Downhole operation blowout preventer for oil-gas field development

Abstract

The utility model relates to the technical field of blowout preventers, in particular to a downhole operation blowout preventer for oil-gas field development, which comprises a valve body, a valve plate and a control component. The control assembly comprises a shell, a connecting rod, a moving plate, a rotating plate and a driving component, the shell is fixedly connected with the valve body, the connecting rod is fixedly connected with the valve plate, the moving plate is fixedly connected with the connecting rod, the rotating plate is rotatably connected with the moving plate, and the driving component is arranged on the shell. At the moment, the rotating plate pushes the two moving plates to be far away from each other, then the two moving plates drive the two connecting rods to move, the two valve plates are driven to move, the two valve plates are contained in the containing grooves, the valve body is opened at the moment, the purpose of synchronously driving the two valve plates to move is achieved, operation is convenient, and meanwhile the two valve plates are synchronously opened or closed.

Description

Technical Field

[0001] The utility model relates to the technical field of blowout preventers, in particular to a downhole operation blowout preventer for oil and gas field development. Background Art

[0002] In oil and gas extraction, downhole operation blowout preventers are required. Traditional blowout preventers are cumbersome to operate, cannot be quickly closed in a short time, and are prone to oil and gas ejection.

[0003] The prior art CN212563154U discloses a downhole operation blowout preventer for oil and gas field development, including a valve body. A flow hole is vertically penetrated through the center of the top surface of the valve body, and a liquid inlet pipe is fixedly connected to the center of the bottom surface of the valve body and located at the bottom of the flow hole. A first flange is fixedly connected to the bottom of the liquid inlet pipe. By using the cooperation of a storage groove, a sealing plate, a positioning frame, an inlet and outlet hole, a sealing rubber plate, a pull plate, a traction rod, a return spring, a limiting block, a limiting groove, a pull rod, a pull block, a clamping block, an inlet and outlet, a clamping groove and an inlet and outlet slot opening, the blowout preventer can be quickly operated, so that the blowout prevention effect of the blowout preventer is better, and the problem that when the blowout preventer is in use, due to the cumbersome operation steps, it cannot be quickly closed in a short time, easily causing a large amount of oil and gas to eject, resulting in a poor blowout prevention effect of the blowout preventer is solved.

[0004] The above device can quickly close the blowout preventer, but the two sealing plates need to be independently operated, which is not only inconvenient to use, but also cannot open and close the two sealing plates synchronously. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a downhole operation blowout preventer for oil and gas field development, which solves the problem that the two sealing plates of an existing downhole operation blowout preventer for oil and gas field development need to be independently operated, which is not only inconvenient to use, but also cannot open and close the two sealing plates synchronously.

[0006] To achieve the above purpose, the utility model provides a downhole operation blowout preventer for oil and gas field development, including a valve body and a valve plate. The valve plate is slidably installed inside the valve body, and a control component is further included. The control component includes a housing, a connecting rod, a moving plate, a rotating plate and a driving member. The housing is fixedly connected to the valve body, slidably connected to the valve body and arranged on the valve body. The connecting rod is fixedly connected to the valve plate and located on one side of the valve plate. The moving plate is fixedly connected to the connecting rod and located on the side of the connecting rod away from the valve plate. The rotating plate is rotatably connected to the moving plate and located at one end of the moving plate. The driving member is arranged on the housing and drives the rotating plate to move.

[0007] Among them, the control component further includes a first guide rod, which is fixedly connected to the housing, slidably connected to the moving plate, and located inside the housing.

[0008] Among them, the driving member includes a threaded rod, a handwheel, and a threaded seat. The threaded rod is rotatably connected to the housing and located inside the housing; the handwheel is fixedly connected to the threaded rod and located at one end of the threaded rod; the threaded seat is threadedly connected to the threaded rod, rotatably connected to the rotating plate, and sleeved on the threaded rod.

[0009] Among them, the driving member includes a second guide rod, which is fixedly connected to the housing, slidably connected to the threaded seat, and located inside the housing.

[0010] Among them, the valve plate includes a plate body and a gasket. The plate body is slidably connected to the valve body, fixedly connected to the connecting rod, and located inside the valve body; the gasket is fixedly connected to the plate body and located on one side of the plate body close to the connecting rod.

