CN115749746A - High-precision dynamic self-orientation identification while-drilling instrument - Google Patents

Abstract

The invention relates to the field of drilling equipment, in particular to a high-precision dynamic self-orientation identification while-drilling instrument. It includes: a directional while drilling main body; a storage module; the dynamic orientation adjusting mechanism while drilling comprises a cylindrical shell, a plurality of groups of top wall assemblies and a driving mechanism, wherein the cylindrical shell is hollow inside, a plurality of channels are uniformly arranged on the outer circumferential surface in an annular mode, the top wall assemblies are uniformly distributed around the central axis of the shell and correspondingly penetrate through the channels, the driving mechanism is used for driving the top wall assemblies to extend outwards through the channels, and the driving mechanism is configured to select one at a time to eject the top wall assemblies to the inner wall of a drilling well through the channels so as to adjust the drilling orientation until the drilling orientation of a drill bit is corrected to be a preset drilling orientation from an offset orientation; and the central controller compares the real-time drilling azimuth data with preset drilling azimuth data and controls the dynamic azimuth adjusting mechanism while drilling to correct the drilling azimuth. The invention can automatically monitor and correct the drilling position of the drill bit, thereby saving time, and improving the drilling efficiency and the accuracy of the drilling position.

Description

High-precision dynamic self-orientation identification while-drilling instrument

Technical Field

The invention relates to the field of drilling equipment, in particular to a high-precision dynamic self-orientation identification while-drilling instrument.

Background

In the field of drilling, as the depth of a borehole drilled by drilling equipment is gradually increased, the underground geological environment is complex, and a special monitoring instrument is required to monitor the underground environment and the drilling condition of a drill bit. In the drilling process, drilling position information of a drilling tool in a well can be monitored through a drilling instrument, monitored data are transmitted to a workbench monitoring terminal, and a worker can control the drilling position of a drill bit through the monitoring terminal.

For the existing drilling equipment, when the drill bit drills, the position of the drill bit is easy to deviate due to the complex underground structure, the drilling operation in the set position cannot be realized, manual intervention is needed, the drilling position of the drill bit is adjusted to the correct position, and if the position deviation is found out manually and is not timely, the drilling progress can be influenced.

Disclosure of Invention

The invention aims to provide a high-precision dynamic self-orientation recognition while-drilling instrument which can automatically monitor and correct the drilling orientation of a drill bit so as to save time and improve the drilling efficiency and the drilling orientation accuracy.

The technical scheme of the invention is that a high-precision dynamic self-orientation identification while-drilling instrument comprises: a direction-while-drilling body configured to monitor a drill bit drilling orientation; a storage module configured to pre-store drilling position data; the dynamic orientation adjusting mechanism while drilling comprises a cylindrical shell, a plurality of groups of top wall assemblies and a driving mechanism, wherein the cylindrical shell is hollow inside, a plurality of channels are uniformly arranged on the outer circumferential surface in an annular mode, the top wall assemblies are uniformly distributed around the central axis of the shell and correspondingly penetrate through the channels, the driving mechanism is used for driving the top wall assemblies to extend outwards through the channels, the driving mechanism is configured to select one of the top wall assemblies at a time and eject the top wall assembly to the inner wall of a drilling well through the channels so as to adjust the drilling orientation until the drilling orientation of a drill bit is corrected to be the preset drilling orientation from the offset orientation; and the central controller is in communication connection with the directional while drilling instrument main body and the storage module respectively, is in control connection with the dynamic direction adjusting mechanism while drilling, is configured to receive drilling direction signals transmitted by the directional while drilling instrument main body, receive preset drilling direction data stored in the storage module, compare the real-time drilling direction data with the preset drilling direction data, and control the dynamic direction adjusting mechanism while drilling to correct the drilling direction.

