序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
61 PETROLEUM WELL INTERVENTION WINCH SYSTEM US14235410 2012-09-10 US20140174716A1 2014-06-26 Morten Talgø; John Helvik
A petroleum well intervention winch system includes a high pressure confining housing for a drum for a rope to a tool string. The pressure confining housing has a connector with an aperture for the rope to a top of a tool string gate chamber on vertical bore BOP valves on a wellhead on the petroleum well. The rope runs through the aperture via a capstan to the drum. The capstan is driven by a first motor through a first high pressure proof magnetic coupling across a wall of the housing. The drum is driven by a second motor through a second high pressure proof magnetic coupling across the wall of the housing. The capstan is subject to a load tension from the rope and is provided with a hold tension on the rope from the drum. The second motor exerts a constant hold tension on the rope via the drum.
62 Separation device for material from a drilling rig situated on the seabed US11910823 2007-03-16 US07644768B2 2010-01-12 Per Olav Haughom
A drilling rig device (1) situated on the seabed (11), where the drilling rig (1) is sealingly enclosed against the surroundings, wherein the drilling rig (1) is liquid-filled and provided with a separator (16) arranged to separate material (17) from the liquid.
63 Separation Device for Material from a Power Tong on a Drilling Rig Situated on the Sea Bed US11910868 2007-03-16 US20090014213A1 2009-01-15 Per Olav Haughom
A drilling rig device (1) situated on the seabed (11), where the drilling rig (1) is sealingly enclosed against the surroundings, wherein the pipe (23) coupling unit (24) of the drilling rig (1) is closed, provided with seals (25) against the pipe (23) and connected to a liquid collector and separator (33).
64 Mobile submersible caisson for underwater oil-well drilling and production US544037 1990-06-26 US5098219A 1992-03-24 James V. Harrington; William L. Bohannan; Frank P. Davidson
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 technique applies to water depths beyond 300 ft. and in areas where severe winds, waves, spray and frigid atmosphere can cause long downtime or make it impossible to maintain the positions of surface platforms for extended periods of time. Caissons containing drilling, completion, workever, separation, pumping and compressing equipment are towed to sea in the caisson in the horizontal position. At the work site the caisson is erected, connects an attached wire cable to a platform placed on the sea bottom, and is submerged and winched down. The caisson mates and becomes sealed with the platform, providing a one atmosphere working space for the drilling crew. Water between the caisson and the platform is pumped out so this area can also be used as a work area. Drilling control crews are rotated between the sea surface and the caisson at designated intervals while the caisson remains in place. When the caisson completes the drilling operation it is disconnected and ballasted such that it departs the platform and surfaces to be restocked from a ship or towed back to a pier for restocking. Other caissons, having other work functions, can then move to the undersea platform site to carry on other programmed activities.
65 Mono-atmospheric chamber US143139 1988-01-05 US4913590A 1990-04-03 Bjornar Svenning; Per Brevig
A mono-atmospheric chamber module for placing on the top of a Christmas tree (1) in a well-head, to keep equipment and personnel at surface conditions during the execution of varied well operations. The chamber module comprises a mainly oblong cylindrical mantle (4) with associated base-ends. An opening (7) for tight engagement with the top of the Christmas tree (1) is arranged in the lower base-end (5). The upper base-end (6) is detachable. Inside the module, a pressure resistant personnel chamber (14) is arranged with direct connection to an access opening (19) placed in the cylinder mantle (4).
66 Offshore drilling and/or production system US834798 1986-02-28 US4746245A 1988-05-24 Harald J. Mork
System for development and exploitation of oil and or gas fields offshore, including drilling and the employment of a gravity platform (6). An elevated foundation (2) is established on the seabed (1) for placing of a predrilling template (7) on top (3) of the foundation, preferably a rock-fill foundation. One or several wells is predrilled from at least one cavity of the predrilling template (7), after which a gravity platform is placed on the foundation (2), at least one of the shaft of which platform being downwardly open and arranged for cooperation with the predrilling template (7). After installation of the platform drilling-, production- and living quarter modules (16, 17, 18) are placed on the platform deck (15). Water is pumped out of the shaft (11) and the cavity in the predrilling template (7), in this way providing a dry 1-atmospheric chamber at the base of the platform where operations like connecting wells to conductor pipes etc. may take place.
