CN117588202A - High-service-life rotary guiding tool for high-temperature well - Google Patents

Abstract

The invention relates to the technical field of drilling and surveying, and discloses a high-service-life rotary guiding tool for a high-temperature well.

Description

A high-life rotary steering tool for high-temperature wells

Technical field

The invention relates to the technical field of drilling survey, and in particular to a high-life rotary steering tool used in high-temperature wells.

Background technique

With the continuous exploration and development of oil and gas resources, conventional oil and gas resources are gradually decreasing, and oil and gas resource exploitation is gradually developing from conventional resources to unconventional resources, from land drilling to ocean drilling, making directional well and branch well technology increasingly mature. By adopting directional well and branch well technology, modern oil and gas resources can be exploited economically and efficiently. Rotary steerable drilling technology is to monitor downhole drilling parameters in real time through monitoring instruments, and adjust feedback to control the work of the steering system through the control system, including real-time monitoring of the inclination angle of the rotary steerable tool. The inclination angle of the rotary steerable tool is usually measured in real time by an inclination measuring instrument. However, when the inclination measuring instrument is directly installed inside the drill pipe, the inclination measuring instrument will also deflect during the advancement of the drill pipe, thus affecting the inclination angle measurement of the rotating guide tool. Moreover, when the rotating steering tool is working, the rotating guide will The tool will also vibrate, causing the inclinometer to vibrate, which will also interfere with the measurement results of the inclinometer. Since most of the working environments of rotary steering tools are high-temperature environments, for this reason, a high-life rotary tool for high-temperature wells is needed. Guidance tools.

Contents of the invention

In order to solve the deficiencies of the prior art, the object of the present invention is to provide a long-life rotary steering tool for use in high-temperature wells.

In order to achieve the above technical objectives, the technical solutions adopted by the present invention are as follows.

A high-life rotary steering tool used in high-temperature wells, which includes:

Drill pipe, drill bit, inclination measuring instrument, stabilizing mechanism one, stabilizing mechanism two. The inclination measuring instrument is installed inside the drill pipe through stabilizing mechanism one and stabilizing mechanism two. The inner wall of the drill pipe is fixedly provided with a supporting plate one and a supporting plate. Board two, support plate one and two are arranged symmetrically up and down. Stabilizing mechanism one and two are respectively arranged on support plate one and two. Stabilizing mechanism one and two have the same structure and are arranged symmetrically, tilted The upper cover of the measuring instrument is equipped with a connecting sleeve, which is connected to the first and second stabilizing mechanisms;

The first stabilizing mechanism includes a connecting component, a triggering component, and a stabilizing component. The connecting component includes a guide post, a guide sleeve, a sphere one, and a sphere two. The sphere one is rotatably connected to the bottom of the support plate one, and the sphere two is connected to the wall of the connecting sleeve. Rotation connection, the top of the guide post is fixedly connected to the first ball, the bottom of the guide post extends vertically downward, the bottom of the guide sleeve is fixedly connected to the second ball, the top of the guide bush extends vertically upward and is set on the guide post, the guide A spring is set on the column and the guide sleeve. The trigger component and the stabilizing component are arranged at the bottom of the supporting plate one. The trigger component and the stabilizing component are driven and matched with the connecting sleeve.

As a further improvement of this technical solution, the trigger assembly includes support plate one, support plate two, guide rod one, rack, mounting plate, rotating shaft, and gear. Support plate one and support plate two are fixed on the bottom of support plate one. , the guide rod one is fixed horizontally between the support plate one and the support plate two. The guide rod one is provided with two and are arranged in parallel. The rack is set on the guide rod one through the sliding sleeve, and the guide rod one is equipped with two springs. , one end of spring two is in contact with the sliding sleeve, and the other end is in contact with support plate two, the installation plate is fixed on the bottom of support plate one, the rotating shaft is rotated and set on the surface of the installation plate, the gear is coaxially fixed on the rotating shaft, and the gear It meshes with the rack, and the end of the rack is connected to the wall of the connecting sleeve through the pull cord one. The bottom of the support plate one is provided with a guide wheel for guiding the pull cord one. In the initial state, the spring two is in a compressed state.

