Underground oil casing ground detection sensor pushing device
By designing a conveyor cylinder device with push components, the problem of obstruction of sensor movement during detection of the inner wall of the oil casing is solved, and the automatic push and smooth detection of the oil casing ground detection sensor is realized, which improves detection efficiency and accuracy.
Patent Information
- Application Number
- CN202411254435.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2024-12-13
AI Technical Summary
When the existing underground oil casing ground detection sensor detects the inner wall of the oil casing, the internal smooth and oily content of the oil casing, the sensor movement is blocked and external push is required to achieve detection.
A device including a conveyor cylinder, an oil casing ground detection sensor and a push assembly is designed. The push assembly is composed of a central mechanism, a front clamping mechanism and a rear clamping mechanism. It is realized through components such as gears, stepper motors and movable grooves. The automatic forward push of the conveyor cylinder ensures smooth movement of the sensor and detects the inner wall of the oil sleeve.
Through the cooperation of the push assembly, the conveyor barrel can be automatically pushed forward in the event of slippage, ensuring that the oil casing ground detection sensor can smoothly detect the inner wall of the oil casing, improving detection efficiency and accuracy.
Smart Images
Figure CN119123226A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the field of oil casing ground detection, and specifically discloses a sensor pushing device for underground oil casing ground detection. Background Art
[0002] Downhole oil casing ground inspection, this technology directly detects oil casing leakage on the ground through ground inspection, avoiding many inconveniences and high costs of logging operations, so it has strong research value and application prospects. Downhole oil casing ground inspection technology may include but is not limited to appearance inspection, size inspection, waveform defect detection, ultrasonic flaw detection, magnetic particle flaw detection and other methods. These methods work together to comprehensively detect the quality and integrity of oil casing and ensure their safe and effective use in the oil production process.
[0003] When the existing downhole oil casing ground detection sensor detects the inner wall of the oil casing, the movement of the oil casing ground detection sensor is hindered because the inside of the oil casing is smooth and contains oil stains, and the oil casing ground detection sensor needs to be pushed by the outside to move. Summary of the invention
[0004] In view of this, the purpose of the present invention is to propose a downhole oil casing ground detection sensor pushing device to solve the problem in the prior art that when detecting the inner wall of the oil casing, the movement of the oil casing ground detection sensor is hindered because the inside of the oil casing is smooth and contains oil stains, and the external environment is required to push the oil casing ground detection sensor to move.
[0005] To achieve the above objectives, the present invention provides a downhole oil casing ground detection sensor pushing device, including a conveying cylinder, characterized in that an oil casing ground detection sensor is arranged in front of the conveying cylinder, a pushing assembly is connected to the rear of the conveying cylinder, the pushing assembly includes a central mechanism, a front clamping mechanism and a rear clamping mechanism, the front clamping mechanism is installed in front of the central mechanism, and the front end of the front clamping mechanism is fixedly connected to the conveying cylinder, the rear clamping mechanism is installed behind the central mechanism, a pushing mechanism is arranged inside the central mechanism, movable grooves are opened inside the front clamping mechanism and the rear clamping mechanism, and a pushing mechanism is arranged inside the movable groove.
[0006] In the above technical scheme, preferably, the pushing mechanism includes a gear, which is rotatably installed at the center of the central mechanism, an upper slide bar is slidably arranged above the gear, a first side block is fixedly installed at the front end of the upper slide bar, the first side block is connected to the front clamping mechanism by bolts, a first rack is arranged on the surface of the upper slide bar, the first rack is meshed with the gear, a lower slide bar is slidably arranged below the gear, a second side block is fixedly installed at the rear end of the lower slide bar, the second side block is connected to the rear clamping mechanism by bolts, a second rack is arranged on the surface of the lower slide bar, the second rack is meshed with the gear, a second stepping motor is installed on the outer surface of the central mechanism, and the output end of the second stepping motor is connected to the gear.
[0007] In the above technical scheme, preferably, the front end of the front clamping mechanism and the rear end of the rear clamping mechanism are both equipped with a first stepper motor, the first stepper motor at the front end of the front clamping mechanism is installed in the conveying cylinder, and the output end of the first stepper motor is connected to the pushing mechanism, and the pushing mechanism includes a pushing block, and the front and rear end surfaces of the pushing block are both equipped with tilting blocks, a second movable bar is arranged above the tilting block near one end of the first stepper motor, and a first movable bar is arranged above the tilting block at the other end, the bottoms of the first movable bar and the second movable bar are both provided with inclined surfaces corresponding to the tilting blocks, the top of the first movable bar is provided with a first curved surface, and the top of the second movable bar is provided with a second curved surface.
