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| Number | Title | Issue Date |
| 7942611 | Offshore structure support A pile based braced caisson structural support device includes a number of legs. These legs are configured in a teepee type configuration such that the footprint of the base is larger than the footprint of the opposing end. This structural support can be used as a b... | 05/17/2011 |
| 7690866 | Offshore oil-drilling rig and methods for installing same on an offshore oil-drilling site An offshore oil-drilling rig comprising a deck mounted mobile on legs, each leg including a support base on the sea floor and a caisson open at its base and designed to penetrate into the sea floor. Each caisson is arranged inside the leg and is mobile along the axi... | 04/06/2010 |
| 7407342 | Offshore wind energy system with non-skid feet This invention entails a wind energy system for offshore use with a longitudinal direction (L) running substantially vertically to an ocean surface in the erected state and with a plurality of feet determined for making contact with the ocean bottom whose extensions... | 08/05/2008 |
| 7325628 | Anchor for vehicle, vehicle and anchor in combination, and method of using the anchor A seabed anchor (20) is fixed to and deployable from an ROV (10) for positively anchoring the ROV (10) to the seabed (100). The seabed anchor (20) comprises three nested telescoping tubes (26, 28, & 30). The upper end... | 02/05/2008 |
| 7287935 | Tendon assembly for mooring offshore structure An offshore system for petroleum production has a buoyant platform. A tendon assembly secures to the platform and extends down to a counterweight located near the lower end. A piling is embedded in the sea floor. A socket at the counterweight telescopingly slides ov... | 10/30/2007 |
| 7246972 | Method for use of a maritime unit and maritime unit A maritime unit and a method for operating a maritime unit. The maritime unit includes a frame structure. The maritime unit includes at least three legs moveable between a standby position and an extended position. A jack mechanism moves the legs between the standby... | 07/24/2007 |
| 7140319 | Pile anchor with external vanes An elongated hollow member (160), as shown in FIG. 1, with longitudinally disposed external vane(s) (275A–B) for securing an offshore structure to the seafloor. The external vanes help maintain the heading and bearing of the anchor during the ... | 11/28/2006 |
| 7138038 | Expandable anode pod The present invention 10 discloses a collapsible pod for providing cathodic protection to a preferred structure 12. The present invention 10 has a top frame 20 and a bottom frame 22 with a plurality of folding leg segments 24 | 11/21/2006 |
| 7134809 | Offshores structure support A pile based braced caisson structural support device includes a number of legs. These legs are configured in a teepee type configuration such that the footprint of the base is larger than the footprint of the opposing end. This structural support can be used as a b... | 11/14/2006 |
| 6994493 | Pile driving system and pile for engagement with said system A system for controlling pile orientation comprises a pile (14) and a pile guide (20) for supporting the pile as it is driven into a substrate, the pile guide comprising a base frame (10) and a pile guide member (22) mounted on the base f... | 02/07/2006 |
| 6955503 | Method for salvaging offshore jackets The method for re-deploying an offshore jacket using a plinth involves the steps of locating an offshore jacket; constructing a plinth with a plinth legs, a skirt pile sleeve, a mud mat, a space frame, guide cones, and a trestle per plinth leg; placing the plinth at... | 10/18/2005 |
| 6948290 | System and method for increasing the load capacity and stability of guyed towers A guyed tower is used to support wireless communication equipment and/or other types of loads. The guyed tower is fixedly attached to a foundation, and a pole tower is erected within a middle region of the guyed tower. This pole tower is also fixedly attached to the... | 09/27/2005 |
| 6907652 | Pipe connecting method A method of connecting a first pipe to a second pipe having an end part fitting into an end part of the first pipe, comprising arranging the end part of the second pipe within the end part of the first pipe, arranging a sleeve of a deformable material between said e... | 06/21/2005 |
| 6902002 | Cement compositions comprising improved lost circulation materials and methods of use in subterranean formations The present invention relates to subterranean cementing operations and, more particularly, to cement composition that include improved lost circulation materials, and methods of using such cement compositions in subterranean formations. In certain exemplary embodime... | 06/07/2005 |
| 6783302 | Buoyant leg structure with added tubular members for supporting a deep water platform A deep water support platform, suitable for use as a hydrocarbon exploration or production facility in very deep waters of 10,000 ft or more is presented. The platform is attached to the floor of the ocean with a buoyant pile that includes buoyant members attached a... | 08/31/2004 |
| 6783305 | Offshore structure support A pile based braced caisson structural support device includes a number of legs. These legs are configured in a teepee type configuration such that the footprint of the base is larger than the footprint of the opposing end. This structural support can be used as a b... | 08/31/2004 |
| 6692194 | Method for installing a conductor casing through a suction substructure A suction substructure (2) is for the setting of one or more conductor casing strings (14) in connection with drilling of at least one underwater well, preferably a petroleum well. Use of the suction substructure (2) renders possible the installation of c... | 02/17/2004 |
| 6568880 | Foundation system for tension leg platforms A foundation system for tension leg platforms without use of foundation templates, wherein each tendon (5) is directly connected to a socket (9) inside a pile (8), the piles (8) being positioned for driving purpose by a pile-driving template (10) which is... | 05/27/2003 |
| 6419458 | Sub sea pile-sump pumping arrangement A pump 12 is (or pumps are) located in a blind foundation pile 14 that has been driven into the sea floor. The top of the pile 14 is provided with a fitting that includes an inlet 18, a hanger 24 for the pump 12, and an outlet 20. water is delivered from ... | 07/16/2002 |
| 6340273 | Support structure for wells, production facilities, and drilling rigs A support structure is disclosed for use in drilling and production operations having one end positioned above a body of water and another end below the body of water on a bed. The support structure includes a base and a jacket structure having at least t... | 01/22/2002 |
