Safety protection equipment for oil field downhole operation

Abstract

The utility model discloses safety protection equipment for oil field underground operation, which comprises a base, a top plate is arranged above the base, the upper end of the base is provided with two and four sliding chutes, and a buffer mechanism for buffering the top plate is jointly arranged in the two sliding chutes on the same side. The buffering mechanism comprises two sliding blocks slidably connected into the two sliding grooves, grooves are formed in the upper ends of the two sliding blocks correspondingly, rotating rods are rotationally connected into the two grooves correspondingly, fixing blocks are rotationally connected to the ends, away from the sliding blocks, of the two rotating rods correspondingly, and the upper ends of the two fixing blocks are fixedly connected to the lower end of a top plate. The side walls of the two sliding blocks are elastically connected with the inner wall of the sliding groove on the same side through springs. The device is reasonable in structure, falling objects can be blocked through the buffering mechanism and the top plate, meanwhile, when the falling objects make contact with the top plate, the top plate is buffered, top plate damage caused by impact force is avoided, and the service life of the device is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil well operation technical field especially relates to a safety protection equipment for oilfield downhole operation. BACKGROUND

[0002] Oilfield downhole operation is an important link in oil exploitation, including drilling, well repairing, well logging, well completion and other operations. Because of the complex downhole environment, there are many safety hazards in the operation process, such as when working in the oil well, the staff is located in the downhole, and it is easy to drop sundries at the wellhead, causing danger.

[0003] In the prior art, the traditional oil well protection device is often installed with a baffle at the wellhead to prevent sundries from falling down, but the traditional baffle is mostly simple in structure, and is easily damaged under the strong impact force of the falling sundries due to the lack of shock absorption. Therefore, the utility model provides a safety protection equipment for oilfield downhole operation to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a safety protection equipment for oilfield downhole operation.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A safety protection equipment for oilfield downhole operation, comprising a base, a top plate is arranged above the base, two or four sliding grooves are formed in the upper end of the base, a buffer mechanism for buffering the top plate is arranged in the same side of the two sliding grooves, the buffer mechanism comprises two sliding blocks slidingly connected in the two sliding grooves, recesses are formed in the upper end of the two sliding blocks, rotating rods are rotatably connected in the two recesses, fixed blocks are rotatably connected at the end of the rotating rods away from the sliding blocks, the upper end of the two fixed blocks is fixedly connected to the lower end of the top plate, and the side wall of the two sliding blocks and the inner wall of the same side sliding groove are elastically connected through springs.

[0007] Preferably, the top plate is designed in a triangular shape, and the upper end of the top plate is provided with two symmetrically arranged inclined surfaces.

[0008] Preferably, the upper end of the base is fixedly connected with two symmetrically arranged dampers, and the telescopic end of the two dampers is fixedly connected to the lower end of the top plate.

[0009] Preferably, an opening is formed in the center of the base.

[0010] Preferably, four ground plugs are fixedly connected to the lower end of the base, and the four ground plugs are distributed in a rectangular shape.

[0011] Preferably, the two side walls of the base are fixedly connected with side baffles.

[0012] Compared with the prior art, the utility model has the advantages of:

[0013] 1. By setting up the buffer mechanism, when using, the base is installed to the well mouth ground, the roof can shield the well mouth, realizes the protection to the well mouth, when falling object appears, the roof can block the falling object, and when the falling object contacts the roof, the impact force extrudes the roof, drives two fixed blocks to move down, drives the rotating rod on both sides to rotate, thereby drives the slider on both sides to move, extrudes the spring, and extrudes the damper simultaneously, realizes the buffering to the roof, avoids the impact force causing the roof to be damaged, improves the service life of the device.

[0014] 2. By setting up the side baffle, the side baffle can shield the well mouth from the side, can effectively avoid sundries from entering the well from both sides, greatly improves the protection effect to the well body, and improves the practicality of the device. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a perspective view of a safety protection equipment for oilfield downhole operation provided by the utility model;

[0016] Figure 2 It is a perspective view of a safety protection equipment for oilfield downhole operation provided by the utility model;

[0017] Figure 3 It is a perspective view of a safety protection equipment for oilfield downhole operation provided by the utility model;

[0018] Figure 4 It is a side view of a safety protection equipment for oilfield downhole operation provided by the utility model;

[0019] Figure 5 It is Figure 2 A structure enlarged view in the figure.

[0020] In the figure: 1 base, 2 side baffle, 3 roof, 4 inclined plane, 5 ground insertion, 6 opening, 7 fixed block, 8 rotating rod, 9 slider, 10 damper, 11 spring, 12 sliding groove. DETAILED DESCRIPTION

[0021] In order to make the above objects, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in many different ways other than those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific implementation disclosed below.

