Logging cable installation auxiliary device

Abstract

The utility model discloses a logging cable installation auxiliary device which comprises a concentric-square-shaped bottom plate, a movable plate is arranged above the concentric-square-shaped bottom plate, the rear side of the top of the movable plate is fixedly connected with an L-shaped support, a logging cable guide wheel is rotationally installed on the inner wall of the rear side of the L-shaped support, and a PLC is fixedly installed on the left side of the top of the L-shaped support. According to the utility model, a series of structures are arranged, so that a plurality of logging cables can be stably separated, wear-resistant and guided when being used, the plurality of logging cables can be synchronously pressed and fixed in a pressure-controlled manner after wear-resistant and guided, and the logging cables can be automatically and stably fixed in a pressure-controlled pressing and fixing manner; the phenomenon that a large number of redundant cables slide into the well due to traction is reduced, the phenomenon that the cables in the well are messy due to the fact that the remaining amount of the cables in the well is large is avoided, the use stability is improved, buffering and unloading treatment can be conveniently conducted on instant hard traction impact force when the well logging cables are pulled accidentally after being fixed, the risk of damage to the well logging cables is reduced, and the use safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of well logging cables, in particular to a well logging cable installation auxiliary device. Background Art

[0002] Logging cables are used for logging, perforating, coring and other operations in various oil and gas wells. They can also be used in water conservancy and hydrological measurements, coalfield geological exploration, geothermal logging and other aspects. They are connecting cables between ground systems and underground instruments for hanging weight connections and transmitting measurement data. Currently, logging cables are needed to transmit information and data during underground operations. At present, during the installation of logging cables, the logging cables are generally installed in designated locations through positioning mechanisms. However, during the installation process, due to the different terrain when the logging cables are installed, the logging cables are prone to friction with the terrain or equipment at the corners, resulting in damage to the surface of the logging cables.

[0003] In this regard, a Chinese patent with announcement number CN219697199U discloses an auxiliary device for installing a well logging cable, comprising a base plate, wherein the upper surface of the base plate is provided with two groups of mounting holes, the upper surface of the base plate is fixedly connected to a first U-shaped plate, and the left and right sides of the first U-shaped plate are fixedly inlaid with first bearings; the device can be installed at a corner by providing the base plate and the mounting holes, and the first U-shaped plate and the well logging cable guide wheel can guide the well logging cable to keep the well logging cable away from the terrain corner to prevent the well logging cable from rubbing against the corner, and the threaded connection of the threaded rod and the threaded pipe can be used to control the movement of the second U-shaped plate, so that the second U-shaped plate can cooperate with the first U-shaped plate to limit the well logging cable to prevent the well logging cable from falling off, thereby solving the problem that the well logging cable is easily rubbed against the terrain or equipment at the corner due to different terrain when the well logging cable is installed, thereby causing damage to the surface of the well logging cable.

[0004] The above technology discloses a logging cable installation auxiliary device, which can be installed at a corner by being provided with a base plate and an installation hole, and the first U-shaped plate and the logging cable guide wheel can guide the logging cable to keep the logging cable away from the terrain corner and prevent the logging cable from being damaged by friction with the corner. However, there are the following shortcomings when using it: 1. After the logging cable is guided for wear prevention, the logging cable cannot be stably fixed, which can easily lead to a large amount of excess cable sliding in due to traction, especially when multiple cables are used in the well, there is a large amount of cable surplus in the well, which will cause clutter; 2. When the cable is accidentally pulled to produce a hard impact force, it cannot be buffered and unloaded; improvement is needed. In view of this, a logging cable installation auxiliary device is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a logging cable installation auxiliary device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a logging cable installation auxiliary device, comprising a circular bottom plate, a movable plate is arranged above the circular bottom plate, an L-shaped support is fixedly connected to the rear side of the top of the movable plate, a logging cable guide wheel is rotatably mounted on the inner wall of the rear side of the L-shaped support, a plurality of annular guide grooves are opened on the outer side of the logging cable guide wheel, and the inner side wall of the annular guide groove is movably contacted with the logging cable, and the plurality of annular guide grooves on the logging cable guide wheel are used in combination with the rotatable mode thereof, so that a plurality of logging cables can be guided and abrasion-proofed at the same time;

