A stable support type oil field geological auxiliary sampling device

Abstract

The application discloses a kind of stable support type oil field geology auxiliary sampling equipment, specifically relates to auxiliary sampling technical field, including auxiliary sampling cylinder, stabilizing ring, multiple horizontal scrapers, multiple vertical scrapers and stable support linkage mechanism;Wherein stable support linkage mechanism includes multiple stabilizing columns, bearing groove ring, sleeve joint collar, support block, connecting support block, reinforcing plate, sleeve joint block and reinforcing block;It also includes stable limiting mechanism and fluctuation detection component.The application has the advantage that the bottom end of the auxiliary sampling cylinder can be positioned according to the specified position by the stable support linkage mechanism, greatly improving the stability of auxiliary sampling, thereby solving the problem that the drill bit may deviate and tilt when sampling under the action of centrifugal force, making it difficult to stabilize and support the drill bit for auxiliary sampling according to the specified position, and the stability of auxiliary sampling is poor.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of auxiliary sampling, more particularly, the present application relates to a stable support type oil field geological auxiliary sampling equipment. BACKGROUND

[0002] The stable support type oil field geological sampling equipment plays an important role in oil field geological exploration and development. Its main use is reflected in multi-depth sampling, and some stable support type sampling equipment also has a lifting structure, which can realize drilling bit sampling of different depth geological layers, improving the comprehensiveness and accuracy of sampling.

[0003] In the existing public literature, the patent with the patent announcement number CN219798791U discloses a geological multi-layer sampling equipment for oil field exploration. The sampling auxiliary equipment adjusts the position of the driving mechanism through the lifting mechanism to realize the downward exploration and sampling of the oil field geology by the high-speed rotating sampling head. The lifting mechanism includes a gantry, a two-stage lifting assembly is arranged at the middle position of the top inner cavity of the gantry, and the bottom end of the two-stage lifting assembly is connected with the top surface of the driving mechanism. The utility model can not only explore and sample the oil field geology, but also reduce the overall occupied space size when the equipment moves, thereby facilitating the user to carry the equipment. However, the technology still has the following problems when in use.

[0004] In the process of auxiliary sampling of oil field geology, the drill bit needs to be deeply inserted into the oil field geology to realize drilling and auxiliary sampling. When the drill bit encounters the oil field geological layer, it will produce a moving collision. At the same time, due to the long length of the drill bit, the distance between the driving end and the other end is long, which leads to a certain deviation and inclination of the drill bit during sampling under the action of centrifugal force. It is difficult to make the drill bit part realize stable support auxiliary sampling according to the specified position, and the auxiliary sampling stability is poor. Therefore, a stable support type oil field geological auxiliary sampling equipment is needed. SUMMARY

[0005] In order to overcome the above-mentioned defects of the prior art, the present application provides the following technical scheme: a stable support type oil field geological auxiliary sampling device, comprising an auxiliary sampling cylinder, a stabilizing ring and a plurality of transverse scrapers, the stabilizing ring is fixed on the outer wall of the auxiliary sampling cylinder, a plurality of the transverse scrapers are fixedly connected to the lower surface of the stabilizing ring, a plurality of vertical scrapers are arranged below the transverse scrapers, and a plurality of the vertical scrapers are fixedly connected between the auxiliary sampling cylinder; the upper surface of the stabilizing ring is provided with a stable support linkage mechanism; the stable support linkage mechanism comprises a plurality of stable columns fixedly arranged on the upper surface of the stabilizing ring, the top end of the stable column is provided with a bearing groove ring, a plurality of the stable columns are fixedly connected between the bearing groove ring, and the outer wall of the bearing groove ring is rotatably connected with a sleeving shaft ring; the outer wall of the sleeving shaft ring is fixedly provided with a support block on one side, the top end of the support block is fixedly connected with a connecting support block, the connecting support block is fixedly provided with a reinforcing plate on one side, the reinforcing plate is fixedly connected with a sleeving block on one side, and the sleeving block is fixedly provided with a reinforcing block on one side; the reinforcing block is provided with a stable limiting mechanism on one side; and the inner wall of the reinforcing block is provided with a fluctuation detection assembly.