As a further improvement of this technical solution, the stable component includes a support plate three, a friction plate, a guide rod two, and a turntable. The turntable is coaxially fixedly connected to the end of the rotating shaft, and the support plate three is vertically arranged at the bottom of the support plate one. , the support plate three is on one side of the turntable, the friction plate is between the support plate three and the turntable, one end of the guide rod two is fixedly connected to the side wall of the friction plate, and the other end of the guide rod two passes through the surface of the support plate three And there are external steps, two guide rods two are arranged in parallel, a spring three is set on the guide rod two, one end of the spring three is in contact with the surface of the support plate three, and the other end of the spring three is in contact with the friction plate The end surface of the friction plate is an arc surface that matches the circumference of the turntable, and the arc surface of the friction plate is in contact with the circumferential surface of the turntable.

As a further improvement of this technical solution, the rotating sleeve in the connecting sleeve is provided with a collar, the inclination measuring instrument is set in the collar, and a protective mechanism is connected to the collar. The protective mechanism includes two pull ropes, a connecting column, a counterweight, Resistance component one and conflict component two, one end of the pull rope two is fixedly connected to the collar, the other end of the pull rope two extends vertically downward and is fixedly connected with the counterweight block, the pull rope two is a rigid rope, and the connecting column is fixed on the pulley. On the rope two, the first and second conflict components are respectively arranged at both ends of the connecting column, and the ends of the first and second conflict components are in contact with the inner wall of the drill pipe.

As a further improvement of this technical solution, the first and second conflict components have the same structure and are arranged symmetrically. The first conflict component includes a conflict sleeve, a push plate, and a push rod. The conflict sleeve is arranged horizontally. One end of the conflict sleeve is connected to the connecting column. The end is in contact, the other end of the collision sleeve extends horizontally, the push plate matching sleeve is set in the collision sleeve, one end of the push rod is fixedly connected to the push plate, and the other end of the push rod passes through the end of the collision sleeve and contacts the inner wall of the drill pipe , there is a spring 4 set in the conflict sleeve, one end of the spring 4 is in contact with the push plate, and the other end of the spring 4 is in contact with the end of the conflict sleeve close to the connecting column.

As a further improvement of this technical solution, the side wall of the guide sleeve is connected with an air inlet pipe and an exhaust pipe. The air inlet port of the air inlet pipe is located in the drill pipe, and the exhaust port of the exhaust pipe passes through the wall of the drill pipe. One-way valves are installed in the trachea and exhaust pipes.

As a further improvement of this technical solution, the end of the push rod is provided with rolling balls, and the push rod contacts the inner wall of the drill pipe through the balls.

As a further improvement of this technical solution, the circumferential surface of the turntable is provided with friction patterns.

Compared with the prior art, the progress and advantage of the present invention is that during the use of the present invention, when the drill pipe is rotated and guided for drilling, the inclination measuring instrument can detect the gravity change of the equipment and calculate the corresponding value based on the voltage signal output by it. The inclination angle is displayed on the digital display, so that the inclination angle during the rotation and guidance of the drill pipe can be measured in real time to facilitate stable tracking of the drill pipe's progress;

When the drill pipe travels, the drill pipe vibrates, which drives the connecting sleeve to vibrate. During the vibration of the connecting sleeve, it drives the pull rope to move, thereby driving the rack to move along the guide rod, thereby driving the gear and the turntable to rotate, and the elastic force of the spring 3 drives it. The arc surface of the friction plate conflicts with the circumferential surface of the turntable, thereby blocking the rotation of the turntable, driving the turntable and gears to stop rotating, thereby slowing down the vibration of the connecting sleeve, thereby slowing down the vibration of the inclinometer, thus improving the stability of the inclinometer. , to prevent the vibration of the inclination measuring instrument from interfering with the inclination angle measurement, and to improve the accuracy of the drill pipe inclination angle measurement;

When the collar rotates, it can suppress the counterclockwise rotation trend of the collar, ensuring the stability of the inclinometer;

When the drill pipe vibrates, the connecting sleeve vibrates, which drives the guide post to move back and forth in the guide sleeve, thereby discharging the gas in the drill pipe to the outside of the drill pipe through the air inlet pipe and exhaust pipe, thereby discharging the heat generated inside the drill pipe. , extending the service life of the internal parts of the drill pipe.

