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Match Document Document Title
8939213 Systems, spacer devices and methods for aligning multi-well modular templates and associated wells  
Systems, devices, and methods for providing proper spacing and alignment of multi-well modular drilling templates and associated wells are provided. An example embodiment of a system includes a...
8926226 Device for manufacturing a foundation for a mass located at height, associated method and assembly of the device and a jack-up platform  
The invention relates to a device for manufacturing a foundation for a mass located at height, such as the jacket of a wind turbine or a jetty, wherein the foundation comprises a quantity of piles...
7284615 Method and system for installing and maintaining a pipeline while minimizing associated ground disturbance  
A pipeline installation and maintenance method and system is disclosed in which a number of interconnectible platform modules are assembled into drilling platforms from which a segmented pipeline...
7255180 Modular drill system requiring limited field assembly and limited equipment support  
A modular transfigurable drilling rig comprises one or more transfigurable containers with drilling equipment to form an operational drilling rig. The transfigurable containers include a first and...
6926097 Jack up workover rig with removable workover floor unit  
An offshore jack-up workover rig. The workover rig includes a vessel which may be self powered or powered by a tug. The vessel may be raised above the surface of a water body by extending the legs...
6901998 Method for using a multipurpose system  
The invention is a method for drilling a well and for well intervention using a multipurpose system on a pivoting, slidable cantilever on a platform to drill a well and to perform well...
6615915 High pressure side-by-side wellhead system  
The present invention is a wellhead system for use in completing at least two well bores from within a single conductor housing. The wellhead system comprises at least one wellhead housing which...
6609573 Method and apparatus for a horizontal pipe handling system on a self-elevating jack-up drilling unit  
A pipe handling system is designed for use on an offshore structure, particularly an offshore structure provided with a cantilevered drill floor. The pipe handling system allows to handle...
6409430 Welhead templates  
A drilling and production template for sub-sea wells comprises a plurality of individual limbs (1-4) each with a central hub (10-14) at one end of an arm (11-41) and a drilling receptable (12-42)...
6247541 Method of drive pipe replacements on offshore platforms  
A method for replacing an old drive pipe in a slot on an offshore platform. The old drive pipe is first cut to provide an upper portion and a stub portion which remains firmly embedded in said...
5441112 Integrated base for oil drilling and production work  
An integrated oil drilling and producing base includes a single guiding funnel for guiding a wet Christmas tree into the proper position on a high pressure well head. The single guiding funnel has...
5248003 Apparatus and method for supporting the free end of a cantilever beam of a cantilevered jack-up rig  
A cantilevered jack-up rig having a support for supporting the free ends of the rig's cantilever beams when said beams are extended over a platform to be serviced by the rig, thereby maximizing...
5098219 Mobile submersible caisson for underwater oil-well drilling and production  
A mobile submersible caisson is employed to drill for and recover petroleum products from subsea wells and to deliver the products to shore or to vessels at the well site. The well drilling...
5012875 Method and apparatus for protecting a shallow-water well  
A method and apparatus for protecting an isolated well conductor of a shallow-water well by positioning a reinforcing frame with pile sleeves next to the well conductor near the water surface and...
4907657 Method for protecting a shallow water well  
Method of utilizing a jack-up well drilling rig in shallow water to drill an isolated well having an unsupported well conductor, and subsequently to attach a reinforcing frame near the water line...
4848966 Arrangement in a production platform  
A production platform for offshore exploitation of hydrocarbons comprises a truss tower (1) which rests on the sea floor (2) and supports a deck structure (3) provided with a drilling module (5)....
4739840 Method and apparatus for protecting a shallow water well  
Method and apparatus for reinforcing a shallow water unsupported well conductor by positioning a well jacket adjacent the well conductor, raising the jacket to a selected height above the ocean...
4733732 Submudline drivepipe whipstock method and apparatus  
In order to salvage a slot path on an offshore platform wherein the original conductor pipe has become clogged or otherwise rendered unusable, the original conductor is cut off below mudline,...
RE32623 Curved offshore well conductors  
Apparatus and method for producing hydrocarbons from a subterranean hydrocarbon-bearing formation located beneath the floor of a body of water. A platform structure is installed on the floor over...
4711604 Method of and apparatus for installing an anchor member below water level through a wall into a soil formation  
For the installation of an anchor member at a location below a water level through a retaining wall into a soil formation for supporting the wall, a drill mount is pivotally mounted about a...
4633953 Method for offshore production of hydrocarbons concurrently with the installation of a structure therefor  
A method is provided for producing usable hydrocarbon product from an offshore reservoir. The method includes the economically desirable step of producing a valuable hydrocarbon product from the...
4591295 Curved conductor well template  
An anchored submerged marine structure commonly referred to as a well template is located at the bottom of a body of water and used in the directional drilling of underwater wells. The well...
4561803 Conductor guide system for offshore drilling platform  
A conductor guide assembly for conductors of an offshore well platform having a jacket with an interior pile for extending from a sea bed to above a water level which is over the sea bed. In...
4561802 Assembly of conductor guides for offshore drilling platform  
A conductor guide assembly for conductors of an offshore well platform having a jacket with an interior pile for extending from a sea bed to above a water level which is over the sea bed. In...
4483644 Cantilevered mobile marine rig with hydraulic load equalizer  
Disclosed is a cantilever mobile marine rig with hydraulic load equalizer. The rig includes a deck structure and a cantilever assembly slidingly mounted on the deck structure. The hydraulic load...
