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| Number | Title | Issue Date |
| 7905298 | Systems and methods employing a variable angle guide for a drill Disclosed are systems and methods for drilling in an environment having a fluid and a bed. The method includes positioning a platform such that the fluid is between the platform and the bed; and assembling a guide, the assembled guide being straight. The method subs... | 03/15/2011 |
| 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 |
| 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 |
| 7234538 | Method for sinking a borehole in the ground and wet boring tool The invention relates to a method for sinking a borehole in the ground, in which a wet boring tool with a removal area for producing or advancing a borehole is used, the borehole is at least partly filled with a fluid and in the borehole is formed a filling area and... | 06/26/2007 |
| 6659182 | Retrievable suction embedment chamber assembly A method and apparatus for installing conductor casing for offshore oil wells. In the preferred embodiment of the present invention, a retrievable suction embedment chamber assembly drives a string of casing into the seafloor using hydrostatic pressure by... | 12/09/2003 |
| 6484820 | Method and device for driving bore-holes, especially in the sea bed, using a guide tip A process and an apparatus for sinking drill holes, in particular exploration and extraction drill holes, with a drill pipe, which at its end facing the floor to be mined is provided with a guide point fixed in the longitudinal direction of the drill pipe... | 11/26/2002 |
| 6325160 | Undersea drilling template release mechanism and method An undersea drilling template adapted to be lowered onto a seabed by a drillpipe. The template comprises a template base and at least one arm having a releasable clamping assembly for releasably connecting the template to the drillpipe. The clamping assem... | 12/04/2001 |
| 6325158 | Method and device for mounting of a seabed installation A method for mounting a seabed installation including a drilling template and a manifold on a mooring device anchored to the seabed. The mooring device comprises an open guide boring. The drilling template and the manifold are arranged to be suspended sep... | 12/04/2001 |
| 6129487 | Underwater pile driving tool A tool is provided for use in submerged condition for installing anchor or foundation elements such as piles in a ground formation that is submerged under a body of water. A hammer body is fixedly supported in axial alignment with the head of a pile that ... | 10/10/2000 |
| 5931235 | Cutter head, boring jig and device and process for sea bottom boring A cutter head for retrieving earth samples, in particular for taking underwater samples, has, because of frustum-shaped cutting wheels, an approximately round bore cross section. In an associated boring jig, a tube with a cross section corresponding appro... | 08/03/1999 |
| 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 |
| 5560436 | Single drilling guide base for subsea oil wells A single drilling guide base for subsea oil wells includes two parts, namely a lower part (1) and an upper part (2), which are bolted together (at 7). The whole arrangement is provided with a seating indicator (5) connected to the lower part and holes in ... | 10/01/1996 |
| 5479990 | Rising centralizing spider A mechanical device for centralizing a subsea riser in an opening in a floating drilling vessel. The centralizing device includes at least three arms that are pivotally connected at one end to the vessel and pivotally connected at the other end to a rotat... | 01/02/1996 |
| 5069287 | Retrievable guide base for subsea well A retrievable guide base and gimbal unit for a subsea well, and a tool for use with a pipe running to retrieve the guide base and gimbal from the subsea wellhead.... | 12/03/1991 |
| 4512408 | Moonpool guidance system for drill strings having attached umbilical lines A system for guiding a drill string with an attached umbilical line through a moonpool of a floating structure. The system comprises a support means, and a workhead assembly secured to the outer end of the support means. The workhead assembly is adapted t... | 04/23/1985 |
| 4512409 | Moonpool guidance system for floating structures A guidance system for centering and guiding various drill strings or risers within a moonpool of a floating structure, e.g. a caisson vessel. The system comprises one or more guidance vehicles. Each vehicle is movably mounted on a separate track. The trac... | 04/23/1985 |
| 4510985 | Stacked open bottom temporary guide base for offshore drilling A temporary guide base for use in drilling underwater wells in areas where the bottom conditions are unstable comprises a plurality of boxes opened at the bottom having a centrally disposed hole for casing, and vent means to allow retrieval of the guide b... | 04/16/1985 |
| 4472080 | Method for installing and connecting underwater flowlines In installation of a flowline and connection thereof to an underwater installation equipped with guide lines extending from the installation to an operational base at the surface of the body of water, a pile or other upright support is first installed in ... | 09/18/1984 |
| 4216835 | System for connecting an underwater platform to an underwater floor A modular underwater support platform having interconnecting elements is lowered into position by a conductor pipe which in turn is connected to and supported from a drill pipe. Releasable hydraulic connections connect the platform to the conductor pipe a... | 08/12/1980 |
| 4119145 | Column structure enabling handling appliances on the seabed, particularly for the assembly and maintenance of well-heads The invention concerns the handling of appliances on the seabed, particularly for handling and maintaining well-heads and corresponding installations. For handling the well-heads, trolleys are mounted for travel along a column which is articulated to a ba... | 10/10/1978 |