[0007] A PLC controller is fixedly installed on the left side of the top of the L-shaped support, an electric push rod is embedded and fixed on the inner wall of the top of the L-shaped support, and a pressure block is provided above the multiple annular guide grooves. The top of the multiple pressure blocks and the extended end of the electric push rod are fixedly connected with the same elastic pressure control tensioning component. The elastic pressure control tensioning component and the electric push rod are both electrically connected to the PLC controller. The elastic pressure control tensioning component is used to be controlled by the PLC controller to synchronously drive the multiple pressure blocks to move downward and elastically control the pressure to tighten them when the electric push rod is started, and the multiple pressure blocks are used to synchronously press and fix the multiple logging cables to prevent them from being pulled and slipped;

[0008] A transverse guide buffer assembly is fixedly connected between the inner walls of both sides of the circular bottom plate, and the top of the transverse guide buffer assembly is fixedly connected to the bottom of the movable plate. The transverse guide buffer assembly is used to perform transverse guide buffer unloading when the logging cable is accidentally pulled after compaction.

[0009] Preferably, the elastic pressure-controlled tensioning assembly includes a pressure plate fixedly connected to the extended end of the electric push rod, the bottom of the pressure plate is fixedly connected to a pressure sensor, the bottom of the pressure sensor is fixedly connected to a lifting plate, the tops of multiple pressure blocks are fixedly connected to two vertical guide rods, the pressure plate, the lifting plate and the L-shaped support are all slidably mounted on the multiple vertical guide rods, two first springs are fixedly connected between the top of the pressure block and the bottom of the lifting plate, and the first springs are movably mounted on the corresponding vertical guide rods, and the pressure sensor is electrically connected to the PLC controller.

[0010] Preferably, the transverse guide buffer assembly includes four transverse guide rods fixedly connected between the inner walls on both sides of the circular bottom plate in a rectangular shape, and the same slider is slidably sleeved on the four transverse guide rods. Four buffer springs are fixedly connected between the right side of the slider and the right inner wall of the circular bottom plate. The buffer springs are movably sleeved on the corresponding transverse guide rods, and the top of the transverse guide rod is fixedly connected to the bottom of the movable plate.

[0011] Preferably, two supporting balls are movably embedded on the top right side of the circular bottom plate, and the top of the supporting balls is in rolling contact with the bottom right side of the movable plate.

[0012] Preferably, a battery is fixedly mounted on the left side of the top of the L-shaped support, and the PLC controller and the electric push rod are electrically connected to the battery.

[0013] Preferably, an anti-slip rubber block is bonded and fixed to the bottom of the pressing block.

[0014] Preferably, both bottom sides of the circular bottom plate are integrally provided with outer edges, and the top of the outer edges is provided with two bolt installation through holes.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. This logging cable installation auxiliary device can stably separate and prevent wear and guide multiple logging cables when multiple logging cables are used, through the cooperation of the L-shaped support, logging cable guide wheel and multiple annular guide grooves, and can also perform anti-wear and guide work when a single logging cable is used, and has high flexibility in use;

[0017] 2. This logging cable installation auxiliary device can synchronously control pressure and fix multiple logging cables to prevent pulling and slipping after anti-wear guidance through the cooperation of the L-shaped support, PLC controller, electric push rod, elastic pressure control and tightening assembly, pressure block and anti-skid rubber block. By using the pressure control and fixing method, the logging cable can be automatically and stably fixed, the phenomenon of excessive cable sliding in due to pulling is reduced, the phenomenon of excessive cable residue in the well being caused by disorder is avoided, and the stability of use and the cleanliness of the well are improved;

[0018] 3. This logging cable installation auxiliary device, through the cooperation of the L-shaped support, movable plate, circular bottom plate and cross-guide buffer assembly, can buffer and unload the instantaneous hard pulling impact force when the logging cable is accidentally pulled after being fixed, thereby reducing the risk of damage to the logging cable and improving safety in use.

[0019] The utility model is provided with a series of structures, which is convenient for stable separation and anti-wear guidance when multiple logging cables are in use, and is convenient for synchronously controlling pressure and consolidating multiple logging cables to prevent pulling and slipping after anti-wear guidance. The logging cables are automatically and stably fixed by means of pressure control and consolidation, which reduces the phenomenon of a large amount of excess cables sliding in when they are pulled, avoids the phenomenon of a large amount of cables remaining in the well causing clutter, improves the stability of use, and is convenient for buffering and unloading the instantaneous hard pulling impact force when the logging cable is accidentally pulled after fixation, thereby reducing the risk of damage to the logging cable and improving the safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional structural schematic diagram of a well logging cable installation auxiliary device proposed by the utility model;

[0021] Figure 2This is a schematic diagram of the main cross-sectional structure of a logging cable installation auxiliary device proposed by the utility model;

[0022] Figure 3 For the utility model Figure 2 A schematic diagram of the enlarged structure of part A in the figure.