4456072 Ice island structure and drilling method  
An off-shore ice island structure for location over a submerged drill site in waters which normally freeze in winter. The structure includes a buoyant protective caisson which freezes in position...
4421173 Motion compensator with improved position indicator  
A motion compensator for disposition between an offshore support and an offshore well string or the like movable with respect to the support comprises first and second compensator bodies...
4339005 Curved well conductors for offshore platform  
A method and apparatus for installing a curved well conductor (22) from an offshore marine structure (10) utilizes a leading section of precurved pipe (26) along with a plurality of trailing...
4326595 Method for drilling deviated wells into an offshore substrate  
Method for drilling well bores into an offshore substrate from a marine platform which is fixed to the ocean floor. The latter is provided with a cage which is removably positioned in a platform...
4307785 Pile driving rig having angulating knuckle lead therefor  
An Angulating Knuckle Lead installed within an offshore pile driving rig having both upper and lower hydraulically actuated supporting kickers, independently operable for driving pile on extreme...
4269542 Jack-up rig for marine drilling  
This invention relates to a mobile drilling platform of the jack-up type equipped with a special system which allows the said drilling platform to work as a drilling derrick and alternatively as a...
4249619 Deviated drilling apparatus  
Marine structure adapted to be fixed to the ocean floor for drilling wellbores into the latter. A drill conductor cage is removably positioned within the marine structure at a submerged position....
4249618 Method and apparatus for the working of underwater deposits  
A method of working an underwater deposit comprises the following stages: (a) constructing and positioning a platform structure, equipped before or after positioning with drilling devices and...
4165690 Drill units for drilling and charge laying operations and method of carrying out the operations  
The invention provides for a drill unit for drilling and charge laying operations and is suitable for operation on land or underwater. The drill unit comprises a rock drill mounted on a frame...
4147222 Acoustical underwater communication system for command control and data  
An acoustic communication system is disclosed as a secondary means for command control of underwater operations from a surface unit. The system includes a diving acoustic command control unit for...
4144940 Method and apparatus for installing an offshore pile driving rig  
A method and apparatus for driving conductor pipe in an offshore drilling platform including the steps of mounting a block and tackle on the platform and then lifting a crane onto the platform...
RE29929 Deviated conductor driving system  
A method and technique for a deviated (non-vertical) emplacement of a conductor casing at a desired curver curve and orientation in order to facilitate directional drilling of a well in the...
4134461 Marine structure and method of drilling a hole by means of said structure  
A bottom-positioned well drilling platform is provided with an enclosure in the lower part thereof which forms a chamber into which returning drilling mud and cuttings can be discharged. A pump...
4126010 Oscillating installation for installing in a body of water and method for its construction  
The invention relates to an oscillating installation installed at a fixed site in a body of water, comprising a shaft which rests on a heavy base, which itself bears on a bed, and which supports a...
4109478 Unitized conductor guide and frame for offshore drilling and production  
A novel guide member and guide member support arrangement for guiding a drill conductor from a deck portion of an offshore platform into the bottom of a body of water is disclosed. The guide...
4100754 Method and apparatus for installing pipes in off-shore locations  
Pipes which are to be inserted vertically into the sea bed for the extraction of fluids therefrom, such as liquids and gases, are connected together in groups, with each pipe group being...
4081932 Platform crane  
A mobile crane for use on an offshore oil well platform, comprising parallel base beams adapted to span the capping beams of the platform, and a pedestal and a rotating upper works movably mounted...
4045967 Apparatus for supporting a drilling platform on the ocean floor  
A mounting structure for supporting a drilling platform on the ocean floor comprises an open precast vessel having a bottom wall and a side wall extending up from and around the perimeter of the...
4010798 Method and apparatus for completing underwater well heads  
In a method of completing one or a plurality of grouped underwater oil wells, each well head to be connected is temporarily placed in a gaseous medium at atmospheric pressure during connection to...
3996756 Method and apparatus for supporting a drilling platform on the ocean floor  
A method and apparatus for positioning and supporting a drilling platform on the ocean floor in which the drilling platform is a monopod structure with a broad flat base. The ocean floor is...
3987639 Methods and apparatus for installing a drill conductor from an offshore tower  
A drill conductor is installed into a water bed from an offshore tower situated in a body of water by lowering the conductor from a deck portion of the tower along a straight path which is...
3987638 Subsea structure and method for installing the structure and recovering the structure from the sea floor  
A structure or template forms a tubular support structure for subsea equipment used in drilling and producing offshore oil and/or gas wells. The template contains production manifolding, remote...
3961673 Drilling apparatus  
A drill string is mounted on a mast which is angularly adjustable relative to a frame. A support is connected to the frame so as to be angularly adjustable and has an open aperture for the drill...
3899032 Method and apparatus for deviating conductor casing  
A method and apparatus for deviating conductor casing, or the like, as it is being driven into a substratum. The conductor casing has an enclosed beveled end, or a partial enclosed beveled end...
3871184 POSITION AND ANCHORING SYSTEM FOR OFF-SHORE DRILLING PLATFORM  
A monopad drilling structure in which the bottom of the structure is a flat surface resting on the ocean floor. A submerged cellar structure is emplaced over the drill site. Cables extend from the...

Matches 1 - 50 out of 94 1 2 >