CN210564879U - Near-bit self-powered mud turbine generator and logging-while-drilling instrument - Google Patents
Near-bit self-powered mud turbine generator and logging-while-drilling instrument Download PDFInfo
- Publication number
- CN210564879U CN210564879U CN201920958538.1U CN201920958538U CN210564879U CN 210564879 U CN210564879 U CN 210564879U CN 201920958538 U CN201920958538 U CN 201920958538U CN 210564879 U CN210564879 U CN 210564879U
- Authority
- CN
- China
- Prior art keywords
- magnetic
- mandrel
- wall
- frame
- rotor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a near-bit self-powered mud turbine generator and a logging-while-drilling instrument, wherein the generator comprises a magnetic meshing module; the turbine rotor comprises a mandrel, an inner magnetic unit sleeved on the periphery of the mandrel, an outer magnetic unit sleeved on the periphery of the inner magnetic unit and a turbine rotor sleeved on the periphery of the outer magnetic unit; the power generation coil module comprises a power generation unit connected with the mandrel and a stator fluid director sleeved on the periphery of the power generation unit, and the stator fluid director is connected with the turbine rotor. The advantages are that: the magnetic meshing module is made of a strong permanent magnet material capable of transmitting high magnetic torque, so that the inner permanent magnet strip and the outer permanent magnet strip are respectively embedded in the rotor magnetic frame and the mandrel frame, the transmission torque can be improved, and the axial size of an instrument can be shortened; the magnetic meshing structure avoids direct contact and rigid connection of parts, effectively solves the problems of sealing and abrasion, and has compact structure and reliable work; the magnetic disk and the coil in the power generation coil module are axially arranged, the magnetic blocks and the coil are distributed side by side, a certain gap is reserved, and the radial size of the instrument is effectively shortened.
Description
Technical Field
The utility model relates to a generator field especially relates to a nearly drill bit self-power mud turbine generator and along with boring logging instrument.
Background
At present, the development difficulty of oil fields at home and abroad is more and more high, especially, the main oil reservoir at home has effective exploitation, the drilling trend in future is concentrated on the effective exploitation of a thin oil reservoir and an ultrathin oil reservoir at the periphery of the main oil reservoir, and because a traditional wireless logging-while-drilling (LWD) instrument is arranged at the upper part of a screw rod, the distance between a parameter measuring point for measuring well deviation and direction and a drill bit is far, for the thin oil reservoir, the real-time position positioning precision of the drill bit cannot be met, and the oil reservoir cannot be effectively exploited; the near-bit while-drilling measuring instrument (NBM) is arranged at the lower part of the screw and is directly connected with the bit, so that the near-bit while-drilling measuring instrument has the advantage of multi-parameter close-range measurement, and in the field drilling process, a guide engineer can position the relative position of the bit and a reservoir layer in time according to the close-range measured parameters, so that the control precision of a drilling track is improved, and the target-hitting precision of a thin oil layer is effectively improved; the near-bit self-powered mud turbine generator is arranged in the near-bit short water-saving hole, the turbine rotors of different models can be replaced to adapt to the change of the power consumption of the instrument and the change of the flow rate of drilling fluid, the power supply requirement of each module of the near-bit device can be met, the instrument can continuously work underground for a long time, the drilling time is effectively shortened, and the drilling operation cost is reduced. The device is an instrument designed based on the requirements, and the drilling efficiency of the near-bit instrument can be greatly improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a nearly drill bit self-power mud turbine generator and along with boring logging instrument to solve the aforementioned problem that exists among the prior art.
In order to realize the purpose, the utility model discloses a technical scheme as follows:
a near-bit self-powered mud turbine generator, the generator comprising
A magnetic engagement module; the turbine rotor comprises a mandrel, an inner magnetic unit sleeved on the periphery of the mandrel, an outer magnetic unit sleeved on the periphery of the inner side unit and a turbine rotor sleeved on the periphery of the outer magnetic unit;
and the power generation coil module comprises a power generation unit connected with the mandrel and a stator fluid director sleeved on the periphery of the power generation unit.
