A tension calibration device for well logging instruments

Abstract

The present invention discloses a logging instrument tension calibration device, and relates to the technical field of oilfield logging. The logging instrument tension calibration device comprises a fixed plate, the top of the fixed plate is fixedly connected to a sliding rod, and the outer wall of the sliding rod is movably connected to a fixed detection mechanism. The logging instrument tension calibration device fixes the fixed sleeve at the corresponding position on the sliding rod by turning the fixed knob, and closes the pressing clamp and the corresponding clamping knob through the action of the thread by turning the corresponding clamping knob, so as to fix the corresponding part of the logging instrument. The gas chamber discharges the internal gas from the opening on the opening clamp through the pipeline, and the gas is blown to the surface of the logging instrument to dry the liquid, so as to prevent the surface of the instrument from being stained with sweat when held by hand, resulting in loose fixation, and the logging instrument blocks the air hole to absorb it, further ensuring the accuracy of the calibration.

Description

Technical Field

[0001] The invention relates to the technical field of oilfield well logging, in particular to a well logging instrument tension calibration device. Background Art

[0002] The tension detection of the logging instrument can not only ensure the safe lowering of the instrument into the well, but also accurately obtain tension data, improve the reliability of logging data, and further optimize the operation process, providing strong support for the continuous advancement of logging technology;

[0003] The patent cited in China with the announcement number "CN220583667U" discloses a tension calibration device for a well logging instrument, comprising: a sealed box body; and a locking member, which is arranged in the sealed box body and is used to fix the fixed end assembly in the sealed box body; a movable end assembly, which is arranged in the sealed box body and is slidably connected to the sealed box body; a driving assembly; and a standard tension meter.

[0004] When using portable logging instruments for tension calibration, since the part of the logging instrument inserted into the well is made of smooth material, it is easy to slip when the logging instrument surface is fixed for inspection, resulting in inaccurate calibration and affecting subsequent logging work. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a logging instrument tension calibration device to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a logging instrument tension calibration device, comprising a fixed plate, a sliding rod fixedly connected to the top of the fixed plate, a fixed detection mechanism movably connected to the outer wall of the sliding rod, a recording mechanism movably connected to the outer wall of the sliding rod, a fixed detection mechanism is used to clamp the part of the logging instrument to be measured, a tension meter is used to pull to read the pulling value on the logging instrument, and the value is compared with the tension value on the logging instrument for calibration;

[0007] Fixed testing agencies include:

[0008] A fixed sleeve, the fixed sleeve being movably connected to the outer wall of the sliding rod;

[0009] A fixed knob, the fixed knob being fixedly connected inside the fixed sleeve;

[0010] A hole-opening clip, wherein two hole-opening clips are provided, one of which is fixedly connected to the top of the fixing sleeve, and the other hole-opening clip is provided on the outer wall of the sliding rod;

[0011] The outer walls of the two opening clamps are movably connected with gas chambers, the top of the gas chamber is located at the top of the corresponding opening clamp and is fixedly connected with a pressing clamp, and the bottom of the gas chamber is connected with the openings set inside the corresponding opening clamp through a pipeline;

[0012] The two pressing clamps are both movably connected with clamping knobs, and the clamping knobs are movably connected to the corresponding opening clamps.

[0013] Preferably, the outer wall of the sliding rod is movably connected with a first sliding sleeve, and the first sliding sleeve is fixedly connected to the bottom of the left opening clamp.

[0014] Preferably, a connecting frame is provided on the left side of the first sliding sleeve, and the connecting frame is fixedly connected to the open hole clamp on the top of the first sliding sleeve, a main measuring spring is fixedly connected to the left side of the connecting frame, and a pulling hook is fixedly connected to the left side of the main measuring spring.

[0015] Preferably, the recording mechanism includes a second sliding sleeve, which is fixedly connected to the outer wall of the fixed plate on the left side of the fixed sleeve, a movable air column is fixedly connected to the bottom of the second sliding sleeve, a movable plug is movably connected inside the movable air column, and a recording plate is fixedly connected to the left side of the movable plug.

[0016] Preferably, the bottom of the pulling hook is fixedly connected to a third sliding sleeve, the bottom of the third sliding sleeve is fixedly connected to a pen cover, the inside of the pen cover is movably connected to a marking pen, the top of the marking pen is fixedly connected to a first spring, and the top of the first spring is fixedly connected to the third sliding sleeve.

