Measuring device for engineering geophysical well logging

Abstract

The utility model discloses a measuring device for detecting engineering objects in wells, which comprises a box body, a traction rope winding roller, a cable winding roller, a support plate and a driving device; the box body is provided with a traction rope winding roller and a cable winding roller arranged horizontally from top to bottom in sequence, the traction rope winding roller and the cable winding roller are respectively rotatably connected with the inner wall of the box body, a traction rope with scale lines is wound around the traction rope winding roller, a cable is wound around the cable winding roller, a traction rope outlet matching the traction rope and a cable outlet matching the cable are respectively provided at the bottom end of the box body, the traction rope passes through the traction rope outlet and is fixedly connected with the top end of the support plate, the cable passes through the cable outlet and is fixedly connected with a measuring probe, and the measuring probe is fixedly connected with one side of the support plate; the driving device is fixed on the outer wall of the box body, one end of the traction rope winding roller passes through the box body and is fixedly connected with the output end of the driving device, and the traction rope winding roller and the cable winding roller are transmission-connected.

Description

Technical Field

[0001] The utility model relates to the technical field of geological detection, in particular to a measuring device for engineering object detection wells. Background Art

[0002] Geophysical logging is the application of geophysical methods to measure various physical information of rock formations in wells, study drilling geological profiles of oil and gas fields, coal fields, etc., and measure geophysical parameters such as conductivity, acoustic properties, radioactivity, and electrochemical properties of rock formations along the measuring well profile through special downhole instruments, thereby providing corresponding formation information for engineering surveys. Since different projects have different requirements for test depths, the depth range of measuring wells is very large, ranging from only tens of meters for shallow ones to thousands of meters for deep ones. Since the environment in the measuring well is dark, muddy, humid, high temperature, and high pressure, it is invisible to the naked eye, so measuring equipment is needed to measure the rock formation characteristics in the measuring well.

[0003] At present, the commonly used measurement method is the logging vehicle. The logging vehicle lowers the cable to the depth mark on the cable. During the lowering process, the cable comes into contact with the well wall and sticks to sand and gravel, causing wear. The drilling fluid in the drilling is also extremely corrosive to the cable, so the cable needs to be replaced from time to time. At the same time, for drilling in remote test environments, the use of logging vehicles is limited and the equipment is not easy to transport. Utility Model Content

[0004] The utility model aims to provide a measuring device for engineering object well detection.

[0005] The utility model is implemented by the following technical scheme: a measuring device for engineering geophysical well detection, which includes a box body, a traction rope winding roller, a cable winding roller, a support plate, and a driving device;

[0006] The inside of the box is provided with the horizontally arranged traction rope winding roller and the cable winding roller in sequence from top to bottom, the traction rope winding roller and the cable winding roller are respectively rotatably connected to the inner wall of the box, a traction rope with scale lines is wound around the traction rope winding roller, and a cable is wound around the cable winding roller, a traction rope outlet matching the traction rope and a cable outlet matching the cable are respectively opened at the bottom end of the box, the traction rope passes through the traction rope outlet and is fixedly connected to the top end of the support disk, the cable passes through the cable outlet and is fixedly connected to the measuring probe, and the measuring probe is fixedly connected to one side of the support disk;

[0007] The driving device is fixed on the outer wall of the box body, one end of the traction rope winding roller passes through the box body and is fixedly connected to the output end of the driving device, and the traction rope winding roller is transmission-connected to the cable winding roller.

[0008] Furthermore, the two sides of the box body are respectively fixed with the horizontally arranged telescopic devices, and the telescopic ends of the telescopic devices are fixed with the vertically arranged inserting teeth.

[0009] Furthermore, a counterweight is fixed to the bottom end of the support plate.

[0010] Furthermore, a vertically arranged guide tube is fixed to the traction rope outlet, the traction rope is passed through the guide tube, a first annular cleaning brush is fixed to the bottom end of the guide tube, and the traction rope is passed through the first annular cleaning brush.

[0011] Furthermore, a second annular cleaning brush is fixed on the outer wall of the box body at the cable outlet, and the cable is passed through the second annular cleaning brush.

[0012] Furthermore, the side wall of the support plate is rotatably connected with a pulley.

[0013] Furthermore, a level bubble is fixedly provided on the top of the box body.