Preferably, the inner magnetic unit comprises a mandrel frame sleeved on the periphery of the mandrel and a plurality of inner permanent magnetic strips clamped between the mandrel frame and the outer magnetic unit, the mandrel frame is cylindrical, a plurality of first convex columns are arranged on the outer wall of the mandrel frame along the circumferential direction of the mandrel frame, each first convex column extends along the radial direction of the mandrel frame in a protruding mode, and one inner permanent magnetic strip is arranged between every two adjacent first convex columns.
Preferably, the magnetic meshing module further comprises a middle sleeve arranged at the periphery of the mandrel frame in a sleeved mode, the middle sleeve is cylindrical, the outer magnetic unit is arranged at the periphery of the middle sleeve in a sleeved mode, the outer magnetic unit comprises a rotor magnetic frame arranged at the periphery of the middle sleeve in a sleeved mode, a rotor magnetic frame and outer permanent magnetic strips clamped between the rotor magnetic frame and the turbine rotor, the rotor magnetic frame is cylindrical, a plurality of second convex columns are arranged on the outer wall of the rotor magnetic frame along the circumferential direction of the rotor magnetic frame, each second convex column extends along the radial direction of the rotor magnetic frame in an outward protruding mode, and one outer permanent magnetic strip is arranged between every two adjacent second convex columns.
Preferably, the inner permanent magnet strip and the outer permanent magnet strip are both arc-shaped, the inner wall of the inner permanent magnet strip is correspondingly attached to the outer wall of the mandrel frame, and the outer wall of the inner permanent magnet strip is correspondingly attached to the inner wall of the middle sleeve; the inner wall of the outer permanent magnet strip is correspondingly attached to the outer wall of the rotor magnetic frame, and the outer wall of the outer permanent magnet strip is correspondingly attached to the inner wall of the turbine rotor.
Preferably, the extending end of the first convex column is correspondingly contacted with the inner wall of the middle sleeve; the extending end of the second convex column is correspondingly contacted with the inner wall of the turbine rotor; the outer wall of the turbine rotor is provided with a plurality of turbine blades along the circumferential direction of the outer wall of the turbine rotor, the turbine blades protrude outwards along the radial direction of the turbine rotor and extend, and the extending ends of the turbine blades are fixedly contacted with the inner wall of the stator flow guider.
Preferably, the power generation unit include with the dabber is coaxial, and along keeping away from collet, magnetic unit, coil, base and fixed head that the direction of dabber set gradually, the magnetic unit includes magnetic disc and magnetic path, the magnetic disc is provided with a plurality of mounting grooves along its circumference, the mounting groove is in run through on the magnetic disc axis direction the magnetic disc, the magnetic path sets up in the mounting groove.
Preferably, the bottom support is provided with only fixing holes coaxial with the bottom support, and the mandrel penetrates through the fixing holes to be fixedly connected with the bottom support; one side of the bottom support, which is far away from the mandrel, is fixedly connected with the magnetic unit; one end of the magnetic unit, which is far away from the bottom support, is away from the coil by a certain distance.
Preferably, one end of the coil, which is far away from the magnetic unit, is fixedly connected with the base, and one end of the base, which is far away from the coil, is fixedly connected with the fixing head.
Preferably, the power generation coil module further comprises a protective sleeve arranged on the periphery of the power generation unit, and the outer wall of the protective sleeve is correspondingly attached to the inner wall of the stator fluid director.
The utility model also aims to provide a near-bit logging-while-drilling instrument, which comprises a near-bit short section, a measurement electronic module and a transmitting antenna, wherein the measurement electronic module and the transmitting antenna are arranged in the near-bit short section; the near-bit self-powered slurry turbine generator is characterized in that any one of the near-bit self-powered slurry turbine generators is further arranged in the near-bit short section, a fixed head of the generator is connected with the measurement electronic module, and the measurement electronic module is connected with the transmitting antenna.