[0017] Preferably, a second spring is provided inside the movable air column, and the second spring is fixedly connected to the movable plug, the other end of the second spring connected to the movable plug is fixedly connected to the inner wall of the movable air column, an inner embedded plate is fixedly connected inside the movable air column, a third spring is fixedly connected to the outer wall of the inner embedded plate, an anti-air plug is movably connected inside the movable air column, and the anti-air plug is fixedly connected to the third spring.

[0018] Preferably, a driving air column is fixedly connected to the outer wall of the second sliding sleeve, a second one-way valve is fixedly connected to the outer wall of the driving air column, a first one-way valve is fixedly connected to the outside of the driving air column, and the first one-way valve is fixedly connected to the movable air column through a pipeline, a compression plug is movably connected to the inside of the driving air column, a fourth spring is arranged inside the driving air column, and the fourth spring is fixedly connected to the compression plug, and the other end of the fourth spring connected to the compression plug is fixedly connected to the inner wall of the driving air column.

[0019] The present invention provides a well logging instrument tension calibration device, which has the following beneficial effects:

[0020] 1. The logging instrument tension calibration device fixes the fixing sleeve at the corresponding position on the sliding rod by turning the fixing knob, and closes the pressing clamp and the corresponding clamping knob through the action of the thread to fix the corresponding part of the logging instrument. In this way, the air chamber shrinks, and the air chamber discharges the internal gas through the opening on the opening clamp through the pipeline. The gas will blow to the surface of the logging instrument to dry the liquid, preventing the surface of the instrument from being stained with sweat when held in the hand, resulting in loose fixation. In addition, the logging instrument will block the air hole to absorb it, further ensuring the accuracy of the calibration, so as to ensure the smooth progress of the logging.

[0021] 2. The logging instrument tension calibration device uses a dynamometer to pull the pull hook. When the pull hook is pulled, the main measuring spring is stretched. At this time, the reading on the dynamometer is the tension of the logging instrument. It is compared with the tension count on the logging instrument for calibration. When the tension is too large, it can be intuitively seen that the main measuring spring is pulled and damaged, preventing the logging instrument from being damaged due to excessive tension, so as to ensure the smooth progress of logging.

[0022] 3. The tension calibration device of the logging instrument can move the third sliding sleeve synchronously through the main measuring spring, so that the marking pen can move to leave marks on the recording board. By pressing the air compressor, the embedded plate will drive the gas inside the gas column through the first one-way valve and then through the pipeline to let the other gas flow into the moving gas column, which will cause the recording board to move and make the marks turn. The recording board can be turned multiple times to record multiple groups of data, and the multiple groups of data recorded can be compared for analysis, so as to better calibrate the tension detection of the measuring instrument and better ensure the smooth progress of logging.

[0023] 4. The tension calibration device of the logging instrument is fixedly connected to the main measuring spring through the third sliding sleeve via a pulling hook, and the main measuring spring is fixedly connected to the first sliding sleeve via a connecting frame. Under the restriction of the sliding rod, the main measuring spring is always in a position parallel to the sliding rod, which can avoid the main measuring spring from tilting when stretched, thereby ensuring the accuracy of detection and facilitating smooth logging. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the main stereoscopic structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the back three-dimensional structure of the present invention;

[0026] Figure 3 for Figure 2 The enlarged structural diagram of part A in the middle;

[0027] Figure 4 This is a schematic structural diagram of the first sliding sleeve of the present invention;

[0028] Figure 5 for Figure 2 The enlarged structural diagram of part B in the middle;

[0029] Figure 6 for Figure 4 The enlarged structural diagram of the middle C part;

[0030] Figure 7 This is a schematic diagram of the cross-sectional structure of the mobile air column of the present invention;

[0031] Figure 8 This is a schematic diagram of the driving air column structure of the present invention.