[0008] In the above technical solution, preferably, an auxiliary sliding mechanism is provided on the surface of the second arcuate surface, and the auxiliary sliding mechanism comprises a groove, and the groove is provided in the middle of the second arcuate surface, and an auxiliary wheel is rotatably provided inside the groove.
[0009] In the above technical solution, preferably, two limiting bosses are symmetrically installed on the side of the movable groove, and the middle end surfaces of the first movable bar and the second movable bar are respectively penetrated by the first limiting groove and the second limiting groove, and the first limiting groove and the second limiting groove are respectively movably connected to the surfaces of the two limiting bosses, and a spring is installed under the limiting boss.
[0010] In the above technical solution, preferably, a convex piece is provided at the front end of the conveying cylinder, and the oil casing ground detection sensor is installed on the surface of the convex piece by means of bolts.
[0011] In the above technical solution, preferably, six transmission mechanisms are evenly arranged on the outer surface of the conveying cylinder, and the transmission mechanism includes a support plate, which is fixedly installed on the surface of the conveying cylinder, and a triangular bracket is installed at the end of the support plate, and a roller is arranged at the end of the triangular bracket.
[0012] In the above technical solution, preferably, the horizontal height of the first arc surface and the second arc surface after being fully extended is consistent with that of the roller.
[0013] Compared with the prior art, the present invention has the following beneficial effects: by arranging a ground detection sensor for the oil casing in front of the conveying cylinder, the ground detection sensor for the oil casing can detect the inner wall of the oil casing as the conveying cylinder continuously moves forward; and by arranging a pushing assembly, with the cooperation of the central mechanism, the front clamping mechanism and the rear clamping mechanism, when the conveying cylinder slips, the conveying cylinder can be pushed forward, thereby assisting the movement of the conveying cylinder and achieving a smooth detection effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;
[0015] Figure 2 It is a schematic structural diagram of the overall present invention from another perspective;
[0016] Figure 3 It is a schematic diagram of the structure of the push mechanism of the present invention;
[0017] Figure 4 It is a structural schematic diagram of the push mechanism of the present invention from another perspective;
[0018] Figure 5 For the present invention Figure 4 The enlarged view of point A in the middle;
[0019] Figure 6 It is a schematic partial cross-sectional view of the front view of the pushing component of the present invention.
[0020] In the figure: 1, conveying cylinder; 2, oil casing ground detection sensor; 3, pushing assembly; 4, center mechanism; 5, front clamping mechanism; 6, rear clamping mechanism; 7, first stepping motor; 8, pushing mechanism; 9, movable groove; 10, pushing block; 11, tilting block; 12, first movable bar; 13, first limiting groove; 14, first arc surface; 15, second movable bar; 16, second limiting groove; 17, second arc surface; 18, limiting convex column; 19, spring; 20, auxiliary sliding mechanism; 21, groove; 22, auxiliary wheel; 23, second stepping motor; 24, pushing mechanism; 25, upper slide bar; 26, first side block; 27, first rack; 28, lower slide bar; 29, second side block; 30, second rack; 31, gear; 32, transmission mechanism; 33, support sheet; 34, triangular bracket; 35, roller. DETAILED DESCRIPTION
[0021] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.
[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0023] like Figure 1 - Figure 6 The shown downhole oil casing ground detection sensor pushing device comprises a conveying cylinder 1, an oil casing ground detection sensor 2 is arranged in front of the conveying cylinder 1, a pushing assembly 3 is connected to the rear of the conveying cylinder 1, the pushing assembly 3 comprises a central mechanism 4, a front clamping mechanism 5 and a rear clamping mechanism 6, the front clamping mechanism 5 is installed in front of the central mechanism 4, and the front end of the front clamping mechanism 5 is fixedly connected to the conveying cylinder 1, the rear clamping mechanism 6 is installed at the rear of the central mechanism 4, a pushing mechanism 24 is arranged inside the central mechanism 4, and movable grooves 9 are opened inside the front clamping mechanism 5 and the rear clamping mechanism 6, and a pushing mechanism 8 is arranged inside the movable groove 9.
