CN114856481A - Oil recovery well head blowout preventer convenient to installation - Google Patents
Oil recovery well head blowout preventer convenient to installation Download PDFInfo
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- CN114856481A CN114856481A CN202210219147.4A CN202210219147A CN114856481A CN 114856481 A CN114856481 A CN 114856481A CN 202210219147 A CN202210219147 A CN 202210219147A CN 114856481 A CN114856481 A CN 114856481A
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- plugging
- barrel
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- 238000011084 recovery Methods 0.000 title claims description 3
- 238000009434 installation Methods 0.000 title abstract description 5
- 239000003921 oil Substances 0.000 claims abstract description 38
- 230000000903 blocking effect Effects 0.000 claims abstract description 33
- 230000002265 prevention Effects 0.000 claims abstract description 33
- 230000001681 protective effect Effects 0.000 claims abstract description 31
- 238000005056 compaction Methods 0.000 claims abstract description 20
- 238000003825 pressing Methods 0.000 claims abstract description 17
- 238000005520 cutting process Methods 0.000 claims abstract description 16
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 16
- 238000000605 extraction Methods 0.000 claims abstract description 11
- 238000005507 spraying Methods 0.000 claims description 24
- 210000003027 ear inner Anatomy 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 claims 2
- 230000009471 action Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 210000003128 head Anatomy 0.000 description 3
- 239000007921 spray Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/204—Keeping clear the surface of open water from oil spills
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Road Paving Machines (AREA)
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Abstract
The invention provides an oil extraction wellhead blowout preventer convenient to install, which comprises a pressing base, a protective frame, a fine adjustment lug plate, a wellhead sleeve, a lateral anti-blocking cylinder, a tightening screw, an adjusting handle, a fine adjustment pipe assembly convenient to install, a side flange seat, a supporting rod, a locking nut, an upper plugging cylinder, a first upper flange, a second upper flange, a plugging compaction cylinder, a hoisting lug plate, a locking bolt, a hydraulic cylinder protective cylinder, a protective seat, a hydraulic oil pipe oil inlet connecting pipe, a hydraulic oil pipe oil outlet connecting pipe, a blowout prevention clamping cylinder, a tightening hydraulic rod, a secondary plugging disc, a left side blowout prevention disc and a right side blowout prevention disc. The invention can finely adjust the shaking direction of the pressing base, thereby increasing the convenience and flexibility of installation; the function of lifting and cutting an oil pipe is realized under the action of the concave arc-shaped blocking seat, the first cutting edge face, the second cutting edge face and the convex arc-shaped blocking seat, and then the descending of the jacking hydraulic rod and the secondary plugging disc is controlled, so that the top part of the pipe is plugged.
Description
Technical Field
The invention belongs to the technical field of oilfield blowout prevention equipment, and particularly relates to an oil extraction wellhead blowout prevention device convenient to install.
Background
The blowout preventer is used for closing a wellhead in the operation processes of oil testing, well workover, well completion and the like to prevent blowout accidents, integrates the full sealing function and the half sealing function into a whole, 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.
In the process of oil field exploitation, when equipment in an oil well is damaged, an oil pipe needs to be plugged, so that blowout accidents are prevented, the equipment is convenient to maintain, the existing blowout preventer for oil exploitation mostly comprises a circular plate, a piston, a sealing ring, a flange, a bolt and the like, and a worker fixes the circular plate on the oil pipe through the bolt and the flange to plug.
In addition, the invention discloses a blowout preventer of an oil extraction wellhead with the Chinese patent publication number of CN104314516A, which is composed of a valve body and a valve ball, wherein the valve body is in a through cylinder shape, the valve ball is in a round cake structure, fixing rods are arranged on two axial sides of the valve ball, a valve seat is arranged on the upper portion of the inner wall of the valve body, the valve ball is arranged in the valve body, a first baffle and a second baffle are respectively inserted into the fixing rods on the two sides of the valve ball, a plurality of convex sliding blocks are longitudinally arranged on the inner wall of the valve body, a plurality of sliding grooves matched with the sliding blocks are arranged on the edge of the valve ball, and the number of the sliding grooves is the same as that of the sliding blocks. But the problem that the plugging is relatively poor in blowout prevention effect and relatively single in plugging mode exists when the existing oil extraction wellhead is plugged in a blowout prevention manner, and the plugging is not convenient to disassemble and assemble.
