Polarization potential measuring equipment for directional drilling pipeline

Abstract

The utility model relates to the field of pipeline cathode protection, in particular to directional drilling pipeline polarization potential measuring equipment, which comprises a bottom plate; the front fixed limiting assembly is mounted at one end of the bottom plate; the rear movable limiting assembly is mounted at the other end of the bottom plate; and the multi-channel potential measuring instrument is slidably clamped on the bottom plate, the front end of the multi-channel potential measuring instrument is limited in the front fixed limiting assembly, and the rear end of the multi-channel potential measuring instrument is limited in the rear movable limiting assembly. According to the utility model, the front end of the multi-channel potential measuring instrument is limited through the rear movable limiting assembly arranged at the other end of the bottom plate; meanwhile, the front end of the multi-channel potential measuring instrument is limited through the front fixed limiting assembly arranged at one end of the bottom plate, so that a connecting wire led out of the front end of the multi-channel potential measuring instrument is prevented from being separated from the multi-channel potential measuring instrument, and the multi-channel potential measuring instrument can normally measure in the directional drilling pipeline; the problem that the cathode protection potential of the centering drill crossing section pipeline cannot be measured through a conventional method is solved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline cathodic protection, specifically to a polarization potential measuring device for directional drilling pipelines. Background Technology

[0002] Directional drilling (DDR) is a pipeline construction technique used in the engineering industry, primarily for oil, natural gas, and some municipal pipelines. It involves large DDR rigs performing positioning drilling, borehole reaming, cleaning, and pipeline pullback before pipeline construction. In pipeline construction, due to limitations imposed by terrain and other natural conditions, DDR is often used when pipelines cross large rivers, highways, or other obstacles. However, DDR has some drawbacks. For example, it cannot prevent the separation of the conductor and polarization potential measuring equipment. During use, the conductor is easily pulled apart, leading to separation and affecting the normal measurement of polarization potential. When using polarization potential measuring equipment in DDR crossing river pipelines, the cathodic protection potential of the river pipeline cannot be tested using conventional methods, rendering the equipment unusable and requiring manual on-site testing with a multimeter. Utility Model Content

[0003] This invention provides a polarization potential measuring device for directional drilling pipelines, which solves the problem that the cathodic protection potential of the pipeline crossing section of the centering drill cannot be measured by conventional methods by preventing the separation of the conductor and the polarization potential measuring device.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A polarization potential measuring device for directional drilling pipelines, comprising:

[0005] Base plate;

[0006] A front fixed limiting component is installed at one end of the base plate;

[0007] A rear movable limiting component is installed at the other end of the base plate;

[0008] The multi-channel potential measuring instrument is slidably attached to the base plate, with its front end limited in the front fixed limiting component and its rear end limited in the rear movable limiting component.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, the base plate is provided with limiting blocks on both sides; the bottom of the multi-channel potential measuring instrument is provided with limiting grooves that match the limiting blocks on both sides; the multi-channel potential measuring instrument is slidably engaged with the limiting blocks on the base plate through the limiting grooves at the bottom.

[0011] Furthermore, the multi-channel potential measuring instrument is equipped with a control console on its top, and a display screen is located on the top of the multi-channel potential measuring instrument and in front of the control console.

[0012] Furthermore, the multi-channel potential measuring instrument has multiple first slots at its front end, each first slot having a positioning slot and a matching positioning block. Each positioning block has a connecting wire and an elastic plate, and the elastic plate has a protrusion that matches the positioning slot. Each positioning block is engaged with the positioning slot in the corresponding first slot through the protrusion on the elastic plate.

[0013] Furthermore, there are four first slots, which are arranged vertically and horizontally at the front end of the multi-channel potential measuring instrument.

[0014] Furthermore, the front fixed limiting assembly includes a limiting pressure plate fixedly installed on one end of the base plate. The limiting pressure plate is provided with a plurality of second slots, each of which is provided with an elastic clamping plate. Each of the elastic clamping plates is provided with a locking nut. Each of the connecting wires passes through the corresponding elastic clamping plate and is fastened by the locking nut.