[0023] In the figure: 1. circular bottom plate; 2. movable plate; 3. L-shaped support; 4. logging cable guide wheel; 401, annular guide groove; 5. electric push rod; 6. PLC controller; 7. pressure plate; 8. pressure sensor; 9. lifting plate; 10. pressure block; 11. anti-slip rubber block; 12. first spring; 13. vertical guide rod; 14. support ball; 15. horizontal guide rod; 16. slider; 17. buffer spring. DETAILED DESCRIPTION

[0024] 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 in 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.

[0025] like Figures 1 to 3 As shown, a logging cable installation auxiliary device proposed in this embodiment includes a circular bottom plate 1, both sides of the bottom of the circular bottom plate 1 are integrally provided with outer edges, the top of the outer edges are provided with two bolt installation through holes, a movable plate 2 is provided above the circular bottom plate 1, and an L-shaped support 3 is fixedly connected to the top rear side of the movable plate 2, two supporting balls 14 are movably embedded on the top right side of the circular bottom plate 1, and the top of the supporting balls 14 is in rolling contact with the bottom right side of the movable plate 2, which plays the effect of movably supporting the bottom right side of the movable plate 2, and the rear side of the L-shaped support 3 A logging cable guide wheel 4 is rotatably mounted on the inner wall, wherein a bearing is fixedly connected to the inner wall of the rear side of the L-shaped support 3, a rotating shaft is fixedly connected to the rear side of the logging cable guide wheel 4, and the inner ring of the bearing is fixedly fitted to the outer side of the rotating shaft, which plays the role of rotatably mounting the logging cable guide wheel 4. A plurality of annular guide grooves 401 are provided on the outer side of the logging cable guide wheel 4, and a logging cable is movably contacted on the inner side wall of the annular guide groove 401. By utilizing the plurality of annular guide grooves 401 on the logging cable guide wheel 4 in combination with its own rotatable mode, a plurality of logging cables can be guided and abrasion-proofed at the same time;

[0026] A PLC controller 6 is fixedly installed on the top left side of the L-shaped support 3, an electric push rod 5 is embedded and fixed on the top inner wall of the L-shaped support 3, a plurality of annular guide grooves 401 are provided with a pressing block 10, a non-slip rubber block 11 is bonded and fixed to the bottom of the pressing block 10, a same elastic pressure control tensioning component is fixedly connected between the top of the plurality of pressing blocks 10 and the extended end of the electric push rod 5, the elastic pressure control tensioning component and the electric push rod 5 are both electrically connected to the PLC controller 6, a battery is fixedly installed on the top left side of the L-shaped support 3, the PLC controller 6 and the electric push rod 5 are both electrically connected to the battery, and the battery is arranged It serves to supply power to the PLC controller 6 and the electric push rod 5. The elastic pressure-controlled tensioning component is used to be controlled by the PLC controller 6 to synchronously drive multiple pressure blocks 10 to move downward and elastically control the pressure to tighten them when the electric push rod 5 is started. Multiple pressure blocks 10 are used to synchronously press and fix multiple logging cables to prevent pulling and slipping. The anti-slip rubber blocks 11 have the effect of preventing slipping during pressing. A cross-guide buffer component is fixedly connected between the inner walls on both sides of the circular bottom plate 1. The top of the cross-guide buffer component is fixedly connected to the bottom of the movable plate 2. The cross-guide buffer component is used to perform cross-guide buffer unloading when the logging cable is accidentally pulled after pressing.

