Anti-abrasion device for petroleum wellhead cable

Abstract

The utility model relates to the field of petroleum well logging, and discloses a petroleum wellhead cable anti-abrasion device which comprises a mounting frame, a fixed pulley is rotatably connected to the inner side of the mounting frame, a sliding groove is formed in the inner wall of the mounting frame, and a direction adjusting assembly is jointly arranged on the inner side of the mounting frame and the interior of the sliding groove. A fixing mechanism is arranged on the lower left portion of the mounting frame and comprises a concave plate, the top end and the right end of the concave plate are fixedly connected with the lower left end of the mounting frame, an air bag is fixedly connected to the inner wall of the concave plate, and a pressing block is slidably connected to the inner wall of the concave plate. According to the utility model, through the arrangement of the fixing mechanism, it is ensured that the air bag and the pressing blocks can be better attached to the outer wall of the wellhead through different distances of movement of the different pressing blocks and deformation of the air bag, so that it is ensured that when a cable enters and exits the wellhead, the cable is not prone to abrasion in a rolling friction mode, and the service life of the cable is prolonged. And the position of the pulley is stable and not easy to move in the use process.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of oil well logging, especially relates to a petroleum wellhead cable anti-abrasion device. BACKGROUND

[0002] Petroleum is a viscous liquid hydrocarbon mixture formed by the long-time transformation of ancient marine or lacustrine biological remains under high temperature and high pressure, which is widely used in fuel, chemical raw materials, medicine, building materials and other fields, and has an important influence on global economy and industrial production.

[0003] In order to identify the position, thickness and oil-gas-water interface of the oil and gas reservoir, and determine the scale and distribution of the oil and gas reservoir, horizontal well logging technology is usually used to provide an important basis for oil and gas exploration and development, and the most representative method of horizontal well logging technology is wet sub joint horizontal logging technology by drill pipe, in which the instrument is connected to the bottom of the drilling tool through an over short joint, and the instrument is sent to the top of the formation to be measured by the drilling tool, after the instrument reaches the measurement position, the cable is led out through the side hole of the bypass short joint, and is fixed on the bypass short joint by a cable clamp, and the cable above the bypass short joint is led to the winch through the side pulley, the sky pulley and the ground pulley outside the drilling tool.

[0004] In actual use, the cable is prone to damage when entering and exiting the wellhead due to contact and friction with the wellhead, in order to prevent the cable from being damaged, the 7-shaped pulley is used to make the cable roll when entering and exiting the wellhead during use, thereby protecting the cable, but in actual use, since the shape of the wellhead is mostly circular, the 7-shaped pulley is prone to position deviation due to external force during use, thereby affecting use, therefore, the petroleum wellhead cable anti-abrasion device is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a petroleum wellhead cable anti-abrasion device, which aims to improve the problem that the cable is prone to wear during use, but the pulley is inconvenient to install near the wellhead in the prior art.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a kind of petroleum wellhead cable abrasion protector device, including mounting frame, the inner side of the mounting frame is rotatably connected with fixed pulley, the inner wall of the mounting frame is provided with sliding slot, the inner side of the mounting frame and the inside of sliding slot are commonly provided with direction adjusting component, the lower left of the mounting frame is provided with fixed mechanism, the fixed mechanism includes concave plate, the top end and right end of the concave plate are fixedly connected with the lower left end of mounting frame, the inner wall of the concave plate is fixedly connected with air bag, the inner wall of the concave plate is slidably connected with pressing block, the top end of the pressing block is fixedly connected with clamping hole, the inner wall of the concave plate above the pressing block is provided with sliding slot, the inner wall of the sliding slot is slidably connected with mounting frame, the bottom end of the mounting frame is provided with moving slot, the inner wall of the moving slot is slidably connected with clamping block, the top end of the clamping block and the inner wall of the moving slot are elastically connected by spring one.

[0007] As further description of the above technical solution:

[0008] The top end of the mounting frame is rotatably connected with threaded rod, and the outer wall of the threaded rod penetrates and is threadedly connected with the inner wall of the concave plate above the sliding slot.

[0009] As further description of the above technical solution:

[0010] The direction adjusting component includes a rotating shaft, the rotating shaft is arranged in the inside of the sliding slot, the outer wall of the rotating shaft is rotatably connected with a movable pulley, the front end of the rotating shaft is fixedly connected with a fixed plate, the inner wall of the fixed plate is provided with a movable slot, the inner wall of the movable slot is slidably connected with an insertion strip, the front end of the insertion strip and the inner wall of the movable slot are elastically connected by spring two, and the front end of the mounting frame is provided with a plug hole.

