CN114704220B - Electromagnetic fisher for horizontal well - Google Patents
Electromagnetic fisher for horizontal well Download PDFInfo
- Publication number
- CN114704220B CN114704220B CN202210254908.XA CN202210254908A CN114704220B CN 114704220 B CN114704220 B CN 114704220B CN 202210254908 A CN202210254908 A CN 202210254908A CN 114704220 B CN114704220 B CN 114704220B
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- Prior art keywords
- outer cylinder
- iron core
- cylinder body
- horizontal well
- metal materials
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/06—Fishing for or freeing objects in boreholes or wells using magnetic means
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Abstract
The application relates to the field of underground mechanical equipment, in particular to a horizontal well electromagnetic fisher. An electromagnetic fisher for a horizontal well comprises an electromagnetic assembly, a collecting piece and a pushing assembly; the electromagnetic assembly comprises an outer cylinder body, an excitation iron core and a power supply unit; the excitation iron core extends along the axial direction of the outer cylinder body and is accommodated in the outer cylinder body, the excitation iron core is electrically connected with the power supply unit, and the excitation iron core is used for forming a magnetic field for adsorbing metal materials in an electrically conducted state; the collecting piece is connected with the outer cylinder body and is used for adsorbing metal materials; the pushing component is connected with the outer cylinder body; the material collecting pieces and the material pushing components are distributed at two ends of the outer cylinder along the axial direction of the outer cylinder; the pushing component is used for pushing the metal materials adsorbed by the exciting iron core into the collecting piece. The horizontal well electromagnetic fisher can adsorb metal materials, can concentrate the adsorbed metal materials in the aggregate piece, and prevents the metal materials from falling back into the well, so that the adsorption quantity can be increased, and the adsorption efficiency is improved.
Description
Technical Field
The application relates to the field of underground mechanical equipment, in particular to a horizontal well electromagnetic fisher.
Background
Along with the increasing demands of people for high-quality life, the demand of society for energy is increasing, but at the same time, the exploitation difficulty of fossil energy is also increasing along with more severe geology, storage, output and safety conditions, and higher demands are also put on drilling processes in exploitation processes of petroleum and natural gas resources such as land, the drilling processes often need to consider drilling technologies of horizontal wells and ultra-deep wells, metal scraps, small metal devices or a large amount of metal junks are often generated in the drilling processes to suspend or deposit in the wells, and if salvaging is not carried out timely, instruments or tools which are placed in the wells can be damaged, such as vertical wells can be placed into strong magnets for adsorption and salvaging to the ground, but if horizontal well sections need to consider scrap iron and junks to deposit in the well wall, and prevent the adsorbed junks from falling back into the wells again, and the junks of the vertical wells are more difficult to salvage relative to the well wall of the vertical wells.
And when salvaging the horizontal well, the prior art has the problems of small salvaging amount, small adsorption force, easy falling and low salvaging efficiency.
Disclosure of Invention
The application provides a horizontal well electromagnetic fisher to improve the above-mentioned problem.
The invention is specifically as follows:
an electromagnetic fisher for a horizontal well comprises an electromagnetic assembly, a collecting piece and a pushing assembly;
the electromagnetic assembly comprises an outer cylinder body, an excitation iron core and a power supply unit; the excitation iron core extends along the axial direction of the outer cylinder body and is accommodated in the outer cylinder body, the excitation iron core is electrically connected with the power supply unit, and the excitation iron core is used for forming a magnetic field for adsorbing metal materials in an electrically conducted state;
the collecting piece is connected with the outer cylinder body and is used for adsorbing metal materials;
the pushing component is connected with the outer cylinder body; the material collecting pieces and the material pushing components are distributed at two ends of the outer cylinder along the axial direction of the outer cylinder; the pushing component is used for pushing the metal materials adsorbed by the exciting iron core into the collecting piece.
