Wellhead mud blocking device

Abstract

The utility model relates to the technical field of well mouth mud blocking devices, and provides a well mouth mud blocking device which is arranged at a well mouth and comprises a fixed baffle. The movable baffle is slidably arranged on the fixed baffle; the elastic piece is arranged on the fixed baffle, the movable end of the elastic piece is arranged on the movable baffle, and the elastic piece is used for providing sliding unfolding force for the movable baffle; the locking hook is rotationally arranged on the fixed baffle plate; the locking block is arranged on the movable baffle and connected with the locking hook in a clamped mode, and after the locking hook is disengaged from the locking block, the elastic piece pushes the movable baffle to be unfolded in a sliding mode. By means of the technical scheme, the problem that in the prior art, slurry in a single drill rod detached from a well mouth splashes down along a pipeline and will splash to a drill floor face and the body of a worker is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to wellhead mud blocking device technical field, specifically, relate to a wellhead mud blocking device. BACKGROUND

[0002] With the progress and development of science and technology, the drilling industry has higher and higher requirements for the construction environment of workers, especially the place where the mud splashes most seriously at the wellhead, and workers are often concentrated at the wellhead. When the drill pipe is frequently disassembled and the single drill pipe is disassembled, a large amount of mud is often sprayed from the wellhead, sometimes the mud in the single drill pipe disassembled from the wellhead splashes down along the pipeline, which will splash a large amount of mud on the drilling platform and the workers' bodies, and if the mud is corrosive, it will harm the workers' skin. The traditional method is to use a splash-proof box or workers to make a simple device from a discarded plastic oil drum. Although the amount of mud splashing on the drilling platform is reduced, workers cannot stay away from the wellhead, and mud will still splash on the workers.

[0003] Therefore, a new wellhead mud blocking device is needed to solve the above problems. SUMMARY

[0004] The utility model provides a wellhead mud blocking device, solve the problem that the mud in the single drill pipe disassembled from the wellhead splashes down along the pipeline, which will splash on the drilling platform and the workers' bodies.

[0005] The technical scheme of the utility model is as follows:

[0006] A wellhead mud blocking device is arranged at the wellhead and comprises:

[0007] A fixed baffle;

[0008] A movable baffle is slidably arranged on the fixed baffle;

[0009] An elastic member is arranged on the fixed baffle, the movable end of the elastic member is arranged on the movable baffle, and the elastic member is used to provide the force for the sliding expansion of the movable baffle;

[0010] A locking hook is rotatably arranged on the fixed baffle;

[0011] A locking block is arranged on the movable baffle, the locking block is connected with the locking hook, and when the locking hook and the locking block are disconnected, the elastic member pushes the movable baffle to slide and expand.

[0012] Optionally, the fixed baffle comprises:

[0013] A base;

[0014] Sliding rods, a plurality of which are arranged on the base in intervals;

[0015] First plate bodies, a plurality of which are arranged between adjacent sliding rods.

[0016] Optionally, the movable baffle comprises:

[0017] Guide pipes, a plurality of which are slidably sleeved on the sliding rods;

[0018] Second plate bodies, a plurality of which are arranged between adjacent guide pipes.

[0019] Optionally, at least one of the sliding rods is hollow, the elastic member is a spring rod, one end of the spring rod is arranged in the hollow sliding rod, and the other end of the spring rod is arranged on the top surface of the inner wall of the guide pipe.

[0020] Optionally, the device further comprises:

[0021] Mounting blocks, a plurality of which are arranged on the base in intervals;

[0022] A transmission shaft, which sequentially penetrates the mounting blocks and is rotatably arranged on the mounting blocks; the locking hook is arranged on the base through the transmission shaft; the locking block is arranged on the second plate body, and the locking hook is close to or away from the locking block after the second plate body is slid.