[0011] As further description of the above technical solution:

[0012] The number of the fixed pulleys is two, and the two fixed pulleys are arranged in the same vertical plane.

[0013] As further description of the above technical solution:

[0014] The shape of the sliding slot is arc-shaped, and the front end of the mounting frame outside the sliding slot is provided with a scale line.

[0015] As further description of the above technical solution:

[0016] The shape of the fixed plate is circular, and the front end of the fixed plate is provided with a triangular arrow.

[0017] As further description of the above technical solution:

[0018] The material of the air bag is rubber, and the inside of the air bag is hollow.

[0019] As a further description of the above technical solutions:

[0020] The shape of the insertion hole is a shape formed by connecting a plurality of cylindrical recesses with diameters matching the insertion bars, and the plurality of cylindrical recesses are arranged in a circumferential array with the centers of the sliding grooves as the centers.

[0021] The utility model has the advantages of the following beneficial effects:

[0022] 1. In the utility model, by setting the concave plate, air bag, pressing block, clamping hole, mounting frame, clamping block, spring one and threaded rod, different distances can be moved by different pressing blocks, and the deformation of the air bag can be ensured, so that the air bag and the pressing block can better fit the outer wall of the wellhead, thereby ensuring that the equipment can be fixed outside the wellhead, so that the cable can be prevented from being easily worn out by rolling friction when entering and exiting the wellhead, and the position of the pulley is stable and not easy to move during use.

[0023] 2. In the utility model, by setting the rotating shaft, movable pulley, fixed plate, movable groove, insertion bar, spring two and insertion hole, the position of the movable pulley can be adjusted during use, so that the angle between the movable pulley and the upper fixed pulley can be adjusted, so that when the cable needs to be adjusted to different angles, the friction generated when the cable enters and exits the wellhead can be ensured to be rolling friction, so that the cable can be prevented from being easily worn out when it is at different angles. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the overall structure in the utility model;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of the overall structure in the utility model;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the overall structure in the utility model; Figure 2 It is a schematic diagram of the three-dimensional structure of the overall structure in the utility model;

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the overall structure in the utility model;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the overall structure in the utility model; Figure 4 It is a schematic diagram of the three-dimensional structure of the overall structure in the utility model;

[0029] LEGEND:

[0030] 1, mounting frame; 2, fixed pulley; 3, sliding groove; 4, direction adjusting assembly; 5, fixing mechanism; 41, rotating shaft; 42, movable pulley; 43, fixed plate; 44, movable slot; 45, insertion bar; 46, spring two; 47, insertion hole; 51, concave plate; 52, air bag; 53, pressing block; 54, clamping hole; 55, sliding groove; 56, mounting frame; 57, moving slot; 58, clamping block; 59, spring one; 510, threaded rod. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0032] Referring to Figure 1 With Figure 2 The present application provides an embodiment: a kind of petroleum wellhead cable anti-abrasion device, including mounting frame 1, the inner side of mounting frame 1 is rotationally connected with fixed pulley 2, the number of fixed pulley 2 is set to two, and two fixed pulley 2 is arranged in the same vertical plane, the middle part diameter of fixed pulley 2 is less than the diameter of front and back two sides, by the diameter setting of fixed pulley 2, it is more easily contacted with the middle part of fixed pulley 2 in the use process of cable, to ensure that cable is not easily contacted with the inner wall of mounting frame 1, guarantee that cable is not easily worn in the use process, the inner wall of mounting frame 1 is provided with sliding groove 3, the shape of sliding groove 3 is arc, and the front end of mounting frame 1 at the outside of sliding groove 3 is provided with scale line.

