| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 221 | Apparatus for cutting columnar structures with reciprocally movable tensioned cutting wire | US167092 | 1993-12-16 | US5524517A | 1996-06-11 | Jerry H. Robinson |
| Systems and methods for cutting a well casing and then capping the cut well casing are provided. A well casing cutting assembly having a tensioned wire cutting element may first be moved into position relative to the well casing and operated so that the cutting element reciprocates transversely (i.e., in saw-like fashion) while simultaneously being advanced forwardly into cutting relationship with the well casing. The cutting assembly is removed from the cut well casing and replaced with a well capping assembly having a shield enclosure and a thread cutting subassembly. The thread cutting subassembly includes an interiorly threaded pipe coupling which rigidly carries a normally open, remotely controlled valving assembly and is mounted to the shield enclosure so as to be capable of both rotational and vertical movements relative to the cut well casing. By simultaneously rotating and downwardly displacing the thread cutting element, threads will be formed on the exterior surface of the well casing and will threadably couple the pipe coupling automatically thereto. The valving mechanism may then be operated so as to cap the well casing. Structure is provided which enable quick disassembly of the thread cutting subassembly from the pipe coupling so that the well capping assembly can be removed and reused. | ||||||
| 222 | Oil well fire extinguishing apparatus | US962778 | 1992-10-19 | US5309989A | 1994-05-10 | Goodman Grimsley |
| An apparatus for controlling well fires which has a controllable extension pipe, a clamping base and a sealing assembly. The sealing assembly includes a moveable sealing sleeve located between an outer and an inner nesting pipe and plastically deformable sealing material located at one end of the nesting pipes. The sealing assembly is attached to a clamping base. The clamping base can be of two different constructions, a top mount base which, along with the attached sealing assembly, is lowered over the well pipe and a side mount base which clamps from the side with the assembly rotated away from the well pipe. All apparatus controls and method steps can be remotely accomplished.The top mount base is clamped to the pipe after lowering the apparatus over the well pipe to the point where the well pipe passes through the clamping base and into the interior of the inner nesting pipe. The side mount base is clamped to the well pipe from the side, then the sealing assembly is rotated above the well pipe and lowered to the point where the well pipe is inserted into the inner nesting pipe. The sealing sleeve then forces the sealing material against the well pipe and the inner nesting pipe. The extension pipe is then controlled by actuating a controlling valve, capping the well and extinguishing the fire. The side mount clamping base can be removed from the controlled well for reuse after a clamping jacket is clamped to the exterior nesting pipe and the well pipe. | ||||||
| 223 | Pipe threading apparatus | US849711 | 1992-03-11 | US5285706A | 1994-02-15 | Jerry H. Robinson |
| Systems and methods for cutting a well casing and then capping the cut well casing are provided. A well casing cutting assembly having a tensioned wire cutting element may first be moved into position relative to the well casing and operated so that the cutting element reciprocates transversely (i.e., in saw-like fashion) while simultaneously being advanced forwardly into cutting relationship with the well casing. The cutting assembly is removed from the cut well casing and replaced with a well capping assembly having a shield enclosure and a thread cutting subassembly. The thread cutting subassembly includes an interiorly threaded pipe coupling which rigidly carries a normally open, remotely controlled valving assembly and is mounted to the shield enclosure so as to be capable of both rotational and vertical movements relative to the cut well casing. By simultaneously rotating and downwardly displacing the thread cutting element, threads will be formed on the exterior surface of the well casing and will threadably couple the pipe coupling automatically thereto. The valving mechanism may then be operated so as to cap the well casing. Structure is provided which enable quick disassembly of the thread cutting subassembly from the pipe coupling so that the well capping assembly can be removed and reused. | ||||||
