CN214576881U - Well head blowout preventer with protective structure - Google Patents
Well head blowout preventer with protective structure Download PDFInfo
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- CN214576881U CN214576881U CN202120590172.4U CN202120590172U CN214576881U CN 214576881 U CN214576881 U CN 214576881U CN 202120590172 U CN202120590172 U CN 202120590172U CN 214576881 U CN214576881 U CN 214576881U
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Abstract
The utility model discloses a well head preventer with protective structure belongs to well head preventer technical field, and it includes the casing, the inner wall of casing and the surperficial threaded connection of lid, the upper surface of lid inner wall and the upper surface overlap joint of core are glued to the toper, the lower surface of core is glued to the toper and the inner wall overlap joint of pressing the spindle. This well head preventer with protective structure, receive ring sum closed semi-ring through the setting, make it on it the sloping block receive to drive closed semi-ring and remove right under the pressure effect of sloping block down, carry out the centre gripping with the drill pipe when making the closed semi-ring of its left and right sides remove, make the condition of proruption blowout make its staff that is relevant can be rapid reaction and start hydraulic pressure and seal it, the blowout medium dams when this kind of structure can effectively prevent proruption blowout, bring the buffering time of regulation for the staff, greatly reduced greasy dirt medium flow out ground and caused the pollution, the security of operation has been promoted simultaneously.
Description
Technical Field
The utility model belongs to the technical field of the well head preventer, specifically be a well head preventer with protective structure.
Background
A christmas tree is a wellhead assembly for a flowing well. The blowout preventer is used for daily production management such as oil testing, well workover, well completion and the like to close a well mouth to prevent blowout accidents, integrates full sealing and half sealing functions, has the characteristics of simple structure, easy operation, high pressure resistance and the like, and is a well mouth safety sealing device for preventing blowout commonly used in oil fields. When drilling petroleum well, it is installed on the wellhead casing head to control the well-blowing device of high-pressure oil, gas and water. When the pressure of oil gas in the well is very high, the blowout preventer can seal the well mouth. When the heavy mud is impressed from the drilling rod, there is the cross under its flashboard, can replace the mud that receives the gas invasion, increase the pressure of well inner fluid column, in order to push down the blowout of high-pressure oil gas, wherein present annular well head preventer removes through the inside pressure spindle of hydraulic drive when using, seal opening department after the closure appears through the extrusion toper gluey core when the pressure spindle removes, simultaneously when the drilling rod activity removes in inside, the cooperation toper is glued the core and can be kept certain laminating and closed, however this kind of well head preventer of present relies on hydraulic control completely, can not fine automation restrain proruption's great pressure blowout, make it have great hidden danger when the operation, proruption spun greasy dirt has great influence to the environment simultaneously.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In order to overcome prior art's above-mentioned defect, the utility model provides a well head preventer with protective structure has solved present annular well head preventer and has relied on hydraulic pressure completely when using to control, can not fine automation restrain proruption's great pressure blowout, makes it have great hidden danger when the operation, and proruption spun greasy dirt has the problem of great influence to the environment simultaneously.
(II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: a wellhead blowout preventer with a protection structure comprises a shell, wherein the inner wall of the shell is in threaded connection with the surface of a cover body, the upper surface of the inner wall of the cover body is in lap joint with the upper surface of a conical rubber core, the lower surface of the conical rubber core is in lap joint with the inner wall of a pressing ingot, the surface of the pressing ingot is in sliding connection with the inner wall of a hydraulic groove, the inner wall of the pressing ingot is in lap joint with the surface of a fixed cylinder, the surface of the fixed cylinder is sleeved with a sealing cylinder, the upper surface of the sealing cylinder is in lap joint with the bottom end of a spring, the lower part of the inner wall of the shell is in threaded connection with an installation seat, the upper surface of the installation seat is in lap joint with the lower surface of a pressed ring, the upper surface of the pressed ring is in lap joint with the lower surfaces of two closed half rings, the upper surfaces of the two closed half rings are in lap joint with the upper surface of the inner wall of the shell, and the opposite surfaces of the pressed ring and the two closed half rings are provided with corresponding two inclined blocks, the positioning device is characterized in that a plurality of positioning rods are arranged in the mounting seat, the surfaces of the positioning rods slide on the inner walls of the corresponding positioning holes, the positioning rods slide on the inner walls of the corresponding sliding holes, the positioning holes are formed in the upper surface of the pressed ring, and the sliding holes are formed in the surfaces of the corresponding closed semi-rings.
