Coal bed gas horizontal well geosteering device

Abstract

The utility model discloses a coal bed gas horizontal well geosteering device, which relates to the technical field of geosteering equipment, and comprises a base, a sliding seat is arranged on the base in a sliding manner, a positioning plate is mounted on the sliding seat, the top end of the positioning plate is connected with a drill rod through a bearing, a driven gear is mounted at the tail end of the drill rod, and the driven gear is meshed with the sliding seat. The driven gear is meshed with a transmission gear, the transmission gear is driven by a motor, and a sliding groove is formed in the drill rod. According to the coal bed gas horizontal well geosteering device, the arranged pushing structure drives the linkage rod to slide in the sliding groove, the adjusting plate can be driven to deviate with the positioning shaft as the axis through cooperation of the mounting groove, the swing groove, the pushing rod and the positioning shaft, and the adjusting plate drives the drill bit to conduct deviation adjustment relative to the drill rod; the structure is integrally arranged on the inner side of the drill rod and can be protected, the driving source is arranged at the tail end of the drill rod through linkage of the linkage rod, and power supply is not affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to geological orientation equipment technical field, concretely is a coalbed gas horizontal well geological orientation device. BACKGROUND

[0002] The coalbed gas horizontal well geological orientation device realizes the accurate orientation of the drill bit in the horizontal well through specific technical means, thereby ensuring that the drilling trajectory can accurately pass through the coal seam and improving the exploitation efficiency of the coalbed gas. This device usually combines advanced sensors, data processing systems and control mechanisms to realize real-time geological orientation and drilling control.

[0003] Chinese patent publication No. CN221879300U discloses a coalbed gas horizontal well geological orientation device, which realizes the adjustment of the included angle and the inclination position of the drill bit relative to the drill pipe and the eccentric rotation of the drill bit by setting the first steering joint, the second steering joint, the adjusting mechanism, the hinged seat and the telescopic rod between the drill bit and the drill pipe, so that the drill bit can advance freely in the horizontal direction. The first steering joint, the second steering joint, the adjusting mechanism, the hinged seat and the telescopic rod of the technical solution of this patent are all arranged on the outer side of the drill pipe, which is easy to be damaged by external factors. At the same time, the rotation of the drill pipe causes the power supply problem of the telescopic rod to be difficult to solve. Therefore, the present application proposes a coalbed gas horizontal well geological orientation device to solve the above problems. UTILITY MODEL CONTENTS

[0004] (I) Technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides a coalbed gas horizontal well geological orientation device to solve the technical problems raised in the above background.

[0006] (II) Technical solution

[0007] To achieve the above purposes, the utility model adopts the technical scheme: a coalbed gas horizontal well geological orientation device, including the base, the base is provided with the sliding seat on the sliding, the sliding seat is installed with the positioning plate, and the positioning plate top end is connected with the drill pipe through the bearing, and the tail end of the drill pipe is installed with the driven gear, and the driven gear engages the transmission gear, and the transmission gear is driven by the motor, the drill pipe is provided with the sliding slot, and the linkage rod is slidably arranged in the sliding slot, the front end of the drill pipe is provided with the installation groove, the front end of the linkage rod is provided with the swing groove, and the front side of the swing groove is provided with the push rod, and the front side of the installation groove is provided with the positioning shaft, and the installation groove is provided with the adjusting plate, and the adjusting plate one side is provided with the inclined long slot, and the adjusting plate other side is installed with the drill bit, and the adjusting plate is provided with the positioning slot close to the drill bit, and the long slot is provided with the push rod, and the positioning slot is provided with the positioning shaft, and the tail end of the linkage rod is connected with the telescopic end of the push structure through the connecting piece.

[0008] Preferably, the connecting piece comprises a T-shaped inner sleeve rod and a T-shaped slot is formed in the inner side of the outer sleeve rod, the inner sleeve rod is sleeved in the T-shaped slot of the outer sleeve rod, the inner sleeve rod is connected with the linkage rod, and the outer sleeve rod is connected with the telescopic end of the pushing structure.

[0009] Preferably, the pushing structure is an electric push rod or a hydraulic telescopic rod.

[0010] Preferably, a screw rod is connected in the threaded groove in the bottom side of the sliding seat, one end of the screw rod is connected with the base through a bearing, the screw rod is driven by a reversible motor, and the reversible motor is installed on the base.

[0011] Preferably, a support groove is formed in the front end of the base, and the drill rod passes through the support groove.

[0012] Preferably, the end of the long slot is located at the middle position of the end of the adjusting plate.

[0013] Preferably, the sliding groove and the linkage rod are square.