[0024] The pushing mechanism 24 includes a gear 31, which is rotatably mounted at the center of the central mechanism 4. An upper slide bar 25 is slidably arranged above the gear 31, and a first side block 26 is fixedly mounted at the front end of the upper slide bar 25. The first side block 26 is connected to the front clamping mechanism 5 by bolts. A first rack 27 is arranged on the surface of the upper slide bar 25, and the first rack 27 is meshed with the gear 31. A lower slide bar 28 is slidably arranged below the gear 31, and a second side block 29 is fixedly mounted at the rear end of the lower slide bar 28. The second side block 29 is connected to the rear clamping mechanism 6 by bolts. A second rack 30 is arranged on the surface of the lower slide bar 28, and the second rack 30 is meshed with the gear 31. When the gear 31 When rotating counterclockwise, the upper slide bar 25 and the lower slide bar 28 are respectively displaced to the two sides of the center mechanism 4 under the action of the first rack 27 and the second rack 30, thereby realizing the situation of pushing the front clamping mechanism 5 and the rear clamping mechanism 6 to the two sides of the center mechanism 4. When the gear 31 rotates clockwise, similarly, the upper slide bar 25 and the lower slide bar 28 can gradually shrink into the inside of the center mechanism 4. At this time, the front clamping mechanism 5 and the rear clamping mechanism 6 are simultaneously displaced toward the direction of the center mechanism 4. A second stepper motor 23 is installed on the outer surface of the center mechanism 4. The output end of the second stepper motor 23 is connected to the gear 31. The second stepper motor 23 can effectively control the rotation of the gear 31, thereby achieving the above-mentioned effect.
[0025] The front end of the front clamping mechanism 5 and the rear end of the rear clamping mechanism 6 are both installed with a first stepper motor 7. The first stepper motor 7 at the front end of the front clamping mechanism 5 is installed in the conveying cylinder 1. The output end of the first stepper motor 7 is connected to the pushing mechanism 8. The pushing mechanism 8 includes a pushing block 10. The front and rear end surfaces of the pushing block 10 are both installed with tilting blocks 11. A second movable bar 15 is arranged above the tilting block 11 at one end close to the first stepper motor 7, and a first movable bar 12 is arranged above the tilting block 11 at the other end. The bottoms of the first movable bar 12 and the second movable bar 15 are both provided with inclined surfaces corresponding to the tilting block 11. The top of the first movable bar 12 is provided with a first arcuate surface 14, and the top of the second movable bar 15 is provided with a second arcuate surface 17. When the pushing mechanism 8 inside the rear clamping mechanism 6 is pushed toward the center mechanism 4, the tilting block 11 has an outward squeezing effect on the inclined surface at the bottom of the first movable bar 12, so that the first movable bar 12 moves outward, and the first arcuate surface 14 expands outward and is clamped on the inner wall of the oil casing. At this time, under the action of the first arcuate surface 14, the rear clamping mechanism 6 can be positioned in the oil casing. When the pushing mechanism 8 inside the front clamping mechanism 5 is pushed toward the center mechanism 4, the tilting block 11 has an outward squeezing effect on the inclined surface at the bottom of the first movable bar 12, so that the first movable bar 12 moves outward, and the first arcuate surface 14 expands outward and is clamped on the inner wall of the oil casing. At this time, under the action of the first arcuate surface 14, the front clamping mechanism 5 can be positioned in the oil casing.
[0026] The surface of the second curved surface 17 is provided with an auxiliary sliding mechanism 20, and the auxiliary sliding mechanism 20 includes a groove 21, and the groove 21 is provided in the middle of the second curved surface 17. An auxiliary wheel 22 is rotatably provided inside the groove 21. When the pushing mechanism 8 pushes in the opposite direction to the central mechanism 4, the tilting block 11 has an outward squeezing effect on the inclined surface at the bottom of the second movable bar 15, so that the second movable bar 15 moves outward, the second curved surface 17 expands outward, and the auxiliary wheel 22 is close to the inner wall of the oil casing. At this time, the auxiliary sliding mechanism 20 can assist the conveying cylinder 1 to move, thereby reducing the workload of the conveying cylinder 1.