As a further aspect of the present invention: the upper surface of the inner wall of the hydraulic groove is provided with a sealing ring, and the lower surface of the cover body is fixedly connected with the upper surface of the sealing ring.
As a further aspect of the present invention: the surface of the pressing ingot is provided with a piston ring, and the inner wall of the hydraulic groove is clamped with a plurality of joints.
As a further aspect of the present invention: the lower surface of the compression ring is provided with a vortex groove, and the inner wall of the sealing cylinder is tightly attached to the inner wall of the shell.
As a further aspect of the present invention: the surface of the pressing ingot is attached to the inner wall of the cover body, and the upper surface of the pressed ring is consistent with the opposite surface inclined planes of the two corresponding inclined blocks arranged on the opposite surfaces of the two closed semi-rings.
As a further aspect of the present invention: the bottom of a fixed cylinder is fixedly connected with the lower surface of the inner wall of the shell, and the lower surface of a sealing cylinder is in lap joint with the lower surface of the inner wall of the shell.
As a further aspect of the present invention: the top end of the spring is in lap joint with the upper surface of the inner wall of the pressing ingot, and the spring is sleeved on the surface of the fixed cylinder.
As a further aspect of the present invention: a plurality of first through holes are formed in the surface of the fixed cylinder, and a plurality of second through holes are formed in the surface of the sealing cylinder.
As a further aspect of the present invention: the lower surface of the inner wall of the shell is provided with a flow guide hole, and the flow guide hole is communicated with the upper surface of the inner wall of the shell.
(III) advantageous effects
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the wellhead blowout preventer with the protection structure is provided with the pressure receiving ring and the closed semi-rings, when a high-pressure blowout occurs in use, along with the ejection of a medium from bottom to top, the ejected medium impacts an eddy current groove formed in the inner wall of the pressure receiving ring and generates an upward thrust to the pressure receiving ring, when the pressure receiving ring moves upwards, the lower inclined block on the upper surface presses the upper inclined block, so that the upper inclined block drives the closed semi-rings to move rightwards under the pressure of the lower inclined block, the drill pipe is clamped when the closed semi-rings on the left side and the right side move, and related workers can rapidly react and start hydraulic pressure to seal the blowout preventer under the condition of blocking the sudden blowout, and the structure can effectively prevent the ejected medium from being intercepted during the sudden blowout, bring about the adjusted buffering time for the workers and greatly reduce the pollution caused by the outflow of an oil stain medium to the ground, meanwhile, the operation safety is improved.
2. The wellhead blowout preventer with the protection structure is characterized in that the guide hole, the sealing cylinder, the fixed cylinder and the first through hole are arranged, when the closed semi-ring moves, the sliding hole on the surface of the closed semi-ring slides on the surface of the positioning rod inside, when the sliding hole slides to the position of the guide hole, oil can be circulated until media such as the oil enter the guide hole through the sliding hole until a large amount of the oil is poured into the sealing cylinder, the bottom cavity is full of the sealing cylinder after the sealing cylinder is pressed, the sealing cylinder moves upwards, the oil enters the inside of the pressure bar after the first through hole and the second through hole are communicated, the pressure bar is pressed to move upwards, the pressure bar starts to press the conical rubber core until the sealing of an opening is finished, and the structure can play a certain auxiliary hydraulic pressure to drive the pressure bar to press the conical rubber core so as to further inhibit the media from flowing out when in use, the conical rubber core has a certain adjusting effect, and can be matched with waiting hydraulic intervention drive to be more stable.
