Hydraulic swabbing blowout preventer

Abstract

The utility model discloses a hydraulic swabbing blowout preventer which is characterized in that a first blowout prevention assembly used for preventing blowout of a core seat is arranged in a first supporting assembly, a first driving assembly used for driving the first blowout prevention assembly to move left and right is arranged on the side, away from the core seat, of the first blowout prevention assembly, and a second blowout prevention assembly used for preventing blowout of the core seat is arranged in a second supporting assembly. A second driving assembly used for driving the second blowout prevention assembly to move left and right is arranged on the side, away from the core base, of the second blowout prevention assembly. When a swabbing accident occurs in an oil well, a first limiting plate on a first moving rod is controlled by a hydraulic valve to move in a first circular groove, meanwhile, first baffles are buffered through the elastic effect of a first spring, the two first baffles can be controlled to seal an oil port of a core seat, meanwhile, the hydraulic valve controls a second limiting plate on a second moving rod to move in a second circular groove, and therefore the oil port of the core seat is sealed. And meanwhile, the elastic effect of the second spring is used for buffering the second baffles, so that the two second baffles can be controlled to seal the oil port of the core seat.

Description

Technical Field

[0001] This utility model relates to the field of blowout preventer technology, specifically to a hydraulic pumping blowout preventer. Background Technology

[0002] During oilfield pumping operations, fluid in the well is pumped up and down by the pump and discharged into a metering tank for oil testing data recording. A blowout preventer (BOP) installed at the wellhead is an essential component in these operations. For example, in a hydraulic pumping BOP device disclosed in Chinese Publication No. CN220522533U, a first rubber core is blocked by an outer cylinder in a direction away from the second rubber core. A drive piston is slidably sealed inside the outer cylinder. The drive piston is equipped with a hydraulic circuit that drives its axial movement relative to the outer cylinder. An axial pressure component is connected to the drive piston, pushing the end of the second rubber core away from the first rubber core towards the first rubber core. As the piston moves towards the first rubber core, the axial pressure component sequentially compresses the second rubber core, the pressure transmission component, and the first rubber core, causing the first and second rubber cores to radially contract and deform, tightly gripping the wire rope.

[0003] However, when using core rubber to prevent blowout in oil wells, the deformation of the rubber core is used to block the core seat. When the fluid flows through the core seat, the rubber core will deform synchronously, which will cause the fluid to flow out of the core seat. Utility Model Content

[0004] Therefore, this utility model provides a hydraulic pumping blowout preventer to solve the problem in the prior art where the blockage of the core seat is achieved by simply deforming the rubber core, which causes the rubber core to deform synchronously when the fluid flows in the core seat, resulting in the fluid flowing out of the core seat.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A hydraulic pumping blowout preventer includes a core seat connected to an oil well. Blowout preventer devices 1 for preventing blowouts are provided at both ends of the core seat, and blowout preventer device 2 for preventing blowouts of the core seat is provided below the blowout preventer device 1.

[0007] The blowout preventer includes a support assembly 1 disposed at the left and right ends of the core seat. The support assembly 1 contains a blowout preventer 1 for preventing blowouts from the core seat. The side of the blowout preventer 1 away from the core seat is provided with a drive assembly 1 for driving the blowout preventer 1 to move left and right.

[0008] The second anti-blowout device includes a second support component disposed at the left and right ends of the core seat. The second support component is provided with an anti-blowout component for preventing the core seat from being blown out. The side of the anti-blowout component away from the core seat is provided with a second drive component for driving the anti-blowout component to move left and right.

[0009] Furthermore, the support component 1 includes a blowout preventer 1 fixedly installed at both ends of the core seat. The blowout preventer 1 has a circular groove 1 for restricting the blowout preventer 1 inside. The circular groove 1 has a trapezoidal groove 1 for restricting the drive component 1 on the side away from the core seat. The trapezoidal groove 1 has a stepped groove 1 for restricting the drive component 1 on the left side.

[0010] Furthermore, the drive assembly includes a connecting rod fixedly installed on the side of the blowout preventer assembly away from the core seat. A movable rod is fixedly installed on the side of the connecting rod away from the blowout preventer assembly. A spring is fitted on the body of the movable rod, and a limiting plate is fixedly installed on the body of the movable rod.