Therefore, the invention is necessary to provide a blowout preventer of an oil production wellhead, which is convenient to install.
Disclosure of Invention
In order to solve the technical problems, the invention provides an oil extraction wellhead blowout preventer convenient to install, which aims to solve the problems that the existing oil extraction wellhead blowout prevention plugging is inconvenient to disassemble and install, the plugging blowout prevention effect is poor and the plugging mode is single.
A blowout preventer for oil extraction well mouth convenient to install comprises a pressing base, a protective frame, a fine adjustment lug plate, a well mouth sleeve, a lateral anti-blocking cylinder, a tightening screw, an adjusting handle, a fine adjustment pipe component convenient to mount, a lateral flange seat, a supporting rod, a locking nut, an upper blocking cylinder, an upper flange I, an upper flange II, a blocking compaction cylinder, a hoisting lug plate, a locking bolt, a hydraulic cylinder protective cylinder, a protective seat, a hydraulic oil pipe oil inlet connecting pipe, a hydraulic oil pipe oil outlet connecting pipe, a blowout prevention clamping cylinder, a tightening hydraulic rod, a secondary blocking disc, a left blowout prevention disc and a right blowout prevention disc,
the protective frame is connected to the middle position of the upper part of the pressing base through a bolt; the fine adjustment lug plates are respectively bolted at the left side and the right side of the upper part of the pressing base; one end of the wellhead casing penetrates through the middle position in the protection frame and is welded with the inside of the pressing base, and the other end of the wellhead casing is connected with the middle position of the lower part of the blowout prevention clamping barrel through a bolt; the lateral anti-blocking barrel is respectively bolted at the middle positions of the left side and the right side of the anti-spraying clamping barrel and is communicated with the inside of the anti-spraying clamping barrel; the jacking screw rod is movably embedded in the middle position inside the lateral anti-blocking barrel and is clamped with the middle positions outside the left anti-spraying disc and the right anti-spraying disc; the adjusting handle is in threaded connection with the outer side of the tightening screw rod; the convenient-to-mount fine adjustment pipe assembly is connected with the fine adjustment lug plate; the side flange seats are respectively in threaded connection with the left side and the right side of the blowout-preventing clamping barrel and cover the outer side of the lateral anti-blocking barrel; the supporting seat is welded at the outer side position of the outer part of the lateral anti-blocking cylinder; the supporting rod is transversely screwed between the side flange seat and the supporting seat; the locking nut is in threaded connection with the outer surface of the supporting rod and clamped on the outer side of the supporting seat; the upper plugging cylinder is welded in the middle of the upper part of the blowout prevention clamping cylinder and is communicated with the interior of the blowout prevention clamping cylinder; the upper flange I is welded on the upper part of the upper plugging cylinder; the upper flange II is welded at the lower part of the plugging compaction cylinder; the hoisting ear plates are respectively bolted at the upper parts of the left side and the right side of the plugging compaction cylinder;
the locking bolt is in threaded connection with the upper part of the outer side of the plugging compaction barrel; the hydraulic cylinder protecting barrel is connected to the middle position of the upper part of the plugging compaction barrel through a bolt; the protective seat is connected to the top of the hydraulic cylinder protective cylinder through a bolt; the oil inlet connecting pipe of the hydraulic oil pipe is connected to the right side of the upper part of the protective seat in a threaded manner and is embedded with the jacking hydraulic rod; the oil outlet connecting pipe of the hydraulic oil pipe is connected to the left side of the upper part of the protective seat in a threaded manner and is embedded with the jacking hydraulic rod;
the jacking hydraulic rod is arranged in the plugging compaction cylinder and is connected to the top of the inner side of the hydraulic cylinder protection cylinder through a bolt; the secondary plugging disc is connected with the output end of the jacking hydraulic rod through a bolt; the left blowout prevention disk and the right blowout prevention disk are respectively arranged at the left side and the right side of the interior of the blowout prevention clamping barrel.
