CN214366520U - Underground high-power generator structure - Google Patents
Underground high-power generator structure Download PDFInfo
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- CN214366520U CN214366520U CN202023031732.7U CN202023031732U CN214366520U CN 214366520 U CN214366520 U CN 214366520U CN 202023031732 U CN202023031732 U CN 202023031732U CN 214366520 U CN214366520 U CN 214366520U
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Abstract
The application discloses a downhole high-power generator structure, which comprises a drill collar shell, and a box end connector, a turbine guide wheel device, a generator body and a circuit framework which are arranged in the drill collar shell, wherein a channel for slurry to pass through is arranged between the box end connector, the turbine guide wheel device, the generator body and the circuit framework and the inner wall of the drill collar shell, and the box end connector is arranged to be connected with a previous instrument nipple; slurry flows through the turbine guide wheel device and drives the turbine guide wheel device to rotate, and the turbine guide wheel device is connected with the generator body; the generator body is connected with the circuit framework.
Description
Technical Field
The application relates to but is not limited to the field of downhole instruments, in particular to a downhole high-power generator structure.
Background
In the fields of petroleum, mines, geological exploration and the like, measurement-while-drilling or non-measurement-while-drilling instruments are required to be used, the instruments need stable, long-lasting and high-power sources in use, and the power source equipment needs environments resistant to high temperature, high pressure and high vibration in the drilling instruments. At present, a power supply mode of a drilling instrument for measurement while drilling or non-measurement while drilling in the fields of petroleum, mines, geological exploration and the like generally adopts a high-performance lithium battery for power supply or wired transmission for power supply.
The lithium battery power supply is characterized in that a plurality of lithium batteries are connected in series and then are arranged in a titanium alloy shell, and the lithium batteries are connected with a circuit through an electric plug to supply power to a drilling instrument and the circuit; on one hand, however, the lithium battery can provide limited electric quantity and low voltage, which cannot meet the power consumption requirement of a high-power transmitting circuit, and the battery pack needs to be replaced frequently, so that the function of the instrument is greatly limited; on the other hand, the lithium battery has higher manufacturing cost, and the cost of the instrument is greatly improved. The wired transmission power supply is to connect ground power supply equipment to a measuring instrument through a cable to meet the power consumption requirement of the measuring instrument, and the data obtained by the measuring instrument is transmitted to the ground through the cable; however, the wired transmission power supply method is difficult to use in rotary drilling wells and wells with a skew angle greater than 45 degrees, because the cable is in the channel of the drill string, and when the drill string rotates, the cable is easily broken, and when the skew angle is greater than 45 degrees, the instrument is difficult to drop to the bottom of the well by the weight of the instrument.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a high-power generator structure in pit, and usable underground environment self-generation supplies instrument in the pit to use, reliable operation.
The embodiment of the application provides a downhole high-power generator structure, which comprises a drill collar shell, and a female buckle end connector, a turbine guide wheel device, a generator body and a circuit framework which are arranged in the drill collar shell, wherein a channel for slurry to pass through is arranged between the female buckle end connector, the turbine guide wheel device, the generator body and the circuit framework and the inner wall of the drill collar shell,
the female buckle end connector is connected with the upper instrument short section; slurry flows through the turbine guide wheel device and drives the turbine guide wheel device to rotate, and the turbine guide wheel device is connected with the generator body; the generator body is connected with the circuit framework.
Compared with some technologies, the method has the following beneficial effects:
the high-power generator structure in pit that this application embodiment provided utilizes mud drive turbine guide device to rotate, and then the electricity generation of drive generator body, for the well drilling instrument provides electric power, make full use of the swirling power of the mud that produces among the well drilling process, reduced the cost for well drilling instrument power supply, simplified the structural complexity of the power module of well drilling instrument. The underground high-power generator is simple in structure, safe and reliable, the power supply can completely meet the power utilization requirements of common instruments, and the power supply stability of drilling instruments is improved.
Other features and advantages of the present application will be set forth in the description that follows.
Drawings
The accompanying drawings are included to provide a further understanding of the claimed subject matter and are incorporated in and constitute a part of this specification, illustrate embodiments of the subject matter and together with the description serve to explain the principles of the subject matter and not to limit the subject matter.
FIG. 1 is a schematic diagram of a downhole high power generator configuration according to an embodiment of the present application;
FIG. 2 is an enlarged view of the structure of portion C of FIG. 1;
FIG. 3 is an enlarged view of the structure of portion D of FIG. 1;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 1;
fig. 6 is a schematic structural diagram of a generator body according to an embodiment of the present application.