[0023] Optionally, the device further comprises:

[0024] A connecting block, which is arranged on the base;

[0025] A pedal, which is arranged on the other end of the transmission shaft;

[0026] A tension spring, one end of which is arranged on the pedal and the other end of which is arranged on the connecting block, the tension spring being used to provide a force for pressing the locking block by the locking hook.

[0027] Optionally, the device further comprises:

[0028] A linear bearing, which is arranged between the sliding rod and the guide pipe.

[0029] Optionally, the pedal comprises:

[0030] A horizontal rod, the other end of the transmission shaft being arranged on the rod of the horizontal rod, and the tension spring being arranged on one end of the horizontal rod;

[0031] A vertical rod, which is arranged on the other end of the horizontal rod.

[0032] Optionally, the first plate body and the second plate body are arranged in a staggered manner.

[0033] Optionally, the method further comprises:

[0034] The plurality of legs are arranged on the base in a spaced apart manner.

[0035] The working principle and advantages of the utility model are as follows:

[0036] The utility model discloses a well mouth tool before installing a up and down telescopic baffle, the baffle includes fixed baffle and movable baffle, and movable baffle is slidably connected on fixed baffle through the way of sleeve joint, and one end of elastic part is fixed in the bottom of fixed baffle, and the other end is connected the bottom of movable baffle, and locking hook is the hook of one side of fixed baffle, and locking block is the lock of the corresponding position of movable baffle.When the well mouth tool is unloaded, the worker opens locking hook, and the elasticity of elastic part promotes movable baffle to slide along fixed baffle and expand upwards, and the well mouth position is blocked, and the mud splashing is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0037] The above-mentioned features, technical features, advantages and implementation modes of the utility model will be further explained in the following in a clear and understandable way, combined with the preferred embodiments and the drawings.

[0038] Figure 1 It is the expansion structure schematic diagram of movable baffle and fixed baffle of the utility model;

[0039] Figure 2 It is the internal structure schematic diagram of movable baffle and fixed baffle after closing of the utility model;

[0040] Figure 3 It is the structure schematic diagram of movable baffle and fixed baffle after closing of the utility model;

[0041] Figure 4 It is the side view of movable baffle and fixed baffle after closing of the utility model;

[0042] Figure 5 It is Figure 2 It is the local enlarged schematic diagram of A in the utility model.

[0043] In the figure: 1, fixed baffle, 101, first plate body, 102, sliding rod, 103, base, 2, movable baffle, 201, second plate body, 202, guide pipe, 3, elastic piece, 401, mounting block, 402, transmission shaft, 403, locking hook, 404, locking block, 405, pedal, 4051, vertical rod, 4052, horizontal rod, 406, connecting block, 407, tension spring, 5, linear bearing, 6, supporting leg. DETAILED DESCRIPTION

[0044] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, specific embodiments of the present application will be described below with reference to the drawings. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor, and other embodiments can also be obtained.

[0045] In order to make the drawing simple, only the parts related to the present application are shown in the drawings, which do not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the parts with the same structure or function is shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0046] In this paper, it should be noted that unless otherwise specified and limited, the terms "mounting", "connecting" and "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] In addition, in the description of the present application, the terms "first", "second" and the like are only used for differentiation and description, and cannot be understood as indicating or implying relative importance.

[0048] Reference Figures 1-5For an embodiment of the utility model, propose a wellhead mud blocking device, set up in wellhead, including fixed baffle 1;The movable baffle 2 is slidably arranged on the fixed baffle 1;Elastic member 3 is arranged on the fixed baffle 1, the movable end of elastic member 3 is arranged on the movable baffle 2, and elastic member 3 is used to provide the force that the movable baffle 2 slides and expands;Locking hook 403 is rotatably arranged on the fixed baffle 1;Locking block 404 is arranged on the movable baffle 2, locking block 404 is clamped with locking hook 403, after locking hook 403 and locking block 404 are separated, elastic member 3 pushes the movable baffle 2 and slides and expands.