[0033] Referring to Figure 2 , Figure 4 With Figure 5An adjusting assembly 4 is provided on the inner side of the mounting bracket 1 and the interior of the slide 3. The adjusting assembly 4 includes a rotating shaft 41, which is cylindrical in shape and located inside the slide 3. A movable pulley 42 is rotatably connected to the outer wall of the rotating shaft 41. The movable pulley 42 is the same size and shape as the fixed pulley 2. A fixed plate 43 is fixedly connected to the front end of the rotating shaft 41. The fixed plate 43 is circular in shape and has a triangular arrow at its front end. The triangular arrow allows the operator to determine the angle between the movable pulley 42 and the upper fixed pulley 2 by referring to the arrow's direction and the scale markings. A movable groove 44 is provided on the inner wall of the fixed plate 43. The inner wall is slidably connected to a strip 45, which is cylindrical in shape. The outer wall of the strip 45 is provided with an annular protrusion with a diameter larger than its diameter. The front end of the strip 45 is provided with a protrusion for the operator to pull. The front end of the strip 45 is elastically connected to the inner wall of the movable groove 44 by a spring 46. One end of the spring 46 is fixedly connected to the front end of the strip 45, and the other end of the spring 46 is fixedly connected to the inner wall of the movable groove 44. The front end of the mounting bracket 1 is provided with a socket 47, which is formed by connecting multiple cylindrical grooves with diameters that fit the strip 45. The multiple cylindrical grooves are arranged in a circular array with the center corresponding to the sliding groove 3, and the socket 47 is only arranged within a 90-degree range.

[0034] Reference Figure 1 - Figure 3 A fixing mechanism 5 is provided on the lower left side of the mounting frame 1. The fixing mechanism 5 includes a concave plate 51. The inner right wall of the concave plate 51 is arc-shaped. The top and right ends of the concave plate 51 are fixedly connected to the lower left end of the mounting frame 1. An airbag 52 is fixedly connected to the inner wall of the concave plate 51. The airbag 52 is made of rubber and is hollow inside. By setting the material and internal structure of the airbag 52, it is ensured that the airbag 52 has the ability to deform, thereby ensuring that it can fit against the wellhead. The inner wall of the concave plate 51 is slidably connected. There is a pressure block 53, and the number of pressure blocks 53 is set to multiple, and the multiple pressure blocks 53 are arranged in a linear array in the front-back direction. A rubber strip is fixedly connected to the right end of the pressure block 53. The rubber strip is set to ensure that the rubber strip at the right end of the pressure block 53 can fit with the wellhead after deformation, thus ensuring the fixing effect. A card hole 54 is fixedly connected to the top of the pressure block 53. A sliding groove 55 is opened on the inner wall of the concave plate 51 above the pressure block 53. A mounting frame 56 is slidably connected to the inner wall of the sliding groove 55. The sliding direction of the mounting frame 56 is up and down.

[0035] Reference Figure 1 - Figure 3The bottom end of the mounting frame 56 is provided with a moving groove 57, the inner wall of the moving groove 57 is slidably connected with a clamping block 58, the sliding direction of the clamping block 58 is upward and downward, the top end of the clamping block 58 is elastically connected with the inner wall of the moving groove 57 through a spring 1 59, one end of the spring 1 59 is fixedly connected with the top end of the clamping block 58, the other end of the spring 1 59 is fixedly connected with the inner wall of the moving groove 57, the top end of the mounting frame 56 is rotatably connected with a threaded rod 510, through the rotatable connection, when the threaded rod 510 rotates, the mounting frame 56 will not rotate, the outer wall of the threaded rod 510 penetrates through and is threadedly connected with the inner wall of the recessed plate 51 above the sliding groove 55.

[0036] Working principle: in use, the staff first fixes the equipment outside the well mouth through the fixing mechanism 5.

[0037] When fixing, the staff first rotates the threaded rod 510, so that the threaded rod 510 drives the mounting frame 56 to move upward, when the mounting frame 56 moves to the uppermost position, the staff moves all the pressing blocks 53 to the leftmost end.

[0038] When the pressing block 53 moves to the leftmost end, the staff places the recessed plate 51 outside the well mouth, and makes all the pressing blocks 53 be at the left end of the well mouth, and the air bag 52 be at the right end of the well mouth.

[0039] At this time, the staff rotates the threaded rod 510, and makes the threaded rod 510 move downward in the process of rotating, so that the threaded rod 510 drives the mounting frame 56 to move downward, so that the clamping block 58 moves downward under the driving of the mounting frame 56, so that the clamping block 58 is in the same plane with the clamping hole 54.

[0040] Subsequently, the staff pushes the pressing block 53 to the right, so that each pressing block 53 moves to the right by different distances, and makes the rubber strip at the right end of the pressing block 53 fit the outer wall of the well mouth, so that the clamping block 58 is in the same plane with the clamping hole 54, so when the pressing block 53 moves from left to right, the inclined surface of the clamping block 58 is extruded and can move upward, and when the pressing block 53 stops being pushed, because it moves from right to left, the contact surface is the right side surface of the clamping block 58, and the right side surface of the clamping block 58 has no inclined angle, so the pressing block 53 cannot be reset.