In one embodiment of the invention, the pushing assembly comprises a motor, a piston and a transmission unit;
the motor is connected with the outer cylinder body and is electrically connected with the power supply unit; the piston is sleeved on the excitation iron core and is connected with the outer cylinder in a sliding manner along the axial direction of the outer cylinder; the transmission unit is connected with the motor and the piston in a transmission way;
the motor is used for driving the piston to move relative to the exciting iron core through the transmission unit so as to push the metal materials adsorbed on the outer peripheral surface of the exciting iron core to the collecting piece.
In one embodiment of the invention, the transmission unit comprises a gear frame, at least one transmission shaft and at least one transmission wheel;
the gear rack is connected with the outer cylinder body, and the gear rack and the collecting pieces are distributed at two ends of the outer cylinder body in the axial direction; one end of the excitation iron core, which is away from the aggregate piece, is connected with the gear rack; the motor is connected with the gear rack; the power supply unit is connected with the gear rack; the end of the gear frame, which is connected with the exciting iron core and the gear frame, is provided with a channel for the transmission shaft to pass through;
the transmission shaft is connected with the piston and extends along the axial direction of the outer cylinder body;
the transmission gear is rotatably connected with the gear frame, sleeved on the transmission shaft and in threaded connection with the transmission shaft; the transmission gear is in transmission connection with an output shaft of the motor;
the motor is used for driving the transmission gear to rotate relative to the gear rack so as to drive the transmission shaft to reciprocate along the axis of the outer cylinder body and further drive the piston to reciprocate along the axis of the outer cylinder body.
In one embodiment of the invention, the power supply unit includes a battery and a protective cylinder;
the protection cylinder is connected with the gear rack, and the outer cylinder body and the protection cylinder are respectively connected with two ends of the gear rack along the axial direction of the outer cylinder body;
the motor and the battery are accommodated in the protection cylinder; the battery is electrically connected with the motor and the excitation iron core; the protection cylinder is used for being connected with the drill rod.
In one embodiment of the present invention, the outer circumference of the protective cylinder is provided with a plurality of drain holes around its axis.
In one embodiment of the invention, the horizontal well electromagnetic latch jack further comprises a power generation assembly, wherein the power generation assembly is electrically connected with the battery;
the power generation assembly comprises a generator, a turbine rotor and a turbine stator; the generator is accommodated in the protection cylinder; the turbine stator is connected with the protection cylinder; the turbine rotor is communicated with an external drilling fluid pipe and is in transmission connection with an input shaft of the generator, and the turbine rotor is used for rotating under the action of the drilling fluid so as to drive the generator to generate electricity.
In one embodiment of the invention, the horizontal well electromagnetic fisher further comprises a pulling and pressing sensor and a sealing ring;
one end of the excitation iron core, which faces the gear frame, is connected with the tension and compression sensor, and the sealing ring is arranged at the joint of the excitation iron core and the tension and compression sensor.
In one embodiment of the invention, the horizontal well electromagnetic latch jack further comprises a metal detection unit, wherein the metal detection unit is used for detecting metal materials outside the outer cylinder body.
In one embodiment of the invention, the outer circumferential surface of the outer cylinder body is provided with a plurality of through holes; the plurality of through holes are arranged around the axis direction of the outer cylinder.
In one embodiment of the invention, the collection piece comprises a collection cylinder and a plurality of magnets;
the material collecting barrel is connected with the outer barrel body and communicated with the outer barrel body, and a plurality of magnets are distributed on the inner peripheral wall of the material collecting barrel around the axis of the outer barrel body.
The beneficial effects of the invention are as follows:
the horizontal well electromagnetic fisher comprises an electromagnetic assembly, a material collecting piece and a material pushing assembly; the electromagnetic assembly comprises an outer cylinder body, an excitation iron core and a power supply unit; the exciting iron core extends along the axial direction of the outer cylinder body and is accommodated in the outer cylinder body, the exciting iron core is electrically connected with the power supply unit, and the exciting iron core is used for forming a magnetic field for adsorbing metal materials in an electrically conducted state; the collecting piece is connected with the outer cylinder body and is used for adsorbing metal materials; the pushing component is connected with the outer cylinder body; the material collecting pieces and the material pushing components are distributed at two ends of the outer cylinder along the axial direction of the outer cylinder; the pushing component is used for pushing the metal materials adsorbed by the exciting iron core into the collecting piece.