Illustration of the drawings:
1-female buckle end connector, 2-turbine guide wheel device, 3-generator body, 31-generator female head, 32-end surface long plug, 33-rotor, 34-stator, 35-generator shell, 36-end surface short plug, 37-inclined hole wire passing top cover, 371-wire passing hole, 38-wire passing rod, 381-first end, 382-second end, 39-coupler assembly body, 4-circuit framework, 5-drill collar shell, 51-channel, 6-flow guiding locking ring and 7-positioning piece.
Detailed Description
To make the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The embodiment of the application provides a downhole high-power generator structure, as shown in fig. 1 to 6, the downhole high-power generator structure comprises a drill collar shell 5, a female buckle end connector 1, a turbine guide wheel device 2, a generator body 3 and a circuit framework 4, wherein the female buckle end connector 1, the turbine guide wheel device 2, the generator body 3 and the circuit framework 4 are arranged in the drill collar shell 5, a channel 51 for slurry to pass through is arranged between the female buckle end connector 1, the turbine guide wheel device 2, the generator body 3 and the circuit framework 4 and the inner wall of the drill collar shell 5, and the female buckle end connector 1 is arranged to be connected with a short section of a previous instrument; the slurry flows through the turbine guide wheel device 2 and drives the turbine guide wheel device 2 to rotate, and the turbine guide wheel device 2 is connected with the generator body 3; the generator body 3 is connected with the circuit framework 4.
The underground high-power generator structure is serially arranged in an underground instrument string and is arranged in a well along with other drilling instruments. Circulating slurry flows through the generator structure, the turbine guide wheel device 2 rotates under the scouring of the slurry, the turbine guide wheel device 2 drives the generator body 3 to generate electricity, and the circuit framework 4 converts alternating current generated by the generator body 3 into direct current.
Two ends (provided with threads) of the drill collar shell 5 are respectively connected with instrument pups at the upper end and the lower end, wherein the female snap end connector 1 is installed at one end of the drill collar shell 5 and is connected with the last instrument pup (such as a pushing-while-drilling setting module) together with the end part of the drill collar shell 5. The drill collar shell 5 can play a good role in protecting the internal female buckle end connector 1, the turbine guide wheel device 2, the generator body 3 and the circuit framework 4.
In an exemplary embodiment, as shown in fig. 6, the generator body 3 includes a generator female head 31, an end surface long plug 32, a rotor 33, a stator 34, a generator housing 35 and an end surface short plug 36, the generator housing 35 is a hollow cylindrical structure with two open ends, and the end surface long plug 32 and the end surface short plug 36 are respectively mounted at two ends of the generator housing 35; the rotor 33 and the stator 34 are mounted in a generator housing 35; the generator female head 31 is installed on the tail end of the end face long plug 32, the turbine guide wheel device 2 drives the rotor 33 to rotate, and the rotor 33 and the stator 34 rotate relatively to generate alternating current.
A7-core female head is arranged in the generator female head 31, and the 7-core female head is a standard part and plays a role of a patch cord. The generator shell 35 is used as a main body structure, a rotor 33 and a stator 34 which can rotate relatively are installed inside the generator shell 35 (the stator 34 is fixed), an end face long plug 32 and an end face short plug 36 are respectively installed at two ends of the generator shell 35 (the end face long plug 32 is arranged at one end close to the female buckle end connector 1), the turbine guide wheel device 2 drives the rotor 33 to rotate relative to the stator 34 under the washing of slurry, the rotor 33 generates electric energy through magnetic coupling and circumferential relative rotation relative to the stator 34, and alternating current is generated through the output of a conducting wire of the generator stator 34.
In an exemplary embodiment, as shown in fig. 1, 2, 3 and 6, the stator 34 is sleeved outside the rotor 33, two ends of the rotor 33 respectively extend out from two ends of the stator 34, and two ends of the rotor 33 are rotatably connected with the generator housing 35 through bearings.
The stator 34 is a hollow cylinder structure with a hollow channel, the rotor 33 is installed in the hollow channel, the rotor 33 is not contacted with the stator 34, the length of the rotor 33 is larger than that of the stator 34, two ends of the rotor 33 respectively extend out from two ends of the stator 34, and two extending ends of the rotor 33 are rotatably connected with the generator shell 35 through bearings. It should be noted that the bearings are installed at both ends of the rotor 33, and "both ends" herein does not mean only the portion of the rotor 33 abutting against the end face, but the bearings may also be installed at a position spaced from the end face of the rotor 33.