[0006] The bearing groove ring is rotatably connected with the auxiliary sampling cylinder, and the cross section of the bearing groove ring is in the shape of a circular ring; and the inner wall of the bearing groove ring is a smooth surface. The top end of the sleeving block is fixedly provided with a sampling motor, and the output end of the sampling motor is fixedly provided with a rotating rod; the rotating rod is fixedly connected with the auxiliary sampling cylinder, and the reinforcing plate is fixedly connected with the sampling motor. The other side of the reinforcing plate is fixedly provided with a guide sleeving block, the inner wall of the guide sleeving block is slidably connected with a guide convex strip, and the bottom end of the guide convex strip is fixedly provided with a mounting seat; the mounting seat is fixedly provided with a controller on one side, the top end of the guide convex strip is fixedly provided with a pressing cylinder, and the output end of the pressing cylinder is fixedly connected with the guide sleeving block.

[0007] The outer wall of the guide convex strip and the inner wall of the guide sleeving block are both smooth surfaces, and the guide convex strip is used for supporting the pressing cylinder.

[0008] In use, the pressing cylinder pushes the guide sleeving block downward, the guide sleeving block drives the reinforcing plate downward, the sampling motor drives the sleeving block downward, the rotating rod drives the auxiliary sampling cylinder downward, the auxiliary sampling cylinder drives the stabilizing ring to rotate, so that the plurality of vertical scrapers and the plurality of transverse scrapers can drill and take the oil field geology, the inner wall of the auxiliary sampling cylinder can sample the oil field geology, the stabilizing ring drives the plurality of stable columns to rotate, the bearing groove ring stably rotates in the sleeving shaft ring, the connecting support block supports the support block, and the bearing groove ring can stably limit the rotation in the sleeving shaft ring.

[0009] The stable limiting mechanism comprises a sliding frame fixedly arranged on one side of the reinforcing block.

[0010] The inner wall of the sliding frame is rotationally connected with a bidirectional screw rod, the top end of the sliding frame is fixedly installed with a speed reducer motor, the speed reducer motor is used to drive the rotation of the bidirectional screw rod, the bottom end of the bidirectional screw rod is fixedly installed with a torque force sensor, and the torque force sensor is fixedly connected with the sliding frame, the outer wall of the bidirectional screw rod is threadedly connected with two threaded sleeve blocks, and the outer wall of the bidirectional screw rod is oppositely and symmetrically provided with two threads.

[0011] The two threaded sleeve blocks are slidingly connected with the sliding frame, one side of each threaded sleeve block is fixedly installed with a pressing ring, the bottom end of the pressing ring is fixedly connected with a plurality of bearing sleeves, the inner wall of each bearing sleeve is rollingly connected with an extrusion ball, and the extrusion ball is rotationally connected with the bearing groove ring. The bidirectional screw rod is rotationally connected with the sliding frame, and the upper surface of the pressing ring and the upper surface of the threaded sleeve block are in the same horizontal plane.

[0012] When the speed reducer motor drives the rotation of the bidirectional screw rod, the bidirectional screw rod drives the two threaded sleeve blocks to move close to each other under the action of the thread transmission force, when the torque force value sensed by the torque force sensor is the same as the torque force value set by the controller, the speed reducer motor is started to drive the operation of the specified torque force by the controller. Meanwhile, the threaded sleeve block drives the pressing ring to move downward, the other threaded sleeve block drives the other pressing ring to move upward, the bearing sleeve drives the extrusion ball to move downward, and the plurality of extrusion balls are limited on the upper surface of the bearing groove ring.

[0013] The fluctuation detection assembly comprises an adjusting electric cylinder fixedly installed on the inner wall of the reinforcing block.

[0014] When the connecting column drives the connecting block to move downward, the support sleeve block drives the distance sensor to be located above the adjusting pressing ring.

