Petroleum underground hydraulic shearing device

Abstract

The utility model discloses a petroleum underground hydraulic shearing device which structurally comprises a mounting frame, a lifting assembly and a moving frame. The mounting frame is composed of a connecting rod, wherein a top plate and a bottom plate are fixedly arranged at the two ends of the connecting rod respectively. The lifting assembly is arranged on the mounting frame, is connected with the moving frame and controls the moving frame to slide and lift along the connecting rod; the moving frame is provided with a steering assembly, the steering assembly comprises a rotating shaft, the rotating shaft is rotationally connected with the inner side of the moving frame and connected with a shear shear, and the shear shear is controlled to rotate to adjust the angle; an auxiliary fixing assembly is arranged on the top plate, the height of the movable frame and the height of the shear shear are adjusted by arranging the lifting assembly on the mounting frame, the height where the shear shear is located can be rapidly adjusted, and the device is suitable for shearing operation of different well depths. The utility model belongs to the field of shearing devices, and particularly relates to a petroleum underground hydraulic shearing device.

Description

TECHNICAL FIELD

[0001] The utility model belongs to shearing device field, specifically point to a petroleum downhole hydraulic shearing device. BACKGROUND

[0002] In the petroleum downhole operation, the hydraulic shearing device is important equipment for cutting downhole pipeline or other obstacles, in the process of pumping pipeline into or pumping out, the pumping pipeline movement work is easy to be affected by the pipeline left or other hard objects, needs to use the hydraulic shearing device to cut operation.

[0003] The existing petroleum downhole hydraulic shearing device is mostly fixed length hydraulic shearing scissors, it is difficult to adjust the shearing position in the deep well, part is connected on the fixed device and goes into the well to complete the shearing operation, but it is difficult to adjust for different angle shearing scene, and the adjustment adaptability is poor. UTILITY MODEL CONTENTS

[0004] The technical problem to be solved by the utility model is that the depth and shearing angle are inconvenient to adjust.

[0005] To solve the above problems, the technical scheme adopted by the utility model is as follows: the petroleum downhole hydraulic shearing device provided by the utility model comprises a mounting frame, a lifting assembly and a moving frame:

[0006] The mounting frame is composed of a connecting rod with a top plate and a bottom plate fixed at both ends respectively;

[0007] The lifting assembly is arranged on the mounting frame and connected with the moving frame, and controls the moving frame to slide and lift along the connecting rod;

[0008] The moving frame is provided with a steering assembly, the steering assembly comprises a rotating shaft, the rotating shaft is rotatably connected with the inner side of the moving frame, and a shearing scissors is connected, and the shearing scissors is controlled to rotate and adjust the angle;

[0009] The top plate is provided with an auxiliary fixing assembly.

[0010] Further, the bottom plate is provided with a rubber pad.

[0011] Further, the lifting assembly comprises a first motor and a lead screw, the first motor is fixedly arranged on the top of the top plate, the lead screw is rotatably arranged between the top plate and the bottom plate, and is arranged in parallel with the connecting rod, and the lead screw penetrates the top plate and is connected with the shaft of the first motor.

[0012] Further, the lead screw penetrates the moving frame vertically, and the connecting rod penetrates the moving frame vertically.

[0013] Further, the steering assembly further comprises a second motor, the second motor is fixedly arranged on the side of the moving frame, and the rotating shaft penetrates the moving frame and is connected with the shaft of the second motor.

[0014] Further, the shearing cutter comprises a first force arm and a second force arm, one end of the first force arm is fixedly connected with the rotating shaft, the first force arm and the second force arm are rotationally connected, a hydraulic telescopic assembly is arranged between the first force arm and the second force arm, and the adjacent surfaces of the first force arm and the second force arm are fixedly provided with shearing knives.

[0015] Further, the first force arm and the second force arm are respectively provided with a camera and a light supplement lamp.

[0016] Further, the top plate is provided with a connecting port, the auxiliary fixing assembly comprises a counterweight box, the counterweight box is fixedly provided with an insertion block at a position connected with the top plate and is in plug-in embedded connection with the connecting port, the upper portion of the counterweight box is in a box structure, and the lower portion of the counterweight box is provided with an anti-skid surface.

[0017] The petroleum downhole hydraulic shearing device has the following beneficial effects achieved by the above structure:

[0018] 1. The petroleum downhole hydraulic shearing device can quickly adjust the height of the shearing cutter and is suitable for shearing operations of different well depths.