[0049] In the above scheme, a telescopic baffle is installed in front of the wellhead tool, which includes a fixed baffle 1 and a movable baffle 2, the movable baffle 2 is slidably connected to the fixed baffle 1 by sleeving, one end of the elastic member 3 is fixed to the bottom of the fixed baffle 1, the other end is connected to the bottom of the movable baffle 2, the locking hook 403 is a hook fixed on one side of the fixed baffle 1, and the locking block 404 is a lock installed on the corresponding position of the movable baffle 2.

[0050] When the wellhead tool is unloaded, the worker opens the locking hook 403, the elastic force of the elastic member 3 pushes the movable baffle 2 to slide and expand along the fixed baffle 1, blocks the wellhead position, and prevents mud from splashing. The device is easy to operate, and the worker can be away from the wellhead after the wellhead tool is unloaded, reducing the situation that mud splashes on the worker, and improving the working environment of the worker.

[0051] Further, the fixed baffle 1 includes a base 103;The sliding rod 102 has a plurality of, a plurality of sliding rods 102 are arranged on the base 103;The first plate body 101 has a plurality of, at least one first plate body 101 is arranged between adjacent sliding rods 102.

[0052] In the above scheme, the base 103 is a long strip-shaped metal plate, the sliding rod 102 is a plurality of metal cylinders, which are vertically welded on the base 103, and the first plate body 101 is installed between adjacent sliding rods 102. When installing the device at the wellhead, first fix the base 103 at a suitable position near the wellhead, and the sliding rod 102 and the first plate body 101 constitute the frame of the fixed baffle 1, which provides support and guidance for the sliding of the movable baffle 2. The fixed baffle 1 has simple structure and is convenient to use, and the sliding rod 102 and the first plate body 101 made of metal have high strength and can withstand mud impact.

[0053] Further, the movable baffle 2 includes a guide pipe 202, the guide pipe 202 has a plurality of, each guide pipe 202 is slidably sleeved on a sliding rod 102;The second plate body 201 has a plurality of, at least one second plate body 201 is arranged between adjacent guide pipes 202.

[0054] In the above scheme, the guide pipe 202 is a hollow metal pipe matched with the sliding rod 102, sleeved on the sliding rod 102 and freely slidable, and the second plate body 201 is a flat plate structure installed between adjacent guide pipes 202. The movable baffle 2 slides on the sliding rod 102 through the guide pipe 202, and when the elastic member 3 pushes the movable baffle 2 to expand or the worker presses the movable baffle 2, the guide pipe 202 ensures the movable baffle 2 to slide in a fixed direction. The guide pipe 202 cooperates with the sliding rod 102 to make the sliding of the movable baffle 2 stable and improve the effect of blocking mud.

[0055] Further, at least one sliding rod 102 is a hollow structure, and the elastic member 3 is a spring rod, one end of the spring rod being arranged in the hollow sliding rod 102 and the other end of the spring rod being arranged on the top surface of the inner wall of the guide pipe 202.

[0056] In the above scheme, the sliding rod 102 located in the middle of the fixed baffle 1 is hollow, the spring rod is used as the elastic member 3, one end of the spring rod is fixed at the bottom of the hollow sliding rod 102, and the other end of the spring rod abuts against the top surface of the inner wall of the guide pipe 202. The elastic member 3 can also be an air compression spring.

[0057] When the locking hook 403 is opened, the spring rod pushes the guide pipe 202 and the movable baffle 2 to rise, and when the locking hook 403 is closed, the worker presses the movable baffle 2 to compress the spring rod. It should be noted that the pushing force of the air compression spring is slightly larger than the gravity of the mud guard, and the worker can easily press down the mud guard. The spring rod is installed in the hollow sliding rod 102, thereby saving space and providing stable spring force for the movable baffle 2 to provide reliable driving force.

