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An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
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| Number | Title | Issue Date |
| 8347982 | System and method for managing heave pressure from a floating rig A system compensates for heave induced pressure fluctuations on a floating rig when a drill string or tubular is lifted off bottom and suspended on the rig, such as when tubular connections are made during MPD, tripping, or when a kick is circulated out during conve... | 01/08/2013 |
| 8322460 | Dual density mud return system Systems and methods for lifting drilling fluid from a well bore in a subsea formation are disclosed. Some system embodiments include a drill string suspended within a drilling riser to form the well bore, and a drilling fluid source for supplying drilling fluid thro... | 12/04/2012 |
| 8316963 | Cuttings processing system A method for using a vessel assembly including two or more vessels in multiple drilling unit operations, the method including using a vessel in the container assembly for cuttings storage, and operating at least one vessel in the container system in at least two of ... | 11/27/2012 |
| 8079426 | Integrated drilling deck and bop handling A method for handling a blow-out-preventer on a drilling platform and a drilling platform having a lower pontoon structure; a plurality of columns extending upwards from the lower pontoon structure; an upper deck structure connecting the upper deck structure connect... | 12/20/2011 |
| 8074738 | Offshore thermal treatment of drill cuttings fed from a bulk transfer system A system for offshore treatment of drill cuttings that includes a first pressurized vessel configured to receive contaminated drill cuttings and adapted to allow a compressed gas be introduced therein as the sole means for inducing movement of said contaminated dril... | 12/13/2011 |
| 7819204 | Subsea drilling A method and apparatus for drilling subsea wells is provided. A subsea shut off device including ball gripping mechanisms is latched to a template at surface. Drilled in casing can be suspended from the device at any position using the gripping mechanism so that the... | 10/26/2010 |
| 7730965 | Retractable joint and cementing shoe for use in completing a wellbore An improved method and/or apparatus for completing a wellbore is provided. In one embodiment, a method of lining a pre-drilled wellbore is provided. The method includes the act of providing a casing assembly, the casing assembly including a string of casing; and a r... | 06/08/2010 |
| 7677329 | Method and device for controlling drilling fluid pressure A method of reducing drilling fluid pressure during subsea drilling, where drilling fluid is pumped down into a borehole and then flows back to a drilling rig via the lined and/or unlined sections of the borehole and a liner, wherein the drilling fluid pressure is c... | 03/16/2010 |
| 7644784 | Transport watercraft A transport floor connected to the transport watercraft. An elevated drilling floor integrally connected to the transport floor; supporting a derrick comprising at least two rails for supporting a traveling top drive supported by a crown block. The crown block is co... | 01/12/2010 |
| 7628225 | Drilling device The present embodiments relate to systems for building and/or handling a tubular string of a drilling device. The drilling device comprises a drill floor and a drilling derrick extending from the drill floor. The drill floor has an extension in a first plane (P1 | 12/08/2009 |
| 7628224 | Shallow/intermediate water multipurpose floating platform for arctic environments A method and apparatus for conducting simultaneous drilling and production are provided. The apparatus can include a ship shape floating vessel, wherein the ship shape floating vessel includes at least two drilling derricks, at least two drilling modules, and at lea... | 12/08/2009 |
| 7407022 | Apparatus for pumping drill cuttings and dual cylinder positive displacement pump for moving drill cuttings and method of use A dual cylinder positive displacement pump is used to move drill cuttings. The pump may include one or more of a self-sealing wear ring member/wear plate member interface, stainless steel pumping cylinders, and a hopper with an inclined surface. ... | 08/05/2008 |
| 7367410 | Method and device for liner system Method for drilling and lining a well wherein at least one liner (1, 2, 32) with a larger external diameter than the substantial part of a drilling riser (10) is pre-installed at a point below the substantial part of the drilling riser (10). A b... | 05/06/2008 |
| 7367750 | Riser installation vessel and method of using the same A vessel for exploration of hydrocarbons includes one or more risers extending from the vessel to the seabed, a hydrocarbon processing unit connected to the one or more risers and to a storage or transport structure for storing the processed hydrocarbons. The vessel... | 05/06/2008 |
| 7353887 | Control systems and methods for active controlled bottomhole pressure systems An active differential pressure device (APD device) in fluid communication with a returning fluid creates a differential pressure across the device, which controls pressure below the APD Device. In embodiments, a control unit controls the APD Device to provide a sel... | 04/08/2008 |
| 7350597 | Drilling system and method A drilling system for drilling a bore hole into an earth formation, the bore hole having an inside wall. A drill string reaches into the bore hole from a surface, leaving a drilling fluid return passage between the drill string and the bore hole inside wall. A botto... | 04/01/2008 |
| 7334967 | Method and arrangement by a workover riser connection A slip joint for a riser between a well and a floating petroleum installation, for example an oil platform. The slip joint includes, an outer pipe and an inner pipe, the pipes arranged to enable telescopic movement relative to one another in order to compensate for ... | 02/26/2008 |
| 7325607 | Methods and systems for using high-yielding non-Newtonian fluids for severe lost circulation prevention A system and method to model and analyze the mixing energies of high-yielding non-Newtonian fluids to prevent chemical lost circulation. Laboratory tests are performed under varying conditions from which data on the mixing energies needed to optimize the use of high... | 02/05/2008 |