| 224 | Oil wellhead fire extinguishing apparatus having adjustable support feet and labyrinth module | US765325 | 1991-09-25 | US5247999A | 1993-09-28 | John T. Fowler |
| The present invention is designed to be mounted over a flaming oil wellhead to extinguish the flames. The invention includes a base having hydraulically operable arms designed to allow secure support of the base over the oil wellhead even in uneven terrain. A cap device is mountable on the base and includes tangentially arranged ports designed to supply the interior of the cap with a fluid such as liquid nitrogen to cool and extinguish the flames. The cap may include a labyrinth tortuous path restrictor forcing escaping combustion products and other gases to follow a tortuous path to atmosphere to thereby cause the gases to lose energy and cool as they escape. | ||||||
| 225 | Apparatus and method for capping oil or gas wells | US760340 | 1991-09-16 | US5159983A | 1992-11-03 | Andrew R. Barron; Dennis F. Cronin, Jr.; Paul R. Manson |
| An apparatus and method for capping a burning or blown out oil or gas well are disclosed. A pipe is placed over a flange and casing on a wellhead and welded thereto using thermite welding. The thermite reaction occurs in one or more crucibles mounted to the pipe. Graphite feeders direct the molten metal produced by the reaction into apertures near the bottom of the central pipe. The feeders join the pipe at an angle such that the molten metal flows into the annular space between the interior of the pipe and the wellhead structure in a generally circular flow pattern. A malleable clamp to conform to the configuration of the pipe and flange is provided to hold the pipe in place over the flange and act as a mold for the molten metal during the welding process. After the weld has formed, a valve in the pipe is closed, which simultaneously shuts off the flow of oil and extinguishes the fire by depriving it of oil, its fuel. | ||||||
| 226 | Wellhead fire extinguisher and method extinguishing a well fire | US769793 | 1991-10-02 | US5154234A | 1992-10-13 | Paul B. Carrico |
| A wellhead fire extinguishing apparatus comprises a flame containment housing which is lowered into place above the wellhead fire to create a chimney-like updraft and draw the fire surrounding the wellhead into the housing. The housing is then lowered to the well platform or ground and the flame is cooled by a coolant/flame retardant to cause the ignition point of the flame to rise above a flapper valve in the housing. The flapper valve is closed by remote actuation to separate the flame from the fuel flowing from the wellhead. The unburned fuel is vented from the housing and the flame is extinguished by the coolant/flame retardant. | ||||||
| 227 | Mobile combined oxygen-free work compartment and fire extinguisher for oil well blowouts | US717272 | 1991-06-18 | US5131474A | 1992-07-21 | Henry L. Hunter, III |
| A mobile apparatus provides a safe environment for controlling oil wellhead gushers and fires at such gushers. It includes a main compartment, having a gas exchange lock access, and a flue stack, having a flue outlet, which form a gastight enclosure at the area around the wellhead. The flue stack opens to atmosphere at the flue outlet and a portion of the flue stack is moveable to control the size of the opening and, thus, the flow rate of exiting gases. A nonflammable environment is established in the apparatus, any fire present at the wellhead is relocated exterior to the enclosure, and the relocated fire is extinguished. The apparatus can be provided with at least one baffle that temporarily retains liquids impinging on it while not preventing the flow of gases from the enclosure, and a recovery basin that is positioned below the liquid-gas separation baffle(s) so as to collect and pass the liquids so collected exterior to the apparatus for recovery. | ||||||
| 228 | Capping equipment for blowout well | US646623 | 1991-01-31 | US5121793A | 1992-06-16 | Jean-Charles Busch; Yannick Guerrini; Jean Tag; Joseph Carrau |
| Device for blocking off a well in open flow which includes a blocking system (4) for blocking off the well, an anchorage system (3) to support said blocking system (4) and a movable and inclinable support and positioning system (5) which comprises a sliding ramp (6) and mechanism for moving the blocking system (4) to bring it above the end of the casing (2) to be blocked off. Application: exploration, production and storing of hydrocarbons. | ||||||
| 229 | Apparatus for extinguishing oil well fires and separating oil/gas streams thereof | US690663 | 1991-04-24 | US5115869A | 1992-05-26 | Dobran Flavio |