Preferably, the upper part of the left side anti-spraying disc is die-cast with an inwards concave arc-shaped blocking seat; the right side of the left side blowout prevention plate is polished to be provided with a first cutting edge surface; the concave arc-shaped blocking seat is arranged in an arc shape; the right side edge of the concave arc-shaped blocking seat is arranged in a blade shape.
Preferably, the upper part of the left side of the right side anti-spraying plate is provided with an outer convex arc-shaped blocking seat; a second cutting edge surface is arranged on the left side of the lower part of the right side blowout prevention plate; the convex arc-shaped blocking seat is arranged in a convex arc shape.
Preferably, the well head sleeve pipe inner wall intermediate position screwed connection have interior otic placode, the inboard hub connection of interior otic placode have the side guard plate, the side guard plate and well head sleeve pipe inner wall between screwed connection have clamping spring.
Preferably, the conveniently-installed fine adjustment pipe assembly comprises a containing pipe, an adjusting pipe, an L-shaped hook, a universal ball and a handheld grab handle, wherein the adjusting pipe is in threaded connection with the lower side position inside the containing pipe; the universal ball is welded at the top end of the L-shaped hook; the universal ball is movably embedded in the lower side position inside the adjusting pipe; the handheld grab handle screw is connected to the upper end of the containing pipe.
Preferably, the side guard plate and the side guard plate are arranged in a downward trumpet-shaped opening manner.
Preferably, the intersection of the accommodating pipe and the adjusting pipe is in threaded connection with a positioning bolt.
Preferably, the L-shaped hook and the fine-tuning ear plate are mutually hooked.
Preferably, the first upper flange and the second upper flange are connected with each other through bolts.
Preferably, the inner right sides of the outer convex arc-shaped blocking seat and the inner concave arc-shaped blocking seat are mutually clamped and matched.
Compared with the prior art, the invention has the beneficial effects that:
when the oil extraction wellhead blowout preventer convenient to install is used, the hoisting lug plate is hooked by external hoisting equipment to hoist the oil extraction wellhead blowout preventer and sleeved on a wellhead pipe needing plugging blowout prevention, and in the process, the wellhead pipe penetrates through the lower part of the pressing base, penetrates through the inside of a wellhead casing and is clamped between the inner sides of the side guard plates;
the adjusting handle is twisted clockwise to drive the jacking screw rod to rotate, so that the left side anti-spraying disc and the right side anti-spraying disc are pushed inwards, the oil pipe is lifted and cut under the action of the inward concave arc-shaped blocking seat, the first cutting edge face, the second cutting edge face and the outward convex arc-shaped blocking seat, and then the jacking hydraulic rod and the secondary plugging disc are controlled to descend, so that the top part of the jacking hydraulic rod is plugged;
and finally, the base is fixed by the bolt, and in the hoisting process, the shaking direction of the base is finely adjusted by holding the handheld grab handle, so that the convenience and the flexibility of installation are improved.
The invention has the advantages of simple assembly and disassembly, easy operation, good plugging and blowout prevention effect, and utilization, popularization and application.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a partial sectional structural view of the present invention.
Fig. 3 is a schematic structural view of the left side blowout preventer disk of the present invention.
Fig. 4 is a schematic structural view of the right side blowout preventer disk of the present invention.
FIG. 5 is a cross-sectional structural schematic of a wellhead casing of the present invention.
Fig. 6 is a schematic view of the construction of the ready-to-install trim tube assembly of the present invention.