[0014] The utility model has the advantages that the support plate can support and protect the measuring probe, and the support plate can maintain balance under the traction of the cable and the traction rope. At the same time, under the action of the pulley, the measuring probe can be driven to move smoothly downward along the measuring well. Under the action of the traction rope, the cable and the counterweight block, the stability of the probe can be ensured during the lowering process.

[0015] The first annular cleaning brush and the second annular cleaning brush facilitate cleaning of the surface of the traction rope and the cable during the lifting process, effectively reducing the corrosion of the well fluid on the traction rope, cleaning the surface gravel, and effectively reducing the wear of the traction rope during the process of winding around the traction rope winding roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] In the figure: box 1, traction rope winding roller 2, cable winding roller 3, traction rope 4, cable 5, traction rope outlet 6, support plate 7, measuring probe 8, counterweight 9, pulley 10, driving device 11, driven sprocket 12, driving sprocket 13, telescopic device 14, inserting gear 15, guide tube 16, first annular cleaning brush 17, second annular cleaning brush 18, level bubble 19, cable outlet 20. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1 As shown, the measuring device for measuring wells of engineering objects comprises a box body 1, a traction rope winding roller 2, a cable winding roller 3, a support plate 7, and a driving device 11;

[0021] The inside of the box body 1 is provided with a horizontally arranged traction rope winding roller 2 and a cable winding roller 3 from top to bottom. The traction rope winding roller 2 and the cable winding roller 3 are rotatably connected to the inner wall of the box body 1 respectively. A traction rope 4 with scale lines is wound around the traction rope winding roller 2, and a cable 5 is wound around the cable winding roller 3. A traction rope outlet 6 matching the traction rope 4 and a cable outlet 20 matching the cable 5 are respectively provided at the bottom end of the box body 1. The traction rope 4 passes through the traction rope outlet 6 and is fixedly connected to the top end of the support plate 7. The cable 5 passes through the cable outlet 20 and is fixedly connected to the measuring probe 8. The measuring probe 8 is fixedly connected to one side of the support plate 7; a counterweight block 9 is fixed to the bottom end of the support plate 7, and a pulley 10 is rotatably connected to the side wall of the support plate 7.

[0022] Specifically, the support plate 7 is used to support and protect the measuring probe 8. At the same time, the support plate 7 is kept balanced under the traction of the cable 5 and the traction rope 4. At the same time, under the action of the pulley 10, the measuring probe 8 can be driven to move smoothly downward along the measuring well. Under the action of the traction rope 4, the cable 5 and the counterweight 9, the stability of the measuring probe 8 can be guaranteed during the lowering process. Compared with the logging vehicle, the device is small in size and is convenient for measuring remote measuring wells with inconvenient transportation.

[0023] A driving device 11 is fixed on the outer wall of the box body 1, and the driving device 11 is a motor. One end of the traction rope winding roller 2 passes through the box body 1 and is fixedly connected to the output end of the driving device 11. The traction rope winding roller 2 is transmission-connected to the cable winding roller 3. The specific transmission connection method is that one end of the cable winding roller 3 passes through the box body 1 and extends to the outside of the box body 1. The cable winding roller 3 placed outside the box body 1 is fixed with a driven sprocket 12, and the end of the traction rope winding roller 2 placed outside the box body 1 is fixed with a driving sprocket 13, and the driven sprocket 12 and the driving sprocket 13 are transmission-connected.

[0024] A horizontally arranged telescopic device 14 is fixed on both sides of the box body 1, and a vertically arranged tooth 15 is fixed to the telescopic end of the telescopic device 14. The telescopic device 14 can be adjusted according to the diameter of the measuring well. At the same time, the tooth 15 is inserted into the ground near the wellhead, so that the device is stably fixed on the wellhead. The telescopic device 14 is specifically a telescopic tube.

[0025] A vertically arranged guide tube 16 is fixed to the traction rope outlet 6. The function of the guide tube 16 is to limit the moving direction of the traction rope 4 to ensure that the traction rope 4 moves vertically downward. At the same time, the guide tube 16 also has the function of maintaining the stability of the traction rope 4, which is convenient for reading the scale on the traction rope 4. The traction rope 4 is inserted into the guide tube 16. A first annular cleaning brush 17 is fixed to the bottom end of the guide tube 16. The traction rope 4 is inserted into the first annular cleaning brush 17. The first annular cleaning brush 17 is used to clean the surface of the traction rope 4 during the lifting process, which effectively reduces the corrosion of the well fluid to the traction rope 4, cleans the surface gravel, and effectively reduces the wear of the traction rope 4 during the process of winding around the traction rope winding roller 2.