[0015] Furthermore, the front fixed limiting assembly also includes a support plate, one end of which is vertically fixed to one end of the base plate; the limiting pressure plate has an H-shaped structure, and the crossbar of the limiting pressure plate is fixedly installed on the other end of the support plate; both ends of the two vertical bars of the limiting pressure plate are provided with the second slot.

[0016] Furthermore, the multi-channel potential measuring instrument has a connector at its rear end, which is confined within the rear movable limiting component.

[0017] Furthermore, the rear movable limiting assembly includes a movable insert plate, the bottom of which is detachably mounted on the other end of the base plate. The top of the movable insert plate is provided with a threaded hole, and a control bolt is inserted into the threaded hole. A connecting plate is provided on one end of the control bolt, and the connecting plate is rotatably inserted into the connecting seat.

[0018] Furthermore, a positioning socket is provided on the other end of the base plate; a positioning block is provided at the bottom of the movable insert plate, and elastic insert plates are provided at the bottom of the movable insert plate and on both sides of the positioning block; the movable insert plate is detachably snapped into the positioning socket at the other end of the base plate through the positioning block and the elastic insert plates.

[0019] The beneficial effects of this utility model are as follows: In the polarization potential measuring device for directional drilling pipelines of this utility model, the multi-channel potential measuring instrument is slidably clipped onto the base plate to limit its sliding movement; the front end of the multi-channel potential measuring instrument is limited by a rear movable limiting component set at the other end of the base plate; at the same time, the front end of the multi-channel potential measuring instrument is limited by a front fixed limiting component set at one end of the base plate to prevent the connecting wires led out from the front end of the multi-channel potential measuring instrument from separating from the multi-channel potential measuring instrument, so that the multi-channel potential measuring instrument can be normally measured in the directional drilling pipeline, solving the problem that the cathodic protection potential of the pipeline crossing section of the centering drill cannot be measured by conventional methods. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a directional drilling pipeline polarization potential measuring device according to the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the multi-channel potential measuring instrument and the base plate in the directional drilling pipeline polarization potential measuring device of this utility model;

[0022] Figure 3 This is a partial exploded structural diagram of the multi-channel potential measuring instrument in a directional drilling pipeline polarization potential measuring device of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the multi-channel potential measuring instrument in the directional drilling pipeline polarization potential measuring device of this utility model;

[0024] Figure 5 This is an exploded structural diagram of the front fixed limiting component and the rear movable limiting component in a directional drilling pipeline polarization potential measuring device of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Base plate; 2. Multi-channel potential meter; 3. Limiting block; 4. Limiting groove; 5. Control console; 6. Display screen; 7. First slot; 8. Positioning slot; 9. Positioning insert; 10. Connecting wire; 11. Elastic clamping plate; 12. Protrusion; 13. Limiting pressure plate; 14. Second slot; 15. Elastic clamping plate; 16. Locking nut; 17. Support plate; 18. Connecting seat; 19. Movable insert; 20. Threaded hole; 21. Control bolt; 22. Connecting plate; 23. Positioning socket; 24. Positioning block; 25. Elastic insert. Detailed Implementation

[0027] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0028] like Figures 1 to 5 As shown, a directional drilling pipeline polarization potential measuring device includes:

[0029] Base plate 1;

[0030] A front fixed limiting component is installed at one end of the base plate 1;

[0031] A rear movable limiting component is installed at the other end of the base plate 1;

[0032] The multi-channel potential measuring instrument 2 is slidably attached to the base plate 1, with its front end limited in the front fixed limiting assembly and its rear end limited in the rear movable limiting assembly.

[0033] In this utility model of a polarization potential measuring device for directional drilling pipelines, a multi-channel potential measuring instrument 2 is slidably clipped onto a base plate 1 to limit its movement. A rear movable limiting component located at the other end of the base plate 1 limits the front end of the multi-channel potential measuring instrument 2. Simultaneously, a front fixed limiting component located at one end of the base plate 1 limits the front end of the multi-channel potential measuring instrument 2 to prevent the connecting wires leading from the front end of the multi-channel potential measuring instrument 2 from separating from it. This allows the multi-channel potential measuring instrument 2 to perform normal measurements in the directional drilling pipeline, solving the problem that the cathodic protection potential of the pipeline crossing section during centering drilling cannot be measured using conventional methods.