Preferably, the drilling tool further comprises a data transmission module, which is configured to be in communication connection with the directional drilling tool main body and the storage module respectively, receive the drilling position of the drill bit transmitted by the directional drilling tool main body, and input preset drilling position data and position dynamic adjustment data into the storage module.

Preferably, the orientation while drilling main body comprises a three-axis accelerometer, a three-axis magnetometer and a single chip microcomputer, wherein the three-axis accelerometer and the three-axis magnetometer are respectively electrically connected with the single chip microcomputer, and the single chip microcomputer is in communication connection with the central controller.

Preferably, a fixing plate is arranged in the shell; the roof subassembly is including holding pinch roller, slip post, fore-set and elastic component an, holds pinch roller, slip post and fore-set and connects gradually along keeping away from shell center pin direction, and the slip post runs through the fixed plate and with fixed plate sliding connection, and elastic component an both ends are connected with pressure-bearing wheel and fixed plate respectively.

Preferably, the top pillar has an outer end face, and the outer end face is a circular arc face and is matched with the shape of the outer end of the channel.

Preferably, actuating mechanism includes the motor, gear a, gear b, the axis of rotation, the seat rotates, the rotation post, promote the platform, elastic component b, the card frame, remove actuating mechanism, baffle a and baffle b set up side by side from top to bottom on the shell inner wall, the motor sets up on baffle a, the motor is connected with gear a drive, gear a is connected with gear b meshing, gear b sets up in the axis of rotation, the axis of rotation rotates and sets up on the shell, baffle a and baffle b, the seat that rotates sets up in the axis of rotation, the rotation post is connected with the seat that rotates, be provided with on the rotation post and supply to promote the platform to stretch into and with the slide of promoting platform sliding connection, elastic component b both ends are connected with slide inner wall and promotion platform tip respectively, it supplies the draw-in groove that the card frame card was gone into to promote bench to be provided with, remove actuating mechanism sets up on the rotation post, remove actuating mechanism and card frame drive connection.

Preferably, the elastic piece a and the elastic piece b are both compression springs, and the elastic piece a is sleeved on the outer periphery of the sliding column.

Preferably, the pushing platform is provided with a sliding chute, the rotating column is provided with a baffle, and the baffle is in sliding connection with the pushing platform through the sliding chute.

Preferably, a mounting frame for mounting the orientation while drilling main body is arranged in the shell.

Preferably, the method for dynamically correcting the orientation of the high-precision dynamic self-orientation recognition while-drilling instrument comprises the following steps:

s1, drilling direction data are stored in a storage module in advance;

s2, dynamically monitoring the real-time drilling direction of the drill bit by the main body of the directional while drilling instrument in the drilling process of the drill bit, and transmitting the data of the drilling direction to a central controller;

s3, the central controller compares the real-time drilling azimuth data with preset drilling azimuth data and outputs a control signal for correcting the drilling azimuth to the dynamic azimuth adjusting mechanism while drilling;

and S4, selecting a group of top wall assemblies to be ejected out to the inner wall of the well drilling through the channel by the dynamic orientation adjusting mechanism while drilling at each time to adjust the drilling orientation until the drilling orientation of the drill bit is corrected from the offset orientation to the preset drilling orientation.

Compared with the prior art, the invention has the following beneficial technical effects: the invention can automatically monitor and correct the drilling position of the drill bit, thereby saving time, and improving the drilling efficiency and the accuracy of the drilling position. The operator may store preset drilling orientation data in the memory module. The main body of the directional drilling tool moves along with the drill bit, monitors the drilling position of the drill bit and transmits the drilling position data to the central controller. And comparing the preset drilling position data with the real-time drilling position data through the central controller. And if the real-time drilling direction is the same as the preset drilling direction, the drill bit continues to drill, and the dynamic direction adjusting mechanism does not act while drilling. If the real-time drilling direction deviates from the preset drilling direction, the drill bit continues to drill, the central controller controls the dynamic direction adjusting mechanism to act, and the dynamic direction adjusting mechanism ejects the top wall assembly outwards through the driving mechanism, so that the group of top wall assemblies are ejected to the inner wall of the drilled well to adjust the drilling direction of the drill bit until the drilling direction is adjusted to the set direction from the deviation direction.