[0011] Furthermore, the blowout preventer assembly includes a limiting ring fixedly installed at one end of the connecting rod away from the limiting plate, a round rod fixedly installed at one end of the limiting ring away from the connecting rod, and a baffle for blocking the core seat fixedly installed at one end of the round rod away from the limiting ring.

[0012] Furthermore, the second support component includes a second blowout preventer fixedly installed at the left and right ends of the core seat. The second blowout preventer has a circular groove for restricting the second blowout preventer. The side of the circular groove away from the core seat has a trapezoidal groove for restricting the second drive component. The left side of the trapezoidal groove has a stepped groove for restricting the second drive component.

[0013] Furthermore, the second drive assembly includes a second connecting rod fixedly installed on the side of the second blowout preventer assembly away from the core seat, a second movable rod fixedly installed on the side of the second connecting rod away from the second blowout preventer assembly, a second spring fitted on the body of the second movable rod, and a second limiting plate fixedly installed on the body of the second movable rod.

[0014] Furthermore, the second anti-spray assembly includes a second limiting ring fixedly installed at one end of the second connecting rod away from the second limiting plate, a second round rod fixedly installed at one end of the second limiting ring away from the second connecting rod, and a second baffle for blocking the core seat fixedly installed at one end of the second round rod away from the second limiting ring.

[0015] Furthermore, an oil pipe is provided at the top of the core seat, and a connecting pipe is provided at the bottom of the core seat.

[0016] This utility model has the following advantages:

[0017] By setting up blowout preventer one and blowout preventer two, when a pumping accident occurs in the oil well, the hydraulic valve controls the movement of the limiting plate one on the moving rod one within the circular groove one. At the same time, the elasticity of the spring one buffers the baffle one, thus controlling the two baffles to seal the oil port of the core seat. Simultaneously, the hydraulic valve controls the movement of the limiting plate two on the moving rod two within the circular groove two. At the same time, the elasticity of the spring two buffers the baffle two, thus controlling the two baffles to seal the oil port of the core seat. Attached Figure Description

[0018] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0019] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the core base of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of support component one and support component two of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the first and second anti-blowout devices of this utility model.

[0024] The following is a list of component names represented by the reference numerals in the attached figures:

[0025] 100-Core seat, 101-Oil pipe, 102-Connecting pipe;

[0026] 200-Blowout preventer, 210-Support assembly, 211-Blowout preventer cylinder, 212-Circular groove, 213-Trapezoidal groove, 214-Stepped groove, 220-Drive assembly, 221-Connecting rod, 222-Moving rod, 223-Spring, 224-Limiting plate, 230-Blowout preventer assembly, 231-Baffle, 232-Circular rod, 233-Limiting ring;

[0027] 300-Blowout preventer II, 310-Support assembly II, 311-Blowout preventer cylinder II, 312-Circular groove II, 313-Trapezoidal groove II, 314-Stepped groove II, 320-Drive assembly II, 321-Connecting rod II, 322-Moving rod II, 323-Spring II, 324-Limiting plate II, 330-Blowout preventer assembly II, 331-Baffle II, 332-Circular rod II, 333-Limiting ring II. Detailed Implementation

[0028] The following detailed description illustrates the embodiments of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, what is described is only a part of this utility model, not all of it. All other inventions based on this utility model that are obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0029] Please see Figures 1-4 This utility model provides a hydraulic pumping blowout preventer.

[0030] It includes a core seat 100 connected to an oil well, and blowout preventer 200 for preventing blowout at both ends of the core seat 100. Blowout preventer 300 for preventing blowout at the bottom of the blowout preventer 200 is also provided.

[0031] The top of the core seat 100 is provided with an oil pipe 101, which is connected to an oil well. The bottom of the core seat 100 is provided with a connecting pipe 102. The core seat 100 has a square groove for placing the blowout preventer assembly 230 and the blowout preventer assembly 330.

[0032] The blowout preventer 200 includes a support assembly 210 disposed at the left and right ends of the core base 100. The support assembly 210 is provided with a blowout preventer assembly 230 for preventing blowouts from the core base 100. A drive assembly 220 for driving the blowout preventer assembly 230 to move left and right is disposed on the side of the blowout preventer assembly 230 away from the core base 100.