| A very simple, safe, and robust device for extinguishing oil well fires consists of an inclined duct which is connected to a vertical duct placed over an oil well fire, and of suitably arranged baffles which are inserted into the inclined dust for redirecting or separating the oil and gas streams. The purpose of the inclined duct is to separate the oil and gas from the two-phase mixture which is produced by a burning well and consequently to decrease the oil evaporation area or volume of combustible gas and starve the fire when the air inflow from the bottom into the vertical duct is reduced or eliminated. The fire-extinguishing device contains only baffles as moving parts which can be operated remotely through pulleys. The separated oil stream can be discharged into the atmosphere or collected into a holding tank until the next phase of work associated with capping of the oil well is initiated, thus reducing the environmental pollution problems and creating a safe zone for personnel to work. The apparatus can be easily constructed and assembled in the field and placed over the burning fire by a bulldozer or crane. By changing the size of the apparatus by proportional scaling of dimensions it is possible to extinguish many different types of oil well fires. | ||||||
| 230 | Subterranean well welding habitat | US517926 | 1990-05-02 | US5018321A | 1991-05-28 | Louis J. Wardlaw, III |
| A subterranean well fluid transmission welding habitat is provided, having an outer air supportable arcuate dome which is mounted over the well entry point to entrap welding slag, sparks, and the like. A fire-resistant shield is disposed around the interior of the dome. Air supplied to the dome for selectively suspending the habitat. A conduit, filter, or the like is provided through the top of the dome to permit discharge of smoke including particulate matter resulting from the welding procedure. The air supply may be in alignment with the smoke discharge whereby the supply of air forms a carrier fluid for transmitting the smoke and particulate matter out of the dome. | ||||||
| 231 | Blowout control means | US195139 | 1988-05-17 | US4828025A | 1989-05-09 | Abe P. Gonzales |
| A controller for oil well blowouts includes a barrel that fits closely around the collar connected to tubing extending into the oil well. The controller is placed over the collar so that the collar buts against a resilient ring so that the top of the collar is sealed by the ring to the barrel. The collar is pushed against the top by fingers of a collet. The collet is pushed upward by a nut that is on the bottom of the barrel. | ||||||
| 232 | Surface packer and method for using the same | US861767 | 1986-05-08 | US4718495A | 1988-01-12 | Eric P. Lubitz; David D. Szarka; Ernest E. Carter, Jr.; Robert L. Jessup |
| Surface packer and method for using the same. An annular body is mounted on the upper end of a string of casing which extends above a drilling rig platform. An annular seal is received within the body at the upper end thereof and may be sealed against the radially outer surface of a string of drill pipe which is lowered therethrough into the casing. A radial circulation port is formed in the body beneath the annular seal. In a cementing operation, a string of drill pipe is lowered in the casing to the lower end thereof and the annular seal is sealed thereagainst. The pipe-casing annulus is pressurized and cement is pumped into the drill pipe for cementing the casing into the well bore. In one embodiment, the annular seal is of the inflatable type which permits vertical and rotational manipulation of the pipe string while maintaining the seal thereagainst. | ||||||
| 233 | Cased water wells having flexible pad | US816260 | 1986-01-06 | US4673034A | 1987-06-16 | Donald J. Hansen |
| A cased water well comprising a generally tubular water well casing extending from subgrade to above grade. A flexible pad is attached to the water well casing for preventing aquifier contamination. The pad has an upwardly extending, generally tubular, flexible and water impermeable neck which is circumferentially continuous. The neck has an axially disposed opening which is adapted to be removably received over the upper terminus of the well casing and the neck is compressibly and sealingly attached to the outer surface of the well casing. A water impermeable flexible skirt is sealingly attached to the neck and extends radially outwardly a substantial distance in all directions from the neck. The flexible skirt has a lower surface which is adapted to be in contact with the earth and an upper surface which slopes continuously downwardly and outwardly from the neck to the outermost edges of the skirt. | ||||||