[0026] A second annular cleaning brush 18 is fixed on the outer wall of the box body 1 at the cable outlet 20, and the cable 5 is passed through the second annular cleaning brush 18. The second annular cleaning brush 18 can effectively clean the gravel adhering to the surface of the cable 5 and remove the well fluid at the same time, thereby solving the wear of the cable 5 during the process of the cable 5 being wound on the cable winding roller 3 and effectively reducing the corrosion of the cable 5 by the well fluid.

[0027] A level bubble 19 is fixedly provided on the top of the box body 1, and the level bubble 19 is used to facilitate the adjustment of the horizontality of the box body 1 so that the traction rope 4 is measured vertically downward.

[0028] The operation process of this embodiment is as follows:

[0029] 1. Decentralization process:

[0030] The device is fixed to the wellhead by using the insert gear 15 and the telescopic device 14, and the driving device 11 is started to rotate forward. Under the action of the driving device 11, the traction rope winding roller 2 and the cable winding roller 3 are driven to rotate, and the traction rope 4 and the cable 5 below are synchronized, so that the measuring probe 8 moves downward. At this time, the lowering amount of the traction rope 4 is observed. When it reaches the test point, the driving device 11 is temporarily stopped, the traction rope 4 is read, and the measuring probe 8 is used for measurement at the same time;

[0031] 2. Promotion process:

[0032] When all the test points have been inspected and the measuring probe 8 needs to be lifted, the driving device 11 is started to reverse, and the traction rope winding roller 2 and the cable winding roller 3 rotate to reel in the traction rope 4 and the cable 5. At the same time, the first annular cleaning brush 17 and the second annular cleaning brush 18 clean the surface of the traction rope 4 and the cable 5 to ensure that the traction rope 4 and the cable 5 are intact for the next measurement.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A measuring device for an engineering well detection, characterized in that: It includes a box body, a traction rope winding roller, a cable winding roller, a support plate, and a driving device; The inside of the box is provided with the horizontally arranged traction rope winding roller and the cable winding roller in sequence from top to bottom, the traction rope winding roller and the cable winding roller are respectively rotatably connected to the inner wall of the box, a traction rope with scale lines is wound around the traction rope winding roller, and a cable is wound around the cable winding roller, a traction rope outlet matching the traction rope and a cable outlet matching the cable are respectively opened at the bottom end of the box, the traction rope passes through the traction rope outlet and is fixedly connected to the top end of the support disk, the cable passes through the cable outlet and is fixedly connected to the measuring probe, and the measuring probe is fixedly connected to one side of the support disk; The driving device is fixed on the outer wall of the box body, one end of the traction rope winding roller passes through the box body and is fixedly connected to the output end of the driving device, and the traction rope winding roller is transmission-connected to the cable winding roller.

2. The measuring device for detecting wells of engineering objects according to claim 1, characterized in that: Both sides of the box body are respectively fixed with horizontally arranged telescopic devices, and the telescopic ends of the telescopic devices are fixed with vertically arranged inserting teeth.

3. The measuring device for detecting wells of engineering objects according to claim 2, characterized in that: A counterweight is fixed to the bottom end of the support plate.

4. The measuring device for detecting wells of engineering objects according to claim 3, characterized in that: A vertically arranged guide tube is fixed to the traction rope outlet, the traction rope is passed through the guide tube, a first annular cleaning brush is fixed to the bottom end of the guide tube, and the traction rope is passed through the first annular cleaning brush.

5. The measuring device for detecting wells of engineering objects according to claim 4, characterized in that: A second annular cleaning brush is fixed on the outer wall of the box body at the cable outlet, and the cable is passed through the second annular cleaning brush.

6. The measuring device for engineering well detection according to claim 5, characterized in that: The side wall of the support plate is rotatably connected with a pulley.

7. The measuring device for engineering well detection according to claim 6, characterized in that: A level bubble is fixedly arranged on the top of the box body.

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