[0032] In the figure: 1. fixed plate; 2. sliding rod; 3. fixed detection mechanism; 301. fixed sleeve; 302. fixed knob; 303. hole opening clamp; 304. pressing clamp; 305. clamping knob; 306. air chamber; 307. connecting frame; 308. main measuring spring; 309. pulling hook; 310. first sliding sleeve; 4. recording mechanism; 401. second sliding sleeve; 402. third sliding sleeve; 403. pen cover; 404. marking pen; 405. first spring; 406. moving air column; 407. moving plug; 408. recording board; 409. second spring; 410. embedded plate; 411. air-proof plug; 412. third spring; 413. driving air column; 414. first one-way valve; 415. second one-way valve; 416. air-compression plug; 417. fourth spring. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0035] Example 1: Please refer to Figure 1-4 The present invention provides a technical solution: a logging instrument tension calibration device, comprising a fixed plate 1, a sliding rod 2 is fixedly connected to the top of the fixed plate 1, a fixed detection mechanism 3 is movably connected to the outer wall of the sliding rod 2, and a recording mechanism 4 is movably connected to the outer wall of the sliding rod 2. The fixed detection mechanism 3 is used to clamp the part of the logging instrument to be measured, and a tension meter is used to pull to read the pulling value on the logging instrument, and the value is compared with the tension value on the logging instrument for calibration;

[0036] The fixed detection mechanism 3 comprises:

[0037] A fixing sleeve 301, the fixing sleeve 301 is movably connected to the outer wall of the sliding rod 2;

[0038] A fixed knob 302, which is fixedly connected to the interior of the fixed sleeve 301;

[0039] A hole clamp 303, wherein two hole clamps 303 are provided, wherein one hole clamp 303 is fixedly connected to the top of the fixing sleeve 301, and the other hole clamp 303 is provided on the outer wall of the sliding rod 2;

[0040] The outer walls of the two hole clamps 303 are movably connected with gas chambers 306. The top of the gas chamber 306 is located at the top of the corresponding hole clamp 303 and is fixedly connected with a pressing clamp 304. The bottom of the gas chamber 306 is connected with the openings set inside the corresponding hole clamp 303 through a pipeline. When the first sliding sleeve 310 is squeezed, the gas will be discharged from the openings on the hole clamp 303 through the pipeline.

[0041] The two pressing clamps 304 are both movably connected with clamping knobs 305 , and the clamping knobs 305 are movably connected to the corresponding opening clamps 303 .

[0042] The outer wall of the sliding rod 2 is movably connected with a first sliding sleeve 310 , and the first sliding sleeve 310 is fixedly connected to the bottom of the left opening clamp 303 .

[0043] A connecting frame 307 is provided on the left side of the first sliding sleeve 310, and the connecting frame 307 is fixedly connected to the open hole clamp 303 on the top of the first sliding sleeve 310. A main measuring spring 308 is fixedly connected to the left side of the connecting frame 307. The main measuring spring 308 can withstand a maximum tensile force that is less than the limit that the logging equipment can withstand. A pulling hook 309 is fixedly connected to the left side of the main measuring spring 308.

[0044] When in use, the fixing knob 302 is turned to fix the fixing sleeve 301 at the corresponding position on the sliding rod 2, and then the part of the logging instrument that goes into the well is placed between the two corresponding opening clamps 303, and then the corresponding clamping knob 305 is turned to close the pressing clamp 304 and the corresponding clamping knob 305 through the action of the thread. During the closing process, the pressing clamp 304 and the corresponding opening clamp 303 will cause the gas chamber 306 to shrink, and the gas chamber 306 will release the internal gas from the opening clamp 303 through the pipeline The gas is discharged through the opening of the well logging instrument, and the gas will be blown to the surface of the well logging instrument to prevent the surface of the instrument from being stained with sweat when held in the hand, resulting in loose fixation. After fixation is completed, a dynamometer is used to pull the pulling hook 309. When the pulling hook 309 is pulled, the main measuring spring 308 is stretched. At this time, the reading on the dynamometer is the tension of the well logging instrument, which is compared with the tension count on the well logging instrument for calibration. When the tension is too large, it can be intuitively seen that the main measuring spring 308 is pulled and damaged, preventing the well logging instrument from being damaged due to excessive tension.

[0045] Example 2: Please refer to Figure 1-8 Based on the first embodiment, the present invention provides a technical solution:

[0046] The recording mechanism 4 includes a second sliding sleeve 401, which is fixedly connected to the left side of the fixed sleeve 301 and located on the outer wall of the fixed plate 1. A movable air column 406 is fixedly connected to the bottom of the second sliding sleeve 401, and a movable plug 407 is movably connected inside the movable air column 406. A recording plate 408 is fixedly connected to the left side of the movable plug 407.