Description of drawings

In order to explain the technical solutions of the embodiments of the present invention more clearly, the drawings required to be used in the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic diagram of the overall structure of the present invention.

Figure 2 is an internal schematic diagram of the drill pipe of the present invention.

Figure 3 is a schematic diagram of the installation of the inclinometer of the present invention.

Figure 4 is a schematic diagram of the stabilizing mechanism of the present invention.

Figure 5 is a schematic diagram of the connection assembly of the present invention.

Figure 6 is a schematic diagram of the trigger component of the present invention.

Figure 7 is a schematic diagram of the cooperation between the gear and the rack according to the present invention.

Figure 8 is a schematic diagram of the stabilizing component of the present invention.

Figure 9 is a schematic diagram of the connection between the air intake pipe and the exhaust pipe of the present invention.

Figure 10 is a schematic diagram of the protection mechanism of the present invention.

Figure 11 is a schematic diagram of the cooperation between the first and second conflict components of the present invention.

Marked in the figure.

10. Drill pipe; 110. Drill bit; 120. Support plate one; 130. Support plate two.

20. Stabilizing mechanism one; 210. Connection component; 211. Guide pillar; 212. Guide sleeve; 213. Sphere one; 214. Sphere two; 215. Intake pipe; 216. Exhaust pipe; 220. Trigger component; 221. Support Plate one; 222, support plate two; 223, guide rod one; 224, rack; 225, mounting plate; 226, rotating shaft; 227, gear; 228, guide wheel; 230, stable component; 231, support plate three; 232 , Friction plate; 233. Guide rod two; 234. Turntable; 240. Pull rope one.

30. Stabilization mechanism 2.

40. Inclination measuring instrument; 410. Connecting sleeve; 420. Collar.

50. Protection mechanism; 510. Pull rope two; 520. Connecting column; 530. Counterweight block; 540. Conflict component one; 541. Conflict sleeve; 542. Push plate; 543. Push rod; 544. Ball; 550. Conflict Component two.

Implementation

The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation modes.

The drawings are only for illustrative purposes, and represent only schematic diagrams rather than actual drawings, which cannot be understood as limitations of the present invention. In order to better illustrate the embodiments of the present invention, some components of the drawings will be omitted. The enlargement or reduction does not represent the size of the actual product; it is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left" and "right" appear The orientation or positional relationship indicated by "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must be It has a specific orientation and is constructed and operated in a specific orientation. Therefore, the terms describing the positional relationships in the drawings are only for illustrative purposes and cannot be understood as limitations of the present invention. For those of ordinary skill in the art, they can determine the specific position according to the specific orientation. Understand the specific meaning of the above terms.

In the description of the present invention, unless otherwise explicitly stipulated and limited, if the term "connection" appears to indicate the connection relationship between components, the term should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. Connection, or integration; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components or an interaction between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

As shown in Figures 1 to 11, a high-life rotary steering tool used in high-temperature wells includes:

Drill pipe 10, drill bit 110, inclination measuring instrument 40, stabilizing mechanism one 20, stabilizing mechanism two 30. The inclination measuring instrument 40 is installed inside the drill pipe 10 through stabilizing mechanism one 20 and stabilizing mechanism two 30. The first support plate 120 and the second support plate 130 are fixedly provided on the inner wall. The first support plate 120 and the second support plate 130 are arranged symmetrically up and down. The first stabilization mechanism 20 and the second stabilization mechanism 30 are respectively arranged on the first support plate 120 and the second support plate 130 On the top, the stabilizing mechanism one 20 and the stabilizing mechanism two 30 have the same structure and are arranged symmetrically. The inclination measuring instrument 40 is provided with a connecting sleeve 410, and the connecting sleeve 410 is connected to the stabilizing mechanism one 20 and the stabilizing mechanism two 30;

