Matches 101 - 150 out of 219 < 1 2 3 4 5 >
Match Document Document Title
4770247 Subsea riser for multiple bore wells  
An improved riser for a multiple bore subsea well providing wireline access to each of the bores through a single opening at the upper end of the riser and including an upper tubular member having...
4770563 Device for connecting lines associated with an offshore drilling equipment  
A device for connecting lines associated with offshore drilling equipment comprises at least one support (24, 24') hinged to the platform by tie rods (25, 25') and movable between a position of...
4730677 Method and system for maintenance and servicing of subsea wells  
A system and method for servicing subsea wells with a flexible riser. The flexible riser can be modified for use either with wireline or through the flow line tools. The flexible riser eliminates...
4712620 Upper marine riser package  
An upper marine riser package (10/10A) comprising a diverter (D) for diverting uncontrolled gas and return drilling mud therethrough, a flexible joint FJ for allowing tilting motion between a...
4703813 Cementing portion of conductor string  
An apparatus and method useful in offshore well drilling operations for cleaning the annular space between mudline suspension risers during and after cementing operations to assure that riser...
4699215 External tie-back connector  
An apparatus for connecting a riser to a wellhead housing for a tie-back connection allows connection without rotation or hydraulic actuation. A connector body is mounted to the lower end of the...
4679632 Remotely controlled riser connection  
A watertight compartment at a floating production plant handing crude oil and/or gas has at least one remotely releasable two-part connecting piece for a riser conduit between the sea floor and the...
4662785 Apparatus and method for connecting subsea production equipment to a floating facility  
There is disclosed a type of riser to connect subsea hydrocarbon production equipment to a floating storage, process or control facility which combines the advantages of integral and non-integral...
4660496 Remotely releasable connections at a floating processing plant  
In an arrangement including remotely releasable couplings for riser conduits between the sea floor and a floating plant processing crude oil and/or gas, the couplings are located in at least one...
4646841 Guide table for a marine production riser  
A circular guide table is provided for a marine production riser comprising an opening for the central tube having a ball joint allowing angular movement of the tube in any direction with respect...
4624318 Method and means for storing a marine riser  
A method and means for storing a marine riser is disclosed for relocating an offshore mobile unit from a drilling or production site. The riser is disconnected from a subsea port and lowered into...
4609046 Production riser foot and a process for implementing same  
A system is provided for guiding the central tube connector of a production riser for positioning same on an underwater well head installation. The central tube carries, during lowering, a support...
4576517 Marine heave compensating device  
A marine heave compensating device comprises a hydraulic piston and cylinder unit (15,16) with its cylinder (15) secured to a support (10,11). The piston is connected via a piston rod (16) to a...
4557332 Drilling riser locking apparatus and method  
Method and apparatus for use in drilling a well from a floating vessel by means of a riser, which connects the vessels drilling equipment to a wellhead assembly adjacent the ocean floor. The riser...
4556340 Method and apparatus for production of subsea hydrocarbons using a floating vessel  
Production from a subsea wellhead to a floating production facility may be realized with the use of a substantially neutrally buoyant flexible production riser which includes biasing means for...
4502543 Riser union with curved seat  
A support and connection system for a riser run from a subsea well to a floating vessel has a female housing supported from the vessel that receives a male termination head secured to the riser...
4478287 Well control method and apparatus  
A method and apparatus is disclosed for controlling a well drilled from a floating drilling vessel during the time that the marine riser is removed and conductor casing is being lowered and...
4477207 Marine riser buoyancy assembly  
A buoyancy assembly for mounting on a pipe such as a marine riser having service lines, such as choke and kill lines extending therealong, the assembly including discontinuous clamping band members...
4431059 Vertically moored platform anchoring  
An improved system for anchoring a floating vessel which is anchored only by parallel and essentially vertical conduits. The anchoring load is carried by units of concentric pipes including an...
4401164 In situ method and apparatus for inspecting and repairing subsea wellheads  
A marine riser having a pair of hydraulic lines, such as choke and kill lines, secured thereto and substantially parallel to one another providing track means extending along substantially the full...
4375835 Oil production system  
An oil production system for producing oil at an offshore location comprises a floating storage vessel to receive the produced oil, the vessel having means for dynamic positioning and being...
4367055 Subsea flowline connection yoke assembly and installation method  
A marine compliant riser system is provided for attaching a flexible flowline to a buoyed conduit riser section. The improved system includes a novel yoke assembly for receiving flexible flowline...
4340117 Underwater well installations and handling string joint therefor  
Underwater well apparatus in which the handling string for manipulating a handling tool to, e.g., orient and land a multiple string tubing hanger includes a power portion in the form of a single...
4305468 Method for drilling wellbores from an offshore platform  
A method for drilling wellbores from an offshore platform to penetrate a subterranean formation using a combination of surface drilling techniques and subsea drilling techniques to achieve an...
4249610 Offshore drilling control cable clamp system  
A cable clamp for securing a control cable to a kill or choke line in a mud riser used in offshore drilling of oil and gas wells is described. The cable clamp is comprised of two portions, a fixed...
4234047 Disconnectable riser for deep water operation  
An offshore marine structure for drilling wells into the ocean floor including a floating vessel which carries the necessary drilling equipment. A riser which extends from the vessel to a well head...