In the figure:
1. pressing and holding the base; 2. a protective frame; 3. trimming the ear plate; 4. a wellhead casing; 41. an inner ear plate; 42. a side guard plate; 43. a clamping spring; 5. a lateral anti-blocking cylinder; 6. tightly pushing the screw; 7. an adjusting handle; 8. the fine adjustment pipe assembly is convenient to install; 81. receiving a tube; 82. an adjusting tube; 83. an L-shaped hook; 84. a universal ball; 85. a hand-held grip; 9. a side flange seat; 10. a supporting seat; 11. a support bar; 12. locking the nut; 13. an upper plugging cylinder; 14. an upper flange I; 15. an upper flange II; 16. plugging the compaction cylinder; 17. hoisting the lug plate; 18. locking the bolt; 19. protecting a cylinder of the hydraulic cylinder; 20. a protective seat; 21. an oil inlet connecting pipe of a hydraulic oil pipe; 22. a hydraulic oil pipe oil outlet connecting pipe; 23. a blowout prevention clamping cylinder; 24. tightly pushing the hydraulic rod; 25. secondary plugging discs; 26. a left side anti-spray disk; 261. an inward concave arc-shaped blocking seat; 262. cutting the first edge face; 27. a right side anti-spray disk; 271. cutting a second blade face; 272. and the convex arc-shaped blocking seat.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
example (b):
as shown in the attached drawings 1 to 2, the invention provides an oil extraction wellhead blowout preventer convenient to mount, which comprises a pressing base 1, a protective frame 2, a fine adjustment lug plate 3, a wellhead casing 4, a lateral anti-blocking barrel 5, a tightening screw 6, an adjusting handle 7, a conveniently-mounted fine adjustment pipe assembly 8, a lateral flange seat 9, a supporting seat 10, a supporting rod 11, a locking nut 12, an upper blocking barrel 13, a first upper flange 14, a second upper flange 15, a blocking compaction barrel 16, a hoisting lug plate 17, a locking bolt 18, a hydraulic cylinder protective barrel 19, a protective seat 20, a hydraulic oil pipe oil inlet connecting pipe 21, a hydraulic oil pipe oil outlet 22, a blowout prevention clamping barrel connecting pipe 23, a tightening hydraulic rod 24, a secondary blocking disk 25, a left blowout prevention disk 26 and a right blowout prevention disk 27,
the protective frame 2 is connected to the middle position of the upper part of the pressing base 1 through a bolt; the fine adjustment ear plates 3 are respectively bolted at the left side and the right side of the upper part of the pressing base 1; one end of the wellhead casing 4 penetrates through the middle position inside the protective frame 2 and is welded with the inside of the pressing base 1, and the other end of the wellhead casing is connected with the middle position of the lower part of the blowout prevention clamping barrel 23 through a bolt; the lateral anti-blocking barrel 5 is respectively bolted at the middle positions of the left side and the right side of the anti-spraying clamping barrel 23 and is communicated with the inside of the anti-spraying clamping barrel; the jacking screw rod 6 is movably embedded in the middle position inside the lateral anti-blocking barrel 5 and is clamped with the middle positions outside the left anti-spraying disc 26 and the right anti-spraying disc 27; the adjusting handle 7 is in threaded connection with the outer side of the tightening screw 6; the conveniently-installed fine adjustment pipe assembly 8 is connected with the fine adjustment lug plate 3; the side flange seats 9 are respectively in threaded connection with the left side and the right side of the blowout-preventing clamping barrel 23 and cover the outer side of the lateral anti-blocking barrel 5; the supporting seat 10 is welded at the outer side position of the lateral anti-blocking barrel 5; the support rod 11 is transversely screwed between the side flange seat 9 and the support seat 10; the locking nut 12 is in threaded connection with the outer surface of the support rod 11 and is clamped on the outer side of the support seat 10; the upper plugging cylinder 13 is welded at the middle position of the upper part of the blowout prevention clamping cylinder 23 and is communicated with the interior of the blowout prevention clamping cylinder; the upper flange I14 is welded on the upper part of the upper plugging cylinder 13; the upper flange II 15 is welded at the lower part of the plugging compaction cylinder 16; the hoisting ear plates 17 are respectively bolted at the upper positions of the left side and the right side of the plugging compaction cylinder 16;
the locking bolt 18 is in threaded connection with the upper part of the outer side of the plugging compaction barrel 16; the hydraulic cylinder protecting cylinder 19 is connected with the middle position of the upper part of the plugging compaction cylinder 16 through a bolt; the protective seat 20 is connected to the top of the hydraulic cylinder protective cylinder 19 through bolts; the oil inlet connecting pipe 21 of the hydraulic oil pipe is connected to the right side of the upper part of the protective seat 20 in a threaded manner and is embedded with the jacking hydraulic rod 24; the oil outlet connecting pipe 22 of the hydraulic oil pipe is connected to the left side of the upper part of the protective seat 20 in a threaded manner and is embedded with the jacking hydraulic rod 24;
the jacking hydraulic rod 24 is arranged inside the plugging compaction cylinder 16 and is connected to the top of the inner side of the hydraulic cylinder protecting cylinder 19 through bolts; the secondary plugging disc 25 is connected with the output end of the jacking hydraulic rod 24 through a bolt; the left blowout preventer 26 and the right blowout preventer 27 are respectively arranged at the left and right sides of the interior of the blowout preventer clamping cylinder 23.