[0015] Technical effects and advantages of the present application:

[0016] 1. This invention utilizes a stable support linkage mechanism, where multiple vertical and horizontal scrapers can drill into the oilfield geology. The inner wall of the auxiliary sampling cylinder enables sampling operations on the oilfield geology. A stabilizing ring drives multiple stabilizing columns to rotate, and a bearing groove ring rotates stably inside the sleeved shaft ring. A connecting support block provides stable support to the sleeved shaft ring, ensuring that the bottom of the auxiliary sampling cylinder is stably supported for auxiliary sampling at a designated position, thus significantly improving the stability of auxiliary sampling.

[0017] 2. This invention employs a stable limiting mechanism. A geared motor drives a bidirectional screw to rotate. The bidirectional screw causes two threaded sleeves to approach each other under the action of thread transmission force. When the torque force value sensed by the torque force sensor is the same as the torque force value set by the controller, the threaded sleeve causes the pressure ring to move down, and another threaded sleeve causes the other pressure ring to move up. Multiple extrusion balls are limited on the upper surface of the bearing groove ring, and multiple extrusion balls below are limited on the lower surface of the bearing groove ring. This achieves upper and lower surface limiting operations on the pressure ring, so that the bottom part of the auxiliary sampling cylinder is stably supported for auxiliary sampling at the specified position.

[0018] 3. This invention employs a fluctuation detection component. The adjusting electric cylinder drives the connecting column to move downwards, which in turn drives the connecting block to move downwards. The support sleeve moves the distance sensor to a position above the adjusting pressure ring. The distance sensor can be positioned at a designated location on the upper surface of the pressure ring. Multiple extrusion balls rotate and roll inside the bearing sleeve. The bearing sleeve limits the rolling of the extrusion balls, thus limiting the rotation of the bearing groove ring. When the distance value sensed by the distance sensor is the same as the distance value set by the controller, the adjusting electric cylinder is turned off by the controller to prevent the bottom of the auxiliary sampling cylinder from shaking, thereby greatly improving the stability of the auxiliary sampling.

[0019] Based on the interaction of the above-mentioned multiple functions, firstly, multiple extrusion balls are limited on the upper surface of the bearing groove ring, and multiple extrusion balls below are limited on the lower surface of the bearing groove ring. Secondly, the bearing groove ring rotates stably inside the sleeve ring. Finally, the bearing sleeve limits the rolling of the extrusion balls. This achieves the limiting rotation operation of the bearing groove ring, and the distance value sensed by the distance sensor is used for detection. In summary, this allows the bottom part of the auxiliary sampling cylinder to stably support the auxiliary sampling at a specified position, significantly improving the stability of the auxiliary sampling. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the stable support type oilfield geological auxiliary sampling equipment of the present invention.

[0021] Figure 2 This is a schematic diagram of a partial cut-off structure at the connection between the auxiliary sampling cylinder and the stabilizing ring of the present invention.

[0022] Figure 3 It is the front view partial structure schematic diagram of the sampling motor of the application.

[0023] Figure 4 It is the Figure 3 It is the enlarged structure schematic diagram of A in the application.

[0024] Figure 5 It is the front view partial structure schematic diagram of the connecting part of the guide sleeve block and the guide convex strip of the application.

[0025] Figure 6 It is the rear view structure schematic diagram of the stable support type oil field geological auxiliary sampling equipment of the application.

[0026] Figure 7 It is the truncated partial structure schematic diagram of the connecting part of the reinforcing block and the adjusting electric cylinder of the application.

[0027] Figure 8 It is the bottom view structure schematic diagram of the fluctuation detection assembly of the application.