Drawings

FIG. 1 is a block diagram of a system architecture according to an embodiment of the present invention;

FIG. 2 is a partial structural cross-sectional view of an embodiment of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

FIG. 4 is a top view of a top post in an embodiment of the present invention;

FIG. 5 is a profile view of an embodiment of the present invention with a drill bit.

Reference numerals: 1. a housing; 101. a channel; 2. a mounting frame; 3. a directional while drilling main body; 4. a pressure bearing wheel; 5. a sliding post; 6. a top pillar; 61. an outer end face; 7. an elastic member a; 8. a motor; 9. a gear a; 10. a gear b; 11. a rotating shaft; 12. rotating the base; 13. rotating the column; 131. a slideway; 14. a pushing table; 141. a card slot; 142. a chute; 15. an elastic member b; 16. a clamping frame; 17. a movement drive mechanism; 18. a baffle plate; 19. a fixing plate; 20. a partition plate a; 21. a partition plate b; 22. a drill bit.

Detailed Description

Example one

As shown in fig. 1 and fig. 2, the high-precision dynamic self-orientation-identifying while-drilling instrument provided in this embodiment includes a data transmission module, a storage module, a while-drilling direction finder main body 3, a central controller, and a while-drilling dynamic orientation adjusting mechanism:

the storage module is used for storing drilling position data in advance. The orientation while drilling instrument main body 3 is used for monitoring the drilling direction of the drill bit 22, the orientation while drilling instrument main body 3 comprises a three-axis accelerometer, a three-axis magnetometer and a single chip microcomputer, the three-axis accelerometer and the three-axis magnetometer are electrically connected with the single chip microcomputer respectively, and the single chip microcomputer is in communication connection with a central controller, so that the drilling direction of the drill bit 22 can be monitored in real time. And the data transmission module is in communication connection with the directional drilling tool main body 3 and the storage module respectively, and can receive the drilling position of the drill bit transmitted by the directional drilling tool main body 3 and input preset drilling position data and position dynamic adjustment data into the storage module.

The dynamic orientation adjusting mechanism while drilling comprises a cylindrical shell 1, a plurality of groups of top wall assemblies and a driving mechanism, wherein the cylindrical shell 1 is internally hollow and is annularly and uniformly provided with a plurality of channels 101 on the outer circumferential surface, the top wall assemblies are uniformly distributed around the central axis of the shell 1 and correspondingly penetrate through the channels 101, the driving mechanism is used for driving the top wall assemblies to extend through the channels 101, an installation frame 2 used for installing a direction finder main body 3 while drilling is arranged in the shell 1, and a drill bit 22 is located at the bottom end of the shell 1. The dynamic while drilling orientation adjustment mechanism is capable of selecting a set of roof wall assemblies to eject through the passage 101 to the borehole inner wall at a time to adjust the drilling orientation until the drill bit drilling orientation is corrected from the offset orientation to the preset drilling orientation.

The central controller is in communication connection with the directional drilling tool main body 3 and the storage module respectively, the central controller is in control connection with the dynamic position adjusting mechanism while drilling, the central controller can receive drilling position signals transmitted by the directional drilling tool main body 3 and preset drilling position data stored in the storage module, the real-time drilling position data can be compared with the preset drilling position data, and the dynamic position adjusting mechanism while drilling is controlled to correct the drilling position.