| 234 | Valve claw to be situated at the end of a pipe to mount a closing valve | US68738 | 1979-08-22 | US4325404A | 1982-04-20 | Peder M. Larsen; Uffe M. Larsen |
| A coupling for attachment to the end of a pipe comprising: a tubular housing open at opposite ends, one end being adapted to fit over the outside of a pipe end to which the coupling is to be attached and the other end being adapted to have a valve connected thereto; a clamping device within said housing for clamping the housing to the outside of the pipe end, the device including a plurality of circumferentially-arranged tapered radially adjustable segments and a mechanism for moving the segments radially inward into edge-to-edge abutment with each other so as to form a frusto cone having its larger end facing the pipe end, each segment at its wider end being in sliding sealing engagement with the inner surface of the housing and each segment at its smaller end having at least one gripping surface which faces radially inward so as to form a circumferentially continuous gripping surface when the segments are in their radially inward position, there being a space between the outer surfaces of the segments and the inner surface of the housing, which space is in communication with the open end of said housing facing away from the pipe end. | ||||||
| 235 | Apparatus for controlling and preventing oil blowouts | US118578 | 1980-02-04 | US4323118A | 1982-04-06 | Conrad E. Bergmann |
| Apparatus for controlling and preventing an oil blowout comprising a hollow frustoconical dome which is disposable over the end of a well discharge pipe or an offshore rig discharge pipe. At the top of the hollow dome is an axially disposed main valve for the blowoff of oil or gas escaping from the discharge pipe. A plurality of concentrically disposed two-way valves are disposed at the top of the dome about the main valve. With the main valve and the concentrically disposed valves open for the blow off of liquids and fluids, the dome is lowered over the discharge pipe. When the dome is fully lowered, it seats on the bottom surface surrounding the outlet of the discharge pipe. Concrete is poured around the dome to seal the dome to the bottom surface. Connected to the concentrically disposed valves are conduits for conducting gas and oil escaping from the discharge pipe to a storage facility, such as a barge, tank or the like, when the concentrically disposed valves are open for storing oil or gas. Flexible cables are connected to the concentrically disposed valves for opening and closing the same from remote locations. In the event of a fire, the concentrically disposed valves are selectively closed in the fire zones to shut off a supply of fuel to the fire in the fire zones. | ||||||
| 236 | System of firefighting and blow-out protection for a drilling operation | US27095672 | 1972-07-12 | US3804175A | 1974-04-16 | MILLER D |
| A system of fire fighting and blow-out protection for a drilling operation comprising valves and flow conduits interconnecting a low pressure and a high pressure source of inert gas to the interior of a blow-out preventer assembly. A pneumatically actuated valve connected to the blow-out preventer outflow conduit is moved to the closed position upon a predetermined pressure being effected by the flow of inert gas therewithin. Gaseous hydrocarbons leaking from the blow-out preventer are rendered noncombustible by admixing an inert diluent therewith by moving a flow control valve to a first position. Should the situation deteriorate into a more dangerous condition, the valve can be further opened whereupon a high pressure source of inert gas is flow conducted into the blow-out preventer while at the same time the outflow valve from the blow-out preventer is moved to the closed position, thereby setting the rubber of the blowout preventer assembly and increasing the effective hydrostatic head of the borehole, as well as lowering the inflammable limits of the escaping gaseous hydrocarbons.
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| 237 | Sliding cup injector | US49849865 | 1965-10-20 | US3281022A | 1966-10-25 | DE JARNETT FRANK D |
| 238 | Pitless well adapter and coupling apparatus | US54811255 | 1955-11-21 | US2771955A | 1956-11-27 | CARTER HERBERT E |
| 239 | Conveying and mixing apparatus | US34842640 | 1940-07-30 | US2320509A | 1943-06-01 | COOK ROBERT M |
| 240 | Cement mixer | US14364237 | 1937-05-20 | US2159205A | 1939-05-23 | CLEMENS JOHN F |
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