3. This well head preventer with protective structure, through setting up locating lever, slide opening, locating hole and mount pad, when using, when the bottom of casing is installed with the production tree, the locating lever receives spacingly, and the locating lever can keep pressing the ring and carry on spacingly with the closed semi-ring that corresponds simultaneously, can effectually prevent to press the ring and the condition that misplaces appears with closed semi-ring, makes two sloping blocks about its correspondence appear unable contact, can keep good stability simultaneously.
Drawings
Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;
FIG. 2 is a schematic view of a three-dimensional exploded structure of the present invention;
FIG. 3 is a three-dimensional structure diagram of the fixing cylinder of the present invention;
FIG. 4 is a schematic three-dimensional structure of the closed half ring of the present invention;
FIG. 5 is a schematic three-dimensional structure of the compression ring of the present invention;
in the figure: the device comprises a shell 1, a cover 2, a conical rubber core 3, a hydraulic groove 4, a pressing spindle 5, a fixing cylinder 6, a sealing cylinder 7, a spring 8, a closed half ring 9, a compression ring 10, an installation seat 11, a positioning rod 12, a flow guide hole 13, a sliding hole 14, a positioning hole 15, a first through hole 16, a joint 17, a second through hole 18 and a vortex groove 19.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
As shown in fig. 1-5, the utility model provides a technical solution: a wellhead blowout preventer with a protection structure comprises a shell 1, wherein the inner wall of the shell 1 is in threaded connection with the surface of a cover body 2, the upper surface of the inner wall of the cover body 2 is in lap joint with the upper surface of a conical rubber core 3, the lower surface of the conical rubber core 3 is in lap joint with the inner wall of a pressing ingot 5, the surface of the pressing ingot 5 is in sliding connection with the inner wall of a hydraulic groove 4, the inner wall of the pressing ingot 5 is in lap joint with the surface of a fixed cylinder 6, the surface of the fixed cylinder 6 is sleeved with a sealing cylinder 7, the upper surface of the sealing cylinder 7 is in lap joint with the bottom end of a spring 8, the lower part of the inner wall of the shell 1 is in threaded connection with an installation seat 11, the upper surface of the installation seat 11 is in lap joint with the lower surface of a pressed ring 10, the upper surface of the pressed ring 10 is in lap joint with the lower surfaces of two closed half rings 9, the upper surfaces of the two closed half rings 9 are in lap joint with the upper surface of the inner wall of the shell 1, the upper surface of the pressed ring 10 and the opposite surfaces of the two closed half rings 9 are provided with corresponding two inclined blocks, a plurality of positioning rods 12 are arranged in the mounting seat 11, the surfaces of the positioning rods 12 slide on the inner walls of corresponding positioning holes 15, the positioning rods 12 slide on the inner walls of corresponding sliding holes 14, the positioning holes 15 are formed in the upper surface of the pressed ring 10, and the sliding holes 14 are formed in the surface of the corresponding closed half ring 9.
Specifically, as shown in fig. 1 and 2, a sealing ring is disposed on the upper surface of the inner wall of the hydraulic groove 4, the lower surface of the cover body 2 is fixedly connected with the upper surface of the sealing ring, a piston ring is disposed on the surface of the pressing bar 5, a plurality of joints 17 are clamped on the inner wall of the hydraulic groove 4, an eddy groove 19 is disposed on the lower surface of the compression ring 10, the inner wall of the sealing cylinder 7 is tightly attached to the inner wall of the housing 1, the bottom end of the fixing cylinder 6 is fixedly connected with the lower surface of the inner wall of the housing 1, the lower surface of the sealing cylinder 7 is overlapped with the lower surface of the inner wall of the housing 1, the top end of the spring 8 is overlapped with the upper surface of the inner wall of the pressing bar 5, the spring 8 is sleeved on the surface of the fixing cylinder 6, a plurality of first through holes 16 are disposed on the surface of the fixing cylinder 6, a plurality of second through holes 18 are disposed on the surface of the sealing cylinder 7, a diversion hole 13 is disposed on the lower surface of the inner wall of the housing 1, the diversion hole 13 is communicated with the upper surface of the inner wall of the housing 1, through setting up hydraulic pressure groove 4, hydraulic pressure groove 4 can keep good leakproofness and fluid complex movable effect when using, through setting up the sealing washer, the sealing washer can keep the good sealed effect of briquetting 5 when using, it is more stable when hydraulic pressure groove 4 is inside to make it slide, through setting up joint 17, joint 17 can conveniently put through outside hydraulic pressure adjustment mechanism, through setting up vortex groove 19, vortex groove 19 can carry out certain interception to the medium of rapid flow when using, can possess fine atress effect simultaneously.