Therefore, in the working process of the horizontal well electromagnetic fisher, a magnetic field for adsorbing metal materials can be formed through the exciting magnet core in an electrically conducted state, and the adsorption force on the metal materials in the fishing process can be improved; and in-process that excitation iron core passes through magnetic force and adsorbs the metal material can be with the metal material propelling movement that is adsorbed by excitation iron core to gather in the piece that gathers materials through pushing away the material subassembly to can improve the adsorption quantity through such setting mode, can also prevent simultaneously that the metal material from falling back in the well.
In conclusion, the horizontal well electromagnetic fisher can adsorb metal materials, can concentrate the adsorbed metal materials in the collecting piece, can increase the adsorption quantity and improve the adsorption efficiency while preventing the metal materials from falling back into the well.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a cross-sectional view of a horizontal well electromagnetic latch jack provided herein;
FIG. 2 is a partial cross-sectional view of the horizontal well electromagnetic latch jack provided herein;
FIG. 3 is a schematic view of the aggregate provided herein;
fig. 4 is a schematic structural view of the exciting core provided in the present application;
FIG. 5 is a schematic illustration of the connection of the piston and drive shaft provided herein;
FIG. 6 is a schematic structural view of the outer cylinder provided in the present application;
FIG. 7 is a schematic view of a gear carrier provided herein;
fig. 8 is a schematic structural view of a protection barrel provided in the present application.
Icon: 10-a horizontal well electromagnetic fisher; 11-an electromagnetic assembly; 12-aggregate pieces; 13-a pushing assembly; 14-an outer cylinder; 15-exciting iron core; 16-a power supply unit; 17-an electric motor; 18-a piston; 19-a transmission unit; 20-gear carrier; 21-a transmission shaft; 22-a driving wheel; 201-channel; 23-a first gear; 24-a second gear; 202-a first groove; 203-a second groove; 25-cell; 26-a protective cylinder; 261-drainage holes; 27-a power generation assembly; a 28-generator; 29-a turbine rotor; 30-a turbine stator; 31-a pull-press sensor; 32-sealing rings; 33-a metal detection unit; 141-a through hole; 34-a material collecting cylinder; 35-magnet; 341-mounting slots.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the embodiments of the present application, it should be noted that, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is conventionally put when the product of the application is used, or the orientation or positional relationship that is conventionally understood by those skilled in the art, or the orientation or positional relationship that is conventionally put when the product of the application is used, which is merely for convenience of describing the application and simplifying the description, and is not indicative or implying that the device or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the application. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
Referring to fig. 1, the present invention provides a horizontal well electromagnetic fisher 10, which includes an electromagnetic assembly 11, a collecting member 12 and a pushing assembly 13;
the electromagnetic assembly 11 comprises an outer cylinder 14, an excitation iron core 15 and a power supply unit 16; the exciting iron core 15 extends along the axial direction of the outer cylinder 14 and is accommodated in the outer cylinder 14, the exciting iron core 15 is electrically connected with the power supply unit 16, and the exciting iron core 15 is used for forming a magnetic field for adsorbing metal materials in an electrically conducted state; it should be noted that the metal materials refer to metal scraps and small-sized metal devices suspended or deposited in the well;
the collecting piece 12 is connected with the outer cylinder 14 and is used for adsorbing metal materials;
the pushing component 13 is connected with the outer cylinder 14; the aggregate pieces 12 and the pushing components 13 are distributed at two ends of the outer cylinder 14 along the axial direction of the outer cylinder 14; the pushing component 13 is used for pushing the metal materials absorbed by the exciting iron core 15 into the collecting piece 12.
