which is located on a seabed to a floating platform. Tension forces which are exerted on...
7344338 Pipeline ballast and method of use  
A pipeline ballast has at least two sacks adapted to straddle a pipeline. Permeable sacks filled with inert high density aggregate such as barite uses less dry weight of aggregate to restrain...
7287936 Shallow water riser configuration  
A shallow water riser extending between a seabed connection and a floating support connection and of a length through the shallow water to be in wave form with at least one and, as illustrated, two...
7246971 Stabilisation of submarine elongate structures  
A stabilization system (10) for a section of submarine pipeline (11) comprising an end restraint (15) at each end of the section of pipeline and intermediate restraints (20) between the two end...
7241075 Umbilical anchoring clamp  
A subsea cable (3) designed to extend from a floating structure (1) on the sea surface down to a subsea structure (2) on the sea floor with a first portion (3a) extending from the floating...
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,...
7073978 Lightweight catenary system  
A lightweight catenary system for deepsea operations in which a lightweight flexible pipe such as disclosed in U.S. Pat. No. 6,491,779 is suspended in seawater from a vessel or platform, and having...
7066686 Automatic control methods for positioning the lower end of a filiform structure, notably an oil pipe, at sea  
Method intended for automatic control of an underwater pipe for connecting the lower end of the pipe to a wellhead, wherein the following stages are carried out: Stage 1: determining a mathematical...
7040841 Shallow water riser support  
A conduit structure (44) connects subsea oil wells to a floating structure (12) such as a vessel, in shallow water, the conduit structure providing a low cost and reliable fluid connection during...
7029205 Apparatus for pipeline stabilization and shoreline erosion protection  
Disclosed is an apparatus for pipeline stabilization and shoreline erosion protection, termed a BulkMat device, for protecting and securing pipelines, which are typically located in ditches or on...
7025535 Seafloor/surface connecting installation for a submarine pipeline which is connected to a riser by means of at least one elbow pipe element that is supported by a base  
A bottom-to-surface connection installation for an undersea pipe. The installation comprises a vertical riser having its bottom end connected to an undersea pipe on the sea bed, and having a float...
6854930 Underwater pipeline connection joined to a riser  
The present invention relates to an installation providing a bottom-to-surface connection for an undersea pipe resting on the sea bottom, in particular at great depth, the installation being of the...
6811355 Loading arrangement for floating production storage and offloading vessel  
A loading arrangement includes a riser that extends from a subsea structure to a coupling element for coupling the riser to a vessel. The coupling element includes a buoy body which is connected to...
6797221 Process for the manufacture of a protecting and immobilizing element of the mattress-like type, and element so obtained  
A process for the manufacture of a protecting and immobilizing element of the mattress-like type consists in providing containing means (2, 20) and a layer of flexible material (3, 21) inside them,...
6474254 Submarine deployed ocean bottom seismic system  
A method and vehicle to deploy and retrieve seismic apparatus to and from the ocean bottom and to acquire data from the seismic apparatus. Submersible robotic vessels deploy and retrieve the...
6457908 Method and apparatus for suction anchor and mooring deployment and connection  
A method and apparatus for deployment of mooring systems for buoyant marine structure such as mobile offshore drilling units (MODU's) and for connecting the same to the mooring lines thereof. An...
6454494 Device for anchoring a pipeline  
A device for anchoring a pipeline has a tubular lower portion formed so as to be screwed into soil and firmly retained in the soil, a tubular extension having a lower end connected with the lower...
6439808 Method and a device for protective encapsulation of pipe loops installable on the seabed  
A method and a device for the protective encapsulation of an oil or natural gas pipe loop within an outer jacket or cover for installation on the seabed, where the end portions of the pipe loop are...
6416253 Abrasive resistant open cell articulated seabed mat  
Concrete blocks with an open cell structure extending throughout the block are assembled in substantially parallel columns and rows to from a mat structure capable of articulating over underwater...
6409428 Apparatus for securing a tubular structure to an anchor  
An apparatus for releasably securing a tubular structure of a floating installation to an anchor fixedly secured to an underwater floor has a first connection element mounted at one end of the...
6350085 Cable deployment system and method of using same  
A cable deployment system and method for laying a cable on the sea floor. The cable deployment system includes a cable having a first cable section connected to a riser cable section. The riser...
6273641 Protective device  
A protective device having a shell structure and being shaped from a plate-shaped material, in particular but not exclusively, adapted for covering of a sub sea structure, such as at least one pipe...
6220788 Pipeline weight  
A pipeline weight includes a first flexible pouch and a second flexible pouch with a connecting web extending between the first pouch and the second pouch. Each of the first pouch and the second...
6206613 Configurable support apparatus for flexible pipe and method  
A series of height-adjustable pipe-supports are used to lay a flexible conduit such as the sewer line of a recreation vehicle at a gradually decreasing slant above a ground surface. Gutter segments...
6132141 Pipeline buoyancy control assembly and tie-down attachment member therefor  
A pipeline buoyancy control assembly includes a pair of anchor rods, a pair of tie-down attachment members, a pair of termination members, and a flexible endless strap having an endless loop...
6109830 Riser system for connecting a seabed installation with a floating vessel  
A riser system for connecting a seabed installation to a floating vessel consists of first and second fluid conveying conduits (13,14) connected by an articulated joint (7). In a standby condition...
6030145 Articulated underwater cable riser system  
An articulated underwater cable riser system includes at least one articulated anchor section having a plurality of modular anchor segments and an articulated mid-span buoy having a plurality of...
6027285 Mat installation  
A mat installation is disclosed which reduces shoreline deterioration due to wave and tide surging, comprising a series of concrete elements, disposed over a set of pipes fastened together,...
6019652 Buoyancy adjustment  
Device for the adjustment of buoyancy of a seismic cable comprising a main part (1) adapted to firm, integrated mounting into a chosen point in the length of the cable, the main part (1) comprising...
5984581 Pipeline coating  
Method and apparatus for weighting pipe segments of the type that are interconnected to form a pipeline for transporting fluids such as natural gas and the like. The exterior surface of each...
5944449 Non-Abrasive subsea mat  
Non-abrasive and non-shielding pads are attached to the at least one side of concrete elements with polymeric based fasteners that are embedded into a cast material, such as concrete, when the...
5820299 Building modules and assemblies made from such modules  
Each module includes a tubular member filled with filling material, such as concrete, and a tube located in the filling material and extending longitudinally of the tubular member. Tubes or holes...
5785457 Pipe placement and support system  
A placement and support system for installing long lengths of connected pipe sections and method of using the same are provided having a series of pairs of spaced apart piles that are installed at...
5730552 Pipeline anchor apparatus  
A pipeline anchor apparatus provides left and right anchor units connected by a tie-down strap made of heavy-duty polyester or nylon webbing. The strap prevents the pipeline from floating in wet...
5683204 Apparatus and method for laying underwater pipelines  
An apparatus and method for laying underwater pipeline which includes a plurality of buoyancy control valves formed thereon. Each buoyancy control valve includes an air escape hole formed in the...
Matches 1 - 50 out of 144 1 2 3 >