[0034] In this embodiment: the base plate 1 is provided with limiting blocks 3 on both sides; the multi-channel potential measuring instrument 2 is provided with limiting grooves 4 on both sides of the bottom that match the limiting blocks 3; the multi-channel potential measuring instrument 2 is slidably engaged with the limiting blocks 3 on the base plate 1 through the limiting grooves 4 at the bottom.

[0035] In this embodiment: a control console 5 is provided on the top of the multi-channel potential measuring instrument 2, and a display screen 6 is provided on the top of the multi-channel potential measuring instrument 2 and in front of the control console 5. The front end of the multi-channel potential measuring instrument 2 has multiple first slots 7, each first slot 7 having a positioning slot 8, and each first slot 7 being equipped with a matching positioning block 9. Each positioning block 9 is provided with a connecting line 10 and an elastic plate 11. The elastic plate 11 has a protrusion 12 that matches the positioning slot 8. Each positioning block 9 is engaged with the corresponding positioning slot 8 in the first slot 7 by the protrusion 12 on the elastic plate 11. Specifically, there are four first slots 7, arranged vertically and horizontally at the front end of the multi-channel potential measuring instrument 2.

[0036] In this embodiment: the front fixing and limiting assembly includes a limiting pressure plate 13 fixedly installed on one end of the base plate 1. The limiting pressure plate 13 is provided with a plurality of second slots 14, each of which is provided with an elastic clamping plate 15. Each elastic clamping plate 15 is provided with a locking nut 16. Each connecting wire 10 passes through the corresponding elastic clamping plate 15 and is fastened by the locking nut 16. The front fixing and limiting assembly also includes a support plate 17, one end of which is vertically fixed to one end of the base plate 1. The limiting pressure plate 13 has an H-shaped structure, and the horizontal bar of the limiting pressure plate 13 is fixedly installed on the other end of the support plate 17. The two ends of the two vertical bars of the limiting pressure plate 13 are provided with the second slots 14.

[0037] In this embodiment: the rear end of the multi-channel potential measuring instrument 2 is provided with a connecting seat 18, which is limited in the rear movable limiting assembly. The rear movable limiting assembly includes a movable insert plate 19, the bottom of which is detachably mounted on the other end of the base plate 1. The top of the movable insert plate 19 is provided with a threaded hole 20, and a control bolt 21 is inserted into the threaded hole 20. A connecting plate 22 is provided on one end of the control bolt 21, and the connecting plate 22 is rotatably inserted into the connecting seat 18. The other end of the base plate 1 is provided with a positioning socket 23; the bottom of the movable insert plate 19 is provided with a positioning block 24, and elastic insert plates 25 are provided on the bottom of the movable insert plate 19 and on both sides of the positioning block 24; the movable insert plate 19 is detachably snapped into the positioning socket 23 at the other end of the base plate 1 through the positioning block 24 and the elastic insert plates 25.

[0038] This invention uses a limiting block 3 on the base plate 1 to cooperate with a limiting groove 4 at the bottom of the multi-channel potential measuring instrument 2 to slide and limit the instrument 2. The limiting pressure plate 13 and elastic clamp 15 in the front fixed limiting assembly limit the positioning plug 9 and connecting wire 10 at the front end of the multi-channel potential measuring instrument 2. After the connecting wire 10 extends from the elastic clamp 15, the locking nut 16 is rotated to lock the connection position of the connecting wire 10 in the elastic clamp 15, preventing the connecting wire 10 from separating from the multi-channel potential measuring instrument 2. This allows the multi-channel potential measuring instrument 2 to measure normally in directional drilling pipelines, solving the problem that the cathodic protection potential of the pipeline crossing section of the centering drill cannot be measured by conventional methods, and avoiding the difficulty of long-term on-site testing using a multimeter.