The working principle of the horizontal well electromagnetic fisher 10 is as follows:
referring to fig. 1, the horizontal well electromagnetic latch jack 10 includes an electromagnetic assembly 11, a collecting member 12 and a pushing assembly 13; the electromagnetic assembly 11 comprises an outer cylinder 14, an excitation iron core 15 and a power supply unit 16; the exciting iron core 15 extends along the axial direction of the outer cylinder 14 and is accommodated in the outer cylinder 14, the exciting iron core 15 is electrically connected with the power supply unit 16, and the exciting iron core 15 is used for forming a magnetic field for adsorbing metal materials in an electrically conducted state; the collecting piece 12 is connected with the outer cylinder 14 and is used for adsorbing metal materials; the pushing component 13 is connected with the outer cylinder 14; the aggregate pieces 12 and the pushing components 13 are distributed at two ends of the outer cylinder 14 along the axial direction of the outer cylinder 14; the pushing component 13 is used for pushing the metal materials absorbed by the exciting iron core 15 into the collecting piece 12.
Therefore, in the working process of the horizontal well electromagnetic fisher 10, a magnetic field for adsorbing metal materials can be formed by exciting the magnet core 15 in an electrically conducted state, so that the adsorption force on the metal materials in the fishing process can be improved; and in the process that the exciting iron core 15 adsorbs the metal materials through magnetic force, the metal materials adsorbed by the exciting iron core 15 can be pushed into the collecting piece 12 to be collected through the pushing component 13, so that the adsorption quantity can be improved through the arrangement mode, and meanwhile, the metal materials can be prevented from falling back into the well.
In summary, the horizontal well electromagnetic latch jack 10 can adsorb metal materials, and can concentrate the adsorbed metal materials in the collecting member 12, thereby preventing the metal materials from falling back into the well, and increasing the adsorption capacity and the adsorption efficiency.
Further, referring to fig. 1 to 8, in the present embodiment, when the pushing assembly 13 is provided, the pushing assembly 13 is used to transfer the metal material into the collecting member 12 when the metal material absorbed by the exciting core 15 reaches a certain amount, so as to increase the absorption amount of the horizontal well electromagnetic fisher 10 and prevent the metal material from falling back into the well;
specifically, the pushing component 13 includes a motor 17, a piston 18 and a transmission unit 19; the motor 17 is connected with the outer cylinder 14, and the motor 17 is electrically connected with the power supply unit 16; the piston 18 is sleeved on the excitation iron core 15 and is slidably connected with the outer cylinder 14 along the axial direction of the outer cylinder 14; the transmission unit 19 is in transmission connection with the motor 17 and the piston 18;
the motor 17 is used for driving the piston 18 to move relative to the exciting iron core 15 through the transmission unit 19 so as to push the metal materials adsorbed on the outer peripheral surface of the exciting iron core 15 to the collecting piece 12.
Therefore, when the metal materials adsorbed by the exciting iron core 15 are required to be transferred to the collecting piece 12, the motor 17 drives the transmission unit 19 to work, the piston 18 can be driven to move along the axis of the outer cylinder 14, and the metal materials adsorbed by the exciting iron core 15 can be transferred to the collecting piece 12 through the reciprocating motion of the piston 18.
In the present embodiment, as shown in fig. 1 to 8, when the collecting member 12 is disposed, the collecting member 12 includes a collecting cylinder 34 and a plurality of magnets 35 to absorb the metal material; the cylinder 34 is connected to the outer cylinder 14 and is in communication with the outer cylinder 14, and a plurality of magnets 35 are distributed around the axis of the outer cylinder 14 on the inner peripheral wall of the cylinder 34. That is, the aggregate 12 can adsorb the metal material through the plurality of magnets 35 provided in the aggregate cylinder 34, thereby preventing the metal material from falling back into the well. Specifically, the aggregate 12 may be threadably coupled to the outer barrel 14 to facilitate cleaning of the adsorbed metal material within the cartridge 34; in order to facilitate the installation of the magnet 35, a plurality of installation grooves 341 are formed in the cartridge 34; specifically, the screw thread is arranged at one end of the aggregate cylinder 34 for being in butt joint with the outer cylinder 14, and the screw thread is arranged at one end of the outer cylinder 14 for being in butt joint with the aggregate 12, so that certain sealing is ensured in a mode of screw thread connection between the outer cylinder 14 and the aggregate cylinder 34; the bottom of the material collecting barrel 34 is spherical, 2-6 square grooves are uniformly distributed on the inner wall of the material collecting barrel around the axis of the outer barrel 14, and at least one bar magnet 35 is correspondingly accommodated in each square groove.