67 Subsea wellhead connection assembly and methods of installation US371901 1982-04-26 US4437521A 1984-03-20 Emmett M. Richardson; Angelos T. Chatas; Joseph R. Padilla
A subsea wellhead connection assembly for establishing fluid communication and production capability between a subsea wellhead and an adjacent subsea manifold system. The assembly includes conduit means for fluidly connecting the wellhead and the manifold system, the conduit means having one end extending substantially horizontally and the other end situated below the horizontal end; wellhead connector means fluidly connected to the lower end of the conduit means for releasably connecting the conduit means to the wellhead upon downward movement of the assembly to establish fluid communication therebetween; manifold system connector means fluidly connected to the horizontal end of the conduit means for releasably connecting the conduit means to the manifold system upon lateral movement of the manifold system connector means to establish fluid communication therebetween; and a guide frame rigidly secured to the wellhead connector means for supporting the manifold system connector means and the conduit means, and for vertically aligning the wellhead connector means over the wellhead and horizontally aligning the manifold system connector means with the manifold system. A method of establishing fluid communication and production capability between a marine floor wellhead and an adjacent subsea manifold system employing the aforecited wellhead connection assembly components is also disclosed.
68 Diving structure and method of deployment of the structure US096400 1979-11-21 US4286896A 1981-09-01 Daniel T. Melitz; Kenneth L. Searle; Brian E. Woodman
A diving bell deployment structure includes a launch tube for a diving bell, the bell having a supporting bell hoist wire. A boom is positioned from the structure to a point vertically above the desired underwater deployment position, and carries a boom hoist wire which is capable of connecting to the bell through the base of the launch tube. Differential pay out of the boom hoist wire and bell hoist wire allows exit of the bell from the launch tube and lateral deployment of the boom and launch tube.
69 Underwater hull or tank US62064 1979-07-30 US4282823A 1981-08-11 Giunio G. Santi
A structure for an underwater hull or tank which is required to withstand a high external pressure due to use at great immersion depths. The hull or tank is composed of one or more toric components formed of metal, which may be filled with a pressure-resistant material for added strength. The toric components are interconnected by connecting rings welded between adjacent toric components, and longitudinal connecting beams which are welded to the toric components and connecting rings.
70 Stand-by service structure for casual off-shore attendance US918688 1978-06-23 US4268191A 1981-05-19 Samuel Tuson
The invention relates in improvement in or relating to a stand-by service structure for casual off-shore attendance. The service structure comprises an emergent articulated column pivotally connected with its submerged bottom end to a base member resting on the sea-bed. Said column is fitted with a base member module such as a base member with a workshop caisson comprising at least one opening giving access to the sea-bed and adapted to be closed in fluid-tight relationship. Furthermore, said workshop caisson is adapted to directly communicate at least temporarily with the outer atmosphere at the water surface.
71 Immersion apparatus carrying detachable and self-contained prospecting and submarine work units US918435 1978-06-23 US4164195A 1979-08-14 Gianfranco Frigeni
Immersion apparatus for carrying out submarine works, comprising a master chamber connected to a surface unit and intended to be lowered to the area of submarine work, self-propelled work units branching out from said master chamber and having atmospheric pressure therein and being connected thereto by a so-called umbilical cord, the work units being provided with work arms operable from inside thereof by pushbuttons and pedals.
72 Submersible chamber arrangement US826661 1977-08-22 US4149818A 1979-04-17 Frederic L. Hettinger; Joel Rizzo
Diving apparatus which includes a bell assembly normally negatively buoyant and including a bell. There is a frame movable vertically beneath the sea surface and having a portion defining a path. Such frame is movable between an upper position and a lower position above the subsea surface at which the frame can be made temporarily stationary. Bell moving apparatus is disposed between the bell assembly and the frame for moving the bell between a lower position adjacent the subsea surface and an upper position adjacent the frame. Apparatus is provided for mounting the bell assembly for movement along such path.