[0011] A blowout preventer for downhole operations in oil and gas field development according to the present utility model, when in use, drives the end of the rotating plate away from the moving plate to approach the valve body through the driving member. At this time, the rotating plate pushes the two moving plates away from each other, and further drives the two connecting rods to move by the two moving plates, thereby driving the two valve plates to move, so that the two valve plates are received in the receiving groove, and at this time the valve body is opened; when closing, drives the end of the rotating plate away from the moving plate to move away from the valve body through the driving rod member. At this time, the rotating plate pulls the two moving plates closer to each other, and further makes the two connecting rods and the two valve plates approach each other, so that the two valve plates can abut against both sides of the drill pipe or the oil pipe, thereby realizing synchronous driving of the two valve plates to move, facilitating operation and enabling the two valve plates to be opened or closed synchronously. Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art.

[0013] Figure 1 It is a schematic diagram of the overall structure of a blowout preventer for downhole operations in oil and gas field development according to the first embodiment of the present utility model.

[0014] Figure 2 It is a schematic diagram of the structure of the control component according to the first embodiment of the present utility model.

[0015] Figure 3 It is a schematic diagram of the installation structure of the gasket according to the second embodiment of the present utility model.

[0016] In the figure: 101 - valve body, 102 - valve plate, 103 - receiving groove, 104 - control component, 105 - housing, 106 - connecting rod, 107 - moving plate, 108 - rotating plate, 109 - driving member, 110 - first guiding rod, 111 - threaded rod, 112 - handwheel, 113 - threaded seat, 114 - second guiding rod, 201 - plate body, 202 - gasket. Specific embodiments

[0017] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0018] First embodiment:

[0019] Please refer to Figure 1 and Figure 2 where Figure 1 is the overall structural schematic diagram of the blowout preventer for downhole operations in oil and gas field development, Figure 2 is the structural schematic diagram of the control component.

[0020] The present invention provides a blowout preventer for downhole operations in oil and gas field development, including a valve body 101, a valve plate 102, and a control component 104. The control component 104 includes a housing 105, a connecting rod 106, a moving plate 107, a rotating plate 108, a driving member 109, and a first guiding rod 110. The driving member 109 includes a threaded rod 111, a handwheel 112, a threaded seat 113, and a second guiding rod 114. The driving member 109 drives the rotating plate 108 to move, so that the rotating plate 108 pushes or pulls the two moving plates 107 to move synchronously, and then drives the two connecting rods 106 and the two valve plates 102 to move synchronously, achieving the purpose of convenient operation. It can be understood that the foregoing solution can be used when conveniently driving the two valve plates 102 to move synchronously, and can also be used to solve the problem when driving the rotating plate 108 to move.

[0021] For this specific embodiment, the valve plate 102 is slidably installed inside the valve body 101. The valve body 101 is provided with a flow hole penetrating the valve body 101. There are two valve plates 102, which are respectively located on the left and right sides of the valve body 101. The valve body 101 is provided with a receiving groove 103, and the valve plate 102 can be received in the receiving groove 103.

[0022] Among them, the outer shell 105 is fixedly connected to the valve body 101, is slidably connected to the valve body 101, and is arranged on the valve body 101. The connecting rod 106 is fixedly connected to the valve plate 102 and is located on one side of the valve plate 102. The moving plate 107 is fixedly connected to the connecting rod 106 and is located on the side of the connecting rod 106 away from the valve plate 102. The rotating plate 108 is rotatably connected to the moving plate 107 and is located at one end of the moving plate 107. The driving member 109 is arranged on the outer shell 105 and drives the rotating plate 108 to move; two of each of the connecting rod 106, the moving plate 107, and the rotating plate 108 are provided. An arc-shaped groove is provided on the valve plate 102 to cooperate with a drill pipe or an oil pipe. During use, the driving member 109 drives the end of the rotating plate 108 away from the moving plate 107 to approach the valve body 101. At this time, the rotating plate 108 pushes the two moving plates 107 away from each other, and further enables the two moving plates 107 to drive the two connecting rods 106 to move, thereby driving the two valve plates 102 to move, so that the two valve plates 102 are received in the receiving groove 103. At this time, the valve body 101 is opened; when closing, the driving rod member drives the end of the rotating plate 108 away from the moving plate 107 to move away from the valve body 101. At this time, the rotating plate 108 pulls the two moving plates 107 closer to each other, and further enables the two connecting rods 106 and the two valve plates 102 to approach each other, so that the two valve plates 102 can abut against both sides of the drill pipe or the oil pipe, thereby realizing synchronous driving of the two valve plates 102 to move, facilitating operation and enabling the two valve plates 102 to be opened or closed synchronously.