4215950 Tensioner device for offshore oil production and exploration platforms  
A tensioner device which operates in conjunction with an oil production riser incorporates a gimbal device having two relatively movable elements. One of said elements is connectible to the riser...
4198179 Production riser  
A riser for production of oil and gas in a marine location with the riser connected to the casing supported at the mud line of a body of water and extending upward in the water to a tension moored...
4194568 Disconnectable riser columns for under water oil wells  
A riser column particularly for use in deep water comprises a central tube connectable by its lower end to a submerged installation, for example a well, and including means permitting the central...
4193455 Split stack blowout prevention system  
A blowout prevention system for an offshore structure positioned on the underwater bottom in a body of water which contains moving ice masses that could force the structure off location wherein a...
4142584 Termination means for a plurality of riser pipes at a floating platform  
A termination means for a plurality of riser pipes at a floating platform including a termination member for supporting said plurality of riser pipes, said termination member being supported and...
4078605 Riser pipe string  
There is disclosed a riser pipe string made up of riser pipe sections each comprising a pipe length and a fairing carried by the pipe for free rotation thereabout.
4077472 Well flow control system and method  
A well system and method for completing petroleum oil and gas wells having special application to extreme environmental settings such as platform, sub sea, and floating vessel operations, and wells...
4068729 Apparatus for multiple wells through a single caisson  
A multiple well platform is described for producing hydrocarbons, preferably using a free-standing single riser caisson. Although the wells are connected up to the surface, the largest casings (and...
4067202 Single point mooring buoy and transfer facility  
A single point mooring and transfer facility is provided which comprises a floating buoy, a submerged platform, means for maintaining the floating buoy in position relative to the platform and a...
4059148 Pressure-compensated dual marine riser  
A dual marine riser for use in drilling deepwater oil and gas wells from a floating vessel, the marine riser incorporating concentric inner and outer risers, the outer riser being provided with one...
4023371 Riser for an offshore platform  
A riser having a 90° bend at its lower end is installed at an offshore platform by mounting the riser within casing with a horizontal leg from the 90° bend extending through a hole in the wall of...
RE28978 Fail-safe subsea fluid transportation system  
This specification discloses a subsea system for the production of fluid minerals. The system includes a product gathering network provided with production satellites in which the gas-oil-water...
3981357 Marine riser  
An improved marine riser is described which is comprised of a plurality of conduit sections joined together end to end. Buoyancy cans for retaining a compressed gas are flexibly connected to the...
3957112 Offshore apparatus for carrying out operations in an offshore well  
A marine riser or conductor that extends between a floating drilling vessel and an underwater wellhead is provided with buoyancy means in the form of small-diameter, stiff-walled fluidtight tubes...
3955621 Riser assembly  
A riser assembly in which each of the riser pipe and choke and kill lines includes a telescoping joint in a lower portion thereof which is at least partially pressure balanced so that the upper end...
3913668 MARINE RISER ASSEMBLY  
A marine riser assembly for use in offshore drilling operations includes a riser pipe, a ball joint in the riser pipe near its lower end, and steel kill and choke lines extending down the riser...
3895677 Riser pipe stacking method  
An offshore drilling rig that embodies a means for vertical stacking of riser pipe sections and blowout preventors below a derrick floor and includes riser pipe manipulating mechanisms for...
3889747 Telescopic riser tensioning apparatus  
Apparatus and method for applying tension to a string of casing extending from a vessel floating on the surface of a body of water to a wellhead operatively connected to a well borehole extending...
3827486 WELL REENTRY SYSTEM  
Method and apparatus for completing a well having a wellhead supported on a platform above a body of water and the well bore of which penetrates the floor of the body of water. The method comprises...
3817325 LATERALLY REINFORCED SUBTERRANEAN CONDUIT FOR DEEP WATERS  
The invention relates to a submarine conduit such as a well casing, mud riser or other conductor which extends in a substantially vertical direction between a subterranean well, and a drilling...
3815673 METHOD AND APPARATUS FOR CONTROLLING HYDROSTATIC PRESSURE GRADIENT IN OFFSHORE DRILLING OPERATIONS  
An improved system for offshore drilling is disclosed which is particularly useful in those operations where a floating vessel is situated at the surface of a body of water and circulation of...
3791442 COUPLING MEANS FOR A RISER STRING RUN FROM A FLOATING VESSEL TO A SUBSEA WELL  
A coupling means connects a riser string of tubing to a floating vessel over a subsea well to which the string is run by a support member, which in one version is a housing mounted beneath the...
3782460 METHOD OF INSTALLING A COMBINATION PEDESTAL CONDUCTOR AND CONDUCTOR STRING AT AN OFFSHORE LOCATION  
A pedestal conductor, buoyancy member, and conductor string are installed at an offshore location by lowering the conductor string into the borehole during drilling, cementing the conductor string...
3782458 UPRIGHT, SWIVELABLE BUOYED CONDUIT FOR OFFSHORE SYSTEM  
The basic device of the invention includes a submerged, bottom supported ball joint having a conduit extending upwardly therefrom, a body of flotation material secured on the conduit above the...
Matches 101 - 150 out of 219 < 1 2 3 4 5 >