Matches 1 - 50 out of 153 1 2 3 4 >


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8960305 Monitoring system for pipelines or risers in floating production installations  
A method of monitoring a subsea pipeline system connecting one or more wells to a floating production system, wherein the pipeline system is at least partially flexible, the method comprises...
8881843 Managed pressure and/or temperature drilling system and method  
The present invention relates to a managed pressure and/or temperature drilling system (300) and method. In one embodiment, a method for drilling a wellbore into a gas hydrates formation is...
8464745 Constant volume pressure compensator  
A pressure equalizer for an underwater vessel can include a pneumatic reservoir and a pressure compensating valve (PCV). The PCV can be in fluid communication with the surrounding underwater...
8430171 Method and arrangement for sealing a subsea oil wellhead  
Several, preferably three, deflection elements are placed and fixed around the wellhead, preferably in equal circumferential distances around the wellhead. For each deflection element a guiding...
8403065 Fluid connection to drilling riser  
A riser for use in boring a subsea wellbore having a gooseneck assembly connected onto the riser. The gooseneck assembly has an outlet that couples with a flowline on the riser and a connector...
8196665 Method and apparatus for containing an oil spill caused by a subsea blowout  
A method and apparatus are described for containing an oil spill caused by a subsea blowout, (i.e., a source of pollution located on a floor of an ocean, (e.g., a defective blowout preventer (BOP)...
8186443 Method and apparatus for containing an oil spill caused by a subsea blowout  
A method and apparatus are described for containing an oil spill caused by a subsea blowout. A blowout preventer (BOP) stack, located on a floor of an ocean, may be circumvented with a hollow wall...
8111502 Arrangement adapted for a subsea application  
An arrangement related to subsea electric power distributing AC-system and adapted for a subsea application. The arrangement is enclosed in a watertight casing. The casing exposes a main power...
8025103 Contained top kill method and apparatus for entombing a defective blowout preventer (BOP) stack to stop an oil and/or gas spill  
A method and apparatus are described for stopping oil and/or gas from spewing from a defective blowout preventer (BOP) stack located on a floor of an ocean by entombing the defective BOP stack. A...
7823643 Insulation shroud with internal support structure  
The present invention is directed to an insulation shroud with internal support structure. In one illustrative embodiment, the insulation shroud includes a body adapted to be positioned around a...
7793725 Method for preventing overpressure  
The present invention relates to overpressure protection systems and methods for use on a production system for transferring hydrocarbons from a well on the seafloor to a vessel floating on the...
7770651 Method and apparatus for sub-sea processing  
A submersible process environment for sub-sea processing is provided. Such environment can include a modular encapsulated unit having an interior volume and one or more processing units disposed...
7745379 Method of insulating a subsea structure  
A method of insulating pipeline bundles used in recovering hydrocarbons from wells is disclosed. A polymeric substance, such as an orthophosphate ester, is injected into the annulus between a...
7735561 Subsea adapter for connecting a riser to a subsea tree  
A method and system for performing intervention and workover operations on a subsea well are provided, as well as an adapter for connecting a lower end portion of a conduit extending from a vessel...
7703534 Underwater seafloor drilling rig  
A subsea drilling system comprises a pressurized drilling capsule that is sealed against the subsea environment and houses equipment for manipulating a drillstring that extends through an opening...
7694743 ROV-deployable subsea wellhead gas hydrate diverter  
A ROV-deployable gas hydrate diverter comprising a body having a circular disc shape with a center hole, and a handle attached to and protruding from a surface of the body, wherein the handle is...
7654328 Subsea compressor module and a method for controlling the pressure in such a subsea compressor module  
A subsea gas compressor module having a housing comprising a sealing element generally defining within the pressure housing a first compartment holding as compressor and a second compartment...
7621338 Non-orienting tree cap  
A wellhead assembly includes a tree cap having a production mandrel extending down into a production passage of a Christmas tree to form a seal. The tree has an annulus bore and an annular cavity...
7600570 Drilling rig placed on the sea bed and equipped for drilling of oil and gas wells  
A drilling placed on the seabed and arranged for drilling of oil and gas wells is remote controlled from a light drilling vessel (2) through pipes and signal cables (3). The main structure of the...
7575254 Stiffener fixation assembly for a protective assembly that protects a flexible tube against wear due to friction  
A stiffener fixation assembly fixed to the outer cover of a flexible tube, the flexible tube being in contact with a stiffener in an I-tube, at the end of which a bell mouth may be fixed, whereby...
7393158 Shrink for centralizer assembly and method  
A centralizer system is provided for use in a marine riser system, the centralizer being preferably heat-shrink fitted to an upset portion of a keel joint, the upset portion having tapered...
7261164 Floatable drill cuttings bag and method and system for use in cuttings disposal  
In aspects, embodiments of the present invention provide devices, systems and methods for managing cuttings formed during drilling of a subsea wellbore. By managing, it is meant the processing,...
7210531 Protective element for a riser segment  
A protective element for a riser segment, including an elongated buffer body, at least one foot connected with the buffer body, the at least one foot being provided with an engagement part...
7200540 System and method for automated platform generation  
Systems for implementing methods for generating platform location sets comprising selecting a set of platform locations; determining additional platform locations to add to the set of platform...
7185705 System and method for recovering return fluid from subsea wellbores  
A subsea return fluid recovery system for recovering drilling fluid and cuttings (“return fluid”) from a subsea wellbore in one embodiment includes a hub at the opening of the subsea wellbore that...