[0023] Secondly, the control assembly 104 further includes a first guide rod 110. The first guide rod 110 is fixedly connected to the outer shell 105, is slidably connected to the moving plate 107, and is located inside the outer shell 105; two first guide rods 110 are provided, and the movement of the two moving plates 107 is respectively guided by the two first guide rods 110 to improve the stability of the moving plate 107 during movement.

[0024] At the same time, the threaded rod 111 is rotatably connected to the outer shell 105 and is located inside the outer shell 105; the hand wheel 112 is fixedly connected to the threaded rod 111 and is located at one end of the threaded rod 111; the threaded seat 113 is threadedly connected to the threaded rod 111, is rotatably connected to the rotating plate 108, and is sleeved on the threaded rod 111; the hand wheel 112 facilitates the staff to rotate the threaded rod 111. The rotation of the threaded rod 111 drives the threaded seat 113 to move, so that the threaded seat 113 drives the rotating plate 108 to move, thereby achieving the purpose of driving the rotating plate 108 to move.

[0025] In addition, the second guide rod 114 is fixedly connected to the housing 105, slidably connected to the threaded seat 113, and is located inside the housing 105; the movement of the threaded seat 113 is guided by the second guide rod 114 to improve the stability of the threaded seat 113 during movement.

[0026] When using the downhole blowout preventer in oil and gas field development of this embodiment, by rotating the handwheel 112 to drive the rotation of the threaded rod 111, the threaded rod 111 further drives the movement of the threaded seat 113. The threaded seat 113 drives the movement of the two rotating plates 108, and further drives the two moving plates 107 to approach or move away from each other, so that the two moving plates 107 drive the two connecting rods 106 and the two valve plates 102 to approach or move away from each other, thereby achieving the purpose of synchronously driving the opening or closing of the two valve plates 102.

[0027] Second Embodiment:

[0028] On the basis of the first embodiment, please refer to Figure 3 , Figure 3 , which is a schematic diagram of the installation structure of the gasket in the second embodiment. The valve plate 102 of this embodiment includes a plate body 201 and a gasket 202.

[0029] For this specific embodiment, the plate body 201 is slidably connected to the valve body 101, fixedly connected to the connecting rod 106, and is located inside the valve body 101; the gasket 202 is fixedly connected to the plate body 201 and is located on the side of the plate body 201 close to the connecting rod 106; when the plate body 201 is received in the receiving groove 103, the gasket 202 abuts against the side wall of the receiving groove 103, thereby sealing the receiving groove 103 to prevent oil and gas leakage.

[0030] The above-disclosed are only one or more preferred embodiments of the present application, and the scope of rights of the present application cannot be limited thereby. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.

Claims

1. A blowout preventer for downhole operations in oil and gas field development, comprising a valve body and a valve plate, wherein the valve plate is slidably mounted inside the valve body, and characterized in that: Also included are control components; The control assembly includes a shell, a connecting rod, a movable plate, a rotating plate and a driving member. The shell is fixedly connected to the valve body and slidably connected to the valve body and is arranged on the valve body. The connecting rod is fixedly connected to the valve plate and is located on one side of the valve plate. The movable plate is fixedly connected to the connecting rod and is located on a side of the connecting rod away from the valve plate. The rotating plate is rotatably connected to the movable plate and is located at one end of the movable plate. The driving member is arranged on the shell and drives the rotating plate to move.

2. The blowout preventer for downhole operations in oil and gas field development according to claim 1, characterized in that: The control assembly further comprises a first guide rod, which is fixedly connected to the shell and slidably connected to the movable plate and is located inside the shell.

3. The blowout preventer for downhole operations in oil and gas field development according to claim 1, characterized in that: The driving component includes a threaded rod, a handwheel and a threaded seat. The threaded rod is rotatably connected to the outer shell and is located inside the outer shell; the handwheel is fixedly connected to the threaded rod and is located at one end of the threaded rod; the threaded seat is threadedly connected to the threaded rod, rotatably connected to the rotating plate, and is sleeved on the threaded rod.

4. The blowout preventer for downhole operations in oil and gas field development as claimed in claim 3, characterized in that: The driving component comprises a second guide rod, the second guide rod is fixedly connected to the shell, slidably connected to the threaded seat, and is located inside the shell.

5. The blowout preventer for downhole operations in oil and gas field development according to claim 1, characterized in that: The valve plate includes a plate body and a sealing gasket. The plate body is slidably connected to the valve body and fixedly connected to the connecting rod and is located inside the valve body. The sealing gasket is fixedly connected to the plate body and is located on one side of the plate body close to the connecting rod.

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