The utility model has the advantages that: 1. the magnetic meshing module is made of a strong permanent magnet material capable of transmitting high magnetic torque, the inner permanent magnet strip and the outer permanent magnet strip are formed into an inner permanent magnet strip and an outer permanent magnet strip which are respectively embedded in the rotor magnetic frame and the mandrel frame, the magnetic meshing is formed by a plurality of pairs of magnetic strips which are symmetrically distributed on the circumference, the rotor magnetic frame is arranged outside the mandrel frame, a certain radial air gap is reserved in the mandrel frame, and the magnetic strips are formed into a fan shape, so that the transmission torque can be improved, and the axial size of an instrument can be shortened. 2. The power generation coil module adopts the axial arrangement of a magnetic disk and a coil, the magnetic blocks and the coil are distributed side by side, a certain gap is reserved between the magnetic blocks and the coil, and the radial size of the instrument can be effectively shortened by the structure. 3. The collet is connected with the mandrel through the transmission nut, so that the problem of high coaxiality processing requirement caused by an integrated structure is avoided. 4. The magnetic meshing structure avoids direct contact and rigid connection of parts, effectively solves the problems of sealing and abrasion, and has compact structure and reliable work.
Drawings
Fig. 1 is a cross-sectional view of a generator magnetic meshing module in an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a generator power coil module in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an embodiment of the logging-while-drilling tool of the present invention.
In the figure, 1, a mandrel; 2. a mandrel frame; 3. a first convex column; 4. an inner permanent magnet strip; 5. a middle sleeve; 6. a rotor magnetic frame; 7. a second convex column; 8. an outer permanent magnet bar; 9. a turbine rotor; 10. a turbine blade; 11. a bottom support; 12. a magnetic disk; 13. a magnetic block; 14. a coil; 15. a base; 16. a fixed head; 17. a protective sleeve; 18. A stator flow guider; 19. a motor; 20. a proximal bit sub; 21. a measurement electronics module; 22. a transmitting antenna; 23. a drill bit; 24. a screw.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only.
As shown in fig. 1-2, the present invention provides a near-bit self-powered mud turbine generator, wherein the generator 19 comprises
A magnetic engagement module; the device comprises a mandrel 1, an inner magnetic unit sleeved on the periphery of the mandrel 1, an outer magnetic unit sleeved on the periphery of the inner side unit and a turbine rotor 9 sleeved on the periphery of the outer magnetic unit;
the power generation coil 14 module comprises a power generation unit connected with the mandrel 1 and a stator fluid director 18 sleeved on the periphery of the power generation unit.
In this embodiment, the inner magnetic unit includes a mandrel frame 2 sleeved on the periphery of the mandrel 1 and a plurality of inner permanent magnetic strips 4 clamped between the mandrel frame 2 and the outer magnetic unit, the mandrel frame 2 is cylindrical, a plurality of first protruding columns 3 are arranged on the outer wall of the mandrel frame 2 along the circumferential direction thereof, each first protruding column 3 protrudes and extends along the radial direction of the mandrel frame 2, and one inner permanent magnetic strip 4 is arranged between two adjacent first protruding columns 3.
In this embodiment, the width of the first protruding pillar 3 gradually increases along the extending direction thereof, and the inner permanent magnet strips 4 may be fixedly mounted on the periphery of the mandrel frame 2, or the inner permanent magnet strips and the outer permanent magnet strips are respectively disposed, so that the inner permanent magnet strips 4 are clamped between the mandrel frame 2 and the outer magnetic unit.
In this embodiment, the first protruding columns 3 are uniformly arranged along the periphery of the mandrel frame 2 at intervals, and the number of the first protruding columns 3 is 4. The arc length of the inner permanent magnet strip 4 is equal to the arc length between two adjacent first convex columns 3, so that the inner permanent magnet strip 4 is clamped between the two adjacent first convex columns 3.
In this embodiment, the magnetic meshing module further includes a middle sleeve 5 sleeved on the periphery of the spindle frame 2, the middle sleeve 5 is cylindrical, the outer magnetic unit is sleeved on the periphery of the middle sleeve 5, the outer magnetic unit includes a rotor magnetic frame 6 sleeved on the periphery of the middle sleeve 5, an outer permanent magnetic bar 8 clamped between the rotor magnetic frame 6 and the turbine rotor 9, the rotor magnetic frame 6 is cylindrical, a plurality of second convex columns 7 are arranged on the outer wall of the rotor magnetic frame 6 along the circumferential direction of the rotor magnetic frame, each second convex column 7 extends along the radial direction of the rotor magnetic frame 6 in a protruding manner, and an outer permanent magnetic bar 8 is arranged between two adjacent second convex columns 7.