[0028] The figure marks are as follows: 1, auxiliary sampling cylinder; 2, stabilizing ring; 3, horizontal scraper; 4, vertical scraper; 5, stabilizing column; 6, bearing groove ring; 7, sleeve joint shaft ring; 8, supporting block; 9, connecting supporting block; 10, reinforcing plate; 11, sleeve joint block; 12, reinforcing block; 13, sampling motor; 14, rotating rod; 15, guide sleeve block; 16, downward pressing electric cylinder; 17, guide convex strip; 18, controller; 19, mounting seat; 20, sliding frame; 21, bidirectional screw rod; 22, speed reduction motor; 23, torque force sensor; 24, threaded sleeve block; 25, pressing ring; 26, bearing sleeve; 27, extrusion ball; 28, adjusting electric cylinder; 29, connecting column; 30, connecting block; 31, supporting sleeve block; 32, distance sensor. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0030] As shown in the accompanying Figure 1 As shown in the accompanying Figure 8 A stable support type oil field geological auxiliary sampling equipment is shown in the accompanying drawings, which is provided with a stable support linkage mechanism, a stable limiting mechanism and a fluctuation detection assembly. The setting of each mechanism and assembly can make the bottom end part of the auxiliary sampling cylinder 1 follow the specified position, realize stable support auxiliary sampling, and greatly improve the stability of the auxiliary sampling. The specific structure settings of each mechanism and assembly are as follows.

[0031] In the technical solution, as shown in the accompanying drawings Figure 1 - the Figure 4 As shown in the accompanying drawings, the stabilizing ring 2 is fixed to the outer wall of the auxiliary sampling cylinder 1, a plurality of transverse scrapers 3 are fixedly connected to the lower surface of the stabilizing ring 2, a plurality of vertical scrapers 4 are arranged below the transverse scrapers 3 and are fixedly connected between the auxiliary sampling cylinder 1, and a stabilizing support linkage mechanism is arranged on the upper surface of the stabilizing ring 2; the stabilizing support linkage mechanism comprises a plurality of stabilizing columns 5 fixedly arranged on the upper surface of the stabilizing ring 2, a bearing groove ring 6 is arranged at the top end of each stabilizing column 5, and the stabilizing columns 5 are fixedly connected with the bearing groove ring 6, and a sleeve shaft ring 7 is rotatably connected to the outer wall of the bearing groove ring 6.

[0032] The outer wall of the sleeve shaft ring 7 is fixedly connected with a support block 8, the top end of the support block 8 is fixedly connected with a connecting support block 9, one side of the connecting support block 9 is fixedly connected with a reinforcing plate 10, one side of the reinforcing plate 10 is fixedly connected with a sleeve block 11, and one side of the sleeve block 11 is fixedly connected with a reinforcing block 12; one side of the reinforcing block 12 is provided with a stabilizing limiting mechanism; and the inner wall of the reinforcing block 12 is provided with a fluctuation detection assembly.

[0033] In the technical solution, as shown in the accompanying drawings Figure 4 - the Figure 5 As shown in the accompanying drawings, the top end of the sleeve block 11 is fixedly connected with a sampling motor 13, and the output end of the sampling motor 13 is fixedly connected with a rotating rod 14; the rotating rod 14 is fixedly connected between the auxiliary sampling cylinder 1, and the reinforcing plate 10 is fixedly connected with the sampling motor 13, so as to drive the reinforcing plate 10 to move downward, drive the sleeve block 11 to move downward, drive the rotating rod 14 to move downward, drive the auxiliary sampling cylinder 1 to move downward, and drive the plurality of vertical scrapers 4 to rotate.

[0034] The other side of the reinforcing plate 10 is fixedly connected with a guide sleeve block 15, the inner wall of the guide sleeve block 15 is slidably connected with a guide convex strip 17, the bottom end of the guide convex strip 17 is fixedly connected with a mounting seat 19; one side of the mounting seat 19 is fixedly connected with a controller 18, the top end of the guide convex strip 17 is fixedly connected with a downward pressing cylinder 16, and the output end of the downward pressing cylinder 16 is fixedly connected with the guide sleeve block 15. The outer wall of the guide convex strip 17 and the inner wall of the guide sleeve block 15 are smooth surfaces, and the guide convex strip 17 is used for supporting the downward pressing cylinder 16, so as to drive the downward pressing cylinder 16 to move downward, drive the guide sleeve block 15 to slide along the outer wall of the guide convex strip 17, drive the reinforcing plate 10 to move downward, drive the sampling motor 13 to move downward, drive the rotating rod 14 to move downward, and drive the auxiliary sampling cylinder 1 to move downward.