[0058] Further, the device further comprises a plurality of mounting blocks 401, the plurality of mounting blocks 401 being arranged on the base 103 at intervals; a transmission shaft 402 sequentially penetrating the plurality of mounting blocks 401 and being rotatably arranged on the mounting blocks 401; the locking hook 403 being arranged on the base 103 through the transmission shaft 402; and a locking block 404 being arranged on the second plate body 201, the locking hook 403 being close to or away from the locking block 404 after the second plate body 201 slides.

[0059] In the above scheme, the mounting block 401 is a metal block, the mounting block 401 being welded on the base 103 at intervals, the transmission shaft 402 penetrating the through hole of the mounting block 401 and being rotatable, the locking hook 403 being welded on one end of the transmission shaft 402, and the locking block 404 being arranged on the side of the second plate body 201 close to the locking hook 403. When the movable baffle 2 slides downward, the locking block 404 pushes the locking hook 403 to rotate around the transmission shaft 402 to open, and after the movable baffle 2 is lowered to the position, the locking hook 403 is turned back to the original position to lock the locking block 404 under the action of the tension spring 407. The movable baffle 2 is automatically locked at a specific position, which is convenient for the worker to operate and improves the stability of the device.

[0060] Further, the connecting block 406 is arranged on the base 103, the pedal 405 is arranged on the other end of the transmission shaft 402, and the one end of the tension spring 407 is arranged on the pedal 405 and the other end is arranged on the connecting block 406, and the tension spring 407 is used to provide the force for the locking hook 403 to press the locking block 404.

[0061] In the above scheme, the connecting block 406 is welded on the base 103, the pedal 405 is fixed on the other end of the transmission shaft 402, and the one end of the tension spring 407 is hung on the pedal 405 and the other end is hung on the connecting block 406.

[0062] Working process: the worker steps on the pedal 405, the transmission shaft 402 rotates to drive the locking hook 403 to open, the pedal 405 is loosened, and the tension of the tension spring 407 makes the locking hook 403 reset. The locking hook 403 is controlled by stepping on the pedal 405, which is simple and convenient to operate, and greatly improves the operation efficiency.

[0063] Further, the linear bearing 5 is arranged between the sliding rod 102 and the guide pipe 202.

[0064] In the above scheme, the linear bearing 5 is installed at the position where the inner wall of the guide pipe 202 contacts with the sliding rod 102. When the movable baffle 2 slides, the linear bearing 5 rolls on the sliding rod 102, reducing the friction between the guide pipe 202 and the sliding rod 102. The sliding resistance of the movable baffle 2 is reduced, the sliding is smoother, the component wear is reduced, and the service life of the device is prolonged.

[0065] Further, the pedal 405 includes a horizontal rod 4052, the other end of the transmission shaft 402 is arranged on the rod body of the horizontal rod 4052, and the tension spring 407 is arranged on one end of the horizontal rod 4052; a vertical rod 4051 is arranged on the other end of the horizontal rod 4052.

[0066] In the above scheme, the horizontal rod 4052 is a metal rod, the transmission shaft 402 is welded in the middle of the rod body of the horizontal rod 4052, the tension spring 407 is connected to one end of the horizontal rod 4052, and the vertical rod 4051 is vertically welded on the other end of the horizontal rod 4052. The worker steps on the vertical rod 4051, the horizontal rod 4052 rotates around the transmission shaft 402, drives the transmission shaft 402 to rotate, and then controls the opening and closing of the locking hook 403. The horizontal rod 4052 and the vertical rod 4051 of the pedal 405 are designed by using the lever principle, which is convenient for the worker to exert force and improves the operation comfort.

[0067] Further, the first plate body 101 and the second plate body 201 are arranged in a staggered manner.

[0068] In the above scheme, the first plate body 101 and the second plate body 201 are staggered after installation, which facilitates the folding of the movable baffle 2. And during the sliding process of the movable baffle 2, the staggered plate body can effectively block the mud, avoiding the splashing of mud from the gap of the plate body. Improve the sealing of the mud, and enhance the effect of the device.