As shown in fig. 3, in the above embodiment, in particular, the upper portion of the left blowout preventing disk 26 is die-cast with an inwardly concave arc-shaped blocking seat 261; a first cutting edge surface 262 is arranged on the right side of the left anti-spraying disc 26 in a polished mode; the concave arc-shaped blocking seat 261 is arranged in an arc shape; the right side edge of the concave arc-shaped blocking seat 261 is arranged in a blade shape.
As shown in fig. 4, in the above embodiment, specifically, the upper portion of the left side of the right blowout preventing plate 27 is provided with an outer convex arc-shaped blocking seat 272; the left side of the lower part of the right side blowout prevention disk 27 is provided with a second cutting edge surface 271; the convex arc-shaped blocking seat 272 is arranged in a convex arc shape.
In the above embodiment, as shown in fig. 5, specifically, an inner ear plate 41 is screwed to a middle position of an inner wall of the wellhead casing 4, a side guard plate 42 is coupled to an inner side of the inner ear plate 41, and a clamping spring 43 is screwed between the side guard plate 42 and the inner wall of the wellhead casing 4.
As shown in fig. 6, in the above embodiment, specifically, the easily-installed fine adjustment tube assembly 8 includes a receiving tube 81, an adjusting tube 82, an L-shaped hook 83, a universal ball 84 and a handheld grip 85, wherein the adjusting tube 82 is screwed at the inner lower side position of the receiving tube 81; the universal ball 84 is welded at the top end of the L-shaped hook 83; the universal ball 84 is movably embedded in the lower side position inside the adjusting pipe 82; the hand-held grip 85 is screwed to the upper end of the storage tube 81.
In the above embodiment, specifically, the side guard plate 42 and the side guard plate 42 are arranged with a downward trumpet-shaped opening therebetween.
In the above embodiment, specifically, the intersection of the accommodating tube 81 and the adjusting tube 82 is connected with a positioning bolt through a thread; the L-shaped hook 83 is connected with the fine tuning ear plate 3.
In the above embodiment, specifically, the first upper flange 14 and the second upper flange 15 are connected to each other by bolts; the right sides of the inner parts of the outer convex arc-shaped blocking seat 272 and the inner concave arc-shaped blocking seat 261 are mutually clamped and engaged.