The azimuth dynamic correction method of the high-precision dynamic self-azimuth recognition while-drilling instrument comprises the following steps:

s1, drilling direction data are stored in a storage module in advance;

s2, dynamically monitoring the real-time drilling direction of the drill bit in the drilling process of the drill bit by the directional while drilling instrument main body 3, and transmitting the drilling direction data to the central controller;

s3, the central controller compares the real-time drilling azimuth data with preset drilling azimuth data and outputs a control signal for correcting the drilling azimuth to the dynamic azimuth adjusting mechanism while drilling;

and S4, selecting a group of top wall assemblies to be ejected out to the inner wall of the drilled well through the channel 101 by the dynamic orientation adjusting mechanism while drilling each time to adjust the drilling orientation until the drilling orientation of the drill bit is corrected from the offset orientation to the preset drilling orientation.

This embodiment automatically monitors the drilling position of the drill bit 22 and corrects it to save time, improve drilling efficiency and improve drilling position accuracy. The operator may store preset drilling orientation data in the memory module. The direction finder while drilling body 3 moves with the drill bit 22, monitors the drilling position of the drill bit 22, and transmits the drilling position data to the central controller. And comparing the preset drilling position data with the real-time drilling position data through the central controller. If the real-time drilling direction is the same as the preset drilling direction, the drill bit 22 continues to drill, and the dynamic direction adjusting mechanism does not act while drilling. If the real-time drilling direction deviates from the preset drilling direction, the drill bit 22 continues to drill, the central controller controls the dynamic direction adjusting mechanism to act, and the dynamic direction adjusting mechanism ejects the top wall component outwards through the driving mechanism, so that the top wall component is ejected to the inner wall of the drilled well, and the drilling direction of the drill bit 22 is adjusted. If the offset orientation of the drill bit 22 is drilled directly opposite a set of crown assemblies, the set of crown assemblies need only be ejected and the drill bit 22 drilled during the ejection process until the drill bit 22 drilling orientation is corrected. If the drilling offset direction of the drill bit 22 is not opposite to any set of top wall components, a plurality of sets of top wall components near the direction opposite to the drilling offset direction of the drill bit 22 are selected to be sequentially ejected, and the drilling direction of the drill bit 22 can be adjusted to the set direction through multiple ejection operations.

Example two

As shown in fig. 1 to fig. 5, compared with the first embodiment, in the present embodiment, a fixing plate 19 is disposed inside a housing 1; the roof subassembly includes pressure-bearing wheel 4, slip post 5, fore-set 6 and elastic component a7, and pressure-bearing wheel 4, slip post 5 and fore-set 6 connect gradually along keeping away from 1 center pin direction of shell, and slip post 5 runs through fixed plate 19 and with fixed plate 19 sliding connection, and elastic component a7 both ends are connected with pressure-bearing wheel 4 and fixed plate 19 respectively. The pressure bearing wheel 4 can bear the push of the driving mechanism, thereby compressing the elastic piece a7 and driving the sliding column 5 and the top column 6 to move, so that the top column 6 moves out of the channel 101 and pushes against the inner wall of the well.