[0047] The bottom of the pulling hook 309 is fixedly connected to the third sliding sleeve 402, the bottom of the third sliding sleeve 402 is fixedly connected to the pen cover 403, the inside of the pen cover 403 is movably connected to the marking pen 404, the top of the marking pen 404 is fixedly connected to the first spring 405, the top of the first spring 405 is fixedly connected to the third sliding sleeve 402, the pen cover 403 guides and positions 440, the first spring 405 will push the marking pen 404 outward to allow the tip of 440 to contact the recording board 408, and can leave handwriting on the recording board 408.

[0048] A second spring 409 is provided inside the movable air column 406, and the second spring 409 is fixedly connected to the movable plug 407, the other end of the second spring 409 connected to the movable plug 407 is fixedly connected to the inner wall of the movable air column 406, an inner embedded plate 410 is fixedly connected inside the movable air column 406, and a third spring 412 is fixedly connected to the outer wall of the inner embedded plate 410, an anti-gas plug 411 is movably connected inside the movable air column 406, and the anti-gas plug 411 is fixedly connected to the third spring 412.

[0049] The outer wall of the second sliding sleeve 401 is fixedly connected to a driving air column 413, and the outer wall of the driving air column 413 is fixedly connected to a second one-way valve 415, the second one-way valve 415 can only allow gas to enter the driving air column 413 from the outside, but cannot allow gas to discharge from the driving air column 413, the outside of the driving air column 413 is fixedly connected to a first one-way valve 414, and the first one-way valve 414 is fixedly connected to the movable air column 406 through a pipeline, the first one-way valve 414 can only allow other gases to enter the movable air column 406 through the pipeline, and cannot allow gas to enter the driving air column 413 through the pipeline, the driving air column 413 is movably connected to a compression plug 416, a fourth spring 417 is arranged inside the driving air column 413, and the fourth spring 417 is fixedly connected to the compression plug 416, and the other end of the fourth spring 417 connected to the compression plug 416 is fixedly connected to the inner wall of the driving air column 413.

[0050] When in use, when the pulling hook 309 is pulled up by the dynamometer, the main measuring spring 308 will synchronously move the third sliding sleeve 402, and the third sliding sleeve 402 is fixedly connected to the main measuring spring 308 through the pulling hook 309. At the same time, the main measuring spring 308 is fixedly connected to the first sliding sleeve 310 through the connecting frame 307. Under the restriction of the sliding rod 2, the main measuring spring 308 is always in a position parallel to the sliding rod 2, which can prevent the main measuring spring 308 from tilting when stretched, thereby ensuring the accuracy of the detection. The third sliding sleeve 402 will move the marking pen 404 to leave handwriting on the recording board 408. In the process of pulling the pulling hook 309, by pressing the air compressor 416, the embedded plate 410 will drive the internal gas of the gas column 413 through the first one-way valve 414 and then through the pipeline to let the rest flow into the inside of the moving gas column 406, and the gas will push the moving plug 407 to move outside the box, and the movement of the moving plug 407 will move the recording board 408, and the recording board 408 will be moved. The direction of movement of the recording board 408 is perpendicular to the direction of the previous handwriting, and a horizontal line will be left to change the trajectory of the handwriting. According to the scale on the recording board 408 corresponding to the change position of the handwriting, the pulling force of the main measuring spring 308 at this time can be read, that is, the tension of the logging instrument at this time. After pressing the compression plug 416, the compression plug 416 is pushed and reset by the fourth spring 417, and the external gas is sucked into the interior through the second one-way valve 415. Then, the compression plug 416 is pressed again, and the recording board 408 can be moved again to change its position, so as to record the tension at different times again. After completing the recording, the anti-gas plug 411 can be pressed to allow the inside of the moving gas column 406 to communicate with the external gas, and the gas inside the moving gas column 406 will be discharged, so that the second spring 409 pulls the moving plug 407 to reset, thereby resetting the recording board 408. By comparing the recorded multiple sets of data for analysis, the tension detection of the measuring instrument can be better calibrated.

[0051] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A logging instrument tension calibration device, comprising a fixing plate (1), characterized in that: The top of the fixed plate (1) is fixedly connected to a sliding rod (2), the outer wall of the sliding rod (2) is movably connected to a fixed detection mechanism (3), the outer wall of the sliding rod (2) is movably connected to a recording mechanism (4), the fixed detection mechanism (3) is used to clamp the part of the well logging instrument to be tested, and a tensile force gauge is used to pull to read the pulling value on the well logging instrument, and the reading is compared with the tension value on the well logging instrument for verification; The fixed detection mechanism (3) comprises: A fixed sleeve (301), wherein the fixed sleeve (301) is movably connected to the outer wall of the sliding rod (2); A fixed knob (302), wherein the fixed knob (302) is fixedly connected to the interior of the fixed sleeve (301); A hole-opening clip (303), wherein two hole-opening clips (303) are provided, wherein one of the hole-opening clips (303) is fixedly connected to the top of the fixing sleeve (301), and the other hole-opening clip (303) is provided on the outer wall of the sliding rod (2); The outer walls of the two hole-opening clamps (303) are movably connected to gas bins (306), the tops of the gas bins (306) are located at the tops of the corresponding hole-opening clamps (303) and are fixedly connected to the pressing clamps (304), and the bottoms of the gas bins (306) are connected to the openings arranged inside the corresponding hole-opening clamps (303) through pipelines; The two pressing clamps (304) are each movably connected to a clamping knob (305) inside, and the clamping knob (305) is movably connected to the inside of the corresponding opening clamp (303); The recording mechanism (4) comprises a second sliding sleeve (401), the second sliding sleeve (401) being fixedly connected to the left side of the fixed sleeve (301) and located on the outer wall of the fixed plate (1), a movable air column (406) being fixedly connected to the bottom of the second sliding sleeve (401), a movable plug (407) being movably connected inside the movable air column (406), and a recording plate (408) being fixedly connected to the left side of the movable plug (407); A second spring (409) is provided inside the movable air column (406), and the second spring (409) is fixedly connected to the movable plug (407), and the other end of the second spring (409) connected to the movable plug (407) is fixedly connected to the inner wall of the movable air column (406), an inner plate (410) is fixedly connected inside the movable air column (406), and a third spring (412) is fixedly connected to the outer wall of the inner plate (410), and an anti-gas plug (411) is movably connected inside the movable air column (406), and the anti-gas plug (411) is fixedly connected to the third spring (412); The outer wall of the second sliding sleeve (401) is fixedly connected to a driving air column (413), the outer wall of the driving air column (413) is fixedly connected to a second one-way valve (415), the outside of the driving air column (413) is fixedly connected to a first one-way valve (414), and the first one-way valve (414) is fixedly connected to the movable air column (406) through a pipeline, the inside of the driving air column (413) is movably connected to a compression plug (416), a fourth spring (417) is arranged inside the driving air column (413), and the fourth spring (417) is fixedly connected to the compression plug (416), and the other end of the fourth spring (417) connected to the compression plug (416) is fixedly connected to the inner wall of the driving air column (413).

2. A logging instrument tension calibration device according to claim 1, characterized in that: The outer wall of the sliding rod (2) is movably connected to a first sliding sleeve (310), and the first sliding sleeve (310) is fixedly connected to the bottom of the left opening clamp (303).

3. A logging instrument tension calibration device according to claim 2, characterized in that: A connecting frame (307) is provided on the left side of the first sliding sleeve (310), and the connecting frame (307) is fixedly connected to the hole clamp (303) on the top of the first sliding sleeve (310), a main measuring spring (308) is fixedly connected to the left side of the connecting frame (307), and a pulling hook (309) is fixedly connected to the left side of the main measuring spring (308).

4. A logging instrument tension calibration device according to claim 3, characterized in that: The bottom of the pulling hook (309) is fixedly connected to a third sliding sleeve (402), the bottom of the third sliding sleeve (402) is fixedly connected to a pen sleeve (403), a marking pen (404) is movably connected inside the pen sleeve (403), the top of the marking pen (404) is fixedly connected to a first spring (405), and the top of the first spring (405) is fixedly connected to the third sliding sleeve (402).

Images