[0033] The support assembly 210 includes a blowout preventer 211 fixedly installed at the left and right ends of the core base 100, and the blowout preventer 211 is fixed to the left and right ends of the core base 100 by bolts; the blowout preventer 211 has a circular groove 212 for restricting the blowout preventer assembly 230, and a trapezoidal groove 213 for restricting the drive assembly 220 is provided on the side of the circular groove 212 away from the core base 100, and a stepped groove 214 for restricting the drive assembly 220 is provided on the left side of the trapezoidal groove 213.

[0034] The drive assembly 220 includes a connecting rod 221 fixedly installed on the side of the blowout preventer assembly 230 away from the core seat 100, and the connecting rod 221 passes through the core seat 100 and the blowout preventer cylinder 211. A movable rod 222 is fixedly installed on the side of the connecting rod 221 away from the blowout preventer assembly 230, and the movable rod 222 can move within the stepped groove 214. The end of the movable rod 222 away from the connecting rod 221 is connected to a hydraulic valve, so that the movable rod 222 can be controlled to move towards the core seat 100 through the hydraulic valve, thereby controlling the two blowout preventers 230 to move closer to each other and seal the core seat 100 to prevent oil well from spraying. A spring 223 is fitted on the rod of the movable rod 222, and the elasticity of the spring 223 is used to buffer the blowout preventer assembly 230, thereby fixing a limiting plate 224 on the rod of the movable rod 222.

[0035] The blowout preventer assembly 230 includes a limiting ring 233 fixedly installed at the end of the connecting rod 221 away from the limiting plate 224, a round rod 232 fixedly installed at the end of the limiting ring 233 away from the connecting rod 221, and a baffle 231 for blocking the core seat 100 fixedly installed at the end of the round rod 232 away from the limiting ring 233.

[0036] The second blowout preventer 300 includes a second support group 310 disposed at both ends of the core seat 100, and the second support group 310 is located directly below the first support component 210. The second support group 310 is provided with a second blowout preventer component 330 for preventing blowouts from the core seat 100. The side of the second blowout preventer component 330 away from the core seat 100 is provided with a second drive component 320 for driving the second blowout preventer component 330 to move left and right.

[0037] The second support assembly 310 includes a second blowout preventer 311 fixedly installed at the left and right ends of the core base 100, and the second blowout preventer 311 is fixed to the left and right ends of the core base 100 by bolts; the second blowout preventer 311 has a circular groove 312 for restricting the second blowout preventer assembly 330, and a trapezoidal groove 313 for restricting the second drive assembly 320 is opened on the side of the circular groove 312 away from the core base 100, and a stepped groove 314 for restricting the second drive assembly 320 is opened on the left side of the trapezoidal groove 313.

[0038] The second drive assembly 320 includes a second connecting rod 321 fixedly installed on the side of the second blowout preventer assembly 330 away from the core seat 100, and the second connecting rod 321 passes through the core seat 100 and the second blowout preventer cylinder 311. A second movable rod 322 is fixedly installed on the side of the second connecting rod 321 away from the second blowout preventer assembly 330, and the second movable rod 322 can move within the second stepped groove 314. The end of the second movable rod 322 away from the second connecting rod 321 is connected to a hydraulic valve so that the second movable rod 322 can be controlled to move towards the core seat 100 through the hydraulic valve, thereby controlling the two blowout preventers 330 to move closer to each other and seal the core seat 100 to prevent the oil well from spraying. A second spring 323 is fitted on the body of the second movable rod 322, and a second limiting plate 324 is fixedly installed on the body of the second movable rod 322.

[0039] The blowout preventer assembly 330 includes a limiting ring 333 fixedly installed at the end of the connecting rod 321 away from the limiting plate 324. A round rod 332 is fixedly installed at the end of the limiting ring 333 away from the connecting rod 321. A baffle 331 for blocking the core seat 100 is fixedly installed at the end of the round rod 332 away from the limiting ring 333. The baffle 331 has a semi-circular hole to facilitate buffering of fluid in the oil well. Thus, when a pumping accident occurs in the oil well, the system is controlled by a hydraulic valve. The limiting plate 232 on the moving rod 221 moves within the circular groove 212, while the elasticity of the spring 223 buffers the baffle 231, thus controlling the two baffles 231 to seal the oil port of the core seat 100. At the same time, the hydraulic valve controls the limiting plate 332 on the moving rod 321 to move within the circular groove 312, while the elasticity of the spring 323 buffers the baffle 331, thus controlling the two baffles 331 to seal the oil port of the core seat 100.