In order to enable the piston 18 to move along the axis of the outer cylinder 14 under the driving action of the transmission unit 19, the transmission unit 19 may comprise a gear frame 20, at least one transmission shaft 21 and at least one transmission wheel 22;
the gear rack 20 is connected with the outer cylinder 14, and the gear rack 20 and the collecting pieces 12 are distributed at two ends of the outer cylinder 14 in the axial direction; one end of the exciting iron core 15, which is away from the collecting piece 12, is connected with a gear rack 20; the motor 17 is connected with the gear rack 20; the power supply unit 16 is connected with the gear rack 20; the gear frame 20 and one end of the exciting iron core 15 connected with the gear frame 20 are respectively provided with a channel 201 for the transmission shaft 21 to pass through;
the transmission shaft 21 is connected to the piston 18 and extends in the axial direction of the outer cylinder 14;
the transmission gear is rotatably connected with the gear frame 20, sleeved on the transmission shaft 21 and in threaded connection with the transmission shaft 21; the transmission gear is in transmission connection with an output shaft of the motor 17;
the motor 17 is used to drive the drive gear to rotate relative to the gear frame 20 to drive the drive shaft 21 to reciprocate along the axis of the outer cylinder 14 and thus drive the piston 18 to reciprocate along the axis of the outer cylinder 14.
Thus, by means of the arrangement, the transmission shaft 21 is slidably arranged along the axis of the outer cylinder 14 relative to the gear frame 20 and the exciting iron core 15, and when the transmission gear rotates under the driving action of the motor 17, the transmission gear is in threaded fit with the transmission shaft 21, so that the rotation of the transmission gear drives the transmission shaft 21 to slide along the axis of the outer cylinder 14, and further drives the piston 18 to move along the axis of the outer cylinder 14 relative to the exciting iron core 15, so that by means of the arrangement, the reciprocating motion of the piston 18 relative to the exciting iron core 15 can be determined by the reverse operation of the motor 17, and further the metal materials adsorbed by the exciting iron core 15 are transferred into the collecting member 12.
It should be noted that, referring to fig. 1 to 8, in the present embodiment, a manner of setting a plurality of transmission shafts 21 is adopted, and thus, since each transmission shaft 21 corresponds to one channel 201, one end of the gear rack 20 and the exciting iron core 15 connected to the gear rack 20 is provided with a plurality of channels 201 around the axis of the outer cylinder 14;
similarly, a plurality of transmission gears are provided for equalizing the force of the movement of the driving piston 18; specifically, the transmission gear comprises a first gear 23 and a plurality of second gears 24, the first gear 23 is in transmission connection with an output shaft of the motor 17, and each second gear 24 is correspondingly sleeved on one transmission shaft 21 and is in threaded connection with the corresponding transmission shaft 21;
in order to correspondingly install the first gear 23 and the plurality of second gears 24, a first groove 202 and a plurality of second grooves 203 are provided on a side of the gear rack 20 facing the protection cylinder 26, and the plurality of second grooves 203 are communicated with the first groove 202; the first gears 23 are rotatably disposed in the first grooves 202, and each of the second gears 24 is rotatably disposed in one of the second grooves 203, and the plurality of second gears 24 are engaged with the first gears 23; and each second groove 203 is provided with a channel 201 in sliding fit with the transmission shaft 21, that is, the channels 201 provided on the gear frame 20 and through which the transmission shaft 21 passes are all positioned at the bottoms of the second grooves 203 for accommodating the corresponding second gears 24.