[0022] Referring to Figures 1-5 The utility model discloses a kind of safety protection equipment for oilfield downhole operation, including base 1, top plate 3 is provided in the upper of base 1, two four sliding grooves 12 are opened in the upper end of base 1, buffer mechanism for buffering top plate 3 is commonly provided in the two sliding grooves 12 located in same side, buffer mechanism includes two sliding blocks 9 slidingly connected in two sliding grooves 12, recess is opened in the upper end of two sliding blocks 9, two recesses are rotatably connected with rotating rod 8, one end of two rotating rods 8 away from sliding block 9 is rotatably connected with fixed block 7, the upper end of two fixed blocks 7 is fixedly connected in the lower end of top plate 3, and the side wall of two sliding blocks 9 and the inner wall of same side sliding groove 12 are elastically connected by spring 11.

[0023] In the utility model, top plate 3 is designed as triangle, the upper end of top plate 3 is provided with two sides symmetrical inclined plane 4, the upper end of base 1 is fixedly connected with two symmetrical dampers 10, the telescopic end of two dampers 10 is fixedly connected in the lower end of top plate 3, the design of inclined plane 4 can make falling object slide, avoid causing accumulation, and under the action of damper 10, falling object can be effectively bounced away by the rapid rebound of top plate 3, and danger is caused.

[0024] In the utility model, opening 6 is opened in base 1, opening 6 is located at the center of base 1, the lower end of base 1 is fixedly connected with four ground inserts 5, four ground inserts 5 are distributed in rectangle, the side wall of base 1 is fixedly connected with side baffle 2, two side baffles 2 are designed as L shape, opening 6 cooperates with well mouth, ground insert 5 is used to be inserted into ground to fix device, under the action of side baffle 2, well mouth can be shielded from side, and foreign matter can be effectively avoided to enter into well, and the protection effect to well body is greatly improved.

[0025] The utility model discloses when using, when using, install base 1 to well mouth ground, top plate 3 can shelter well mouth, realize the protection to well mouth, when falling object appears, top plate 3 can block falling object, and when falling object and top plate 3 contact, impact force extrudes top plate 3, pushes down two fixed blocks 7, pushes the rotation rod 8 of both sides and rotates to push the slider 9 of both sides and move, extrude spring 11, extrude damper 10 simultaneously, realize the buffering to top plate 3, avoid impact force and cause top plate 3 to be damaged, improve the service life of device, and side baffle 2 can shelter well mouth from the side, can effectively avoid sundries and enter into the well from both sides, greatly improved the protection effect to well body.

[0026] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the utility model disclosed technical range, according to the utility model technical scheme and the utility model concept are equivalent to replace or change, all should be covered in the protection scope of the utility model.

Claims

1. A safety protection device for oilfield downhole operations, comprising a base (1), characterized in that, The upper end of the base (1) is provided with two four sliding grooves (12), two sliding grooves (12) located in the same side are commonly provided with a buffer mechanism for buffering the top plate (3), the buffer mechanism comprises two sliding blocks (9) slidingly connected in the two sliding grooves (12), the upper end of the two sliding blocks (9) is provided with a groove, the two grooves are rotatably connected with a rotating rod (8), the end of the two rotating rods (8) away from the sliding block (9) is rotatably connected with a fixed block (7), the upper end of the two fixed blocks (7) is fixedly connected with the lower end of the top plate (3), the side wall of the two sliding blocks (9) and the inner wall of the same side sliding groove (12) are elastically connected through the spring (11).

2. A safety protection device for oilfield downhole operations according to claim 1, characterized in that, The top plate (3) is designed in a triangular shape, and the upper end of the top plate (3) is provided with two symmetrically arranged inclined surfaces (4).

3. A safety protection device for oilfield downhole operations according to claim 2, characterized in that, The upper end of the base (1) is fixedly connected with two symmetrically arranged dampers (10), and the telescopic ends of the two dampers (10) are fixedly connected with the lower end of the top plate (3).

4. A safety protection device for oilfield downhole operations according to claim 3, characterized in that, The base (1) is provided with an opening (6), and the opening (6) is located at the center of the base (1).

5. A safety protection device for oilfield downhole operations according to claim 4, characterized in that, The lower end of the base (1) is fixedly connected with four ground plugs (5), and the four ground plugs (5) are distributed in a rectangular shape.

6. A safety protection device for oilfield downhole operations as defined in claim 5, wherein, The two side walls of the base (1) are fixedly connected with side baffles (2), and the two side baffles (2) are designed in an L shape.

Images