[0035] In the technical solution, as shown in the accompanying drawings Figure 6 - the Figure 7As shown, the stable limiting mechanism comprises a sliding frame 20 fixedly arranged on one side of the reinforcing block 12; the inner wall of the sliding frame 20 is rotationally connected with a bidirectional screw rod 21; the top end of the sliding frame 20 is fixedly installed with a speed reducer motor 22, which is used to drive the bidirectional screw rod 21 to rotate; the bottom end of the bidirectional screw rod 21 is fixedly installed with a torque force sensor 23, which is fixedly connected with the sliding frame 20; the outer wall of the bidirectional screw rod 21 is threadedly connected with two threaded sleeve blocks 24, which are oppositely and symmetrically arranged on the outer wall of the bidirectional screw rod 21.

[0036] The two threaded sleeve blocks 24 are slidingly connected with the sliding frame 20; one side of each threaded sleeve block 24 is fixedly installed with a pressing ring 25; the bottom end of the pressing ring 25 is fixedly connected with a plurality of bearing sleeves 26; the inner wall of each bearing sleeve 26 is rollingly connected with an extrusion ball 27; the extrusion ball 27 is rotationally connected with the bearing groove ring 6. The bidirectional screw rod 21 is rotationally connected with the sliding frame 20; the upper surface of the pressing ring 25 and the upper surface of the threaded sleeve block 24 are in the same horizontal plane. The plurality of extrusion balls 27 are arranged in a circular ring at equal intervals; the outer wall of the extrusion ball 27 is a smooth surface; the cross-sectional shape of the pressing ring 25 is a circular ring.

[0037] In the technical solution, as shown in the accompanying drawings, Figure 8 As shown, the fluctuation detection assembly comprises an adjusting electric cylinder 28 fixedly installed on the inner wall of the reinforcing block 12; the output end of the adjusting electric cylinder 28 is fixedly connected with a connecting column 29; the bottom end of the connecting column 29 is fixedly installed with a connecting block 30; one side of the outer wall of the connecting block 30 is fixedly connected with a supporting sleeve block 31, and the inner wall of the supporting sleeve block 31 is fixedly installed with a distance sensor 32. The cross-sectional area of the connecting block 30 is larger than that of the connecting column 29; the outer wall of the connecting column 29 is a smooth surface.

[0038] The working principle of the stable support type oil field geological auxiliary sampling equipment is as follows:

[0039] Step one, when the stable limiting mechanism is in operation, the reinforcing block 12 is supported by the sleeve block 11, the sliding frame 20 is supported by the reinforcing block 12, the speed reducer motor 22 drives the bidirectional screw rod 21 to rotate, the bidirectional screw rod 21 drives the two threaded sleeve blocks 24 to move closer to each other under the action of the threaded transmission force, and the bidirectional screw rod 21 rotates on the sensing end of the torque force sensor 23; when the torque force value sensed by the torque force sensor 23 is the same as the torque force value set by the controller 18, the controller 18 is started to drive the speed reducer motor 22 to install the specified torque force to realize the driving operation. At the same time, the threaded sleeve block 24 drives the pressing ring 25 to move downward, the other threaded sleeve block 24 drives the other pressing ring 25 to move upward, the pressing ring 25 drives the plurality of bearing sleeves 26 to move downward, the bearing sleeve 26 drives the extrusion ball 27 to move downward, the plurality of extrusion balls 27 are limited on the upper surface of the bearing groove ring 6, and the plurality of extrusion balls 27 below are limited on the lower surface of the bearing groove ring 6, so that the upper surface and the lower surface of the pressing ring 25 are limited.