Further, referring to fig. 1 to 8, in the present embodiment, in order to supply electric power to the exciting core 15 and the motor 17, the power supply unit 16 includes a battery 25 and a protection cylinder 26; the protection cylinder 26 is connected with the gear rack 20, and the outer cylinder 14 and the protection cylinder 26 are respectively connected with two ends of the gear rack 20 along the axial direction of the outer cylinder 14;
the motor 17 and the battery 25 are accommodated in the protection cylinder 26; the battery 25 is electrically connected with the motor 17 and the exciting core 15; the protective sleeve 26 is intended to be connected to a drill rod. And the outer circumference of the protection cylinder 26 is provided with a plurality of drain holes 261 around its axis. Specifically, the plurality of drain holes 261 may be distributed in a plurality of rows along the axis of the protection cylinder 26, and 4 to 8 drain holes 261 are uniformly provided in each row in the circumferential direction.
In order to improve the use efficiency of the horizontal well electromagnetic fisher 10, in this embodiment, the horizontal well electromagnetic fisher 10 further includes a power generation assembly 27, and the power generation assembly 27 is electrically connected to the battery 25;
the power generation assembly 27 includes a generator 28, a turbine rotor 29, and a turbine stator 30; the generator 28 is accommodated in the protection cylinder 26; the turbine stator 30 is connected with the protective cylinder 26; the turbine rotor 29 is in communication with an external drilling fluid pipe and is in driving connection with the input shaft of the generator 28, and the turbine rotor 29 is configured to rotate under the action of the drilling fluid, thereby driving the generator 28 to generate electricity.
Thus, by this arrangement, the horizontal well electromagnetic latch jack 10 can generate electricity using the high-speed drilling fluid, and can generate electricity by the electricity generating module 27, and supply the electric energy to the exciting core 15 and the motor 17, or store the electric energy in the battery 25.
Further, referring to fig. 1-8, in the present embodiment, the horizontal well electromagnetic latch 10 further includes a pull-press sensor 31 and a seal ring 32; one end of the exciting core 15 facing the gear frame 20 is connected with a tension and compression sensor 31, and a sealing ring 32 is arranged at the connection part of the exciting core 15 and the tension and compression sensor 31. Specifically, the end of the exciting iron core 15 facing the gear frame 20 is provided with a thread in threaded connection with the tension and compression sensor 31, and a sealing ring 32 is arranged between the contact surfaces of the exciting iron core 15 and the tension and compression sensor 31 to ensure the sealing of the exciting iron core 15 and the tension and compression sensor 31.
Referring to fig. 1-8, in the present embodiment, the horizontal well electromagnetic latch 10 further includes a metal detection unit 33, and the metal detection unit 33 is used for detecting the metal material outside the outer cylinder 14. The metal detection unit 33 may be an underwater camera, an infrared camera or a metal sensor, and is used for detecting the accumulation of metal materials outside the outer cylinder 14. In the present embodiment, however, the metal detection unit 33 employs a plurality of underwater cameras or infrared cameras provided on the outer peripheral surface thereof around the axis of the protective cylinder 26.
In the present embodiment, the outer circumferential surface of the outer cylinder 14 is provided with a plurality of through holes 141; the plurality of through holes 141 are provided around the axial direction of the outer cylinder 14. The plurality of through holes 141 are uniformly distributed around the axis of the outer cylinder 14, and the central angle of two adjacent through holes 141 relative to the axis of the outer cylinder 14 is 30-90 degrees; the plurality of through holes 141 are each used for fluid supply to exit the outer cylinder 14.
Based on the above, please refer to fig. 1-8, it should be further noted that in this embodiment, the gear rack 20 is conical, and the connection between the outer cylinder 14 and the aggregate cylinder 34, the connection between the outer cylinder 14 and the gear rack 20, the connection between the exciting core 15 and the gear rack 20, the connection between the gear rack 20 and the protection cylinder 26, and the connection between the exciting core 15 and the tension and compression sensor 31 may all adopt a threaded connection or a bolt connection manner, so that corresponding structures for implementing threaded connection or bolt connection may be provided at the butt joint of the foregoing structures, which will not be repeated herein.