[0027] Two limiting bosses 18 are symmetrically installed on the side of the movable groove 9, and the middle end surfaces of the first movable bar 12 and the second movable bar 15 are respectively penetrated by the first limiting groove 13 and the second limiting groove 16. The first limiting groove 13 and the second limiting groove 16 are respectively movably sleeved on the surfaces of the two limiting bosses 18, and a spring 19 is installed under the limiting boss 18. Under the action of the spring 19, the first movable bar 12 and the second movable bar 15 will shrink towards the front clamping mechanism 5 and the rear clamping mechanism 6 under the elastic force of the spring 19 in the absence of external force to avoid sliding.
[0028] A convex piece is provided at the front end of the transmission cylinder 1 , and the oil casing ground detection sensor 2 is installed on the surface of the convex piece by means of bolts, so as to realize the installation of the oil casing ground detection sensor 2 .
[0029] Six transmission mechanisms 32 are evenly arranged on the outer surface of the transmission cylinder 1. The transmission mechanism 32 includes a support plate 33. The support plate 33 is fixedly installed on the surface of the transmission cylinder 1. A triangular bracket 34 is installed at the end of the support plate 33. A roller 35 is arranged at the end of the triangular bracket 34. Through the six transmission mechanisms 32, the transmission cylinder 1 can be smoothly moved inside the oil casing to realize the exploration and detection of the inner wall of the oil casing.
[0030] After the first arc surface 14 and the second arc surface 17 are fully extended, their horizontal heights are consistent with the roller 35, ensuring that the first arc surface 14 and the second arc surface 17 can be close to the inner wall of the oil casing.
[0031] Working principle: the transmission cylinder 1 is continuously moved forward inside the oil casing. At this time, the oil casing ground detection sensor 2 can detect the inner wall of the oil casing. When the transmission cylinder 1 encounters slippage, obstacles, etc., first, the first stepper motor 7 is used to push the pushing mechanism 8 inside the rear clamping mechanism 6 toward the center mechanism 4. The tilting block 11 has an outward squeezing effect on the inclined surface at the bottom of the first movable bar 12, so that the first movable bar 12 moves outward, and the first arc surface 14 expands outward and is clamped on the inner wall of the oil casing. At this time, under the action of the first arc surface 14, the rear clamping mechanism 6 can be positioned in the oil casing. Then, the second stepper motor 23 is used to rotate the gear 31 counterclockwise, and the upper slide bar 25 and the lower slide bar 28 are respectively displaced to the two sides of the center mechanism 4 under the action of the first rack 27 and the second rack 30. Since the first arc surface 14 outside the rear clamping mechanism 6 is positioned on the inner wall of the oil casing, the center mechanism 4 and the front clamping mechanism The mechanism 5 and the conveying cylinder 1 can move forward at the same time, and then the first stepper motor 7 pushes the pushing mechanism 8 inside the front clamping mechanism 5 toward the center mechanism 4, and the tilting block 11 has an outward squeezing effect on the inclined surface at the bottom of the first movable bar 12, so that the first movable bar 12 moves outward, and the first arcuate surface 14 expands outward and is clamped on the inner wall of the oil casing. At this time, under the action of the first arcuate surface 14, the front clamping mechanism 5 is positioned in the oil casing, and then the first arcuate surface 14 on the outer side of the rear clamping mechanism 6 is contracted. At this time, the gear 31 rotates clockwise, and the upper slide bar 25 and the lower slide bar 28 can gradually contract to the inside of the center mechanism 4. Since the first arcuate surface 14 on the outer side of the front clamping mechanism 5 is positioned on the inner wall of the oil casing, the center mechanism 4 and the front clamping mechanism 5 can move forward at the same time, which can realize that when the conveying cylinder 1 slips, the conveying cylinder 1 is pushed forward, and the conveying cylinder 1 is assisted to move, so as to achieve the purpose of smooth detection.
[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.