[0019] 2. The petroleum downhole hydraulic shearing device can adjust the angle of the shearing cutter by the turning assembly and is suitable for shearing scenes of different angles and wellbores of different diameters. DETAILED DESCRIPTION

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

[0021] Figure 2 It is a schematic diagram of the overall structure of the utility model; Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 3 It is a first partial structure schematic diagram of the utility model;

[0023] Figure 4 It is a second partial structure schematic diagram of the utility model.

[0024] Among them, 1. Mounting frame, 101. Top plate, 102. Bottom plate, 103. Connecting rod, 104. Pad plate, 2. Lifting assembly, 201. First motor, 202. Lead screw, 3. Moving frame, 4. Steering assembly, 401. Second motor, 402. Rotating shaft, 5. Shearing shear, 501. First lever arm, 502. Second lever arm, 503. Hydraulic telescopic assembly, 504. Shearing blade, 505. Camera, 506. Fill light, 6. Auxiliary fixing assembly, 601. Connecting port, 602. Counterweight box, 603. Insert block, 604. Anti-slip surface.

[0025] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0027] like Figures 1-4 As shown, the present invention proposes a hydraulic shearing device for oil wells, including a mounting frame 1, a lifting assembly 2 and a moving frame 3. The mounting frame 1 is composed of a connecting rod 103 with a top plate 101 and a bottom plate 102 fixed at both ends respectively. The bottom of the bottom plate 102 is provided with a rubber pad 104 to prevent the mounting frame 1 from colliding with the bottom of the oil well or the equipment in the pipeline.

[0028] like Figures 1-2 As shown, the lifting assembly 2 is mounted on the mounting frame 1 and connected to the movable frame 3, controlling the movable frame 3 to slide and lift along the connecting rod 103; the lifting assembly 2 includes a first motor 201 and a lead screw 202. The first motor 201 is fixed to the top of the top plate 101, and the lead screw 202 is rotatably disposed between the top plate 101 and the bottom plate 102, and is arranged parallel to the connecting rod 103. The lead screw 202 passes through the top plate 101 and is axially connected to the first motor 201. The lead screw 202 is vertically threaded through the movable frame 3, controlling the movement of the movable frame 3. The connecting rod 103 slides vertically through the movable frame 3, limiting the direction of movement of the movable frame 3.

[0029] like Figures 1-2As shown, the mobile frame 3 is provided with a steering assembly 4, the steering assembly 4 includes a rotating shaft 402, the rotating shaft 402 is rotatably connected to the inside of the mobile frame 3, and is connected with a shearing shear 5, the shearing shear 5 is rotatably adjusted; the steering assembly 4 further includes a second motor 401, the second motor 401 is fixedly arranged on the side of the mobile frame 3, the rotating shaft 402 is rotatably penetrated through the mobile frame 3 and the shaft of the second motor 401, the second motor 401 is selected from a stepper motor, and the rotating shaft 402 and the shearing shear 5 are rotatably adjusted to adjust the shearing angle.

[0030] As shown in the figure, Figures 1-2 The shearing shear 5 includes a first force arm 501 and a second force arm 502, one end of the first force arm 501 is fixedly connected with the rotating shaft 402, the first force arm 501 and the second force arm 502 are rotatably connected, a hydraulic telescopic assembly 503 is arranged between the first force arm 501 and the second force arm 502, the adjacent surfaces of the first force arm 501 and the second force arm 502 are fixedly provided with shearing knives 504, the fixed end and the movable end of the hydraulic telescopic assembly 503 are hingedly connected with the first force arm 501 and the second force arm 502 respectively, the second force arm 502 is controlled to move to complete the shearing work, the first force arm 501 and the second force arm 502 are respectively provided with a camera 505 and a fill light 506, which are used to observe the actual situation of the weak light in the oil well, so as to facilitate the subsequent rapid adjustment of the shearing angle and position.

[0031] As shown in the figure, Figures 1-3 The top plate 101 is provided with an auxiliary fixing assembly 6, the top plate 101 is provided with a connecting port 601, the auxiliary fixing assembly 6 includes a counterweight box 602, the counterweight box 602 is fixedly provided with an insertion block 603 at the connection position of the top plate 101, and is plug-in embeddedly connected with the connecting port 601, the upper part of the counterweight box 602 is arranged in a box structure, which is convenient for loading counterweight objects, the lower part of the counterweight box 602 is arranged as a non-slip surface 604, which increases the friction and avoids loosening of the mounting frame 1 and the auxiliary fixing assembly 6 from the wellhead ground.