[0041] At the same time, in the process of moving from left to right, the pressing block 53 can make the inner side of the well mouth fit the air bag 52, so as to ensure that the inner side of the well mouth fits the air bag 52, so as to ensure that the well mouth can be better fixed between the pressing block 53 and the air bag 52.

[0042] When the fixing is completed, the staff adjusts the angle of the movable pulley 42 according to the inclination angle of the cable in use.

[0043] When adjusting, the staff first pulls the plug 45 forward, when the plug 45 leaves the insertion hole 47, the staff moves the plug 45 according to the required angle, and makes the plug 45 move synchronously with the fixed plate 43, the rotating shaft 41 and the movable pulley 42 during the movement.

[0044] When moving to the appropriate position, the staff releases the plug 45, at this time, the plug 45 enters the insertion hole 47 under the elastic force of the spring 46, because the plug 45 is always subjected to the elastic force of the spring 46 during use, so even if slight vibration occurs outside, the plug 45 can still remain in the state of being inside the insertion hole 47.

[0045] At this time, when the cable enters and exits the wellhead, because it respectively contacts with the outer wall of the fixed pulley 2 and the movable pulley 42, the friction generated is rolling friction, so the friction is small, so the cable is not easy to wear, and the wear-proof effect is achieved.

[0046] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A petroleum wellhead cable protector device comprising a mounting frame (1), characterised in that: The inner side of the mounting frame (1) is rotationally connected with a fixed pulley (2), the inner wall of the mounting frame (1) is provided with a sliding groove (3), the inner side of the mounting frame (1) and the inside of the sliding groove (3) are jointly provided with a direction adjusting assembly (4), the lower left of the mounting frame (1) is provided with a fixing mechanism (5), the fixing mechanism (5) comprises a concave plate (51), the top end and the right end of the concave plate (51) are fixedly connected with the lower left end of the mounting frame (1), the inner wall of the concave plate (51) is fixedly connected with an air bag (52), the inner wall of the concave plate (51) is slidably connected with a pressing block (53), the top end of the pressing block (53) is fixedly connected with a clamping hole (54), the inner wall of the concave plate (51) above the pressing block (53) is provided with a sliding groove (55), the inner wall of the sliding groove (55) is slidably connected with a mounting frame (56), the bottom end of the mounting frame (56) is provided with a moving groove (57), the inner wall of the moving groove (57) is slidably connected with a clamping block (58), and the top end of the clamping block (58) is elastically connected with the inner wall of the moving groove (57) through a spring (59).

2. A petroleum wellhead cable protector apparatus as defined in claim 1, wherein: The top end of the mounting frame (56) is rotationally connected with a threaded rod (510), and the outer wall of the threaded rod (510) penetrates and is threadedly connected with the inner wall of the concave plate (51) above the sliding groove (55).

3. A petroleum wellhead cable protector apparatus as defined in claim 1, wherein: The direction adjusting assembly (4) comprises a rotating shaft (41), the rotating shaft (41) is arranged in the inside of the sliding groove (3), the outer wall of the rotating shaft (41) is rotationally connected with a movable pulley (42), the front end of the rotating shaft (41) is fixedly connected with a fixed plate (43), the inner wall of the fixed plate (43) is provided with a movable groove (44), the inner wall of the movable groove (44) is slidably connected with a plug (45), the front end of the plug (45) is elastically connected with the inner wall of the movable groove (44) through a spring (46), and the front end of the mounting frame (1) is provided with a plug hole (47).

4. A petroleum wellhead cable protector apparatus as defined in claim 1, wherein: The number of the fixed pulleys (2) is two, and the two fixed pulleys (2) are arranged in the same vertical plane.

5. A petroleum wellhead cable protector apparatus as defined in claim 1, wherein: The shape of the sliding groove (3) is arc-shaped, and the front end of the mounting frame (1) outside the sliding groove (3) is provided with a scale line.

6. A petroleum wellhead cable protector apparatus as defined in claim 3, wherein: The shape of the fixed plate (43) is circular, and the front end of the fixed plate (43) is provided with a triangular arrow.

7. A petroleum wellhead cable protector apparatus as defined in claim 1, wherein: The material of the air bag (52) is rubber, and the inside of the air bag (52) is hollow.

8. A petroleum wellhead cable protector apparatus as defined in claim 3, wherein: The shape of the plug hole (47) is that a plurality of cylindrical recesses with diameters matching the plug (45) are connected, and the plurality of cylindrical recesses are arranged in a circumferential array with the corresponding center of the sliding groove (3).

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