Convenient underground liquid injection hole screen pipe position detection system

Abstract

The utility model relates to the field of underground equipment detection, in particular to a convenient underground liquid injection hole sieve tube position detection system, which comprises a ground measurement host, a display, a logging cable winch and a first fixing block, a logging cable is wound on the surface of the logging cable winch, the top of the first fixing block is fixedly connected with a second fixing block, and the second fixing block is fixedly connected with the display. And an inner cavity of the second fixing block is rotationally connected with wellhead pulley equipment. When the threaded block moves downwards, through transmission of the connecting block, the first protruding block and the second protruding block, the three adjusting blocks expand outwards and make stable contact with a well mouth and a supporting face, and therefore the stability of the well mouth pulley device in the placing process is improved, and the detection error caused by shaking or vibration of the measuring head is reduced; due to expansion of the adjusting block, the stability is enhanced, the measuring head is effectively prevented from colliding with the well wall in the well logging process, and the service life of the measuring head is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of downhole equipment detection, especially relates to a convenient downhole liquid injection hole screen pipe position detection system. BACKGROUND

[0002] The screen pipe position detection device is a device for determining the accurate position of the screen pipe in the downhole or a specific environment, which can determine whether the current position of the screen pipe reaches the expected position, and is mainly applied to the fields of oil fields, chemical industry, oil transportation and radioactive mineral exploitation, wherein the downhole tool detection of the oil field is an important application scenario.

[0003] The downhole screen pipe, also known as the water filter pipe, is widely used in the sand prevention industry of oil, gas and water wells, especially in the water well industry, and the main function of the screen pipe is to filter and remove impurities and solid particles in the fluid, so as to ensure the purity and quality of the fluid, which plays a role in blocking the passage of solid particles and only allows the fluid to pass through, thereby realizing the effect of separation and filtration. Different screen hole sizes are usually used for screen pipes to meet the filtering needs of different particle sizes. The main purpose of the downhole screen pipe position detection is to determine the exact position of the screen pipe in the downhole and check whether it has damage or leakage, which is crucial for ensuring normal production and maintenance.

[0004] The existing downhole liquid injection hole screen pipe position detection device may cause the wellhead pulley device to overturn due to collision or vibration during work, thereby increasing the detection error of the measuring head and reducing the detection accuracy. At the same time, it also causes the measuring head to collide with the well wall, thereby reducing the service life of the measuring head. UTILITY MODEL CONTENTS

[0005] In view of the above problems, the utility model provides a convenient downhole liquid injection hole screen pipe position detection system, which comprises a ground measurement host, a display, a logging cable winch and a first fixed block, the surface of the logging cable winch is wound with a logging cable, the top of the first fixed block is fixedly connected with a second fixed block, the inner cavity of the second fixed block is rotatably connected with a wellhead pulley device, the logging cable is located on the surface of the wellhead pulley device, the bottom of the first fixed block is provided with an adjusting mechanism, the bottom of the first fixed block is provided with a second groove, one end of the logging cable is fixedly connected with a square plate, the bottom of the square plate is provided with a measuring head, the surface of the measuring head is fixedly connected with a first limiting block, the two sides of the bottom of the square plate are fixedly connected with a second limiting block, and the inner cavity of the second limiting block is provided with a locking mechanism.

[0006] Further, the adjusting mechanism comprises three first grooves formed in the bottom of the first fixed block, the inner cavities of the first grooves are rotationally connected with adjusting blocks, the surfaces of the adjusting blocks are sleeved with sleeve blocks, one side of the sleeve block is fixedly connected with a first protruding block, the two sides of the first protruding block are rotationally connected with connecting blocks, the opposite sides of the two connecting blocks are rotationally connected with second protruding blocks, the inner cavities of the second grooves are fixedly connected with motors, the output ends of the motors are transmissionally connected with threaded rods, the surfaces of the threaded rods are threadedly connected with threaded blocks, and one side of the second protruding block is fixedly connected with the threaded block.

[0007] Further, the locking mechanism comprises a moving block slidingly connected in the inner cavity of the second limiting block, one side of the moving block is fixedly connected with a spring, one end of the spring is fixedly connected with the second limiting block, one side of the moving block is fixedly connected with a clamping block, one side of the first limiting block is formed with a clamping groove, and one side of the clamping block penetrates into the inner cavity of the clamping groove.

[0008] Further, one side of the moving block is fixedly connected with a connecting plate, one side of the connecting plate penetrates to the outside of the second limiting block and is fixedly connected with a handle.

[0009] Further, the top and the bottom of the inner cavity of the second limiting block are formed with sliding grooves, the inner cavities of the sliding grooves are slidingly connected with sliding blocks, and one side of the sliding block is fixedly connected with the moving block.

