• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a device adapted to be fitted on a pipe end as an emergency device for shutting off fluid flowing out through the pipe under pressure, and is especially intended for use in drilling or extraction plants for oil. This device comprises two interconnected units provided with a throughpassage and includes means for guiding the device into position over the effluent fluid jet to permit pulling the device onto the pipe end, a means which senses the device as it achieves engagement with the pipe end and is adapted to branch off fluid from the jet at this moment, and cylinder-piston means or the like adapted to be actuated by such branched-off pressure fluid and arranged to act, on one hand, on clamping means for retaining the device to the pipe end and, on the other hand, on valve means for closing the throughpassage.
    公开号:SU1069636A3
    申请号:SU782630149
    申请日:1978-06-16
    公开日:1984-01-23
    发明作者:Олоф Лиссмир Пер
    申请人:Пер Олоф Лиссмир (Швеци )；
    IPC主号:
    专利说明:

    The invention relates to equipment that is installed at the end of an oil wellhead pipeline as an emergency device for cutting off liquid from a pipeline and is intended for use in drilling or oil extraction installations. A device is known for sealing a wellbore wellline, closing it in such a way that the flow of oil can be suspended C13. However, it does not automatically interrupt the flow without requiring manual intervention. It is also known a device for the geometrization of a borehole wellhead pipe, including a gripping unit made in the form of a clip with a thread and a piston installed in a sleeve and interacting with each other, and a housing with an axial channel and a ring cavity in which the C23 overlapping node is installed. However, to drive the sealing device, pressure is applied from the air from an external source. The purpose of the invention is to provide an automatic shut-off of the mouth using pressure flowing out of the fluid line. The goal is achieved by the fact that the housing is provided with a sleeve with openings for interacting with the pipeline, and the sleeve is mounted with the housing and made from a channel for communication of the sub-piston space with the annular body cavity and its axial passage. In addition, the housing has protrusions in an annular cavity in which a cylindrical ring is installed with paddles placed between the projections of the housing and spring-loaded relative to them, and a flange with axes on which discs are fitted with slits for accommodating pins associated with the housing. FIG. 1 shows the overlapping knot; in fig. 2 - capture unit, section; in fig. 3 - overlap the vacuum node, top view. A device for sealing a wellbore wellhead pipeline includes a gripping unit made as installed in a sleeve 1 and interacting with each other, clutches 2 with threading 3 and a piston 4, a housing with an axial channel 6 and an annular cavity 7 in which an overlapping unit with an actuator is installed. The housing 5 is provided with a sleeve 8 with windows 9 for interacting with the pipeline 10, and the sleeve 1 is provided with channels 11-13 for communicating the sub-piston space 14 with the annular cavity 7 of the housing 5 and the axial channel 6. The overlapping unit includes a cylindrical ring 15 with blades 16, and the case has protrusions 17, between which blades are mounted, which are spring-loaded with springs 18 relative to the protrusions of the case. The overlapping assembly has flanges 19 with axles 20, on which disdisc 21 are installed with slots 22 for accommodating I-type 23-tangencies associated with the body. The device, when the oil flows out, is directed to a position above the stream. oil in such a way that the stream of oil passes freely through channel 6. The pipeline is introduced through the funnel 24 and sleeve 25 before interacting with sleeve 8. The sleeve moves upward until windows 9 coincide with chamber 26. Oil branches into piston space 14, displacing pressure piston 4 and clips 2 to a position in which the clips engage with the pipeline. At the same time, a certain amount of oil passes through channel 13 into cavity 7 and rotates the annular element 15, which itself rotates the discs 21 to close in the central channel of the device in order to throttle oil outflow. As soon as the outflow is throttled, the pressure in the cavity 7 grows, whereby the annular piston 4 puts more pressure on the clamps 2, cutting them into the pipeline with increasing force. When the discs are completely closed, the passage through the channel of the device and the outflow of oil is interrupted. I To open the device, overflow channels 27 are placed. in the cover 28. These channels extend from the center channel b behind the disks 21 to those parts of the cylindrical cavity 7 where the springs 18 are located, i.e. to the side opposite to that on which the oil entering the cavity 7 acts. When the total force of the springs and overflow oil, which tends to keep the discs in the closed position, is equal, the discs are turned to the side so that the passage through the device is opened again, and the outflow of oil can be controlled by installing an additional valve.
    权利要求:
    Claims (2)
    [1]
    1. DEVICE FOR SEALING. Borehole wellhead, including the gripping unit, made in the form of a sleeve installed in a sleeve and interacting with a threaded clamp and a piston, and a housing with an axial channel and an annular cavity, in which an overlapping unit with a drive is installed, characterized in that, in order to ensure automatic closing of the mouth using the pressure of the liquid flowing out of the pipeline, the housing is equipped with a sleeve with windows for interaction with the pipeline, and the sleeve is installed coaxially with the housing! ” and is made with channels. For communication of the piston space with the annular cavity of the body and its axial channel.