[0027] Specifically, the elastic pressure-controlled tensioning assembly includes a pressing plate 7 fixedly connected to the protruding end of the electric push rod 5, a pressure sensor 8 is fixedly connected to the bottom of the pressing plate 7, a lifting plate 9 is fixedly connected to the bottom of the pressure sensor 8, and the tops of multiple pressing blocks 10 are fixedly connected to two vertical guide rods 13. The pressing plate 7, the lifting plate 9 and the L-shaped support 3 are all slidably sleeved on the multiple vertical guide rods 13, wherein the top of the lifting plate 9, the top of the pressing plate 7 and the top inner wall of the L-shaped support 3 are all provided with multiple vertical guide holes, and the inner walls of the vertical guide holes are slidably sleeved on the outer sides of the corresponding vertical guide rods 13, which plays the effect of vertically sliding guiding the pressing plate 7 and the lifting plate 9, two first springs 12 are fixedly connected between the top of the pressing block 10 and the bottom of the lifting plate 9, and the first springs 12 are movably sleeved on the corresponding vertical guide rods 13, and the pressure sensor 8 is connected to the PLC controller. 6 is electrically connected; the set pressure plate 7, pressure sensor 8, lifting plate 9, vertical guide rod 13 and first spring 12 cooperate, and the PLC controller 6 is used to preset the closing pressure value of the electric push rod 5, and the electric push rod 5 is used to drive the pressure plate 7 to move downward. The pressure plate 7 drives the lifting plate 9 to move downward through the pressure sensor 8. The lifting plate 9 drives the multiple pressure blocks 10 downward to squeeze the multiple logging cables through the multiple first springs 12 and is blocked and restricted by them. The lifting plate 9 that continues to move downward compresses the multiple first springs 12, and uses the compressed elastic force to drive the corresponding pressure blocks 10 to elastically press and fix downward. The pressure sensor 8 detects the squeezing force and transmits it to the PLC controller 6 pressure value. When the preset pressure value is reached, the PLC controller 6 controls the electric push rod 5 to automatically close, so as to achieve the effect of synchronously controlling the pressure and fixing the multiple logging cables to prevent pulling and slipping.

[0028] Furthermore, the transverse guide buffer assembly includes four transverse guide rods 15 fixedly connected between the inner walls on both sides of the circular bottom plate 1 in a rectangular shape, and the same slider 16 is slidably sleeved on the four transverse guide rods 15, wherein the right side of the slider 16 is rectangular with four transverse guide holes respectively slidably sleeved with the outer sides of the corresponding transverse guide rods 15, and the slider 16 is slidably sleeved on the four transverse guide rods 15 through the four transverse guide holes, which plays the effect of guiding the transverse sliding of the transverse guide rods 15, and four buffer springs 17 are fixedly connected between the right side of the slider 16 and the right inner wall of the circular bottom plate 1, and the buffer spring 17 is movably sleeved On the corresponding cross guide rod 15, the top of the cross guide rod 15 is fixedly connected to the bottom of the movable plate 2; the cross guide rod 15, the slider 16 and the buffer spring 17 are arranged to cooperate with each other. After being pressed, when the logging cable is accidentally pulled, it will drive the logging cable guide wheel 4 to move to the right. The logging cable guide wheel 4 drives the movable plate 2 to move to the right through the L-shaped support 3. The movable plate 2 drives the slider 16 to slide on the cross guide rod 15 and compress the buffer spring 17. The elastic force of the buffer spring 17 is used to achieve buffering and unloading of the instantaneous hard pulling impact force when it is accidentally pulled, thereby reducing the risk of damage to the logging cable.

[0029] The method of using this embodiment is as follows: install the circular bottom plate 1 at the corner of the well, put the logging cable into the corresponding annular guide groove 401, the front and rear inner walls of the annular guide groove 401 can block and limit the logging cable to prevent it from slipping forward or backward, and when multiple logging cables are used, the multiple logging cables can be respectively put into the corresponding annular guide groove 401. The setting of multiple annular guide grooves 401 can perform safe separation and guidance when multiple logging cables are used. When the cable moves and goes in, it will drive the logging cable guide wheel 4 to rotate. The rotation of the logging cable guide wheel 4 can avoid direct hard wear and realize anti-wear guidance;

[0030] After the logging cable is lowered into the well to a suitable depth, the closing pressure value of the electric push rod 5 is pre-set by the PLC controller 6 according to the compaction requirement. The personnel start the electric push rod 5 in the positive direction to drive the pressing plate 7 to move downward. The pressing plate 7 drives the lifting plate 9 to move downward through the pressure sensor 8. The lifting plate 9 drives the multiple pressing blocks 10 to move downward through the multiple first springs 12. The pressing blocks 10 drive the corresponding two vertical guide rods 13 to move downward. At the same time, the multiple pressing blocks 10 drive the multiple anti-slip rubber blocks 11 to squeeze the multiple logging cables downward synchronously and be blocked and restricted by them. At this time, the lifting plate 9 that continues to move downward compresses the multiple first springs 12, and uses the compressed The elastic force of the contraction drives the corresponding pressing block 10 to elastically press downward, and the pressure sensor 8 detects the extrusion force applied downward by the pressing plate 7 and transmits it to the pressure value of the PLC controller 6. When the preset pressure value is reached, the PLC controller 6 controls the electric push rod 5 to automatically close, so as to achieve the effect of synchronously controlling the pressure and pressing of multiple logging cables to prevent pulling and slipping. If only one logging cable is used, one of the pressing blocks 10 performs the pressing and fixing work, and the logging cable is automatically and stably fixed by the controlled pressure and fixing method, so as to reduce the phenomenon of a large amount of extra cables sliding in due to pulling, avoid the phenomenon of a large amount of cables remaining in the well causing chaos, and improve the stability of use;