6907326 Autonomous surf zone line charge deployment system  
A system and method autonomously clears obstacles and mines from an approach lane. A ship is distantly located from an approach lane spanning a surf zone and beach portion, and the ship has...
6889770 Method for thermally protecting subsea installations, and apparatus for implementing such thermal protection  
Method for protecting subsea installations against cooling which leads to hydrate formation, in particular during production halts. This is achieved by thermally isolating portions of the...
6796379 Drilling waste handling  
A method and an apparatus for storage and transport of drilling waste is provided. A number of storage containers (12) are anchored to the sea bed by means of anchors (15) and cables (13). The...
6622793 Method for carrying out operations on petroleum and gas fields and deep-sea platform for realizing the same  
A method for carrying out operations on petroleum and gas fields is provided. The method involves using a platform which is located underwater when in working position at a depth where it is not...
6564873 Apparatus for offshore production of hydrocarbon fluids  
An apparatus for offshore production of hydrocarbon fluids is disclosed. The apparatus comprises a base and a buoyant structure secured to said base and connected or adapted to be connected to a...
6457526 Sub sea bottom hole assembly change out system and method  
The components required for changing out a bottom hole assembly are stored within a submerged storage chamber adjacent the lower end of a riser extending up from the bottom of a body of water. A...
6341572 Explosion prevention system for internal turret mooring system  
A method and apparatus for ensuring against explosion of the gaseous atmosphere of a closed chamber, such as the QDCD room of an internal turret of an offshore production and offloading buoy...
6182762 Storm valve  
A method and apparatus for temporarily storing the lower portion of a string of drill pipe in a well which has a cased portion wherein a packer, installed between a storm valve located below the...
6102124 Flying lead workover interface system  
Flying lead hydraulic and electrical umbilical arrangements are disclosed for control of a subsea christmas tree for production and workover operations. Alternative arrangements for deep water ROV...
5992526 ROV deployed tree cap for a subsea tree and method of installation  
A lightweight ROV deployable tree cap (28) for deployment on a subsea production hub (10) of a subsea tree. A tree cap (28) has a lightweight body (30) with parallel planar sides and including...
5894890 Normally closed retainer valve with fail-safe pump through capability  
A retainer valve provides increased safety in wellsite operations. In a preferred embodiment, operation of the retainer valve may be responsive to control line pressure or to tubing pressure. The...
5884703 Normally closed retainer valve with fail-safe pump through capability  
A retainer valve provides increased safety in wellsite operations. In a preferred embodiment, operation of the retainer valve may be responsive to control line pressure or to tubing pressure. The...
5884707 Normally closed retainer valve with fail-safe pump through capability  
A retainer valve provides increased safety in wellsite operations. In a preferred embodiment, operation of the retainer valve may be responsive to control line pressure or to tubing pressure. The...
5884708 Normally closed retainer valve with fail-safe pump through capability  
A retainer valve provides increased safety in wellsite operations. In a preferred embodiment, operation of the retainer valve may be responsive to control line pressure or to tubing pressure. The...
5860478 Sub-sea test tree apparatus  
Apparatus and a method for killing a live well after activation of a well blowout preventer is described. This is achieved by providing apparatus in the form of a shear or kill sleeve (34) in a...
5810515 Protective device for an installation mounted on the seabed  
A means (20) for protecting a device (2) which a installed on the sea bed (11) and projects up therefrom. The means comprises a central section (21) which is arranged to be attached to the upper...
5782304 Normally closed retainer valve with fail-safe pump through capability  
A retainer valve provides increased safety in wellsite operations. In a preferred embodiment, operation of the retainer valve may be responsive to control line pressure or to tubing pressure. The...
5642965 Interface system for operation of remote control vehicle  
All points at which torque is usually applied to subsea equipment, particularly in the search for and production of oil, are centralized at a single panel upon which standard kinds of connecting...
5607901 Environmentally safe annular fluid  
An environmentally acceptable, thermally insulating annular fluid comprised of a liquid which is non-aqueous, non-corrosive, and thermally insulating, a clay gellant, and a clay dispersant. A...
5398761 Subsea blowout preventer modular control pod  
A modular subsea control pod assembly having a retrievable pod assembly and a receptacle assembly. The retrievable pod assembly has a stab block and at least one function port having an opening in...
5398762 Compressor system in a subsea station for transporting a well stream  
In a subsea station for transporting a well stream, comprising a compressor (12, 13) with a motor (8) in a common drive atmosphere within a pressure shell (21), and provided with a lube oil...
5310286 Cased glory hole system  
A glory hole silo comprising a cylindrical casing open at the upper end thereof; an upwardly open porch for supporting a flowline, said porch extending horizontally from and cantilevered with...
5279368 Anti-fouling covering for use in sub-sea structures  
An anti-fouling covering is applied to a tubular offshore structure to prevent fouling tubular goods by marine growth. The covering comprises metal sheeting which is deformed to provide spaced...
5259458 Subsea shelter and system for installation  
A subsea abandoned wellhead protection system which may be installed underwater without the need for underwater assistance from divers or the like, the system allowing full site preparation and...
5238069 System for preventing cutting gas explosion during subterranean pipe cutting operations  
An apparatus and system designed to prevent cutting gas buildup and explosion of same during the cutting of underwater abandoned wellheads and the like. The present system as configured is...

Matches 1 - 50 out of 153 1 2 3 4 >