| 7320371 | Method and device for producing pretensioned anchorings A method and device for boring, particularly percussion boring or rotary percussion boring, a hole in soil or rock material and for forming an anchoring. A borehole is formed by inserting a drill bit, and a casing tube is placed inside the borehole during the boring... | 01/22/2008 |
| 7301472 | Big bore transceiver In a subterranean well completion a bi-directional signal transmission system includes an in-line acoustic transceiver mounted in a tubing string extending through the wellbore, the transceiver being disposed beneath a hanger structure engaging the tubing string. Vi... | 11/27/2007 |
| 7296628 | Downhole swivel apparatus and method What is provided is a method and apparatus which can be detachably connected to an annular blowout preventer thereby separating the drilling fluid or mud into upper and lower sections and allowing the fluid to be displaced in two stages, such as while the drill stri... | 11/20/2007 |
| 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 |
| 7281585 | Offshore coiled tubing heave compensation control system An offshore oil well assembly is provided that includes a floating vessel and a coiled tubing injector supported on the floating vessel. A coiled tubing string is movable by the injector into and out of a wellbore. The assembly also includes at least one measurement... | 10/16/2007 |
| 7275605 | Rotatable drill shoe A rotatable drilling shoe attachable to a section of casing that allows for drilling and casing of a well bore in a single trip. The drilling shoe includes a fixed section and a rotatable section that has a drillable bit attached thereto. The drilling shoe further i... | 10/02/2007 |
| 7270185 | Drilling system and method for controlling equivalent circulating density during drilling of wellbores A drilling system for drilling subsea wellbores includes a tubing-conveyed drill bit that passes through a subsea wellhead. Surface supplied drilling fluid flows through the tubing, discharges at the drill bit, returns to the wellhead through a wellbore annulus, and... | 09/18/2007 |
| 7264058 | Arrangement and method for regulating bottom hole pressures when drilling deepwater offshore wells An arrangement and a method to control and regulate the bottom hole pressure in a well during subsea drilling at deep waters: The method involves adjustment of a liquid/gas interface level in a drilling riser up or down. The arrangement comprises a high pressure dri... | 09/04/2007 |
| 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, storage, transportation and disposal of the cuttings. In an exemplary ap... | 08/28/2007 |
| 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 second load bearing support and a load bearing bottom disposed betwee... | 08/14/2007 |
| 7240736 | Drilling and producing deep water subsea wells Subsea wells are drilled and completed with an offshore floating platform in a manner that allows simultaneous work on more than one well. A first well is drilled and casing. Then a tubing hanger is run through a drilling riser and landed in the wellhead housing. Th... | 07/10/2007 |
| 7237613 | Underbalanced marine drilling riser A riser assembly for offshore drilling has an inner conduit suspended within an outer riser. A seal assembly seals an annular space between the inner conduit and the riser at the lower end of the inner conduit. The seal assembly has a pressure area that is independe... | 07/03/2007 |
| 7231981 | Inline compensator for a floating drill rig An apparatus and method for protecting against the problems associated with heave of a floating drilling rig are disclosed. The disclosed invention is a unique inline compensator in which a plurality of cylinders housed within a tubular housing and a plurality of lo... | 06/19/2007 |
| 7225877 | Subsea intervention fluid transfer system A system for subsea transfer of intervention fluids to a subsea intervention apparatus, the system, in certain aspects, including a structure and a frame pivotably mounted thereto, a plurality of frame fluid conduits on the frame for conducting fluid from a connecto... | 06/05/2007 |
| 7210530 | Subsea separation system A preferred embodiment of the inventive fluid delivery system comprises a vertical liquid/vapor separator and riser assembly that comprises a multi-phase separator inlet, a vapor outlet and riser, and a liquid outlet port connected to a hydraulically-driven centrifu... | 05/01/2007 |
| 7188677 | Tensioning system for production tubing in a riser at a floating installation for hydrocarbon production A device for tensioning and relieving production tubing (49) extending from a subsea hydrocarbon well (107) up through a riser (63) to a floating installation (87), a continuous production tubing extension (85) passing through a te... | 03/13/2007 |
| 7185719 | Dynamic annular pressure control apparatus and method A drilling system for drilling a bore hole into a subterranean earth formation, wherein at least a portion of the mud flow from the primary mud pump is diverted to the mud discharge outlet, thereby creating a backpressure system to readily increase annular pressure.... | 03/06/2007 |
| 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 directs fluid into a transport device. In one embodiment, the hub... | 03/06/2007 |
| 7178592 | Closed loop multiphase underbalanced drilling process The present invention provides apparatus and methods for handling fluids returning from a well. The fluids are introduced into a separator and a separated gas stream is recovered or recycled. The gas stream may comprise more than one phase. The separated gas stream ... | 02/20/2007 |
| 7174975 | Control systems and methods for active controlled bottomhole pressure systems Methods and control systems are provided for a wellbore drilling system having an active differential pressure device (APD device) in fluid communication with a returning fluid. The APD Device creates a differential pressure across the device, which reduces the pres... | 02/13/2007 |
| 7168507 | Recalibration of downhole sensors In downhole drilling tools, a first set of inexpensive and/or relatively small sensors that typically have lower accuracy and higher drift than conventional downhole sensors are located in the drill string adjacent to the bit. A second set of highly accurate sensors... | 01/30/2007 |
| 7165634 | Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells The steel drill string attached to a drilling bit during typical rotary drilling operations used to drill oil and gas wells is used for a second purpose as the casing that is cemented in place during typical oil and gas well completions. Methods of operation are des... | 01/23/2007 |