Specifically, as shown in fig. 3 and 4, the surface of the pressing bar 5 is attached to the inner wall of the cover body 2, the upper surface of the pressed ring 10 is consistent with the opposite surface inclined surfaces of the two corresponding inclined blocks arranged on the opposite surfaces of the two closed half rings 9, the closed half rings 9 are arranged, so that the middle drill pipe can be well clamped under the mutual matching when the closed half rings 9 are used, and the two corresponding inclined blocks are matched to move so as to keep a good sealing effect.
The utility model discloses a theory of operation does:
s1, when in use, the shell 1 is firstly arranged at the top end of the Christmas tree, when a high-pressure blowout occurs, along with the ejection of a medium from bottom to top, the ejected medium impacts an eddy current groove 19 formed in the inner wall of the pressure receiving ring 10 and generates an upward thrust to the pressure receiving ring 10, when the pressure receiving ring 10 moves upward, the lower inclined block on the upper surface presses the upper inclined block, so that the upper inclined block drives the closed semi-ring 9 to move rightward under the pressure of the lower inclined block;
s2, clamping the drill pipe when the closed half rings 9 on the left and right sides move to block the sudden blowout so that related workers can quickly react and start hydraulic pressure to seal the sudden blowout, wherein when the closed half rings 9 move, the sliding holes 14 on the surfaces of the closed half rings 9 slide on the surfaces of the positioning rods 12 inside the closed half rings 9, and when the sliding holes 14 slide to the positions of the diversion holes 13, oil can be circulated until media such as the oil enter the diversion holes 13 through the sliding holes 14;
s3, filling a large amount of oil into the sealing cylinder 7, enabling the sealing cylinder 7 to be full of the cavity at the bottom after being pressed, enabling the sealing cylinder 7 to move upwards, enabling the oil to enter the pressing ingot 5 after the first through hole 16 and the second through hole 18 are communicated, enabling the pressing ingot 5 to move upwards under pressure, enabling the pressing ingot 5 to start to press the conical rubber core 3 until the sealing of the opening is completed, and enabling the structure to play a certain auxiliary hydraulic pressure to drive the pressing ingot 5 to press the conical rubber core 3 to inhibit the oil from flowing out.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (9)
1. A wellhead blowout preventer with a protective structure, comprising a housing (1), characterized in that: the inner wall of the shell (1) is in threaded connection with the surface of the cover body (2), the upper surface of the inner wall of the cover body (2) is in lap joint with the upper surface of the conical rubber core (3), the lower surface of the conical rubber core (3) is in lap joint with the inner wall of the pressing spindle (5), the surface of the pressing spindle (5) is slidably connected with the inner wall of the hydraulic groove (4), the inner wall of the pressing spindle (5) is in lap joint with the surface of the fixed cylinder (6), the surface of the fixed cylinder (6) is sleeved with the sealing cylinder (7), the upper surface of the sealing cylinder (7) is in lap joint with the bottom end of the spring (8), the lower part of the inner wall of the shell (1) is in threaded connection with the mounting seat (11), the upper surface of the mounting seat (11) is in lap joint with the lower surface of the compression ring (10), the upper surface of the compression ring (10) is in lap joint with the lower surfaces of the two closed semi-rings (9), and the upper surfaces of the two closed semi-rings (9) and the inner wall of the shell (1), the upper surface of the compression ring (10) and the opposite surfaces of the two closed half rings (9) are provided with two corresponding inclined blocks, a plurality of positioning rods (12) are arranged in the mounting seat (11), the surfaces of the positioning rods (12) slide on the inner walls of the corresponding positioning holes (15), the positioning rods (12) slide on the inner walls of the corresponding sliding holes (14), the positioning holes (15) are formed in the upper surface of the compression ring (10), and the sliding holes (14) are formed in the surfaces of the corresponding closed half rings (9).