Referring to fig. 1-8, the horizontal well electromagnetic latch jack 10 operates as follows:
connecting the power generation assembly 27 of the horizontal well electromagnetic latch 10 with drilling fluid and connecting the protection cylinder 26 with drill pipe to be lowered into the well by the movement of the drill pipe;
the metal detection unit 33 is used for collecting images outside the outer cylinder 14 and determining the working states of the exciting iron core 15 and the motor 17 according to image analysis;
according to image analysis, when the exciting iron core 15 is adjusted to a working state, the exciting iron core 15 is in an electrically conducting state and generates a magnetic field for adsorbing metal materials, so that surrounding scrap iron and metal falling objects are adsorbed; at this time, the horizontal well electromagnetic fisher 10 may utilize the electric energy of the battery 25 to drive the exciting iron core 15 to generate a magnetic field for adsorbing the metal material; or, the power generation assembly 27 generates power by using high-speed drilling fluid, and the generated power can be provided to the exciting iron core 15 or the motor 17 or can be stored in the battery 25;
when the adsorbate on the surface of the exciting iron core 15 reaches a certain amount, the motor 17 starts to work, so that the piston 18 moves from one end away from the collecting piece 12 to one end close to the collecting piece 12, and the adsorbate on the surface of the exciting iron core 15 is pushed into the collecting piece 12;
when the metal materials move towards the direction of the aggregate 12 under the action of the piston 18, the magnet 35 in the aggregate cylinder 34 can firmly adsorb the collected scrap iron and metal falling objects, so as to prevent the scrap iron and the metal falling objects from flowing out along with liquid flow;
the horizontal well electromagnetic fisher 10 is lifted to the ground along with the drill rod, the collecting piece 12 at the bottom is rotated out to clean the adsorbate in the horizontal well electromagnetic fisher, and the horizontal well electromagnetic fisher is installed back to the collecting piece 12 after cleaning is completed and waits for the next use.
To sum up, referring to fig. 1-8, the horizontal well electromagnetic latch jack 10 has the following advantages:
the horizontal well electromagnetic fisher 10 can utilize high-speed drilling fluid to drive the generator 28 to generate electricity through the turbine rotor 29, and the generated electric energy can be supplied to the exciting iron core 15 to generate strong magnetic force, so that a large amount of scrap iron and falling objects can be adsorbed; the horizontal well electromagnetic fisher 10 is provided with the metal detection unit 33, and can determine the deposition place of the falling objects and the amount of the absorbed falling objects, so that the magnetic force of the exciting iron core 15 and the switch are controlled, the absorbed objects are prevented from being absorbed by steel appliances or well walls in the well descending process, the absorbed objects can be concentrated in the material collecting barrel 34 and prevented from falling back into the well, the salvaging process is fully automatic, the operation by ground personnel is not needed, the absorption amount is large, and the efficiency is high.