[0014] (Three) beneficial effects

[0015] The beneficial effects of the utility model lie in:

[0016] The coal bed gas horizontal well geological guiding device drives the linkage rod to slide in the sliding groove through the driving of the pushing structure, and through the cooperation of the mounting groove, the swing groove, the pushing rod and the positioning shaft, the adjusting plate can be driven to deviate around the positioning shaft, the drill bit is deviated and adjusted relative to the drill rod driven by the adjusting plate, so that the drill bit can freely guide forward in the horizontal direction, the structure is integrally arranged on the inner side of the drill rod, can protect the structure, and the driving source is arranged at the end of the drill rod through the linkage of the linkage rod, and power supply is not affected. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0018] Figure 2 It is a three-dimensional structure schematic view of the driving part of the utility model;

[0019] Figure 3 It is a three-dimensional structure schematic view of the adjusting plate assembled in the swing groove of the utility model;

[0020] Figure 4 It is a three-dimensional structure schematic view of the adjusting plate and the swing groove in the separated state of the utility model;

[0021] Figure 5 It is a three-dimensional sectional structure schematic view of the connecting piece of the utility model.

[0022] In the diagram: 1. Base, 2. Slide, 3. Screw, 4. Forward and reverse motors, 5. Positioning plate, 6. Drill rod, 7. Driven gear, 8. Transmission gear, 9. Motor, 10. Slide groove, 11. Linkage rod, 12. Mounting groove, 13. Swing groove, 14. Push rod, 15. Positioning shaft, 16. Adjusting plate, 17. Long groove, 18. Positioning groove, 19. Drill bit, 20. Connector, 201. Inner sleeve rod, 202. Outer sleeve rod, 21. Pushing structure. Detailed Implementation

[0023] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] like Figures 1-5 As shown, this utility model provides a technical solution: a geological guiding device for a coalbed methane horizontal well, including a base 1, a sliding seat 2 slidably disposed on the base 1, a positioning plate 5 installed on the sliding seat 2, and the top end of the positioning plate 5 connected to a drill rod 6 via a bearing. A support groove is provided at the front end of the base 1, through which the drill rod 6 passes. A driven gear 7 is installed at the end of the drill rod 6, meshing with a transmission gear 8, which is driven by a motor 9. A sliding groove 10 is provided inside the drill rod 6, and a linkage rod 11 slides within the sliding groove 10. Both the sliding groove 10 and the linkage rod 11 are square. An installation groove 12 is provided at the front end of the drill rod 6, and a swing groove 13 is provided at the front end of the linkage rod 11. A push rod 14 is provided at the front side of the swing groove 13, and a positioning shaft 15 is provided at the front side of the installation groove 12. An adjusting plate 16 is provided within the installation groove 12, and one side of the adjusting plate 16 has an inclined... The long groove 17 has its end located at the middle of the end of the adjusting plate 16. A drill bit 19 is installed on the other side of the adjusting plate 16. A positioning groove 18 is provided on the adjusting plate 16 near the drill bit 19. A push rod 14 is fitted inside the long groove 17, and a positioning shaft 15 is fitted inside the positioning groove 18. The end of the linkage rod 11 is connected to the telescopic end of the push structure 21 through the connector 20. The push structure 21 is installed on the upper side of the slide block 2. The telescopic end of the push structure 21 extends out and can push the linkage rod 11 to slide in the slide groove 10. The push rod 14 at the front end of the linkage rod 11 will slide forward in the long groove 17. Since the long groove 17 is inclined, the adjusting plate 16 will rotate around the connection between the positioning shaft 15 and the positioning groove 18. The adjusting plate 16 will drive the drill bit 19 to deflect. The drill bit 19 will rotate eccentrically, so that the drill bit 19 can be freely guided forward in the horizontal direction.

[0025] The connecting piece 20 comprises a T-shaped inner sleeve rod 201 and a T-shaped slot is formed in the outer sleeve rod 202, the T-shaped slot is circular, the inner sleeve rod 201 is sleeved in the T-shaped slot of the outer sleeve rod 202, the relative rotation between the inner sleeve rod 201 and the outer sleeve rod 202 is realized, the inner sleeve rod 201 is connected with the linkage rod 11, and the outer sleeve rod 202 is connected with the telescopic end of the pushing structure 21, the pushing structure 21 is an electric push rod or a telescopic rod driven by hydraulic pressure, when the linkage rod 11 rotates along with the drill rod 6, the inner sleeve rod 201 can rotate along with the linkage rod 11 through the connection of the inner sleeve rod 201 and the outer sleeve rod 202, the outer sleeve rod 202 guarantees the connection with the telescopic end of the pushing structure 21, and the telescopic end of the pushing structure 21 can drive the movement of the linkage rod 11.