The stabilizing mechanism 20 includes a connecting component 210, a triggering component 220, and a stabilizing component 230. The connecting component 210 includes a guide post 211, a guide sleeve 212, a first sphere 213, a second sphere 214, the first sphere 213 and the bottom of the support plate 120 Rotation connection, the second ball 214 is rotationally connected to the wall of the connecting sleeve 410, the top of the guide post 211 is fixedly connected to the first ball 213, the bottom of the guide post 211 extends vertically downward, and the bottom of the guide sleeve 212 is fixedly connected to the second ball 214 , the top of the guide bush 212 extends vertically upward and is set on the guide post 211. The guide post 211 and the guide bush 212 are set with a spring. The trigger component 220 and the smooth component 230 are provided on the support plate 120. At the bottom, the trigger component 220, the smooth component 230 and the connecting sleeve 410 are driven and matched.

More specifically, the trigger assembly 220 includes a support plate 221, a support plate 222, a guide rod 223, a rack 224, a mounting plate 225, a rotating shaft 226, a gear 227, a support plate 221, a support plate 222 Fixed at the bottom of the support plate 120, the guide rod 223 is horizontally fixed between the support plate 221 and the support plate 222. There are two guide rods 223 arranged in parallel. The rack 224 is sleeved on the guide through a sliding sleeve. On the rod one 223, a spring two is set on the guide rod one 223. One end of the spring two is in contact with the sliding sleeve and the other end is in contact with the support plate 222. The mounting plate 225 is fixed on the bottom of the support plate 120, and the rotating shaft 226 is rotated. On the surface of the mounting plate 225, the gear 227 is coaxially fixed and sleeved on the rotating shaft 226. The gear 227 meshes with the rack 224. The end of the rack 224 is connected to the wall of the connecting sleeve 410 through a pull cord 240 for support. The bottom of plate one 120 is provided with a guide wheel 228 for guiding the pull cord one 240. In the initial state, the spring two is in a compressed state.

More specifically, the stable component 230 includes a third support plate 231, a friction plate 232, a guide rod 233, and a turntable 234. The turntable 234 is coaxially fixedly connected to the end of the rotating shaft 226, and the third support plate 231 is arranged vertically on At the bottom of the support plate 120, the support plate 231 is on one side of the turntable 234, the friction plate 232 is between the support plate 231 and the turntable 234, and one end of the guide rod 233 is fixedly connected to the side wall of the friction plate 232. The other end of rod two 233 passes through the surface of support plate three 231 and is provided with an external step. Two guide rods 233 are provided and arranged in parallel. A spring three is set on the guide rod two 233. One end of spring three It is in contact with the plate surface of support plate three 231, and the other end of spring three is in contact with the wall of friction plate 232. The end surface of friction plate 232 is an arc surface that matches the circumference of turntable 234. The arc surface of friction plate 232 is in contact with the turntable 234. The circumferential surfaces are in contact and when the drill pipe 10 performs rotational guidance drilling, the inclination measuring instrument 40 can detect the gravity change of the equipment, calculate the corresponding inclination angle according to the voltage signal output by it, and display the angle and inclination data through the digital display, thereby measuring the angle and inclination data. The inclination angle of the drill pipe 10 during the rotation and guidance process is measured in real time to facilitate stable tracking of the movement of the drill pipe 10. When the drill pipe 10 travels, the drill pipe 10 vibrates, thereby driving the connecting sleeve 410 to vibrate. During the vibration of the connecting sleeve 410 The pull rope 240 is driven to move, thereby driving the rack 224 to move along the guide rod 223, thereby driving the gear 227 and the turntable 234 to rotate. The elastic force of the spring three pushes the arc surface of the friction plate 232 to conflict with the circumferential surface of the turntable 234, thereby causing The rotation of the turntable 234 is blocked, driving the turntable 234 and the gear 227 to stop rotating, thereby slowing down the vibration of the connecting sleeve 410 and thereby slowing down the vibration of the inclinometer 40. Therefore, the stability of the inclinometer 40 can be improved and the vibration of the inclinometer 40 can be avoided. The inclination angle measurement causes interference and improves the accuracy of the inclination angle measurement of the drill pipe 10 .

As shown in Figures 2 and 9-11, a collar 420 is provided in the rotating sleeve of the connecting sleeve 410. The inclination measuring instrument 40 is set in the collar 420. The collar 420 is connected with a protective mechanism 50. The protective mechanism 50 includes The second pull rope 510, the connecting column 520, the counterweight 530, the first friction component 540, the second friction component 550, one end of the second pull rope 510 is fixedly connected to the collar 420, and the other end of the second pull rope 510 extends vertically downward and Fixedly connected to the counterweight block 530, the second pull rope 510 is a rigid rope, the connecting post 520 is fixed on the second pull rope 510, the first friction component 540 and the second friction component 550 are respectively provided at both ends of the connection post 520, and the first friction component 540. The end of the second collision component 550 is in contact with the inner wall of the drill pipe 10 .

More specifically, the conflict component one 540 and the conflict component two 550 have the same structure and are arranged symmetrically. The conflict component 540 includes a conflict sleeve 541, a push plate 542, and a push rod 543. The conflict sleeve 541 is arranged horizontally. One end is in contact with the end of the connecting column 520, the other end of the resistance sleeve 541 extends horizontally, the push plate 542 is matched and set in the resistance sleeve 541, one end of the push rod 543 is fixedly connected to the push plate 542, and the other end of the push rod 543 passes through The end of the collision sleeve 541 is in contact with the inner wall of the drill pipe 10. The collision sleeve 541 is provided with a spring 4. One end of the spring 4 is in contact with the push plate 542, and the other end of the spring 4 is with the end of the collision sleeve 541 close to the connecting column 520. The gravity of the counterweight block 530 can prevent the collar 420 from rotating. When the collar 420 tends to rotate, the collar 420 drives the second pull rope 510 and the connecting column 520 to deflect, thereby driving the first and second conflict components 540 and 540 to deflect. 550 deflects, when the collar 420 rotates counterclockwise, the push rod 543 collides with the inner wall of the drill pipe 10, thereby driving the push plate 542 to push the spring 4 to compress, and then the elastic force of the spring 4 pushes the collision sleeve 541 to collide with the connecting column 520. end, thereby inhibiting the deflection of the connecting column 520, thereby inhibiting the counterclockwise rotation tendency of the collar 420, and ensuring the stability of the inclinometer 40.

More specifically, the side wall of the guide sleeve 212 is connected with an air inlet pipe 215 and an exhaust pipe 216. The air inlet port of the air inlet pipe 215 is located in the drill pipe 10, and the exhaust port of the exhaust pipe 216 passes through the drill pipe 10. The wall, the air inlet pipe 215, and the exhaust pipe 216 are all provided with one-way valves. When the drill pipe 10 vibrates, the connecting sleeve 410 vibrates, thereby driving the guide post 211 to reciprocate in the guide sleeve 212, thereby moving the drill pipe 10 inside. The gas is discharged to the outside of the drill pipe 10 through the air inlet pipe 215 and the exhaust pipe 216, thereby discharging the heat generated inside the drill pipe 10 and extending the service life of the internal parts of the drill pipe 10.

More specifically, the end of the push rod 543 is provided with a ball 544 for rotation. The push rod 543 contacts the inner wall of the drill rod 10 through the ball 544, thereby reducing the friction between the push rod 543 and the inner wall of the drill rod 10 and improving the friction of the push rod 543. Deflection stability.

More specifically, the circumferential surface of the turntable 234 is provided with friction patterns, thereby increasing the friction between the friction plate 232 and the circumferential surface of the turntable 234 .

working principle:

During the use of the present invention, when the drill pipe 10 performs rotational guidance drilling, the inclination measuring instrument 40 can detect the gravity change of the equipment, calculate the corresponding inclination angle according to the voltage signal output by it, and display the angle inclination data through the digital display. , thereby measuring the inclination angle of the drill pipe 10 in the process of rotating and guiding in real time, so as to facilitate stable tracking of the movement of the drill pipe 10. When the drill pipe 10 travels, the drill pipe 10 vibrates, thereby driving the connecting sleeve 410 to vibrate, and the connecting sleeve 410 During the vibration process, the pull rope 240 is driven to move, thereby driving the rack 224 to move along the guide rod 223, thereby driving the gear 227 and the turntable 234 to rotate. The elastic force of the spring three pushes the arc surface of the friction plate 232 to conflict with the circumferential surface of the turntable 234. , thereby blocking the rotation of the turntable 234, driving the turntable 234 and the gear 227 to stop rotating, thereby slowing down the vibration of the connecting sleeve 410, thereby slowing down the vibration of the inclinometer 40, thus improving the stability of the inclinometer 40 and preventing the inclinometer from rotating. 40 Vibration interferes with the inclination angle measurement and improves the accuracy of the inclination angle measurement of the drill pipe 10. When the collar 420 has a tendency to rotate, the collar 420 drives the pull rope two 510 and the connecting column 520 to deflect, thereby driving the conflict components one 540 and The friction component 550 deflects, and when the collar 420 rotates counterclockwise, the push rod 543 collides with the inner wall of the drill pipe 10, thereby driving the push plate 542 to push the spring four to compress, and then the elastic force of the spring four pushes the friction sleeve 541 to contact the connection. The end of the column 520, thereby inhibiting the deflection of the connecting column 520, thereby inhibiting the counterclockwise rotation tendency of the collar 420, ensuring the stability of the inclination measuring instrument 40. When the drill pipe 10 vibrates, the connecting sleeve 410 vibrates, thereby driving the guide The column 211 moves back and forth in the guide sleeve 212, thereby discharging the gas in the drill pipe 10 to the outside of the drill pipe 10 through the air inlet pipe 215 and the exhaust pipe 216, thereby discharging the heat generated inside the drill pipe 10, and extending the length of the drill pipe 10. Service life of internal parts.

It should be noted that the above-mentioned specific implementation modes are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art should understand that various modifications, equivalent substitutions, changes, etc. can also be made to the present invention. However, as long as these transformations do not deviate from the spirit of the present invention, they should be within the protection scope of the present invention. In addition, some terms used in the description and claims of this application are not limiting, but are merely used to facilitate description.

Claims (8)

1. A high-life rotary steering tool used in high-temperature wells, characterized in that it includes: Drill pipe, drill bit, inclination measuring instrument, stabilizing mechanism one, stabilizing mechanism two. The inclination measuring instrument is installed inside the drill pipe through stabilizing mechanism one and stabilizing mechanism two. The inner wall of the drill pipe is fixedly provided with a supporting plate one and a supporting plate. Board two, support plate one and two are arranged symmetrically up and down. Stabilizing mechanism one and two are respectively arranged on support plate one and two. Stabilizing mechanism one and two have the same structure and are arranged symmetrically, tilted The upper cover of the measuring instrument is equipped with a connecting sleeve, which is connected to the first and second stabilizing mechanisms; The first stabilizing mechanism includes a connecting component, a triggering component, and a stabilizing component. The connecting component includes a guide post, a guide sleeve, a sphere one, and a sphere two. The sphere one is rotatably connected to the bottom of the support plate one, and the sphere two is connected to the wall of the connecting sleeve. Rotation connection, the top of the guide post is fixedly connected to the first ball, the bottom of the guide post extends vertically downward, the bottom of the guide sleeve is fixedly connected to the second ball, the top of the guide bush extends vertically upward and is set on the guide post, the guide A spring is set on the column and the guide sleeve. The trigger component and the stabilizing component are arranged at the bottom of the supporting plate one. The trigger component and the stabilizing component are driven and matched with the connecting sleeve. 2. A long-life rotary guide tool for use in high-temperature wells according to claim 1, characterized in that the trigger assembly includes a support plate one, a support plate two, a guide rod one, a rack, a mounting plate, and a rotating shaft. , gear, support plate one and support plate two are fixed on the bottom of support plate one, guide rod one is fixed horizontally between support plate one and support plate two, guide rod one is provided with two and are arranged in parallel, the rack passes through the slide The sleeve is set on the guide rod one, and the guide rod one is equipped with a spring two. One end of the spring two is in contact with the sliding sleeve, and the other end is in contact with the support plate two. The mounting plate is fixed on the bottom of the support plate one, and the rotating shaft is rotated and set on the installation On the surface of the board, the gear is coaxially fixed on the rotating shaft, and the gear meshes with the rack. The end of the rack is connected to the wall of the connecting sleeve through a pull cord. The bottom of the support plate is provided with a pull cord for holding the pull cord. In the initial state of the guide wheel for guidance, spring two is in a compressed state. 3. A long-life rotary steering tool for use in high-temperature wells according to claim 2, characterized in that the stable component includes a support plate three, a friction plate, a guide rod two, and a turntable, and the turntable is coaxially fixedly connected to the At the end of the rotating shaft, support plate three is vertically arranged at the bottom of support plate one. Support plate three is on one side of the turntable. The friction plate is between support plate three and the turntable. One end of guide rod two is at the side wall of the friction plate. Fixed connection, the other end of the guide rod two passes through the surface of the support plate three and is provided with an external step. There are two guide rods two and are arranged in parallel. A spring three is set on the guide rod two, and one end of the spring three It is in contact with the plate surface of support plate three, and the other end of spring three is in contact with the wall of the friction plate. The end surface of the friction plate is an arc surface that matches the circumference of the turntable, and the arc surface of the friction plate is in contact with the circumferential surface of the turntable. 4. A high-life rotary steering tool for use in high-temperature wells according to claim 3, characterized in that the rotating sleeve is provided with a collar in the connecting sleeve, the inclination measuring instrument is sleeved in the collar, and the collar is connected with The protection mechanism includes a pull rope two, a connecting column, a counterweight, an interference component one and a collision component two. One end of the pull rope two is fixedly connected to the collar, and the other end of the pull rope two extends vertically downward and is connected with the fitting. The weights are fixedly connected, the second pull rope is a rigid rope, the connecting post is fixed on the second pull rope, the first and second conflict components are respectively arranged at both ends of the connection post, and the ends of the first and second conflict components are connected with the drill. The inner wall of the rod is in contact. 5. A long-life rotary steering tool used in high-temperature wells according to claim 4, characterized in that the first and second conflict components have the same structure and are arranged symmetrically. The first conflict component includes a conflict sleeve, a push plate, The push rod and the collision sleeve are arranged horizontally. One end of the collision sleeve is in contact with the end of the connecting column. The other end of the collision sleeve extends horizontally. The push plate matching sleeve is set in the collision sleeve. One end of the push rod is fixedly connected to the push plate. The other end of the rod passes through the end of the collision sleeve and contacts the inner wall of the drill pipe. There is a spring 4 inside the collision sleeve. One end of the spring 4 is in contact with the push plate. The other end of the spring 4 is with the end of the collision sleeve close to the connecting column. touch. 6. A high-life rotary steering tool for use in high-temperature wells according to claim 1, characterized in that the side wall of the guide sleeve is connected with an air inlet pipe and an exhaust pipe, and the air inlet port of the air inlet pipe is located in the drill pipe. , the exhaust port of the exhaust pipe passes through the wall of the drill pipe, and one-way valves are provided in both the intake pipe and the exhaust pipe. 7. A long-life rotary steering tool for use in high-temperature wells according to claim 5, characterized in that the end of the push rod is rotated with balls, and the push rod contacts the inner wall of the drill pipe through the balls. 8. A long-life rotary steering tool for use in high-temperature wells according to claim 3, characterized in that the circumferential surface of the turntable is provided with friction patterns.