As shown in fig. 2 and fig. 3, the driving mechanism includes a motor 8, a gear a9, a gear b10, a rotating shaft 11, a rotating seat 12, a rotating column 13, a pushing platform 14, an elastic member b15, a clamping frame 16, a moving driving mechanism 17, a partition plate a20 and a partition plate b21, the partition plate a20 and the partition plate b21 are arranged on the inner wall of the housing 1 from top to bottom side by side, the motor 8 is arranged on the partition plate a20, the motor 8 is in driving connection with the gear a9, the gear a9 is in meshing connection with the gear b10, the gear b10 is arranged on the rotating shaft 11, the rotating shaft 11 is rotatably arranged on the housing 1, the partition plate a20 and the partition plate b21, the rotating seat 12 is arranged on the rotating shaft 11, the rotating column 13 is connected with the rotating seat 12, a slide rail 131 for the pushing platform 14 to extend into and be slidably connected with the pushing platform 14 is arranged on the rotating column 13, two ends of the elastic member b15 are respectively connected with the inner wall of the sliding rail 131 and the pushing platform 14, a clamping groove 141 for the clamping frame 16 to be clamped into the pushing platform 14, a slide rail 142 is arranged on the rotating column 13, and the pushing platform 18 is connected with the baffle plate 18 and the baffle plate 18 through a guide rail 14 and a baffle plate 14. The moving driving mechanism 17 is arranged on the rotating column 13, the moving driving mechanism 17 is in driving connection with the clamping frame 16, and the moving driving mechanism 17 can be a device which can realize linear driving, such as an air cylinder, an electric push rod and the like. The elastic piece a7 and the elastic piece b15 are both compression springs, and the elastic piece a7 is sleeved on the outer periphery side of the sliding column 5, so that the elastic piece a7 can stably stretch and retract and cannot fall off. The motor 8 can drive the gear a9 to rotate, the gear a9 drives the gear b10 to rotate, the gear b10 drives the rotating seat 12 and the rotating column 13 to rotate through the rotating shaft 11, the clamping frame 16 is clamped at the clamping groove 141, the position of the pushing table 14 extending out of the slide way 131 is determined, and the pushing table 14 can push the pressure bearing wheel 4 to move when rotating, so that the ejection column 6 is ejected out. Before the pushing table 14 is adjusted to be used for ejecting the top wall assembly in a certain direction, the clamping frame 16 is ejected out of the clamping groove 141 by the moving driving mechanism 17, the limit of the pushing table 14 is released, at the moment, when the pushing table 14 rotates to the pressure bearing wheel 4 in the top wall assembly in other directions, the elastic piece b15 is compressed, the pushing table 14 retracts, and the top column 6 in the top wall assembly cannot move outwards and interfere with the drilling direction.

As shown in fig. 4, the top pillar 6 has an outer end surface 61, the outer end surface 61 is a circular arc surface and is matched with the outer end shape of the channel 101, so that when the top pillar 6 retracts, the outer circumference profile of the cylindrical shell 1 can be corresponded, and the structural regularity can be ensured.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (10)

1. A high-precision dynamic self-orientation identification while drilling instrument is characterized by comprising: a direction-while-drilling body (3) configured to monitor a drill bit drilling orientation; a storage module configured to pre-store drilling position data; the dynamic orientation adjusting mechanism while drilling comprises a cylindrical shell (1) which is hollow inside and is provided with a plurality of channels (101) on the outer circumferential surface in an annular shape, a plurality of groups of top wall assemblies which are uniformly distributed around the central shaft of the shell (1) and correspondingly penetrate through the channels (101), and a driving mechanism for driving the top wall assemblies to extend outwards through the channels (101), wherein the driving mechanism is configured to select one top wall assembly at a time to eject the top wall assembly to the inner wall of a drilling well through the channels (101) so as to adjust the drilling orientation until the drilling orientation of a drill bit is corrected to be the preset drilling orientation from the offset orientation; and the central controller is in communication connection with the orientation while drilling main body (3) and the storage module respectively, is in control connection with the dynamic orientation while drilling adjusting mechanism, is configured to receive drilling orientation signals transmitted by the orientation while drilling main body (3), receives preset drilling orientation data stored by the storage module, compares the real-time drilling orientation data with the preset drilling orientation data, and controls the dynamic orientation while drilling adjusting mechanism to correct the drilling orientation.

2. The high-precision dynamic self-orientation recognition while drilling instrument according to claim 1, further comprising a data transmission module, configured to be in communication connection with the while-drilling direction finder body (3) and the storage module, respectively, to receive the drilling orientation of the drill bit transmitted from the while-drilling direction finder body (3), and to input preset drilling orientation data and orientation dynamic adjustment data into the storage module.

3. The high-precision dynamic self-orientation recognition while drilling instrument according to claim 1, wherein the while drilling orientation instrument body (3) comprises a three-axis accelerometer, a three-axis magnetometer and a single chip microcomputer, the three-axis accelerometer and the three-axis magnetometer are respectively electrically connected with the single chip microcomputer, and the single chip microcomputer is in communication connection with the central controller.