73 Sub-sea well heads US771357 1977-02-23 US4134456A 1979-01-16 Kenneth Ball
A sub-sea well head comprising a connector and a christmas tree which is enclosed in a capsule is characterized in that a master valve is contained within a member forming the foot of the christmas tree, the member penetrating and being sealed into the bottom of the capsule and supporting the capsule, and in that the master valve is contained within a part of the member within the capsule.
74 Work arm system for submergible chamber US757988 1977-01-10 US4098088A 1978-07-04 Burton Hoster Mason
A work arm system for a submergible chamber wherein a plurality of work arms are rotatably mounted to the chamber and are retractably extensible, so as to provide a plurality of tools for work at a subsea station, such as an offshore well-head station. One arm is provided with tool mounts at opposite ends, both ends being retractably extensible so that each end may alternatively be disposed to the subsea station. The present work arm system permits several work functions to be performed without resufacing of the chamber.
75 Submersible chamber US694833 1976-06-10 US4094159A 1978-06-13 Frederic L. Hettinger
Diving apparatus which includes a bell assembly normally negatively buoyant and including a bell. There are frame means movable vertically beneath the sea surface. Such frame means are movable between an upper position and a lower position above the subsea surface and at which the frame means can be made temporarily stationary. Bell moving means are connected between the bell assembly and the frame means for moving the bell between a lower position adjacent the subsea surface and an upper position adjacent the frame means.
76 Speed measurement system for turbine power plant US624351 1975-10-21 US4016723A 1977-04-12 Earl T. Farley
A speed measurement system for converting signal pulses directly into a 13 bit binary number for input to a digital processor is disclosed. The signal pulses are generated as a function of incremental shaft rotation. A plurality of additional pulses are injected in the pulse train between successive displacement or signal pulses, such that a stream of equally spaced pulses is produced at a predetermined speed. The number of generated displacement and injected pulses are counted during predetermined time intervals for providing a direct speed measurement.
77 Method of providing an underwater enclosure US506606 1974-09-16 US3991583A 1976-11-16 John T. Scurlock
An inflatable underwater structure for providing an artificial environment around a work area, for example, at the sub-sea base of an off-shore oil platform, permitting such work as welding and the like; the structure is made up of one integral sheet of material for a custom job or a series of selected sheets fastened together about the structural support members; the material includes zippered sections so that the material can be placed about and around the structural members; in order to insure a substantially air-tight system, neck sealing means are included about the structural members at their intersection with the sheet material as well as air-tight means within the zippered sections; although the system could be used on land, it is particularly applicable to sub-sea situations.
78 Marine structure with hydraulic tensioner US594923 1975-07-10 US3968656A 1976-07-13 David W. Kalinowski
A tension leg marine structure or working platform is floatably positioned above an offshore working site, being maintained in place by a plurality of tension cables that connect to anchors at the sea floor. A riser which extends between the structure and the sea floor is laterally supported by a hydraulic tensioning system adapted to be adjusted in conformance with the platform's and the riser's movement.
79 Underwater wellhead completions with portable atmospheric cellar US525046 1974-11-18 US3964543A 1976-06-22 James T. Rodgers
This invention concerns means for protecting a marine wellhead (including the Christmas tree) on an offshore hydrocarbon-producing platform from damage due to fire. Special means are provided to place the wellhead a small depth, e.g., 25 to 50 feet, below the water surface under the deck of the offshore platform. These special means include a horizontal plate supported by the platform and sealed to the upper end of the casing. A cylindrical housing, called a "portable cellar," is lowered from the platform and seals with the horizontal plate. The cellar housing extends above the surface of the water. Water is then pumped out of the sealed cellar so that work on or through the wellhead can be done in a normal open-air environment. After the operation is performed on or through the wellhead, the cellar is removed, the water again surrounds the marine wellhead, so that, in case of fire, it cannot be damaged by heat.
80 Service module for hostile environment US547850 1975-02-06 US3946571A 1976-03-30 Oscar Glenn Pate; Angus Loughlin Lyons, Jr.
A service module adapted for service work while protecting workers in hostile environments utilizes an insulated capsule to be lowered over the service area, which capsule contains a work area inside for workmen to perform the required service operations. Power and materials are supplied to the inside of the capsule by an umbilical connected to external sources and the capsule has an entranceway connectable to external transportation means to fully protect the workers when transferring into and out of the capsule.
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