[0010] Further, one end of the threaded rod is fixedly connected with a circular block, and the diameter of the circular block is greater than that of the threaded rod.

[0011] Further, one end of the adjusting block is rotationally connected with a supporting leg, and the bottom of the supporting leg is provided with an antiskid pad.

[0012] The beneficial effects of the utility model are:

[0013] 1、 when the threaded block moves downward in the device, the transmission of the connecting block, the first protruding block and the second protruding block makes the three adjusting blocks expand to the outside, forms stable contact with the well mouth and the supporting surface, thereby improving the stability of the well mouth pulley equipment when placing, reducing the detection error of the measuring head caused by shaking or vibration, thereby improving the accuracy of detection, the expansion of the adjusting block not only enhances the stability, but also effectively prevents the measuring head from colliding with the well wall during logging, prolongs the service life of the measuring head, the user only needs to move the handle, can easily and conveniently disassemble the measuring head from the device, greatly simplifies the disassembly process, improves the convenience of operation, since the measuring head can be conveniently disassembled, the user can individually store or maintain it at any time according to the need, increases the flexibility of use.

[0014] 2、The device is used with the cooperation of the connecting plate and the handle, which plays a role in moving the moving block, so that the object card block moves to the inner cavity of the second limiting block, and through the cooperation of the sliding groove and the sliding block, the moving block is limited, improving the stability of the moving block during movement, through the setting of the round block, the threaded block is limited, preventing the threaded block from moving out of the surface of the threaded rod, through the cooperation of the supporting leg and the protection block, the friction between the supporting leg and the bottom is increased, and the stability of the wellhead pulley equipment during placement is improved.

[0015] Other features and advantages of the present application will be described in the following description, and some of them will become apparent from the description, or will be understood from the practice of the present application. The purpose and other advantages of the present application can be achieved and obtained by the structure indicated in the description, claims and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0017] Figure 1 The structure of the structure is shown according to the embodiment of the present application;

[0018] Figure 2 The structure of the adjusting mechanism is shown according to the embodiment of the present application;

[0019] Figure 3 The structure of the adjusting mechanism is shown according to the embodiment of the present application; Figure 1 ;

[0020] Figure 4 The structure of the adjusting mechanism is shown according to the embodiment of the present application; Figure 2 ;

[0021] Figure 5 The structure of the adjusting mechanism is shown according to the embodiment of the present application;

[0022] In the figure: 1, ground measurement host; 2, display; 3, logging cable winch; 4, logging cable; 5, first fixed block; 6, second fixed block; 7, wellhead pulley device; 8, adjusting mechanism; 81, first groove; 82, adjusting block; 83, sleeve block; 84, first protrusion; 85, connecting block; 86, second protrusion; 87, motor; 88, threaded rod; 89, threaded block; 9, second groove; 10, square plate; 11, measuring head; 12, first limit block; 13, second limit block; 14, locking mechanism; 141, moving block; 142, spring; 143, clamping block; 144, clamping groove; 15, connecting plate; 16, handle; 17, sliding groove; 18, sliding block; 19, round block; 20, leg. DETAILED DESCRIPTION

[0023] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme 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 some embodiments but not all embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0024] The embodiment of the present application provides a convenient downhole liquid injection hole screen pipe position detection system, which comprises a ground measurement host 1, a display 2, a logging cable winch 3 and a first fixed block 5. Figures 1-5 As shown in the figure.

[0025] The surface of the logging cable winch 3 is wound with a logging cable 4, the top of the first fixed block 5 is fixedly connected with a second fixed block 6, the inner cavity of the second fixed block 6 is rotatably connected with a wellhead pulley device 7, the logging cable 4 is located on the surface of the wellhead pulley device 7, the bottom of the first fixed block 5 is provided with an adjusting mechanism 8, the bottom of the first fixed block 5 is provided with a second groove 9, one end of the logging cable 4 is fixedly connected with a square plate 10, the bottom of the square plate 10 is provided with a measuring head 11, the surface of the measuring head 11 is fixedly connected with a first limit block 12, the bottom of the square plate 10 is fixedly connected with a second limit block 13 on both sides, and the inner cavity of the second limit block 13 is provided with a locking mechanism 14.

[0026] The adjusting mechanism 8 comprises three first grooves 81 opened in the bottom of the first fixed block 5, as shown in the figure. Figures 1-5 As shown in the figure.