4. A high accuracy dynamic self-orientation recognition while drilling instrument according to claim 1, characterized in that a fixing plate (19) is arranged inside the housing (1); the roof subassembly is including bearing wheel (4), slip post (5), fore-set (6) and elastic component a (7), and bearing wheel (4), slip post (5) and fore-set (6) are connected gradually along keeping away from shell (1) center pin direction, and slip post (5) run through fixed plate (19) and with fixed plate (19) sliding connection, elastic component a (7) both ends respectively with bear pinch roller (4) and fixed plate (19) be connected.

5. The high-precision dynamic self-orientation recognition while drilling instrument according to claim 4, wherein the top pillar (6) is provided with an outer end surface (61), the outer end surface (61) is a circular arc surface, and the shape of the outer end surface is matched with that of the outer end of the channel (101).

6. The high-precision dynamic self-orientation recognition while-drilling instrument according to claim 4, wherein the driving mechanism comprises a motor (8), a gear a (9), a gear b (10), a rotating shaft (11), a rotating seat (12), a rotating column (13), a pushing table (14), an elastic piece b (15), a clamping frame (16), a moving driving mechanism (17), a partition plate a (20) and a partition plate b (21), the partition plate a (20) and the partition plate b (21) are arranged on the inner wall of the casing (1) side by side from top to bottom, the motor (8) is arranged on the partition plate a (20), the motor (8) is in driving connection with the gear a (9), the gear a (9) is in meshing connection with the gear b (10), the gear b (10) is arranged on the rotating shaft (11), the rotating shaft (11) is rotatably arranged on the casing (1), the partition plate a (20) and the partition plate b (21), the rotating seat (12) is arranged on the rotating shaft (11), the rotating column (13) is connected with the pushing table (14) and a sliding table (14) are arranged on the sliding frame (14), and a sliding table (16) respectively arranged on the sliding groove (131), and a sliding groove (14) are arranged on the sliding groove (14) and a sliding groove (14) respectively arranged on the sliding groove (21) and a sliding groove (14) for the pushing table (21) connected with the sliding table ) The moving driving mechanism (17) is arranged on the rotating column (13), and the moving driving mechanism (17) is in driving connection with the clamping frame (16).

7. The high-precision dynamic self-orientation recognition while drilling instrument according to claim 6, wherein the elastic element a (7) and the elastic element b (15) are compression springs, and the elastic element a (7) is sleeved on the outer peripheral side of the sliding column (5).

8. The high-precision dynamic self-orientation recognition while drilling instrument according to claim 6, wherein a sliding groove (142) is formed in the pushing platform (14), a baffle (18) is arranged on the rotating column (13), and the baffle (18) is in sliding connection with the pushing platform (14) through the sliding groove (142).

9. A high accuracy dynamic self-orientation recognition while drilling instrument according to claim 1, characterized in that a mounting rack (2) for mounting the orientation while drilling instrument body (3) is arranged in the housing (1).

10. The method for dynamically correcting the orientation of the high-precision dynamic self-orientation recognition while drilling instrument according to claim 1, is characterized by comprising the following steps of: s1, drilling direction data are stored in a storage module in advance; s2, dynamically monitoring the real-time drilling position of the drill bit in the drilling process of the drill bit by the orientation while drilling main body (3), and transmitting the drilling position data to the central controller; s3, the central controller compares the real-time drilling azimuth data with preset drilling azimuth data and outputs a control signal for correcting the drilling azimuth to the dynamic azimuth adjusting mechanism while drilling; and S4, selecting a group of top wall assemblies to be ejected out to the inner wall of the well drilling through the channel (101) by the dynamic orientation adjusting mechanism while drilling each time so as to adjust the drilling orientation until the drilling orientation of the drill bit is corrected from the offset orientation to the preset drilling orientation.

Images