In this embodiment, the width of the second protruding column 7 is gradually increased along the extending direction thereof, and the outer magnetic stripe may be fixedly installed on the periphery of the rotor magnetic frame 6, or the outer magnetic stripe and the outer magnetic stripe are respectively disposed, so that the outer permanent magnetic stripe 8 is clamped between the rotor magnetic frame 6 and the turbine rotor 9.
In this embodiment, the second protruding columns 7 are uniformly arranged along the periphery of the rotor magnetic frame 6 at intervals, the number of the second protruding columns 7 is 4, and the first protruding columns 3 are arranged corresponding to the second protruding columns 7. The arc length of the outer permanent magnet strip 8 is equal to the arc length between two adjacent second convex columns 7, so that the outer permanent magnet strip 8 is clamped between the two adjacent second convex columns 7.
In this embodiment, the inner permanent magnet strips 4 and the outer permanent magnet strips 8 are both arc-shaped, the inner walls of the inner permanent magnet strips 4 are correspondingly attached to the outer wall of the mandrel frame 2, and the outer walls of the inner permanent magnet strips 4 are correspondingly attached to the inner wall of the middle sleeve 5; the inner wall of the outer permanent magnet strip 8 is correspondingly attached to the outer wall of the rotor magnetic frame 6, and the outer wall of the outer permanent magnet strip 8 is correspondingly attached to the inner wall of the turbine rotor 9.
In this embodiment, the extending end of the first convex column 3 is correspondingly contacted with the inner wall of the middle sleeve 5; the extending end of the second convex column 7 is correspondingly contacted with the inner wall of the turbine rotor 9; the outer wall of the turbine rotor 9 is provided with a plurality of turbine blades 10 along the circumferential direction thereof, the turbine blades 10 are extended and projected outward along the radial direction of the turbine rotor 9, and the extended ends of the turbine blades 10 are fixed in contact with the inner wall of the stator flow guider 18.
In this embodiment, the power generation unit includes with the dabber 1 is coaxial, and along keeping away from collet 11, magnetic unit, coil 14, base 15 and fixed head 16 that dabber 1's direction set gradually, the magnetic unit includes magnetic disc 12 and magnetic path 13, magnetic disc 12 is provided with a plurality of mounting grooves along its circumference, the mounting groove is in run through in the magnetic disc 12 axis direction magnetic disc 12, magnetic path 13 sets up in the mounting groove.
In this embodiment, the mounting grooves are uniformly arranged along the circumferential direction of the magnetic disks 12, and the angles between two adjacent magnetic disks 12 are the same.
In this embodiment, the collet 11 has only fixing holes coaxial with the collet, and the mandrel 1 passes through the fixing holes to be fixedly connected with the collet 11; one side of the bottom support 11, which is far away from the mandrel 1, is fixedly connected with the magnetic unit; the end of the magnetic unit remote from the shoe 11 is at a distance from the coil 14.
In this embodiment, one end of the coil 14, which is far away from the magnetic unit, is fixedly connected to the base 15, and one end of the base 15, which is far away from the coil 14, is fixedly connected to the fixing head 16.
In this embodiment, the power generation coil 14 module further includes a protection sleeve 17 sleeved on the periphery of the power generation unit, and the outer wall of the protection sleeve 17 is correspondingly attached to the inner wall of the stator fluid director 18.
In the embodiment, the drilling fluid flows in a water hole at a certain displacement, and is guided by the stator fluid director 18 to push the turbine rotor 9 to rotate at a high speed, the turbine rotor 9 is connected with the rotor magnetic frame 6 through the pin shaft and rotates together with the turbine rotor 9, the outer permanent magnetic strips 8 are arranged on the rotor magnetic frame 6, the inner permanent magnetic strips 4 are arranged on the mandrel frame 2, and the rotor magnetic frame 6 outside the middle sleeve 5 drives the mandrel frame 2 inside to rotate under the action of magnetic field coupling.