In an exemplary embodiment, as shown in fig. 2, a slanted hole wire cover 37 is further included, and the slanted hole wire cover 37 is mounted on the end short plug 36. A mounting through hole (hollow passage) is provided in the rotor 33, and a wire rod 38 is provided in the mounting through hole. A gap is arranged between the wire rod 38 and the installation through hole, two ends of the wire rod 38 respectively extend out from two ends of the rotor 33, a first end 381 of the wire rod 38 is connected with the inclined hole wire passing top cover 37, and a second end 382 of the wire rod 38 is installed in the generator female head 31.
In an exemplary embodiment, as shown in fig. 2, the inclined hole wire passing top cover 37 is provided with a wire passing hole 371, a wire passes through the wire passing hole 371, and two ends of the wire are respectively connected with the stator 34 and the end short plug 36. The number of the conductive wires may be set to three.
The lead is connected with the stator 34 and the end face short plug 36, and conducts the generated current to the end face short plug 36, the end face short plug 36 is connected with the circuit framework 4, and the circuit framework 4 converts the alternating current generated by the generator body 3 into direct current. The end face short plug 36 is mounted at one end of the generator housing 35, connects the generator housing 35 and the circuit framework 4, and fixes the inclined hole wire passing top cover 37 and the generator stator 34 in the axial direction.
In an exemplary embodiment, as shown in fig. 3 and fig. 6, the downhole high-power generator structure further includes a coupler assembly 39, the coupler assembly 39 is sleeved outside the end surface long plug 32, the turbine guide wheel device 2 drives the coupler assembly 39 to rotate, and the coupler assembly 39 drives the rotor 33 to rotate through magnetic force.
The end face long plug 32 and the generator female head 31 jointly axially limit the coupler assembly body 39, and the coupler assembly body 39 is prevented from moving axially under the driving of the turbine guide wheel device 2. The end face choke 32 is connected with the drill collar housing 5 and fixes the generator stator 34 in the drill collar housing 5 in the axial direction. The generator rotor 33 is driven by the coupler assembly 39 to rotate, and the generator rotor 33 and the generator stator 34 generate electric energy through magnetic coupling and circumferential relative rotation and output through three conducting wires of the generator stator 34 to generate alternating current.
In an exemplary embodiment, as shown in fig. 5, a limiting groove is disposed on the circuit framework 4, a positioning hole is correspondingly disposed on the drill collar housing 5, and the positioning member 7 is installed in the limiting groove through the positioning hole.
The limiting groove and the positioning piece 7 (such as a locking plug) are arranged, so that the circuit framework 4 can be axially and circumferentially limited, and the circuit framework 4 is prevented from shifting. The circuit frame 4 may include a motor frame and a generator processing circuit, wherein the motor processing circuit converts alternating current generated by the generator body 3 into direct current.
In the actual underground operation process, the circulating slurry continuously erodes the turbine in the turbine guide wheel device 2, the turbine drives the coupler assembly body 39 to rotate, and the coupler assembly body 39 drives the generator rotor 33 in the generator shell 35 to rotate under the action of magnetic force, so that the work of the whole high-power generator is ensured. Instability is caused by the fact that the axial high-speed rotation of each relevant fitting can cause severe vibration of the whole mechanical structure during actual downhole operation, and the mechanical structure is tightly connected and fixed before operation. On the premise of ensuring high coaxial degree of all components, the circuit framework 4 and the drill collar shell 5 are locked and fixed through a locking plug, so that the high-power generator circuit framework 4 shell and the high-power generator module drill collar shell 5 cannot rotate relatively, and the stability of the whole mechanical structure is further ensured; the 3 generator locking plugs are uniformly distributed along the circumference of the drill collar shell 5.
In an exemplary embodiment, as shown in fig. 4, a flow guiding locking ring 6 is disposed in an annular channel between the end of the circuit skeleton 4 away from the generator body 3 and the drill collar housing 5.
The coaxiality of the circuit framework 4, the drill collar shell 5, the generator body 3 and the like can be improved by arranging the flow guiding locking ring 6. Meanwhile, the flow guiding locking ring 6 is provided with an axial hole for slurry to pass through.
To the fixed of whole mechanical structure, except that locking end cap locking is fixed, 4 end connection water conservancy diversion locking rings 6 of circuit skeleton: on one hand, the fixing device is used for fixing the generator shell 35 and the drill collar shell 5 and ensuring that the whole mechanical structure has higher coaxiality; and the generator shell 35 and the drill collar shell 5 are locked in the axial direction, so that the generator shell 35 and the drill collar shell 5 cannot move relatively in the axial direction during underground actual operation. On the other hand, the circulating mud can flow through the axial hole of the flow guiding locking ring 6, so that the normal circulating flow of the mud is ensured.
In the description of the present application, it should be noted that the directions or positional relationships indicated by "upper", "lower", "one end", "the other end", and the like are based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the present application and simplifying the description, and do not indicate or imply that the structures referred to have a specific direction, are configured and operated in a specific direction, and thus, cannot be construed as limiting the present application.