Claims
1. A downhole oil casing ground detection sensor pushing device, comprising a transmission cylinder (1), characterized in that: A surface detection sensor (2) for oil casing is arranged in front of the conveying cylinder (1), and a pushing assembly (3) is connected to the rear of the conveying cylinder (1). The pushing assembly (3) comprises a central mechanism (4), a front clamping mechanism (5) and a rear clamping mechanism (6). The front clamping mechanism (5) is installed in front of the central mechanism (4), and the front end of the front clamping mechanism (5) is fixedly connected to the conveying cylinder (1). The rear clamping mechanism (6) is installed behind the central mechanism (4). A pushing mechanism (24) is arranged inside the central mechanism (4). Both the front clamping mechanism (5) and the rear clamping mechanism (6) are provided with movable grooves (9), and a pushing mechanism (8) is arranged inside the movable groove (9).
2. A downhole oil casing ground detection sensor pushing device according to claim 1, characterized in that: The pushing mechanism (24) comprises a gear (31), the gear (31) is rotatably mounted at the center of the central mechanism (4), an upper slide bar (25) is slidably arranged above the gear (31), a first side block (26) is fixedly mounted at the front end of the upper slide bar (25), the first side block (26) is connected to the front clamping mechanism (5) by bolts, a first rack (27) is arranged on the surface of the upper slide bar (25), the first rack (27) is meshed with the gear (31), and the gear (27) is meshed with the gear (31). A lower slide bar (28) is slidably arranged below the wheel (31), a second side block (29) is fixedly installed at the rear end of the lower slide bar (28), the second side block (29) is connected to the rear clamping mechanism (6) by bolts, a second rack (30) is arranged on the surface of the lower slide bar (28), the second rack (30) is meshed with the gear (31), a second stepping motor (23) is installed on the outer surface of the central mechanism (4), and the output end of the second stepping motor (23) is connected to the gear (31).
3. A downhole oil casing ground detection sensor pushing device according to claim 1, characterized in that: A first stepper motor (7) is installed at the front end of the front clamping mechanism (5) and the rear end of the rear clamping mechanism (6). The first stepper motor (7) at the front end of the front clamping mechanism (5) is installed in the conveying cylinder (1). The output end of the first stepper motor (7) at the front end of the front clamping mechanism (5) is connected to the pushing mechanism (8). The pushing mechanism (8) includes a pushing block (10). The front and rear end surfaces of the pushing block (10) are both equipped with tilting blocks (11) near the front clamping mechanism. A first stepper motor (7) at the front end of the structure (5) is provided with a second movable bar (15) above the tilting block (11) at one end, and a first movable bar (12) is provided above the tilting block (11) at the other end, the first movable bar (12) and the second movable bar (15) are both provided with inclined surfaces corresponding to the tilting block (11) at the bottom, the first movable bar (12) is provided with a first arcuate surface (14) at the top end, and the second movable bar (15) is provided with a second arcuate surface (17) at the top end.
4. A downhole oil casing ground detection sensor pushing device according to claim 3, characterized in that: The surface of the second arc-shaped surface (17) is provided with an auxiliary sliding mechanism (20), and the auxiliary sliding mechanism (20) comprises a groove (21), and the groove (21) is provided in the middle of the second arc-shaped surface (17), and an auxiliary wheel (22) is rotatably provided inside the groove (21).
5. A downhole oil casing ground detection sensor pushing device according to claim 3, characterized in that: Two limiting bosses (18) are symmetrically installed on the side of the movable groove (9); the middle end surfaces of the first movable bar (12) and the second movable bar (15) are respectively penetrated by a first limiting groove (13) and a second limiting groove (16); the first limiting groove (13) and the second limiting groove (16) are respectively movably sleeved on the surfaces of the two limiting bosses (18); and a spring (19) is installed below the limiting boss (18).
6. A downhole oil casing ground detection sensor pushing device according to claim 1, characterized in that: The front end of the transmission cylinder (1) is provided with a convex piece, and the oil casing ground detection sensor (2) is installed on the surface of the convex piece by means of bolts.
7. A downhole oil casing ground detection sensor pushing device according to claim 3, characterized in that: Six transmission mechanisms (32) are evenly arranged on the outer surface of the conveying cylinder (1), and the transmission mechanism (32) comprises a support plate (33), the support plate (33) is fixedly mounted on the surface of the conveying cylinder (1), a triangular bracket (34) is mounted at the end of the support plate (33), and a roller (35) is arranged at the end of the triangular bracket (34).
8. A downhole oil casing ground detection sensor pushing device according to claim 7, characterized in that: When the first arc-shaped surface (14) and the second arc-shaped surface (17) are fully extended, their horizontal heights are consistent with the height of the roller (35).