In this embodiment, the working principle of the generator 19 is as follows: the turbine rotor 9 is installed outside the rotor magnetic frame 6, the turbine blade 10 adopts a constant-speed helicoid structure, when high-flow-rate drilling fluid flows in a water hole, the high-flow-rate drilling fluid is guided by the stator fluid director 18 to push the turbine rotor 9 to rotate at a high speed, and the spindle 1 is driven to rotate through the magnetic meshing action between the rotor magnetic frame 6 and the inner permanent magnet and the outer permanent magnet in the spindle frame 2, so that the magnetic disc 12 is driven to rotate along with the spindle, and the magnetic block 13 installed on the magnetic disc 12 cuts magnetic lines of force to generate current; the turbine rotor 9 and the stator fluid director 18 have different specifications, and the rotating speed of the turbine rotor 9 can be adjusted to adapt to the change of the mud discharge capacity.
Example two
As shown in fig. 3, the utility model also provides a near-bit logging-while-drilling instrument, which comprises a near-bit short section 20, a measurement electronic module 21 and a transmitting antenna 22, wherein the measurement electronic module 21 and the transmitting antenna are arranged in the bit short section 20; a near-bit self-powered slurry turbine generator is further arranged in the near-bit short section 20, the fixed head 16 of the generator 19 is connected with the measurement electronic module 21, and the measurement electronic module 21 is connected with the transmitting antenna 22.
In this embodiment, a water hole is arranged in the near-bit short section 20, and the generator 19 is installed in the water hole; two ends of the near-bit short section 20 are respectively connected with a bit 23 and a screw 24, one end of the near-bit short section 20, which is close to the generator 19, is connected with the bit 23, and one end of the near-bit short section 20, which is close to the transmitting antenna 22, is connected with the screw 24.
In this embodiment, the logging-while-drilling instrument operates as follows: during downhole operation, drilling fluid drives the turbine generator 19 to operate, electricity is generated to supply power to the measurement electronic module 21, the measurement electronic module 21 transmits measured data to a receiving antenna on the upper portion of the screw 24 through the transmitting antenna 22, and the measured data of the near-bit logging instrument are transmitted to the surface of the well through the mud pulse generator.
In this embodiment, the spindle 1 is connected to the spindle frame 2, and the bottom bracket 11 is connected to the spindle 1 through threads, the magnetic disk 12 fixed to the bottom bracket 11 rotates along with the spindle, the magnetic block 13 mounted on the magnetic disk 12 cuts magnetic lines formed between the coil 14 and the magnetic block 13 to generate current, and a lead welded to the coil 14 transmits electric energy to the measurement electronic module 21 through the fixing head 16 of the generator 19.
Through adopting the utility model discloses an above-mentioned technical scheme has obtained following profitable effect:
the utility model provides a nearly drill bit self-power mud turbo generator and logging while drilling instrument, magnetism meshing module adopts the strong permanent magnetic material that can transmit high magnetic torque, inlay in rotor magnetism frame and dabber frame respectively with its shaping interior permanent magnetic stripe and outer permanent magnetic stripe, magnetism meshing adopts many pairs of magnetic stripe circumference symmetric distributions, the rotor magnetism frame is outside, the dabber frame is inside, and leave certain radial air gap, the magnetic stripe shaping is fan-shaped, both can improve the transmission torque, can shorten instrument axial dimension again; the power generation coil module adopts the axial arrangement of a magnetic disk and a coil, the magnetic blocks and the coil are distributed side by side, and a certain gap is reserved between the magnetic blocks and the coil, so that the radial size of the instrument can be effectively shortened; the collet is connected with the mandrel through the transmission nut, so that the problem of high coaxiality processing requirement caused by an integrated structure is avoided. 4. The magnetic meshing structure avoids direct contact and rigid connection of parts, effectively solves the problems of sealing and abrasion, and has compact structure and reliable work.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be viewed as the protection scope of the present invention.