[0032] When the hard objects such as oil well pipelines need to be sheared, the device is inserted into the well along the well after the oil pipeline is pulled out along the wellhead, at the same time, the top plate 101 is arranged on the edge of the wellhead, the counterweight box 602 is installed on the top plate 101 through the cooperation of the connecting port 601 and the insertion block 603, and the counterweight stones are loaded in the counterweight box 602, the simple fixing of the mounting frame 1 is completed, the first motor 201 is started to rotate the screw rod 202, under the limiting guidance of the connecting rod 103, the mobile frame 3 connected with the shearing shear 5 is moved to the position needed to be sheared, the second motor 401 is started to rotate the rotating shaft 402 and the shearing shear 5, and the shearing angle is adjusted to the angle needed to be sheared, at the same time, the inclination angle of the shearing shear 5 is adjusted to be suitable for different diameters of the well, the hydraulic telescopic assembly 503 is started to control the second force arm 502 to rotate with the first force arm 501, and the shearing work is completed.

[0033] The above has described the utility model and its implementation mode, which is not restrictive, and the drawings only show one of the implementation modes of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structural modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.

Claims

1. An oil downhole hydraulic shearing device, characterized in that, The utility model relates to a kind of mobile frame, including mounting frame (1), lifting assembly (2) and mobile frame (3): The mounting frame (1) is composed of connecting rod (103) with top plate (101) and bottom plate (102) fixed at both ends respectively; The lifting assembly (2) is provided on the mounting frame (1), and is connected with the mobile frame (3), controls the mobile frame (3) to slide along the connecting rod (103) and lift; The mobile frame (3) is provided with a steering assembly (4), the steering assembly (4) includes a rotating shaft (402), the rotating shaft (402) is rotatably connected to the inner side of the mobile frame (3), and a shear shear (5) is connected, to control the shear shear (5) to rotate and adjust the angle; The top plate (101) is provided with an auxiliary fixing assembly (6).

2. A hydraulic shearing device for use downhole in an oil well as claimed in claim 1 wherein: The bottom plate (102) is provided with a rubber pad (104) at the bottom.

3. A hydraulic shearing device for use downhole in an oil well as claimed in claim 1 wherein: The lifting assembly (2) includes a first motor (201) and a lead screw (202), the first motor (201) is fixedly arranged on the top of the top plate (101), the lead screw (202) is rotatably arranged between the top plate (101) and the bottom plate (102), and is arranged in parallel with the connecting rod (103), the lead screw (202) penetrates the top plate (101) and is connected with the shaft of the first motor (201).

4. A hydraulic shearing device for use downhole in an oil well as claimed in claim 3 wherein: The lead screw (202) penetrates the mobile frame (3) vertically, and the connecting rod (103) penetrates the mobile frame (3) vertically.

5. The hydraulic shearing device for use in oil wells according to claim 1, characterized in that: The steering assembly (4) further includes a second motor (401), the second motor (401) is fixedly arranged on the side of the mobile frame (3), the rotating shaft (402) penetrates the mobile frame (3) and is connected with the shaft of the second motor (401).

6. A hydraulic shearing device for use downhole in an oil well as claimed in claim 5 wherein: The shear shear (5) includes a first force arm (501) and a second force arm (502), one end of the first force arm (501) is fixedly connected with the rotating shaft (402), the first force arm (501) and the second force arm (502) are rotatably connected, a hydraulic telescopic assembly (503) is arranged between the first force arm (501) and the second force arm (502), the first force arm (501) and the second force arm (502) are fixedly provided with a shear cutter (504) on the adjacent surface, and the fixed end and the movable end of the hydraulic telescopic assembly (503) are hingedly connected with the first force arm (501) and the second force arm (502).

7. A hydraulic shearing device for use downhole in an oil well as claimed in claim 6 wherein: The first force arm (501) and the second force arm (502) are respectively provided with a camera (505) and a fill light (506).

8. A hydraulic shearing device for use downhole in an oil well as claimed in claim 1, wherein: The top plate (101) is provided with a connecting port (601), the auxiliary fixing assembly (6) includes a counterweight box (602), the counterweight box (602) is fixedly provided with a plug block (603) at the connection with the top plate (101), and is plug-in embeddedly connected with the connecting port (601), the upper part of the counterweight box (602) is provided as a box structure, and the lower part of the counterweight box (602) is provided as an anti-slip surface (604).

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