2. The wellhead blowout preventer with the protective structure according to claim 1, wherein: the upper surface of the inner wall of the hydraulic groove (4) is provided with a sealing ring, and the lower surface of the cover body (2) is fixedly connected with the upper surface of the sealing ring.
3. The wellhead blowout preventer with the protective structure according to claim 1, wherein: the surface of the pressing ingot (5) is provided with a piston ring, and the inner wall of the hydraulic groove (4) is clamped with a plurality of joints (17).
4. The wellhead blowout preventer with the protective structure according to claim 1, wherein: the lower surface of the compression ring (10) is provided with a vortex groove (19), and the inner wall of the sealing cylinder (7) is tightly attached to the inner wall of the shell (1).
5. The wellhead blowout preventer with the protective structure according to claim 1, wherein: the surface of the pressing ingot (5) is attached to the inner wall of the cover body (2), and the upper surface of the pressed ring (10) is consistent with the opposite surface inclined planes of the two corresponding inclined blocks arranged on the opposite surfaces of the two closed semi-rings (9).
6. The wellhead blowout preventer with the protective structure according to claim 1, wherein: the bottom of the fixed cylinder (6) is fixedly connected with the lower surface of the inner wall of the shell (1), and the lower surface of the sealing cylinder (7) is in lap joint with the lower surface of the inner wall of the shell (1).
7. The wellhead blowout preventer with the protective structure according to claim 1, wherein: the top end of the spring (8) is in lap joint with the upper surface of the inner wall of the pressing ingot (5), and the spring (8) is sleeved on the surface of the fixed cylinder (6).
8. The wellhead blowout preventer with the protective structure according to claim 1, wherein: the surface of the fixed cylinder (6) is provided with a plurality of first through holes (16), and the surface of the sealing cylinder (7) is provided with a plurality of second through holes (18).
9. The wellhead blowout preventer with the protective structure according to claim 1, wherein: the lower surface of the inner wall of the shell (1) is provided with a flow guide hole (13), and the flow guide hole (13) is communicated with the upper surface of the inner wall of the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120590172.4U CN214576881U (en) | 2021-03-24 | 2021-03-24 | Well head blowout preventer with protective structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120590172.4U CN214576881U (en) | 2021-03-24 | 2021-03-24 | Well head blowout preventer with protective structure |
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| Publication Number | Publication Date |
|---|---|
| CN214576881U true CN214576881U (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120590172.4U Active CN214576881U (en) | 2021-03-24 | 2021-03-24 | Well head blowout preventer with protective structure |
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| CN (1) | CN214576881U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114251070A (en) * | 2021-12-23 | 2022-03-29 | 江苏荣嶺机械制造有限公司 | Blowout preventer with dynamic fluid blowout prevention function and use method |
| CN117262945A (en) * | 2023-11-21 | 2023-12-22 | 上海华菱电站成套设备股份有限公司 | Mine wellhead protection device for mine hoist |
-
2021
- 2021-03-24 CN CN202120590172.4U patent/CN214576881U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114251070A (en) * | 2021-12-23 | 2022-03-29 | 江苏荣嶺机械制造有限公司 | Blowout preventer with dynamic fluid blowout prevention function and use method |
| CN117262945A (en) * | 2023-11-21 | 2023-12-22 | 上海华菱电站成套设备股份有限公司 | Mine wellhead protection device for mine hoist |
| CN117262945B (en) * | 2023-11-21 | 2024-01-23 | 上海华菱电站成套设备股份有限公司 | Mine wellhead protection device for mine hoist |
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