[0040] Step two, when the stable support linkage, through the mounting seat 19 support controller 18, mounting seat 19 support guide convex strip 17, controller 18 start down pressure cylinder 16, and guide convex strip 17 support down pressure cylinder 16, down pressure cylinder 16 push guide sleeve block 15 down, guide sleeve block 15 along the outer wall of guide convex strip 17 down, while guide sleeve block 15 driven by reinforcing plate 10 down, reinforcing plate 10 driven by sampling motor 13 down, sampling motor 13 driven by sleeve block 11 down, sampling motor 13 driven by rotating rod 14 down, rotating rod 14 driven by auxiliary sampling cylinder 1 down, auxiliary sampling cylinder 1 driven by a plurality of vertical scraper 4 rotation, and auxiliary sampling cylinder 1 driven by stable ring 2 rotation stable ring 2 driven by a plurality of horizontal scraper 3 rotation. So a plurality of vertical scraper 4 and a plurality of horizontal scraper 3 can be drilled to the oil field geology, so that the inner wall of the auxiliary sampling cylinder 1 can realize the sampling operation of the oil field geology, stable ring 2 driven by a plurality of stable column 5 rotation, stable column 5 driven by bearing groove ring 6 rotation, bearing groove ring 6 in the sleeve shaft ring 7 inside the stable rotation, and reinforcing plate 10 support connecting block 9, connecting block 9 support block 8, block 8 can provide stable support force for sleeve shaft ring 7, bearing groove ring 6 can be stably rotated in the sleeve shaft ring 7 inside.

[0041] Step three, when the fluctuation is detected, the reinforcing block 12 supports the adjusting cylinder 28, the adjusting cylinder 28 drives the connecting column 29 down, the connecting column 29 drives the connecting block 30 down, the connecting block 30 makes the support sleeve block 31 down, and the support sleeve block 31 drives the distance sensor 32 to be located above the adjusting pressure ring 25. Then the controller 18 closes the adjusting cylinder 28, so that the distance sensor 32 can be located at the specified position of the upper surface of the pressure ring 25. When the bearing groove ring 6 rotates, it drives a plurality of extrusion balls 27 to rotate, the extrusion balls 27 roll in the bearing sleeve 26, while the threaded sleeve block 24 supports the pressure ring 25, the pressure ring 25 supports a plurality of bearing sleeves 26, the bearing sleeves 26 limit the rolling of the extrusion balls 27, so as to limit the rotation of the bearing groove ring 6. At the same time, the distance sensor 32 senses the distance of the upper surface of the pressure ring 25. When the distance value sensed by the distance sensor 32 is the same as the distance value set by the controller 18, the adjusting cylinder 28 is closed by the controller 18, so as to know that the bottom end of the auxiliary sampling cylinder 1 can be stably supported, thereby avoiding the bottom end of the auxiliary sampling cylinder 1 from shaking.

[0042] The contents not described in detail in the specification are all prior art known to those skilled in the art, and the model parameters of various electrical appliances are not specifically limited, and conventional equipment can be used. In the present technical solution, the electrical control elements not mentioned belong to the prior art, so they are not shown in the drawings and will not be described here.

[0043] The above merely describes the preferred embodiments of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A stable support type oil field geological auxiliary sampling device comprising an auxiliary sampling cylinder (1), a stabilizing ring (2) and a plurality of transverse scrapers (3), characterized in that: The stable ring (2) is fixed on the outer wall of the auxiliary sampling cylinder (1), a plurality of the transverse scrapers (3) are fixedly connected to the lower surface of the stable ring (2), a plurality of vertical scrapers (4) are arranged below the transverse scrapers (3), and the vertical scrapers (4) are fixedly connected between the auxiliary sampling cylinder (1); and the upper surface of the stable ring (2) is provided with a stable support linkage mechanism. The stable support linkage mechanism comprises a plurality of stable columns (5) fixedly arranged on the upper surface of the stable ring (2), bearing groove rings (6) are mounted at the top ends of the stable columns (5), the stable columns (5) are fixedly connected with the bearing groove rings (6), and sleeve shaft rings (7) are rotatably connected to the outer walls of the bearing groove rings (6); a support block (8) is fixedly mounted on one side of the outer wall of the sleeve shaft ring (7), a connecting support block (9) is fixedly connected to the top end of the support block (8), a reinforcing plate (10) is fixedly mounted on one side of the connecting support block (9), a sleeve block (11) is fixedly connected to one side of the reinforcing plate (10), and a reinforcing block (12) is fixedly mounted on one side of the sleeve block (11); a stable limiting mechanism is arranged on one side of the reinforcing block (12); a fluctuation detection assembly is mounted on the inner wall of the reinforcing block (12), and the fluctuation detection assembly comprises an adjusting electric cylinder (28) fixedly mounted on the inner wall of the reinforcing block (12); a connecting column (29) is fixedly connected to the output end of the adjusting electric cylinder (28), a connecting block (30) is fixedly mounted at the bottom end of the connecting column (29), a support sleeve block (31) is fixedly connected to one side of the outer wall of the connecting block (30), and a distance sensor (32) is fixedly mounted on the inner wall of the support sleeve block (31).