    [2]
    2. The device pop. 1, characterized in that the casing has protrusions in an annular cavity in which a cylindrical ring is installed with blades placed pin housing.
    β
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1069636A3|1984-01-23|Device for sealing well head pipeline
    US4018089A|1977-04-19|Fluid sampling apparatus
    US4275842A|1981-06-30|Decoking nozzle assembly
    TW337545B|1998-08-01|Close and open device for fluids |
    ES2165411T3|2002-03-16|BIDIRECTIONAL GRINDING VALVE OF SELECTIVE OPENING.
    SK87495A3|1995-11-08|Safety shut-off for gas lines
    SE439191B|1985-06-03|VALVE, INCLUDING A CYLINDRICAL SHELTER WITH AXIALLY SEPARATE INPUT AND OUTPUT SPORTS
    SE8103820L|1982-01-23|DEVICE FOR TAP VALVES
    GB1375354A|1974-11-27|
    FR2409445A1|1979-06-15|Quick disconnect pipe coupling - has self closing valves, with spring piston and sleeve to cover radial flow hole
    US2977616A|1961-04-04|Pig ball receiver
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    FR2417052A1|1979-09-07|INSTALLATION CONTAINING A PIPING FOR MOVING FLUID, WITH ONE OR MORE LATERAL BYPASSES
    SU1296729A1|1987-03-15|Arrangement for protecting flexible ventilation pipes against mechanical damage
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    SE8603887L|1987-03-19|REGULATOR VALVE AND DOUBLE-ACTIVE VALVE DEVICE CONTAINING A LARGE VALVE
    FI81893C|1990-12-10|STRUCTURAL STRUCTURE FOR THE TRACTION AND RELEASE.
    SU956763A1|1982-09-07|Regulating pipe connection
    SU500408A1|1976-01-25|Gland valve
    RU2101595C1|1998-01-10|Device for emergency shut-off of hydraulic system pipe line
    ES248628U|1980-05-16|Perfected device to make derivations in pipes. |
    BR9702993A|1999-09-14|Liquid diverter device with automatic flow blocking system
    RU2011791C1|1994-04-30|Process of running of sea oil-and-gas field and device for its realization
    SU1265269A1|1986-10-23|Hydrant
    SU1333930A1|1987-08-30|Arrangement for closing pipeline
    同族专利:
    公开号 | 公开日
    SE7707065L|1978-12-18|
    GB2001686B|1982-01-20|
    FR2394738B1|1983-11-10|
    US4192376A|1980-03-11|
    NO782060L|1978-12-19|
    GB2001686A|1979-02-07|
    SE412104B|1980-02-18|
    FR2394738A1|1979-01-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1455731A|1922-01-21|1923-05-15|Thomas J Kelly|Automatic blow-out preventer|
    US1543637A|1923-04-05|1925-06-23|John M Woll|Device for controlling the flow of wells|
    FR565801A|1923-05-04|1924-02-05|Device to prevent gas expulsion from well drilling rigs|
    US1968297A|1929-08-07|1934-07-31|Frederic W Hild|Automatic blow-out preventer|
    US1899922A|1931-07-03|1933-03-07|Lee J Black|Blow-out preventing attachment for casing heads|
    US3241864A|1962-10-29|1966-03-22|Shaffer Tool Works|Automatic connector|
    US3533468A|1968-12-23|1970-10-13|Hydril Co|Well pressure compensated well blowout preventer|US4444250A|1982-12-13|1984-04-24|Hydril Company|Flow diverter|
    US4502534A|1982-12-13|1985-03-05|Hydril Company|Flow diverter|
    US4456063A|1982-12-13|1984-06-26|Hydril Company|Flow diverter|
    US4456062A|1982-12-13|1984-06-26|Hydril Company|Flow diverter|
    US4718495A|1986-05-08|1988-01-12|Halliburton Company|Surface packer and method for using the same|
    US4828025A|1988-05-17|1989-05-09|Mrw Partnership|Blowout control means|
    GB2254632A|1991-04-11|1992-10-14|Peter Bernard Nunnery|Controlling damaged wellheads.|
    WO1993005268A1|1991-09-03|1993-03-18|Hans Joachim Altmeyer|Device for capping the end of a pipe through which a fluid flows, in particular an oil well|
    US5285706A|1992-03-11|1994-02-15|Wellcutter Inc.|Pipe threading apparatus|
    US8555977B2|2010-10-28|2013-10-15|Blueshift, Inc.|Remotely operated underwater redirection plenum chamber for spill response|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE7707065A|SE412104B|1977-06-17|1977-06-17|IF RUERABLE APPLICABLE DEVICE FOR NOD-SHUTTER THROUGH THE PIPE WITH PRESSURE EQUIPPING FLUIDUM|
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