The foregoing is merely a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and variations may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims (6)
1. The utility model provides a horizontal well electromagnetism fisher which characterized in that:
the horizontal well electromagnetic fisher comprises an electromagnetic assembly, a collecting piece and a pushing assembly;
the electromagnetic assembly comprises an outer cylinder body, an excitation iron core and a power supply unit; the exciting iron core extends along the axial direction of the outer cylinder body, is accommodated in the outer cylinder body, is electrically connected with the power supply unit, and is used for forming a magnetic field for adsorbing metal materials in an electrically conducted state;
the collecting piece is connected with the outer cylinder body and is used for adsorbing the metal materials;
the pushing component is connected with the outer cylinder body; the aggregate pieces and the pushing components are distributed at two ends of the outer cylinder along the axial direction of the outer cylinder; the pushing assembly is used for pushing the metal materials adsorbed by the exciting iron core into the collecting piece;
the pushing assembly comprises a motor, a piston and a transmission unit;
the motor is connected with the outer cylinder body, and the motor is electrically connected with the power supply unit; the piston is sleeved on the excitation iron core and is connected with the outer cylinder in a sliding manner along the axial direction of the outer cylinder; the transmission unit is connected with the motor and the piston in a transmission way;
the motor is used for driving the piston to move relative to the exciting iron core through the transmission unit so as to push the metal materials adsorbed on the outer peripheral surface of the exciting iron core to the collecting piece;
the transmission unit comprises a gear frame, at least one transmission shaft and at least one transmission wheel;
the gear rack is connected with the outer cylinder body, and the gear rack and the collecting pieces are distributed at two ends of the outer cylinder body in the axial direction; one end of the excitation iron core, which is away from the material collecting piece, is connected with the gear rack; the motor is connected with the gear rack; the power supply unit is connected with the gear rack; the end, connected with the gear rack, of the excitation iron core is provided with a channel for the transmission shaft to pass through;
the transmission shaft is connected with the piston and extends along the axial direction of the outer cylinder body;
the driving wheel is rotatably connected with the gear rack, sleeved on the transmission shaft and in threaded connection with the transmission shaft; the driving wheel is in transmission connection with an output shaft of the motor;
the motor is used for driving the driving wheel to rotate relative to the gear rack so as to drive the transmission shaft to reciprocate along the axis of the outer cylinder body and further drive the piston to reciprocate along the axis of the outer cylinder body;
the outer circumferential surface of the outer cylinder body is provided with a plurality of through holes; the through holes are arranged around the axial direction of the outer cylinder body;
the material collecting piece comprises a material collecting barrel and a plurality of magnets;
the material collecting barrel is connected with the outer barrel body and communicated with the outer barrel body, and a plurality of magnets are distributed on the inner peripheral wall of the material collecting barrel body around the axis of the outer barrel body.
2. The horizontal well electromagnetic latch jack of claim 1 wherein:
the power supply unit comprises a battery and a protection cylinder;
the protection cylinder is connected with the gear frame, and the outer cylinder body and the protection cylinder are respectively connected with two ends of the gear frame along the axial direction of the outer cylinder body;
the motor and the battery are accommodated in the protection cylinder; the battery is electrically connected with the motor and the excitation iron core; the protection cylinder is used for being connected with a drill rod.
3. The horizontal well electromagnetic latch jack of claim 2 wherein:
the periphery of the protection cylinder is provided with a plurality of drain holes around the axis of the protection cylinder.
4. The horizontal well electromagnetic latch jack of claim 2 wherein:
the horizontal well electromagnetic fisher further comprises a power generation assembly, and the power generation assembly is electrically connected with the battery;
the power generation assembly comprises a generator, a turbine rotor and a turbine stator; the generator is accommodated in the protection cylinder; the turbine stator is connected with the protection cylinder; the turbine rotor is communicated with an external drilling fluid pipe and is in transmission connection with an input shaft of the generator, and the turbine rotor is used for rotating under the action of the drilling fluid so as to drive the generator to generate electricity.
5. The horizontal well electromagnetic latch jack of claim 1 wherein:
the horizontal well electromagnetic fisher further comprises a pulling and pressing sensor and a sealing ring;
one end of the exciting iron core, which faces the gear frame, is connected with the tension and compression sensor, and the sealing ring is arranged at the joint of the exciting iron core and the tension and compression sensor.
6. The horizontal well electromagnetic latch according to any one of claims 1-5, wherein:
the horizontal well electromagnetic fisher further comprises a metal detection unit, wherein the metal detection unit is used for detecting the metal materials outside the outer cylinder body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210254908.XA CN114704220B (en) | 2022-03-15 | 2022-03-15 | Electromagnetic fisher for horizontal well |
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| CN202210254908.XA CN114704220B (en) | 2022-03-15 | 2022-03-15 | Electromagnetic fisher for horizontal well |
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| CN114704220B true CN114704220B (en) | 2023-07-18 |
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