[0069] Further, it also includes a support leg 6, the support leg 6 has several, the several support legs 6 are arranged on the base 103.

[0070] In the above scheme, the support leg 6 is a height-adjustable metal rod with a non-slip pad at the bottom, evenly distributed below the base 103. According to the flatness of the wellhead ground, adjust the height of the support leg 6 to keep the base 103 level and stable, then fix the device at the wellhead position to ensure the stability of the device installation, adapt to different wellhead ground conditions, and improve the applicability of the device.

[0071] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced without departing from the spirit and scope of the present application. It should be included in the scope of the claims of the present application.

Claims

1. A wellhead mud-blocking device, installed at the wellhead, characterized in that, include: Fixed baffle (1); The movable baffle (2) is slidably disposed on the fixed baffle (1); An elastic element (3) is disposed on the fixed baffle (1), and the movable end of the elastic element (3) is disposed on the movable baffle (2). The elastic element (3) is used to provide the force for the movable baffle (2) to slide and unfold. The locking hook (403) is rotatably mounted on the fixed baffle (1); A locking block (404) is disposed on the movable baffle (2). The locking block (404) is engaged with the locking hook (403). After the locking hook (403) is disengaged from the locking block (404), the elastic element (3) pushes the movable baffle (2) to slide and unfold.

2. The wellhead mud-blocking device according to claim 1, characterized in that, The fixed baffle (1) includes: Base (103); A plurality of sliding rods (102) are provided, and the plurality of sliding rods (102) are spaced apart on the base (103); The first plate (101) has a plurality of plates, and at least one first plate (101) is disposed between adjacent sliding rods (102).

3. A wellhead mud-blocking device according to claim 2, characterized in that, The movable baffle (2) includes: There are several guide tubes (202), and each guide tube (202) is slidably sleeved on a sliding rod (102); The second plate (201) has a plurality of plates, and at least one second plate (201) is disposed between adjacent guide tubes (202).

4. A wellhead mud-blocking device according to claim 3, characterized in that, At least one of the sliding rods (102) is hollow, the elastic element (3) is a spring rod, one end of the elastic element (3) is disposed inside the hollow sliding rod (102), and the other end of the elastic element (3) is disposed on the top surface of the inner wall of the guide tube (202).

5. A wellhead mud-blocking device according to claim 3, characterized in that, Also includes: There are a plurality of mounting blocks (401), and the plurality of mounting blocks (401) are spaced apart on the base (103); A drive shaft (402) passes through several mounting blocks (401) in sequence, and the drive shaft (402) is rotatably mounted on the mounting blocks (401); the locking hook (403) is mounted on the base (103) via the drive shaft (402); the locking block (404) is mounted on the second plate (201), and after the second plate (201) slides, the locking hook (403) moves closer to or further away from the locking block (404).

6. A wellhead mud-blocking device according to claim 5, characterized in that, Also includes: A connecting block (406) is disposed on the base (103); A pedal (405) is disposed on the other end of the drive shaft (402); A tension spring (407) is provided at one end on the pedal (405) and at the other end on the connecting block (406). The tension spring (407) is used to provide the locking hook (403) to press the locking block (404) with force.

7. A wellhead mud-blocking device according to claim 3, characterized in that, Also includes: A linear bearing (5) is disposed between the sliding rod (102) and the guide tube (202).

8. A wellhead mud-blocking device according to claim 6, characterized in that, The pedal (405) includes: A crossbar (4052), the other end of which is provided on the body of the crossbar (4052), and a tension spring (407) is provided on one end of the crossbar (4052); The longitudinal bar (4051) is located at the other end of the transverse bar (4052).

9. A wellhead mud-blocking device according to claim 3, characterized in that, The first plate (101) and the second plate (201) are arranged in a staggered manner.

10. A wellhead mud-blocking device according to claim 2, characterized in that, Also includes: The support legs (6) are a plurality of each other, and the plurality of the support legs (6) are spaced apart on the base (103).

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