Principle of operation
When the device is used, the lifting lug plate 17 is hooked by external lifting equipment to lift the device and is sleeved on a wellhead pipe needing to be blocked and sprayed, and in the process, the wellhead pipe penetrates through the lower part of the pressing base 1, penetrates through the inside of a wellhead casing 4 and is clamped between the inner sides of the side guard plates 42;
the adjusting handle 7 is screwed clockwise to drive the jacking screw 6 to rotate, so that the left side anti-spraying disk 26 and the right side anti-spraying disk 27 are pushed inwards, under the action of the inward concave arc-shaped blocking seat 261, the first cutting edge face 262, the second cutting edge face 271 and the outward convex arc-shaped blocking seat 272, the effect of lifting and cutting an oil pipe is achieved, the jacking hydraulic rod 24 and the secondary plugging disk 25 are controlled to descend, and the top of the jacking hydraulic rod is used for plugging the pipe orifice;
and finally, the base 1 is fixed by a bolt, and in the hoisting process, the shaking direction of the base 1 is finely adjusted by holding the handheld grab handle 85, so that the convenience and the flexibility of installation are improved.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The oil extraction wellhead blowout preventer convenient to install is characterized by comprising a pressing base (1), a protective frame (2), a fine-adjustment lug plate (3), a wellhead casing (4), a lateral anti-blocking barrel (5), a jacking screw rod (6), an adjusting handle (7), a conveniently-installed fine-adjustment pipe assembly (8), a lateral flange seat (9), a supporting seat (10), a supporting rod (11), a locking nut (12), an upper plugging barrel (13), an upper flange I (14), an upper flange II (15), a plugging compaction barrel (16), a hoisting lug plate (17), a locking bolt (18), a hydraulic cylinder protective barrel (19), a protective seat (20), a hydraulic oil pipe oil inlet connecting pipe (21), a hydraulic oil pipe outlet connecting pipe (22), a clamping barrel (23), a jacking hydraulic rod (24) and a secondary plugging disc (25), a left side spray-proof plate (26) and a right side spray-proof plate (27);
the protective frame (2) is connected to the middle position of the upper part of the pressing base (1) through a bolt; the fine adjustment ear plates (3) are respectively bolted at the left side and the right side of the upper part of the pressing base (1); one end of the wellhead casing (4) penetrates through the middle position inside the protective frame (2) and is welded with the inside of the pressing base (1), and the other end of the wellhead casing is connected with the middle position of the lower part of the blowout prevention clamping barrel (23) through a bolt; the lateral anti-blocking barrel (5) is respectively bolted at the middle positions of the left side and the right side of the anti-spraying clamping barrel (23) and communicated with the inside of the anti-spraying clamping barrel; the jacking screw rod (6) is movably embedded in the middle position inside the lateral anti-blocking barrel (5) and is clamped with the middle positions outside the left anti-spraying disc (26) and the right anti-spraying disc (27); the adjusting handle (7) is in threaded connection with the outer side of the tightening screw rod (6); the conveniently-installed fine adjustment pipe assembly (8) is connected with the fine adjustment ear plate (3); the side flange seats (9) are respectively in threaded connection with the left side and the right side of the blowout-preventing clamping barrel (23) and cover the outer side of the lateral anti-blocking barrel (5); the supporting seat (10) is welded at the outer side position of the lateral anti-blocking cylinder (5); the support rod (11) is transversely screwed between the side flange seat (9) and the support seat (10); the locking nut (12) is in threaded connection with the outer surface of the supporting rod (11) and clamped on the outer side of the supporting seat (10); the upper plugging cylinder (13) is welded at the middle position of the upper part of the blowout prevention clamping cylinder (23) and is communicated with the interior of the blowout prevention clamping cylinder; the upper flange I (14) is welded on the upper part of the upper plugging cylinder (13); the upper flange II (15) is welded at the lower part of the plugging compaction cylinder (16); the hoisting ear plates (17) are respectively bolted at the upper positions of the left side and the right side of the plugging compaction cylinder (16);
the locking bolt (18) is in threaded connection with the upper part of the outer side of the plugging compaction barrel (16); the hydraulic cylinder protecting cylinder (19) is connected to the middle position of the upper part of the plugging compaction cylinder (16) through a bolt; the protective seat (20) is connected to the top of the hydraulic cylinder protective cylinder (19) through bolts; the oil inlet connecting pipe (21) of the hydraulic oil pipe is connected to the right side of the upper part of the protective seat (20) in a threaded manner and is embedded with the jacking hydraulic rod (24); the oil outlet connecting pipe (22) of the hydraulic oil pipe is connected to the left side of the upper part of the protective seat (20) in a threaded manner and is embedded with the jacking hydraulic rod (24);
the jacking hydraulic rod (24) is arranged inside the plugging compaction cylinder (16) and is connected to the top of the inner side of the hydraulic cylinder casing (19) through a bolt; the secondary plugging disc (25) is connected to the output end of the jacking hydraulic rod (24) through a bolt; the left side anti-spraying plate (26) and the right side anti-spraying plate (27) are respectively arranged at the left side and the right side of the inner part of the anti-spraying clamping cylinder (23).