[0039] This invention can be used to measure the cathodic protection polarization potential of pipelines crossing directional drilling sections in long-distance oil and gas pipelines.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for measuring the polarization potential of directional drilling pipelines, characterized in that, include: Base plate (1); A front fixed limiting component is installed at one end of the base plate (1); A rear movable limiting component is installed at the other end of the base plate (1); The multi-channel potential measuring instrument (2) is slidably attached to the base plate (1), with its front end limited in the front fixed limit assembly and its rear end limited in the rear movable limit assembly.

2. The directional drilling pipeline polarization potential measuring device according to claim 1, characterized in that, The base plate (1) is provided with limiting blocks (3) on both sides; the bottom of the multi-channel potential measuring instrument (2) is provided with limiting grooves (4) that match the limiting blocks (3); the multi-channel potential measuring instrument (2) is slidably connected to the limiting blocks (3) of the base plate (1) through the limiting grooves (4) at the bottom.

3. The directional drilling pipeline polarization potential measuring device according to claim 1, characterized in that, The multi-channel potential measuring instrument (2) has a control console (5) on top, and a display screen (6) is located on the top of the multi-channel potential measuring instrument (2) and in front of the control console (5).

4. The directional drilling pipeline polarization potential measuring device according to claim 1, characterized in that, The multi-channel potential measuring instrument (2) has multiple first slots (7) at its front end. Each first slot (7) is provided with a positioning slot (8). Each first slot (7) is equipped with a matching positioning block (9). Each positioning block (9) is provided with a connecting line (10) and an elastic plate (11). The elastic plate (11) is provided with a protrusion (12) that matches the positioning slot (8). Each positioning block (9) is engaged in the positioning slot (8) in the corresponding first slot (7) by the protrusion (12) on the elastic plate (11).

5. The directional drilling pipeline polarization potential measuring device according to claim 4, characterized in that, There are four first slots (7), and the four first slots (7) are arranged vertically and horizontally at the front end of the multi-channel potential measuring instrument (2).

6. The directional drilling pipeline polarization potential measuring device according to claim 4, characterized in that, The front fixed limiting assembly includes a limiting pressure plate (13) fixedly installed on one end of the base plate (1). The limiting pressure plate (13) is provided with a plurality of second slots (14). Each second slot (14) is provided with an elastic clamp (15). Each elastic clamp (15) is provided with a locking nut (16). Each connecting wire (10) passes through the corresponding elastic clamp (15) and is fastened by the locking nut (16).

7. The directional drilling pipeline polarization potential measuring device according to claim 6, characterized in that, The front fixed limiting assembly also includes a support plate (17), one end of which is vertically fixed to one end of the base plate (1); the limiting pressure plate (13) has an H-shaped structure, and the crossbar of the limiting pressure plate (13) is fixedly installed on the other end of the support plate (17); the two ends of the two vertical bars of the limiting pressure plate (13) are provided with the second slot (14).

8. The directional drilling pipeline polarization potential measuring device according to claim 1, characterized in that, The multi-channel potential measuring instrument (2) has a connector (18) at its rear end, which is limited in the rear movable limit assembly.

9. The directional drilling pipeline polarization potential measuring device according to claim 8, characterized in that, The rear movable limiting assembly includes a movable insert plate (19), the bottom of which is detachably mounted on the other end of the base plate (1). The top of the movable insert plate (19) is provided with a threaded hole (20), and a control bolt (21) is inserted into the threaded hole (20). A connecting plate (22) is provided on one end of the control bolt (21), and the connecting plate (22) is rotatably inserted into the connecting seat (18).

10. The directional drilling pipeline polarization potential measuring device according to claim 9, characterized in that, The other end of the base plate (1) is provided with a positioning socket (23); the bottom of the movable insert plate (19) is provided with a positioning block (24), and the bottom of the movable insert plate (19) and on both sides of the positioning block (24) are provided with elastic insert plates (25); the movable insert plate (19) is detachably snapped into the positioning socket (23) at the other end of the base plate (1) through the positioning block (24) and the elastic insert plates (25).

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