In the description of the embodiments of the present application, unless expressly stated or limited otherwise, the terms "connected," "mounted," and "installed" are to be construed broadly, e.g., the term "connected" may be a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The embodiments described herein are exemplary rather than limiting and it will be apparent to those of ordinary skill in the art that many more embodiments and implementations are possible within the scope of the embodiments described herein. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are possible. Any feature or element of any embodiment may be used in combination with or instead of any other feature or element in any other embodiment, unless expressly limited otherwise.
The present application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features and elements that have been disclosed in this application may also be combined with any conventional features or elements to form unique aspects as defined by the claims. Any feature or element of any embodiment may also be combined with features or elements from other aspects to form another unique aspect as defined by the claims. Thus, it should be understood that any of the features shown and/or discussed in this application may be implemented alone or in any suitable combination. Accordingly, the embodiments are not limited except as by the appended claims and their equivalents. Furthermore, various modifications and changes may be made within the scope of the appended claims.
Claims (10)
1. A downhole high-power generator structure is characterized by comprising a drill collar shell, a female buckle end connector, a turbine guide wheel device, a generator body and a circuit framework which are arranged in the drill collar shell, wherein a channel for slurry to pass through is arranged between the female buckle end connector, the turbine guide wheel device, the generator body and the circuit framework and the inner wall of the drill collar shell,
the female buckle end connector is connected with the upper instrument short section; the slurry flows through the turbine guide wheel device and drives the turbine guide wheel device to rotate, and the turbine guide wheel device is connected with the generator body; the generator body is connected with the circuit framework.
2. The underground high-power generator structure as claimed in claim 1, wherein the generator body comprises a generator female head, an end face long plug, a rotor, a stator, a generator shell and an end face short plug,
the generator shell is of a hollow cylindrical structure with openings at two ends, and the end surface long plug and the end surface short plug are respectively arranged at two ends of the generator shell; the rotor and the stator are mounted in the generator housing; the generator female head is arranged at the tail end of the end surface long plug,
the turbine guide wheel device drives the rotor to rotate, and the rotor and the stator rotate relatively to generate alternating current.
3. The downhole high power generator structure of claim 2, wherein the stator is sleeved outside the rotor,
the two ends of the rotor respectively extend out of the two ends of the stator, and the two ends of the rotor are rotatably connected with the generator shell through bearings.
4. The underground high-power generator structure of claim 2, further comprising an inclined hole wire passing top cover, wherein the inclined hole wire passing top cover is mounted on the end face short plug.
5. The downhole high power generator structure of claim 4, wherein a mounting through hole is provided in the rotor, and a wire passing rod is provided in the mounting through hole.
6. The underground high-power generator structure of claim 5, wherein a gap is provided between the wire passing rod and the mounting through hole,
the two ends of the wire passing rod respectively extend out of the two ends of the rotor, the first end of the wire passing rod is connected with the inclined hole wire passing top cover, and the second end of the wire passing rod is installed in the generator female head.
7. The underground high-power generator structure as claimed in claim 4, wherein the inclined hole wire passing top cover is provided with a wire passing hole, a wire passes through the wire passing hole, and two ends of the wire are respectively connected with the stator and the end face short plug.
8. The underground high-power generator structure as claimed in any one of claims 2 to 7, further comprising a coupler assembly, wherein the coupler assembly is sleeved outside the end surface long plug,
the turbine guide wheel device drives the coupler assembly body to rotate, and the coupler assembly body drives the rotor to rotate through magnetic force.
9. The downhole high-power generator structure as claimed in any one of claims 1 to 7, wherein a flow guiding locking ring is arranged in an annular channel between the end of the circuit framework far away from the generator body and the drill collar housing.
10. The underground high-power generator structure as claimed in any one of claims 1 to 7, wherein the circuit framework is provided with a limiting groove, the drill collar housing is correspondingly provided with a positioning hole, and a positioning member is installed into the limiting groove through the positioning hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023031732.7U CN214366520U (en) | 2020-12-16 | 2020-12-16 | Underground high-power generator structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023031732.7U CN214366520U (en) | 2020-12-16 | 2020-12-16 | Underground high-power generator structure |
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| Publication Number | Publication Date |
|---|---|
| CN214366520U true CN214366520U (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023031732.7U Active CN214366520U (en) | 2020-12-16 | 2020-12-16 | Underground high-power generator structure |
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|---|---|
| CN (1) | CN214366520U (en) |
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2020
- 2020-12-16 CN CN202023031732.7U patent/CN214366520U/en active Active
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