[0031] After the pressure control is stabilized and fixed, when the logging cable is accidentally pulled, the logging cable guide wheel 4 will be driven to move to the right. The logging cable guide wheel 4 drives the movable plate 2 to move to the right through the L-shaped support 3. The movable plate 2 drives the slider 16 to slide on the cross guide rod 15 and compress the buffer spring 17. The elastic force of the buffer spring 17 is utilized to achieve the effect of buffering and unloading the instantaneous hard pulling impact force when it is accidentally pulled, thereby reducing the risk of damage to the logging cable and improving the safety of use.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A logging cable installation auxiliary device, comprising a circular bottom plate (1), characterized in that: A movable plate (2) is provided above the circular bottom plate (1), an L-shaped support (3) is fixedly connected to the top rear side of the movable plate (2), a logging cable guide wheel (4) is rotatably mounted on the rear inner wall of the L-shaped support (3), a plurality of annular guide grooves (401) are provided on the outer side of the logging cable guide wheel (4), and a logging cable is movably contacted on the inner side wall of the annular guide groove (401); A PLC controller (6) is fixedly installed on the left side of the top of the L-shaped support (3), an electric push rod (5) is embedded and fixed on the inner wall of the top of the L-shaped support (3), a plurality of annular guide grooves (401) are provided with a pressure block (10), and a same elastic pressure control tensioning component is fixedly connected between the top of the plurality of pressure blocks (10) and the extended end of the electric push rod (5), and the elastic pressure control tensioning component and the electric push rod (5) are both electrically connected to the PLC controller (6); A transverse guide buffer assembly is fixedly connected between the inner walls on both sides of the circular bottom plate (1), and the top of the transverse guide buffer assembly is fixedly connected to the bottom of the movable plate (2).

2. A logging cable installation auxiliary device according to claim 1, characterized in that: The elastic pressure-controlled tensioning assembly comprises a pressure plate (7) fixedly connected to the protruding end of the electric push rod (5); the bottom of the pressure plate (7) is fixedly connected to a pressure sensor (8); the bottom of the pressure sensor (8) is fixedly connected to a lifting plate (9); the tops of a plurality of pressure blocks (10) are fixedly connected to two vertical guide rods (13); the pressure plate (7), the lifting plate (9) and the L-shaped support (3) are slidably mounted on the plurality of vertical guide rods (13); two first springs (12) are fixedly connected between the top of the pressure block (10) and the bottom of the lifting plate (9); and the first springs (12) are movably mounted on the corresponding vertical guide rods (13); and the pressure sensor (8) is electrically connected to the PLC controller (6).

3. A logging cable installation auxiliary device according to claim 1, characterized in that: The transverse guide buffer assembly comprises four transverse guide rods (15) in a rectangular shape and fixedly connected between the inner walls on both sides of the circular bottom plate (1); a same slider (16) is slidably sleeved on the four transverse guide rods (15); four buffer springs (17) are fixedly connected between the right side of the slider (16) and the right inner wall of the circular bottom plate (1); the buffer springs (17) are movably sleeved on the corresponding transverse guide rods (15); and the top of the transverse guide rod (15) is fixedly connected to the bottom of the movable plate (2).

4. A logging cable installation auxiliary device according to claim 1, characterized in that: Two supporting balls (14) are movably embedded on the right side of the top of the circular bottom plate (1), and the top of the supporting balls (14) is in rolling contact with the right side of the bottom of the moving plate (2).

5. The logging cable installation auxiliary device according to claim 1, characterized in that: A storage battery is fixedly mounted on the left side of the top of the L-shaped support (3), and the PLC controller (6) and the electric push rod (5) are both electrically connected to the storage battery.

6. The logging cable installation auxiliary device according to claim 1, characterized in that: An anti-slip rubber block (11) is bonded and fixed to the bottom of the pressing block (10).

7. The logging cable installation auxiliary device according to claim 1, characterized in that: The bottoms of both sides of the circular bottom plate (1) are integrally provided with outer edges, and the tops of the outer edges are provided with two bolt installation through holes.

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