| 6305881 | Barge stabilization method An oil drilling barge stabilization system and method provide that an array of substantially vertically-oriented piles is formed in the sea bed to a depth beneath the sea bed that finds solid support. A barge is towed into position over the array of piles... | 10/23/2001 |
| 6299384 | Earthquake-compliant jacket An earthquake-compliant offshore platform for use in regions of strong earthquakes is disclosed in which the natural vibrational period of the jacket structure is preferably in the range of about 4 seconds to about 8 seconds, which is between the primary ... | 10/09/2001 |
| 6299385 | Mini-jacket and method for installation using caisson A mini-jacket is installed using a caisson. The caisson is a tubular pipe that is either pre-existing in the field or specifically installed before hand, such that the bottom end of the caisson is driven into the ocean floor and its top end extends above ... | 10/09/2001 |
| 6203248 | Sliding-resistant bottom-founded offshore structures A bottom-founded offshore structure in relatively shallow waters is protected against sliding. It uses at least one pile and a suction pump inside the pile. The pile has a length-to-diameter ratio such as to achieve sufficient pile imbedment with the sele... | 03/20/2001 |
| 6142709 | Foundation system for tension leg platforms A foundation system for tension leg platforms without use of foundation templates, wherein each tendon (5) is directly connected to a socket (9) inside the pile (8), said piles (8) being positioned for driving purpose by means of a pile-driving template (... | 11/07/2000 |
| 6039507 | Method and device for assembling cluster platforms A method for assembling a cluster platform in a body of water, by embedding a plurality of conductors in soil underlying the body of water; wet welding in the body of water at least one bracing element between the plurality of conductors, wherein the brac... | 03/21/2000 |
| 5988949 | Offshore jacket installation An offshore jacket or compliant tower and method of installing an offshore jacket or compliant tower where the foundation piles do not initially support the jacket. The foundation piles are driven into the sea floor. Two or more temporary support piles ar... | 11/23/1999 |
| 5899639 | Offshore structure for extreme water depth An offshore structure used for the production of or exploration for oil or gas or for some other purpose. The configuration enables the offshore structure to be installed and removed simply and economically. A central tower is wholly or partly supported b... | 05/04/1999 |
| 5816747 | Device for cutting a large diameter pipe and initiation manifold therefor A device (10) for explosively cutting a pipe (40) having an inner circumference has a carrier member (12) having a circumference. A support structure, such as a spring steel band (20), is releasably carried on the carrier member (12) in a retracted config... | 10/06/1998 |
| 5791821 | Shaped-charge cutting device for piles and underwater tubular members The invention relates to a device for severing tubular members, such as piles of an offshore platform. The device is incorporated into a platform pile as one of the sections of the pile and is deployed below a mudline during installation of the pile. A sh... | 08/11/1998 |
| 5775846 | Offshore production platform and method of installing the same An offshore production platform includes one or more decks supported above the water surface for accommodating equipment to process oil, gas, and water recovered from subsea hydrocarbon formations. The decks are supported on surface piercing columns which... | 07/07/1998 |
| 5743677 | Subsea multi-segmented pile gripper A pile gripper which uniformly engages a plurality of gripper teeth against a pile during engagement and uniformly retracts those same gripper teeth during disengagement is described. In one embodiment, the pile gripper is comprised of a an elastomeric ba... | 04/28/1998 |
| 5722494 | Stacked template support structure One or more bracing structures are placed at an underwater mud line location. The bracing structure(s) are first used as a template to guide the offshore drilling and placement of well tubulars. After drilling through the template is completed, at least o... | 03/03/1998 |
| 5722796 | Hinge-over subsea template production system A subsea system comprises a central template that is piled into the seabed and carried wing modules that are connected to the template by hinges. This allows the template to be deployed and the wing modules attached subsequently or for the wing modules to... | 03/03/1998 |
| 5707178 | Tension base for tension leg platform An offshore platform for supporting a platform deck in deep water. A buoyant base is submerged below the water surface and is retained with base tendons to a foundation on the sea floor. The buoyant base is attachable to the mooring tendons of a tension l... | 01/13/1998 |
| 5702206 | Offshore support structure method and apparatus A support structure for use with at least two wells, and a method for providing and supporting at least two wells in the ground beneath a body of water, includes a caisson, a plurality of conductors, and a guide frame, which support at least two wells wit... | 12/30/1997 |
| 5669735 | Offshore production platform and method of installation thereof An offshore production platform includes one or more decks supported above the water surface for accommodating equipment to process oil, gas, and water recovered from subsea hydrocarbon formations. The decks are supported on four surface piercing columns ... | 09/23/1997 |
| 5573355 | Offshore oil drilling and producing platform provided with improved means for anchoring in the sea bed Offshore oil drilling or producing platform comprising a hull (1) carried by legs (2) provided with feet (3) adapted to rest on the sea bed, characterized in that the walls of each of the legs (2) define a space opening onto the respective foot (3) in whi... | 11/12/1996 |
| 5558469 | Rotating pile guide A method of installing piles for offshore platforms consisting of a rotating clamp attached to the structure through which the pile can slide until driven to a required depth, and then tightened to secure the pile. The pile may be made up and inserted in ... | 09/24/1996 |
| 5551804 | Method of driving a pile A pile is plugged at its lower end or tip region so as to make it easier to drive. Additionally, such a plugged pile facilitates the transportation and handling of the pile prior to its driving.... | 09/03/1996 |