[0040] Although the present invention has been described in detail above with general and specific descriptions, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A hydraulic draw-works blowout preventer comprising a base (100) connected to an oil well, characterized in that: The left and right ends of the core seat (100) are provided with anti-spray devices one (200) for preventing the core seat (100) from being sprayed, and the lower side of the anti-spray device one (200) is provided with anti-spray devices two (300) for preventing the core seat (100) from being sprayed; The anti-spray device one (200) comprises a support assembly one (210) arranged at the left and right ends of the core seat (100), and an anti-spray assembly one (230) arranged in the support assembly one (210) for preventing the core seat (100) from being sprayed, and a driving assembly one (220) arranged on the side of the anti-spray assembly one (230) away from the core seat (100) for driving the anti-spray assembly one (230) to move left and right. The anti-spray device two (300) comprises a support assembly two (310) arranged at the left and right ends of the core seat (100), and an anti-spray assembly two (330) arranged in the support assembly two (310) for preventing the core seat (100) from being sprayed, and a driving assembly two (320) arranged on the side of the anti-spray assembly two (330) away from the core seat (100) for driving the anti-spray assembly two (330) to move left and right.

2. A hydraulic swivel preventer according to claim 1, wherein: The support assembly one (210) comprises an anti-spray cylinder one (211) fixedly installed at the left and right ends of the core seat (100), a circular groove one (212) formed in the anti-spray cylinder one (211) for limiting the anti-spray assembly one (230), a trapezoidal groove one (213) formed on the side of the circular groove one (212) away from the core seat (100) for limiting the driving assembly one (220), and a stepped groove one (214) formed on the left side of the trapezoidal groove one (213) for limiting the driving assembly one (220).

3. A hydraulic swivel preventer as defined in claim 2, wherein: The driving assembly one (220) comprises a connecting rod one (221) fixedly installed on the side of the anti-spray assembly one (230) away from the core seat (100), a moving rod one (222) fixedly installed on the side of the connecting rod one (221) away from the anti-spray assembly one (230), a spring one (223) sleeved on the rod body of the moving rod one (222), and a limiting plate one (224) fixedly installed on the rod body of the moving rod one (222).

4. A hydraulic swivel preventer as defined in claim 3, wherein: The anti-spray assembly one (230) comprises a limiting ring one (233) fixedly installed on one end of the connecting rod one (221) away from the limiting plate one (224), a circular rod one (232) fixedly installed on the end of the limiting ring one (233) away from the connecting rod one (221), and a baffle one (231) fixedly installed on the end of the circular rod one (232) away from the limiting ring one (233) for plugging the core seat (100).

5. A hydraulic swivel preventer as defined in claim 1, wherein: The support assembly two (310) includes the blowout preventer two (311) fixedly installed at the left and right ends of the core seat (100), a circular groove two (312) is arranged in the blowout preventer two (311) for limiting the blowout assembly two (330), a trapezoidal groove two (313) is arranged on the side, away from the core seat (100), of the circular groove two (312) for limiting the drive assembly two (320), and a ladder groove two (314) is arranged on the left side of the trapezoidal groove two (313) for limiting the drive assembly two (320).

6. A hydraulic swivel preventer as defined in claim 5, wherein: The drive assembly two (320) includes the connecting rod two (321) fixedly installed on the side, away from the core seat (100), of the blowout assembly two (330), the moving rod two (322) is fixedly installed on the side, away from the blowout assembly two (330), of the connecting rod two (321), the spring two (323) is sleeved on the rod body of the moving rod two (322), and the limiting plate two (324) is fixedly installed on the rod body of the moving rod two (322).

7. A hydraulic swivel preventer as defined in claim 6 wherein: The blowout assembly two (330) includes the limiting ring two (333) fixedly installed on the end, away from the limiting plate two (324), of the connecting rod two (321), the circular rod two (332) is fixedly installed on the end, away from the connecting rod two (321), of the limiting ring two (333), and the baffle two (331) for plugging the core seat (100) is fixedly installed on the end, away from the limiting ring two (333), of the circular rod two (332).

8. A hydraulic swivel preventer as defined in claim 1, wherein: The top end of the core seat (100) is provided with the oil pipe (101), and the bottom end of the core seat (100) is provided with the connecting pipe (102).

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