2. The stable support oilfield geology assisted sampling device of claim 1, wherein: The bearing groove rings (6) are rotatably connected between the auxiliary sampling cylinder (1), and the cross-sectional shape of the bearing groove rings (6) is a circular ring shape. The inner wall of the bearing groove rings (6) is a smooth surface.

3. The stable support oilfield geology aid sampling device of claim 1, wherein: A sampling motor (13) is fixedly mounted at the top end of the sleeve block (11), and a rotating rod (14) is fixedly mounted at the output end of the sampling motor (13). The rotating rod (14) is fixedly connected between the auxiliary sampling cylinder (1), and the reinforcing plate (10) is fixedly connected with the sampling motor (13).

4. The stable support oilfield geology aid sampling device of claim 1, wherein: A guide sleeve block (15) is fixedly mounted on the other side of the reinforcing plate (10), a guide convex strip (17) is slidably connected to the inner wall of the guide sleeve block (15), and a mounting seat (19) is fixedly mounted at the bottom end of the guide convex strip (17). A controller (18) is fixedly mounted on one side of the mounting seat (19), a pressing electric cylinder (16) is fixedly mounted at the top end of the guide convex strip (17), and the output end of the pressing electric cylinder (16) is fixedly connected with the guide sleeve block (15).

5. The stable support oilfield geology aid sampling device of claim 4, wherein: The outer wall of the guide convex strip (17) and the inner wall of the guide sleeve block (15) are smooth surfaces, and the guide convex strip (17) is used for supporting the pressing electric cylinder (16).

6. The stable support oilfield geology aid sampling device of claim 1, wherein: The stable limiting mechanism comprises a sliding frame (20) fixedly arranged on one side of the reinforcing block (12). The inner wall of the sliding frame (20) is rotationally connected with a bidirectional screw rod (21), the top end of the sliding frame (20) is fixedly installed with a speed reducer motor (22), the speed reducer motor (22) is used for driving the bidirectional screw rod (21) to rotate, the bottom end of the bidirectional screw rod (21) is fixedly installed with a torque force sensor (23), and the torque force sensor (23) is fixedly connected with the sliding frame (20), the outer wall of the bidirectional screw rod (21) is threadedly connected with two threaded sleeve blocks (24), and the outer wall of the bidirectional screw rod (21) is oppositely and symmetrically provided with two threads; The two threaded sleeve blocks (24) are slidably connected with the sliding frame (20), one side of each threaded sleeve block (24) is fixedly installed with a compression ring (25), the bottom end of the compression ring (25) is fixedly connected with a plurality of bearing sleeves (26), the inner wall of each bearing sleeve (26) is rollingly connected with an extrusion ball (27), and the extrusion ball (27) is rotationally connected with the bearing groove ring (6).

7. The stable support oilfield geology aid sampling device of claim 6, wherein: The bidirectional screw rod (21) is rotationally connected with the sliding frame (20), and the upper surface of the compression ring (25) and the upper surface of the threaded sleeve block (24) are in the same horizontal plane.

8. The stable support oilfield geology aid sampling device of claim 6, wherein: The plurality of extrusion balls (27) are arranged in a circular ring equidistant distribution, and the outer wall of the extrusion ball (27) is a smooth surface. The cross-sectional shape of the compression ring (25) is a circular ring.

9. The stable support oilfield geology aid sampling device of claim 1, wherein: The cross-sectional area of the connecting block (30) is greater than that of the connecting column (29), and the outer wall of the connecting column (29) is a smooth surface.

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