[0026] The screw rod 3 is connected in the threaded groove in the bottom side of the sliding seat 2, one end of the screw rod 3 is connected with the base 1 through a bearing, the screw rod 7 is driven by the reversible motor 4, and the reversible motor 4 is installed on the base 1.

[0027] The operation steps of the present application are as follows:

[0028] The switch on the top side of the sliding seat 2 can control the opening or closing of the power supply of the device, the motor 9 drives the transmission gear 8 to rotate, the transmission gear 8 drives the drill rod 6 to rotate through the meshing with the driven gear 7, the rotation of the drill bit 19 is realized, the screw rod 7 rotates to drive the sliding seat 2 to move back and forth on the base 1 under the drive of the reversible motor 4, and then the drill bit 19 is driven to drill into operation, the telescopic end of the pushing structure 21 is extended to push the linkage rod 11 to slide in the sliding groove 10, the pushing rod 14 at the front end of the linkage rod 11 slides to the front side in the long slot 17, the adjusting plate 16 rotates around the connecting place of the positioning shaft 15 and the positioning slot 18 due to the inclination of the long slot 17, the adjusting plate 16 drives the drill bit 19 to deviate, the drill bit 19 rotates eccentrically, and thus the drill bit 19 can be guided to advance freely in the horizontal direction.

[0029] In the description of the present application, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0030] In the utility model, unless another definite provision and limitation, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be two element inside's intercommunication or two element's mutual action relation, unless another definite limitation, for ordinary skill in the art to the person, can understand the specific meaning of the above-mentioned terms in the utility model according to specific circumstances.

[0031] Although the embodiments of the utility model have been shown and described, for ordinary skilled in the art, it can be understood that the embodiments can be changed, modified, replaced and changed in various ways without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A coal bed methane horizontal well geosteering device comprising a base (1), characterised in that: The base (1) is provided with a sliding seat (2) on the base (1), the sliding seat (2) is provided with a positioning plate (5), the positioning plate (5) is connected with a drill rod (6) through a bearing at the top end of the positioning plate (5), a driven gear (7) is installed at the end of the drill rod (6), the driven gear (7) is engaged with a transmission gear (8), the transmission gear (8) is driven by a motor (9), a sliding groove (10) is formed in the drill rod (6), a linkage rod (11) is slidably arranged in the sliding groove (10), an installation groove (12) is formed at the front end of the drill rod (6), an oscillating groove (13) is formed at the front end of the linkage rod (11), a push rod (14) is arranged in the oscillating groove (13), a positioning shaft (15) is arranged in the front side of the installation groove (12), an adjusting plate (16) is arranged in the installation groove (12), an inclined long groove (17) is formed at one side of the adjusting plate (16), a drill bit (19) is installed at the other side of the adjusting plate (16), a positioning groove (18) is formed in the adjusting plate (16) near the drill bit (19), the push rod (14) is sleeved in the long groove (17), and the positioning shaft (15) is sleeved in the positioning groove (18), the end of the linkage rod (11) is connected with the telescopic end of a push structure (21) through a connecting piece (20).

2. The coal bed methane horizontal well geosteering apparatus of claim 1, wherein: The connecting piece (20) comprises an inner sleeve rod (201) with a T-shaped vertical section and an outer sleeve rod (202) with a T-shaped groove formed in the inner side, the inner sleeve rod (201) is sleeved in the T-shaped groove of the outer sleeve rod (202), the inner sleeve rod (201) is connected with the linkage rod (11), and the outer sleeve rod (202) is connected with the telescopic end of the push structure (21).

3. The coal bed methane horizontal well geosteering apparatus of claim 1, wherein: The push structure (21) is an electric push rod or a hydraulic telescopic rod.

4. The coal bed gas horizontal well geosteering apparatus of claim 1, wherein: A screw rod (3) is connected in the threaded groove at the bottom side of the sliding seat (2), one end of the screw rod (3) is connected with the base (1) through a bearing, the screw rod (3) is driven by a reversible motor (4), and the reversible motor (4) is installed on the base (1).

5. The coal bed gas horizontal well geosteering apparatus of claim 1, wherein: A support groove is formed at the front end of the base (1), and the drill rod (6) passes through the support groove.

6. The coal bed gas horizontal well geosteering apparatus of claim 1, wherein: The end of the long groove (17) is located at the middle position of the end of the adjusting plate (16).

7. The coal bed gas horizontal well geosteering apparatus of claim 1, wherein: The sliding groove (10) and the linkage rod (11) are both square.

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