[0027] The inner cavity of the first groove 81 is rotationally connected with an adjusting block 82, the surface of the adjusting block 82 is sleeved with a sleeve block 83, one side of the sleeve block 83 is fixedly connected with a first protruding block 84, both sides of the first protruding block 84 are rotationally connected with a connecting block 85, the opposite side of the two connecting blocks 85 is rotationally connected with a second protruding block 86, the inner cavity of the second groove 9 is fixedly connected with a motor 87, the output end of the motor 87 is drivingly connected with a threaded rod 88, the surface of the threaded rod 88 is threadedly connected with a threaded block 89, one side of the second protruding block 86 is fixedly connected with the threaded block 89.

[0028] Specifically, when the threaded block 89 moves downward, through the transmission of the connecting block 85 and the first protruding block 84 and the second protruding block 86, the three adjusting blocks 82 expand outward, forming stable contact with the wellhead and the supporting surface, thereby improving the stability of the wellhead pulley device 7 when placed, reducing the detection error of the measuring head 11 caused by shaking or vibration, thereby improving the accuracy of detection, the expansion of the adjusting block 82 not only enhances the stability, but also effectively prevents the measuring head 11 from colliding with the well wall during logging, prolonging the service life of the measuring head 11.

[0029] The locking mechanism 14 comprises a moving block 141 slidingly connected in the inner cavity of the second limiting block 13, as shown in Figures 1-5

[0030] One side of the moving block 141 is fixedly connected with a spring 142, one end of the spring 142 is fixedly connected with the second limiting block 13, one side of the moving block 141 is fixedly connected with a clamping block 143, one side of the first limiting block 12 is provided with a clamping groove 144, one side of the clamping block 143 penetrates into the inner cavity of the clamping groove 144.

[0031] Specifically, the user only needs to move the handle 16, and the measuring head 11 can be easily and conveniently detached from the device, greatly simplifying the disassembly process and improving the convenience of operation. Since the measuring head 11 can be easily detached, the user can individually store or maintain it at any time according to needs, increasing the flexibility of use.

[0032] One side of the moving block 141 is fixedly connected with a connecting plate 15, as shown in Figures 1-5

[0033] ​​One side of the connecting plate 15 is connected with the handle 16 through the outside of the second limiting block 13, the top and bottom of the inner cavity of the second limiting block 13 are provided with the sliding groove 17, the inner cavity of the sliding groove 17 is slidably connected with the sliding block 18, one side of the sliding block 18 is fixedly connected with the moving block 141, one end of the threaded rod 88 is fixedly connected with the round block 19, the diameter of the round block 19 is greater than the diameter of the threaded rod 88, one end of the adjusting block 82 is rotatably connected with the supporting leg 20, and the bottom of the supporting leg 20 is provided with the antiskid pad.

[0034] Specifically, the cooperation of the connecting plate 15 and the handle 16 can move the moving block 141, so that the object card block 143 moves to the inner cavity of the second limiting block 13, the cooperation of the sliding groove 17 and the sliding block 18 can limit the movement of the moving block 141, thereby improving the stability of the moving block 141 during movement, the round block 19 can limit the movement of the threaded block 89, thereby preventing the threaded block 89 from moving out of the surface of the threaded rod 88, and the cooperation of the supporting leg 20 and the protection block can increase the friction between the supporting leg 20 and the bottom, thereby improving the stability of the wellhead pulley device 7 during placement.

[0035] The working principle of the convenient downhole liquid injection hole screen pipe position detection system is as follows:

[0036] When the device is used, the motor 87 is started, the output end of the motor 87 drives the threaded rod 88 to rotate, the threaded rod 88 drives the threaded block 89 to move downwards, the threaded block 89 drives the second protrusion 86 to move downwards during movement, the second protrusion 86 drives one end of the connecting block 85 to move, so that the other end of the connecting block 85 drives the first protrusion 84 to move outward, the first protrusion 84 drives the adjusting block 82 to make arc movement in the inner cavity of the first recess 81 through the sleeve block 83, so that the three adjusting blocks 82 expand outward, when the adjusting block 82 is adjusted to a certain angle, it can be placed in the specified position, thereby improving the stability of the logging cable 4 when sliding on the surface of the wellhead pulley device 7.

[0037] The logging cable winch 3 uses a continuously variable speed electric winch to measure the length of the logging cable 4, which is up to 1000 meters, and the maximum logging depth is greater than 900 meters. The logging cable 4 is provided with a measuring head 11 at the front end. The measuring head 11 encodes real-time depth information of the measuring head 11 during logging and transmits it to the ground measurement host 1 for measurement. The logging cable winch 3 is provided with a cable current collector ring to ensure that the power supply for the measuring head 11 and the measurement signal can be continuously transmitted. The ground measurement host 1 is used to control the logging cable winch 3, supply power to the measuring head 11, decode the measurement data of the measuring head 11, and comprehensively collect and continuously transmit various information and data to the display 2. The wellhead pulley device 7 is used to safely guide the measuring head 11 and the logging cable 4 into the wellbore. The field collection display 2 is connected to the ground measurement host 1 through a network communication port or a wireless network card to complete the tasks of data collection, processing and recording. The measuring head 11 can simultaneously measure the mine layer characteristic curve and the current curve.