Claims (10)
1. The utility model provides a nearly drill bit self-power mud turbo generator which characterized in that: the generator comprises
A magnetic engagement module; the turbine rotor comprises a mandrel, an inner magnetic unit sleeved on the periphery of the mandrel, an outer magnetic unit sleeved on the periphery of the inner magnetic unit and a turbine rotor sleeved on the periphery of the outer magnetic unit;
the power generation coil module comprises a power generation unit connected with the mandrel and a stator fluid director sleeved on the periphery of the power generation unit, and the stator fluid director is connected with the turbine rotor.
2. The near-bit self-powered mud turbine generator of claim 1, wherein: the inner magnetic unit comprises a mandrel frame sleeved on the periphery of the mandrel and a plurality of inner permanent magnetic strips clamped between the mandrel frame and the outer magnetic unit, the mandrel frame is cylindrical, a plurality of first protruding columns are arranged on the outer wall of the mandrel frame along the circumferential direction of the mandrel frame, each first protruding column protrudes and extends outwards along the radial direction of the mandrel frame, and one inner permanent magnetic strip is arranged between every two adjacent first protruding columns.
3. The near-bit self-powered mud turbine generator of claim 2, wherein: the magnetic meshing module further comprises a middle sleeve sleeved on the periphery of the mandrel frame, the middle sleeve is cylindrical, the outer magnetic unit is sleeved on the periphery of the middle sleeve, the outer magnetic unit comprises a rotor magnetic frame sleeved on the periphery of the middle sleeve, a rotor magnetic frame clamped on the periphery of the middle sleeve and outer permanent magnetic strips clamped between the rotor magnetic frame and the turbine rotor, the rotor magnetic frame is cylindrical, a plurality of second convex columns are arranged on the outer wall of the rotor magnetic frame along the circumferential direction of the rotor magnetic frame, each second convex column extends along the radial outward protrusion of the rotor magnetic frame, and one outer permanent magnetic strip is arranged between every two adjacent second convex columns.
4. The near-bit self-powered mud turbine generator of claim 3, wherein: the inner permanent magnet strip and the outer permanent magnet strip are both arc-shaped, the inner wall of the inner permanent magnet strip is correspondingly attached to the outer wall of the mandrel frame, and the outer wall of the inner permanent magnet strip is correspondingly attached to the inner wall of the middle sleeve; the inner wall of the outer permanent magnet strip is correspondingly attached to the outer wall of the rotor magnetic frame, and the outer wall of the outer permanent magnet strip is correspondingly attached to the inner wall of the turbine rotor.
5. The near-bit self-powered mud turbine generator of claim 4, wherein: the extending end of the first convex column is correspondingly contacted with the inner wall of the middle sleeve; the extending end of the second convex column is correspondingly contacted with the inner wall of the turbine rotor; the outer wall of the turbine rotor is provided with a plurality of turbine blades along the circumferential direction of the outer wall of the turbine rotor, the turbine blades protrude outwards along the radial direction of the turbine rotor and extend, and the extending ends of the turbine blades are fixedly contacted with the inner wall of the stator flow guider.
6. The near-bit self-powered mud turbine generator of claim 5, wherein: the power generation unit includes with the dabber is coaxial, and along keeping away from collet, magnetic unit, coil, base and the fixed head that the direction of dabber set gradually, the magnetic unit includes magnetic disc and magnetic path, the magnetic disc is provided with a plurality of mounting grooves along its circumference, the mounting groove is in run through on the magnetic disc axis direction the magnetic disc, the magnetic path sets up in the mounting groove.
7. The near-bit self-powered mud turbine generator of claim 6, wherein: the bottom support is provided with only fixing holes coaxial with the bottom support, and the mandrel penetrates through the fixing holes to be fixedly connected with the bottom support; one side of the bottom support, which is far away from the mandrel, is fixedly connected with the magnetic unit; one end of the magnetic unit, which is far away from the bottom support, is away from the coil by a certain distance.
8. The near-bit self-powered mud turbine generator of claim 7, wherein: one end of the coil, far away from the magnetic unit, is fixedly connected with the base, and one end of the base, far away from the coil, is fixedly connected with the fixing head.