2. The easy-to-install blowout preventer of a production wellhead according to claim 1, wherein the upper portion of the left blowout preventer disk (26) is die-cast with an inwardly concave arc-shaped blocking seat (261); a first cutting edge surface (262) is arranged on the right side of the left anti-spraying disc (26) in a polished mode; the concave arc-shaped blocking seat (261) is arranged in an arc shape; the right side edge of the concave arc-shaped blocking seat (261) is arranged in a knife edge shape.
3. The easy-to-install blowout preventer of an oil recovery wellhead according to claim 1, wherein the right blowout preventer disk (27) is provided at the upper left with an outwardly convex arc-shaped blocking seat (272); a second cutting edge surface (271) is arranged on the left side of the lower part of the right anti-spraying disc (27); the convex arc-shaped blocking seat (272) is arranged in a convex arc shape.
4. An easy-to-install blowout preventer according to claim 1, wherein the inner wall of the wellhead casing (4) is screwed with an inner ear plate (41) at a middle position, a side guard (42) is coupled to the inner side of the inner ear plate (41), and a clamping spring (43) is screwed between the side guard (42) and the inner wall of the wellhead casing (4).
5. The easy-to-install blowout preventer according to claim 1, wherein the easy-to-install trim pipe assembly (8) comprises a receiving pipe (81), an adjusting pipe (82), an L-shaped hook (83), a universal ball (84) and a handheld grip (85), wherein the adjusting pipe (82) is screwed at an inner lower position of the receiving pipe (81); the universal ball (84) is welded at the top end of the L-shaped hook (83); the universal ball (84) is movably embedded in the lower side position inside the adjusting pipe (82); the handheld grab handle (85) is connected to the upper end of the containing pipe (81) through a screw.
6. The easy-to-install wellhead blowout preventer of claim 4, wherein the skirt (42) and the skirt (42) are flared downwardly between them.
7. An easy to install wellhead blowout preventer according to claim 5, wherein the intersection of the receiving pipe (81) and the adjusting pipe (82) is threadedly connected with a positioning bolt.
8. An easy-to-install blowout preventer according to claim 5, wherein the L-shaped hook (83) is hooked to the trim ear (3).
9. An easy to install wellhead blowout preventer according to claim 1, wherein the first upper flange (14) and the second upper flange (15) are bolted to each other.
10. An easy to install wellhead blowout preventer according to any of claims 2 and 3, wherein the right internal sides of the convex arcuate barrier seat (272) and the concave arcuate barrier seat (261) snap into engagement with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210219147.4A CN114856481B (en) | 2022-03-08 | 2022-03-08 | Oil recovery well head blowout preventer convenient to installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210219147.4A CN114856481B (en) | 2022-03-08 | 2022-03-08 | Oil recovery well head blowout preventer convenient to installation |
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| CN114856481B CN114856481B (en) | 2023-09-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117266785A (en) * | 2023-11-17 | 2023-12-22 | 江苏苏盐阀门机械有限公司 | Blowout preventer for wellhead |
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| CN112177540A (en) * | 2020-08-19 | 2021-01-05 | 北京捷杰西石油设备有限公司 | Automatic drilling rod blowout-prevention button cleaning machine |
| CN214171003U (en) * | 2020-12-31 | 2021-09-10 | 江苏翔力重工科技有限公司 | Bidirectional hydraulic oil cylinder |
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| US6223819B1 (en) * | 1999-07-13 | 2001-05-01 | Double-E Inc. | Wellhead for providing structure when utilizing a well pumping system |
| CN105089542A (en) * | 2014-05-09 | 2015-11-25 | 中国石油化工股份有限公司 | Hydraulic self-locking quick-mounting blowout prevention device and method |
| RU167756U1 (en) * | 2016-03-03 | 2017-01-10 | Закрытое акционерное общество "Научно-производственное предприятие "Сибтехноцентр" | HYDRAULIC DOUBLE PRE-PRESSOR WITH TECHNOLOGICAL CONE |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117266785A (en) * | 2023-11-17 | 2023-12-22 | 江苏苏盐阀门机械有限公司 | Blowout preventer for wellhead |
| CN117266785B (en) * | 2023-11-17 | 2024-02-20 | 江苏苏盐阀门机械有限公司 | Blowout preventer for wellhead |
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| CN114856481B (en) | 2023-09-08 |
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