[0038] When the measuring head 11 is not in use, the moving handle 16 is moved, which drives the connecting plate 15 to move, and the connecting plate 15 drives the moving block 141 to move. When the moving block 141 moves, it will drive the spring 142 to compress. During the movement of the moving block 141, the clamping block 143 will be moved out of the inner cavity of the clamping groove 144, so that the clamping block 143 moves to the inner cavity of the second limiting block 13. When the clamping block 143 moves to the inner cavity of the second limiting block 13, the measuring head 11 can be removed, which is convenient for the user to disassemble.

[0039] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently. These modifications or replacements do not change the essence of the corresponding technical solutions, and do not deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A convenient downhole liquid injection hole screen pipe position detection system, comprising a ground measurement host (1), a display (2), a logging cable winch (3) and a first fixed block (5), characterized in that: The surface of the logging cable winch (3) is wound with a logging cable (4), the top of the first fixed block (5) is fixedly connected with a second fixed block (6), the inner cavity of the second fixed block (6) is rotatably connected with a wellhead pulley device (7), the logging cable (4) is located on the surface of the wellhead pulley device (7), the bottom of the first fixed block (5) is provided with an adjusting mechanism (8), the bottom of the first fixed block (5) is provided with a second groove (9), one end of the logging cable (4) is fixedly connected with a square plate (10), the bottom of the square plate (10) is provided with a measuring head (11), the surface of the measuring head (11) is fixedly connected with a first limiting block (12), the two sides of the bottom of the square plate (10) are fixedly connected with a second limiting block (13), and the inner cavity of the second limiting block (13) is provided with a locking mechanism (14).

2. A convenient system for detecting the position of a screen pipe of a liquid injection hole in a well according to claim 1, characterized in that: The adjusting mechanism (8) comprises three first grooves (81) formed in the bottom of the first fixed block (5), the inner cavity of the first groove (81) is rotatably connected with an adjusting block (82), the surface of the adjusting block (82) is sleeved with a sleeve block (83), one side of the sleeve block (83) is fixedly connected with a first protruding block (84), the two sides of the first protruding block (84) are rotatably connected with a connecting block (85), the opposite sides of the two connecting blocks (85) are rotatably connected with a second protruding block (86), the inner cavity of the second groove (9) is fixedly connected with a motor (87), the output end of the motor (87) is drivingly connected with a threaded rod (88), the surface of the threaded rod (88) is threadedly connected with a threaded block (89), and one side of the second protruding block (86) is fixedly connected with the threaded block (89).

3. A convenient system for detecting the position of a screen pipe of a liquid injection hole in a well according to claim 1, characterized in that: The locking mechanism (14) comprises a moving block (141) slidably connected in the inner cavity of the second limiting block (13), one side of the moving block (141) is fixedly connected with a spring (142), one end of the spring (142) is fixedly connected with the second limiting block (13), one side of the moving block (141) is fixedly connected with a clamping block (143), one side of the first limiting block (12) is provided with a clamping groove (144), and one side of the clamping block (143) penetrates into the inner cavity of the clamping groove (144).

4. A convenient system for detecting the position of a screen pipe of a liquid injection hole in a downhole according to claim 3, characterized in that: One side of the moving block (141) is fixedly connected with a connecting plate (15), one side of the connecting plate (15) penetrates to the outside of the second limiting block (13) and is fixedly connected with a handle (16).

5. A convenient system for detecting the position of a screen pipe in a liquid injection hole in a well according to claim 3, characterized in that: The top and the bottom of the inner cavity of the second limiting block (13) are provided with a sliding groove (17), the inner cavity of the sliding groove (17) is slidably connected with a sliding block (18), and one side of the sliding block (18) is fixedly connected with the moving block (141).

6. A convenient system for detecting the position of a screen in a fluid injection hole in a well according to claim 2, characterized in that: One end of the threaded rod (88) is fixedly connected with a circular block (19), and the diameter of the circular block (19) is greater than the diameter of the threaded rod (88).

7. A convenient system for detecting the position of a screen pipe in a liquid injection hole in a well according to claim 2, characterized in that: One end of the adjusting block (82) is rotatably connected with a supporting leg (20), and the bottom of the supporting leg (20) is provided with an anti-skid pad.

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