9. The near-bit self-powered mud turbine generator of claim 1, wherein: the power generation coil module further comprises a protective sleeve arranged on the periphery of the power generation unit in a sleeved mode, and the outer wall of the protective sleeve is correspondingly attached to the inner wall of the stator fluid director.
10. A near-bit logging-while-drilling instrument comprises a near-bit short section, a measurement electronic module and a transmitting antenna, wherein the measurement electronic module and the transmitting antenna are arranged in the near-bit short section; the method is characterized in that: the near-bit self-powered mud turbine generator as claimed in any one of claims 1 to 9 is further arranged in the near-bit short section, a fixed head of the generator is connected with the measurement electronic module, and the measurement electronic module is connected with the transmitting antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920958538.1U CN210564879U (en) | 2019-06-25 | 2019-06-25 | Near-bit self-powered mud turbine generator and logging-while-drilling instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920958538.1U CN210564879U (en) | 2019-06-25 | 2019-06-25 | Near-bit self-powered mud turbine generator and logging-while-drilling instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210564879U true CN210564879U (en) | 2020-05-19 |
Family
ID=70639690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920958538.1U Active CN210564879U (en) | 2019-06-25 | 2019-06-25 | Near-bit self-powered mud turbine generator and logging-while-drilling instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210564879U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242484A (en) * | 2019-06-25 | 2019-09-17 | 北京恒泰万博石油技术股份有限公司 | A kind of nearly drill bit self-powered mud turbine generator and connector for logging while drilling |
| CN113323790A (en) * | 2021-07-14 | 2021-08-31 | 沈阳新锦精密仪器仪表研究所 | Mud turbine generator for logging-while-drilling instrument |
-
2019
- 2019-06-25 CN CN201920958538.1U patent/CN210564879U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242484A (en) * | 2019-06-25 | 2019-09-17 | 北京恒泰万博石油技术股份有限公司 | A kind of nearly drill bit self-powered mud turbine generator and connector for logging while drilling |
| CN113323790A (en) * | 2021-07-14 | 2021-08-31 | 沈阳新锦精密仪器仪表研究所 | Mud turbine generator for logging-while-drilling instrument |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210564879U (en) | Near-bit self-powered mud turbine generator and logging-while-drilling instrument | |
| CN203452776U (en) | Continuous wave mud pulse generator | |
| CN103410503B (en) | A kind of continuous wave slurry pulse generator | |
| CN204436373U (en) | A kind of underground high-power is powered mud signal generator | |
| US10830037B2 (en) | Constant amplitude adjusting method and system for pressure pulse of drilling tool | |
| CN113756717A (en) | Rotary guide device | |
| US10808505B2 (en) | High signal strength mud siren for MWD telemetry | |
| CN110242484A (en) | A kind of nearly drill bit self-powered mud turbine generator and connector for logging while drilling | |
| WO2022193833A1 (en) | Rotation guide tool | |
| CN102635486B (en) | Turbine driven downhole slurry generator | |
| CN204327078U (en) | A kind of mud pulse generator brshless DC motor transmission mechanism | |
| CN110847821B (en) | High-deflecting and high-drilling-speed rotary guide system | |
| CN113482606B (en) | Underground signal receiving and transmitting device | |
| CN212837781U (en) | Drilling fluid pulse signal generator | |
| CN202991021U (en) | Underground self-powered slurry signal generator | |
| CN201650274U (en) | Single-rotor wheel mud continuous-wave generator | |
| CN203800759U (en) | Underground magnetic coupling turbine power cantilever type AC generator | |
| CN202545099U (en) | Turbine driving type downhole mud generator | |
| CN203239317U (en) | Working parameter measuring device of screw drill tool for petroleum drilling | |
| CN103701259B (en) | A kind of down-hole magnetic coupling turbine power cantilever type alternating current generator | |
| CN113775335A (en) | Drilling fluid pulse signal generator | |
| CN212837586U (en) | Rotary guide device | |
| CN214403562U (en) | High-speed continuous rotary valve pulser | |
| CN118128513A (en) | Logging system for while-drilling vertical well | |
| CN103256037A (en) | Working parameter measurement device for oil drilling positive displacement motors |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |