CN109681163B - Water injection well throwing and fishing type underground power generation device and method - Google Patents
Water injection well throwing and fishing type underground power generation device and method Download PDFInfo
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- CN109681163B CN109681163B CN201810500392.6A CN201810500392A CN109681163B CN 109681163 B CN109681163 B CN 109681163B CN 201810500392 A CN201810500392 A CN 201810500392A CN 109681163 B CN109681163 B CN 109681163B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 238000010248 power generation Methods 0.000 title claims abstract description 58
- 238000002347 injection Methods 0.000 title claims abstract description 50
- 239000007924 injection Substances 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 16
- 238000012360 testing method Methods 0.000 claims description 13
- 210000001503 joint Anatomy 0.000 claims description 9
- 238000005253 cladding Methods 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 8
- 238000004146 energy storage Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 241000251468 Actinopterygii Species 0.000 claims description 2
- 230000007774 longterm Effects 0.000 abstract description 7
- 210000002445 nipple Anatomy 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 11
- 238000005553 drilling Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 239000002332 oil field water Substances 0.000 description 3
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B1/00—Engines of impulse type, i.e. turbines with jets of high-velocity liquid impinging on blades or like rotors, e.g. Pelton wheels; Parts or details peculiar thereto
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
-
- 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
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- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Power Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention discloses a water injection well throwing and fishing type underground power generation device and a method, wherein the device comprises a hollow positioning short section and a throwing and fishing type power generation unit, the throwing and fishing type power generation unit is arranged in an inner cavity of the hollow positioning short section, a short section positive electrode joint and a short section negative electrode joint are arranged on the inner wall of the hollow positioning short section, the lower end of the throwing and fishing type power generation unit is connected with a positioning joint, the outer wall of the positioning joint is positioned on a positioning step formed in the inner wall of the hollow positioning short section, the positioning joint is provided with a positioning wet positive electrode joint and a positioning wet negative electrode joint, the positioning wet positive electrode joint and the positioning wet negative electrode joint are correspondingly connected with a positive electrode and a negative electrode of the throwing and fishing type power generation unit on one hand, and are correspondingly connected with the short section positive electrode joint and the short section negative electrode joint on the other hand. The invention can provide long-term and stable electric power energy for the underground intelligent water injection tool. The long-term normal work of the underground intelligent water injection device is ensured.
Description
Technical Field
The invention relates to the technical field of oilfield water injection development, in particular to a water injection well throwing and fishing type underground power generation device and method.
Background
In the field of oilfield water injection development, stratified water injection has become a main means for improving the water injection development effect, the development of the stratified water injection technology successively goes through four stages, the first stage is a fixed stratified water injection technology, a water nozzle is fixed, and the water injection amount cannot be adjusted; the second stage is a movable type layered water injection technology, and the movable water nozzle can be tested and allocated in a mode of throwing and fishing the water nozzle for multiple times; the third stage is a measurement and regulation integrated layered water injection technology, a water nozzle is arranged in a water distributor, and the measurement and regulation instruments are only needed to be put into the water distributor for completing the measurement and regulation work of each layer underground, and the technology is also a technology mainly applied and popularized in various oil fields at present; the fourth stage is a wireless intelligent layered water injection technology, underground real-time wireless measurement and adjustment are realized through an underground intelligent water distributor, complex and complicated workloads such as underground dropping, fishing, testing and adjustment are eliminated, underground real-time monitoring and dynamic adjustment are realized, and the technology is still in research and development and small-scale test stages at present.
The wireless intelligent layered water injection technology requires a long-term stable power supply system regardless of underground real-time monitoring and allocation or wireless data transmission. The underground circuit system is powered by a self-contained battery, is limited by the size of an underground space, and has smaller battery volume and battery capacity, so that higher requirements are put forward on the low-power-consumption design of the underground circuit system; secondly, in the battery power supply state, the underground real-time monitoring, intelligent allocation and data acquisition and real-time transmission can generate continuous high energy consumption, and the service life of the battery can be greatly influenced; the underground power supply battery is a disposable consumable product, cannot be charged and utilized circularly, and the frequent replacement of the battery means huge operation and production cost. At present, an energy storage battery is mature, the hydroelectric generation technology is relatively mature, and an oil field water injection well has a source of power generation power for stable injection of fluid, so that long-term and stable power guarantee can be provided for wireless intelligent layered water injection through the underground self-power generation technology of the water injection well.
Through searching, application number: 200810114632.5, published japanese patent application No. 2012-01-11 discloses a downhole power generation device, which is disposed in a downhole drilling system, wherein the drilling system includes a driving shaft for driving a drill bit to rotate and a guide support rotary sleeve sleeved outside the driving shaft, the downhole power generation device includes a generator, the generator is disposed in a space between the driving shaft and the guide support rotary sleeve and has a machine body and a rotor shaft, wherein the machine body of the generator is fixedly disposed on the guide support rotary sleeve, and a transmission mechanism is connected between the rotor shaft of the generator and the driving shaft of the drilling system and is used for transmitting the rotation power of the driving shaft to the rotor shaft. The underground power generation device can not only provide high-power electric energy in an underground drilling system, but also work without time limitation in the underground along with the drilling operation.
Although some downhole power generation devices are disclosed, the same technical scheme as the present invention is not disclosed in the publications, and many technical problems to be solved by the present invention cannot be solved by the searched publications. While the above publications do not suggest themselves to the present invention.
Disclosure of Invention
The invention aims to provide a water injection well throwing and fishing type underground power generation device and method, which can provide long-term and stable electric power energy for an underground intelligent water injection tool. The long-term normal work of the underground intelligent water injection device is ensured. The underground fishing power generation device is an independent part, can be used for maintenance once, can be reused for many times, and can be fished after being charged every time.
In order to achieve the purpose, the invention adopts the following technical scheme that the water injection well throwing and fishing type underground power generation device comprises a hollow positioning short section and a throwing and fishing type power generation unit, wherein the throwing and fishing type power generation unit is arranged in an inner cavity of the hollow positioning short section, a short section positive electrode joint and a short section negative electrode joint are arranged on the inner wall of the hollow positioning short section, the lower end of the throwing and fishing type power generation unit is connected with a positioning joint, the outer wall of the positioning joint is positioned on a positioning step formed in the inner wall of the hollow positioning short section, the positioning joint is provided with a positioning wet positive electrode joint and a positioning wet negative electrode joint, the positioning wet positive electrode joint and the positioning wet negative electrode joint are correspondingly connected with a positive electrode and a negative electrode of the throwing and fishing type power generation unit on one hand, and are correspondingly connected with the short section positive electrode joint and the short section negative electrode joint on the other hand.
The fishing type generator set comprises a power generation unit, a fishing head and a positioning joint, the lower end of the fishing head is connected to the upper end of a non-magnetic outer tube of the power generation unit, the positioning joint is connected to the lower end of the non-magnetic outer tube of the power generation unit, and the power generation unit is provided with one group or two or more groups which are sequentially connected in series.
The power generation unit comprises a non-magnetic outer tube, a central shaft, an inner magnet, a copper wire coil, a magnet cladding, a rectifying circuit, a guide vane and an inner magnetic rotary impeller, wherein the central shaft is located in a central cavity of the non-magnetic outer tube, the inner magnet and the copper wire coil are arranged on the central shaft, the magnet cladding is arranged outside the copper wire coil, the magnet cladding is fixed on the inner wall of the non-magnetic outer tube, the copper wire coil is led out of an anode lead and a cathode lead and then connected with the rectifying circuit, the guide vane and the inner magnetic rotary impeller are installed on the outer wall of the non-magnetic outer tube, and the inner magnetic rotary impeller and the inner magnet are located at the same height.
The positive pole of the rectifying circuit is connected with the wet positive pole joint of location through a circuit plug, and the negative pole of the rectifying circuit is connected with the wet negative pole joint of location.
The positioning joint is provided with an axial channel, and the axial direction of the axial channel corresponds to the guide impeller and the inner magnetic rotating impeller.
In order to achieve the purpose, the invention adopts the following technical scheme that a water injection well throwing and fishing type underground power generation method is characterized in that a hollow positioning short section is connected to a water injection pipe column, a central channel is arranged in the hollow positioning short section to meet the requirement of descending of a later-stage testing instrument, when the underground intelligent testing and adjusting device is insufficient in power, a throwing and fishing type power generator set is thrown into the hollow positioning short section from a water injection well mouth, the hollow positioning short section descends along the pipe column by means of self gravity and the impact force of injected water until the position of the positioning short section is in butt joint with the throwing and fishing type power generator set, and an annular water passing space is formed between the throwing and fishing type power generator set and the positioning short section; when normal water injection, oil pipe coming water direct impact throws impeller of formula generating set of salvaging, provide power generation, generating set begins work, convert fluid kinetic energy into the electric energy, charge for energy storage battery in the pit, fluid flows through generating set back and flows into central water injection passageway again, the back of finishing charging, carry fishing tool or backwash well hydraulic power help the mode of salvaging through the steel wire, salvage formula generating set in the pit, tubular column central channel reopens, satisfy the demand of going into under the later stage test instrument.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention provides a whole set of solution for charging the underground energy storage battery of the water injection well, and ensures the long-term normal work of the underground intelligent water injection device.
2. The underground throwing and fishing power generation device is an independent part, can be used for maintenance once, can be used repeatedly, and can be used for fishing after being charged every time.
3. The hollow positioning short section is internally provided with a water injection channel, so that the passing requirement of a test instrument can be met, and the normal production test of a water injection well cannot be influenced.
4. The invention adopts an independent generator set, and the length and the number of the impeller of the generator can be connected in series, thereby meeting the requirements of different power generation powers.
5. The device has the advantages of simple and compact structure, small influence caused by the size limitation of the shaft, capability of meeting the power generation requirement under the condition of small flow, simple installation and convenient use.
Drawings
FIG. 1 is a schematic structural view of a salvage type downhole power generation device for a water injection well according to the present invention;
fig. 2 is a schematic structural diagram of a fishing type generator set.
In the figure: a hollow positioning short section 101, a throwing and fishing type generator set 102, a positioning joint 103, a short section positive joint 104 and a short section negative joint 105;
the device comprises a fishing head 1, a guide impeller 2, an inner magnetic rotating impeller 3, an inner magnet 4, a copper wire coil 5, a magnet jacket 6, a negative electrode lead 7, a positive electrode lead 8, a central shaft 9, a rectifying circuit 10, a non-magnetic outer tube 11, a circuit plug 12, a positioning wet positive electrode joint 13 and a positioning wet negative electrode joint 14.
Detailed Description
The detailed description and technical contents of the present invention are described below with reference to the accompanying drawings, which are, however, for reference and illustration purposes only and are not intended to limit the present invention.
According to fig. 1, fig. 2, a formula of salvaging power generation facility in pit is thrown to water injection well, include hollow location nipple joint 101, throw and salvage formula generating set 102, throw and salvage formula generating set setting at hollow location nipple joint inner chamber, hollow location nipple joint inner wall sets up nipple joint positive terminal 104, nipple joint negative terminal 105, throw and salvage formula generating set lower extreme and connect locating joint 103, locating joint outer wall location is on the location step that the inner wall of hollow location nipple joint was seted up, locating joint sets up the wet positive terminal of location and connects 13, the wet negative terminal of location and connects 14, the wet positive terminal of location, the wet negative terminal of location correspond with the positive pole of throwing and salvaging formula generating set, negative pole on the one hand and are connected, and on the other hand corresponds with nipple joint positive terminal, nipple joint negative terminal and is connected.
The fishing type generator set comprises a power generation unit, a fishing head 1 and a positioning joint 103, wherein the lower end of the fishing head is connected to the upper end of a non-magnetic outer tube of the power generation unit, the positioning joint is connected to the lower end of the non-magnetic outer tube of the power generation unit, and the power generation unit is provided with one group or two or more groups which are sequentially connected in series.
The power generation unit comprises a non-magnetic outer tube 11, a central shaft 9, an inner magnet 4, a copper wire coil 5, a magnet cladding 6, a rectifying circuit 10, guide vanes 2 and an inner magnetic rotary impeller 3, wherein the central shaft is located in a central cavity of the non-magnetic outer tube, the inner magnet and the copper wire coil are arranged on the central shaft, the magnet cladding is arranged outside the copper wire coil, the magnet cladding is fixed on the inner wall of the non-magnetic outer tube, the copper wire coil is led out of an anode lead and a cathode lead and then connected with the rectifying circuit, the guide vanes and the inner magnetic rotary impeller are mounted on the outer wall of the non-magnetic outer tube, and the inner magnetic rotary impeller and the inner magnet are located at the same height.
The positive pole of the rectifying circuit is connected with a positioning wet positive pole connector 13 through a circuit plug 12, and the negative pole of the rectifying circuit is connected with a positioning wet negative pole connector 14.
The positioning joint is provided with an axial channel, and the axial direction of the axial channel corresponds to the guide impeller and the inner magnetic rotating impeller.
The upper end of the hollow positioning short section 101 is connected with an oil pipe, the lower end of the hollow positioning short section is connected with the oil pipe, a fishing type generator set 102 is arranged in the hollow positioning short section, a lower end positioning connector 103 is connected with the generator set in a sealing threaded mode, a positive connector and a negative connector are arranged outside the positioning connector, and the positioning connector is in butt joint with a positive connector 104 and a negative connector 105 in the hollow positioning short section after being limited, so that conductive connection is achieved.
Hollow location nipple joint is inside to be hollow through-hole, and internal diameter department has the reducing step, can carry out the butt joint location with throwing the formula of salvaging generator, and the location back generating set forms annular water space with location nipple joint internal diameter outward, provides hydrodynamic force passageway for generating set work, and the locating joint who flows through under the generating set after the turbine passes through in the water hole from the generating set. The generator itself independently can be dismantled, can install in the cavity according to different generated power's demand, a plurality of generators of establishing ties. When the generator set is in butt joint with the positioning short section, the anode of the generator set is connected with the anode of the positioning short section, and wet joint sealing connection modes are adopted, so that short circuit is prevented in a water environment.
There is fishing head 1 generator set upper end, butt joint when conveniently going into the instrument and salvaging, fishing head sub-unit connection multistage turbine drive electromagnetic induction part and rectification voltage stabilizing circuit, water conservancy diversion impeller 2 sets up multistage, water conservancy diversion impeller 2 pastes at all levels at 11 outsides of nonmagnetic outer tube at all levels, interior magnetism rotary impeller 3 sets up multistage, nonmagnetic outer tube 11 sets up multistage, interior magnetism rotary impeller 3 empty cover at all levels does not have the outside of nonmagnetic outer tube 11, the inside magnet of inlaying of nonmagnetic outer tube at all levels. Each level of copper wire coil 5 is connected with a negative electrode lead 7 and a positive electrode lead 8 in series until the tail end is connected with a rectification circuit 10, a circuit output from the rectification circuit is divided into a negative electrode and a positive electrode, a positive electrode joint is in butt joint with a positive electrode of a positioning wet positive electrode joint 13 of a positioning joint through a circuit plug 12, and the negative electrode is in butt joint with a positioning wet negative electrode joint 14 of the positioning joint automatically. All levels of inner magnets 4 and copper wire coils are adhered to the outside of the central shaft 9, and the number of the levels is consistent with that of the inner magnet rotating impeller. During power generation, incoming water directly impacts the inner magnetic rotating impeller after passing through the guide impeller, the inner magnet of the impeller and the inner magnet of the central shaft are attracted and synchronously rotated to transmit magnetic torque to the central shaft, the central shaft is provided with a copper wire coil to rotate, electromagnetic induction power generation is formed under the action of the magnet embedded in the non-magnetic outer pipe, and current is led into the rectifying circuit through the positive and negative leads.
Connect hollow location nipple joint on the water injection tubular column, inside has central channel to satisfy the requirement of going into under the later stage test instrument, when intelligence measure and regulate in the pit device electric power is not enough, drops into small-size generator from the water injection well head, and throws and drag for formula generating set, relies on self gravity and injected water impact force to descend along the tubular column in, until location short circuit position rather than butt joint, forms annular water passing space between generator and the location nipple joint. When normal water injection, oil pipe comes water direct impact generator impeller, provides the power generation, generating set begins work, convert fluid kinetic energy into the electric energy, charge for energy storage battery in the pit, fluid flows through behind the generating set and flows into central water injection passageway again, after finishing charging, carry fishing tool or backwash well hydraulic power help through the steel wire and drag for the mode, fish out generating set in the pit, tubular column center passageway is reopened, satisfy the demand of going into under later stage test instrument.
The generator set is of an independent structure, can be randomly disassembled, installed and replaced, and can also be used in series, so that the requirements of different generated powers are met. The internal water injection channel is opened after the generator set is fished out, so that the passing of a test instrument can be met, and the normal production test of a water injection well cannot be influenced.
In a word, the underground throwing and fishing power generation device can be used for maintenance once, can also be used repeatedly, and can be fished after being charged every time. The length and the number of stages of the impeller of the generator can be adjusted, the influence of the size limit of a shaft is small, and the power generation requirement under the condition of small flow is met.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, but rather should be construed in all respects as illustrative and not restrictive.
Claims (4)
1. A water injection well throwing-fishing type underground power generation device is characterized by comprising a hollow positioning short section and a throwing-fishing type power generation unit, wherein the throwing-fishing type power generation unit is arranged in an inner cavity of the hollow positioning short section;
the fishing type generator set comprises a power generation unit, a fishing head and a positioning joint, wherein the power generation unit comprises a non-magnetic outer pipe, a central shaft, an inner magnet, a copper wire covered wire, a magnet cladding, a rectifying circuit, a guide impeller and an inner magnetic rotating impeller; the lower end of the fishing head is connected to the upper end of the non-magnetic outer pipe of the power generation unit, the positioning joint is connected to the lower end of the non-magnetic outer pipe of the power generation unit, and the power generation unit is provided with one group or more than two groups which are sequentially connected in series;
the outer wall of the positioning joint is positioned on a positioning step formed in the inner wall of the hollow positioning short section, the positioning joint is provided with a positioning wet positive electrode joint and a positioning wet negative electrode joint, and the positioning wet positive electrode joint and the positioning wet negative electrode joint are respectively and correspondingly connected with a positive electrode and a negative electrode of the throwing-fishing type generator set on one hand and are respectively and correspondingly connected with the short section positive electrode joint and the short section negative electrode joint on the other hand;
the central shaft is positioned in a central cavity of the non-magnetic outer pipe, the central shaft is provided with an inner magnet and a copper wire covered wire, a magnet cladding is arranged outside the copper wire covered wire and fixed on the inner wall of the non-magnetic outer pipe, the copper wire covered wire is led out of a positive lead and a negative lead and then connected with a rectifying circuit, the outer wall of the non-magnetic outer pipe is provided with a guide impeller and an inner magnetic rotating impeller, and the inner magnetic rotating impeller and the inner magnet are positioned at the same height.
2. The water injection well fishing type downhole power generation device according to claim 1, wherein the positive electrode of the rectifying circuit is connected with the positioning wet positive electrode connector through a circuit plug, and the negative electrode of the rectifying circuit is connected with the positioning wet negative electrode connector.
3. The water injection well fishing type downhole power generation device according to claim 2, wherein the positioning joint is provided with an axial channel, and the axial direction of the axial channel corresponds to the guide impeller and the inner magnetic rotating impeller.
4. A method for generating power by using the water injection well throwing and fishing type underground power generation device of claim 1 is characterized in that a hollow positioning short section is connected to a water injection pipe column, a central channel is arranged in the hollow positioning short section to meet the requirement of later-stage test instrument descending, when the underground intelligent measuring and adjusting device is insufficient in power, a throwing and fishing type power generation unit is thrown from a water injection well mouth, and descends along the pipe column by means of self gravity and injected water impact force until the hollow positioning short section is in butt joint with the throwing and fishing type power generation unit, and an annular water passing space is formed between the throwing and fishing type power generation unit and the hollow positioning short section; when normal water injection, oil pipe water coming through the water conservancy diversion impeller back direct impact throw and drag for the interior magnetic rotation impeller of formula generating set, power generation is provided, throw and drag for formula generating set and begin work, convert fluid kinetic energy into the electric energy, charge for energy storage battery in the pit, the fluid flows through and flows into central water injection passageway again behind the throw and drag for formula generating set, after finishing charging, carry fishing tool or backwash well fluid power help and drag for the mode through the steel wire, throw and drag for formula generating set in the pit and fish out, tubular column central channel reopens, satisfy the demand of going into under the later stage test instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810500392.6A CN109681163B (en) | 2018-05-23 | 2018-05-23 | Water injection well throwing and fishing type underground power generation device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810500392.6A CN109681163B (en) | 2018-05-23 | 2018-05-23 | Water injection well throwing and fishing type underground power generation device and method |
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| CN109681163A CN109681163A (en) | 2019-04-26 |
| CN109681163B true CN109681163B (en) | 2021-08-17 |
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| CN116792067B (en) * | 2023-08-28 | 2023-10-24 | 山东大东联石油设备有限公司 | Underground cableless intelligent measurement and control system device and application method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4132269A (en) * | 1978-01-16 | 1979-01-02 | Union Oil Company Of California | Generation of electricity during the injection of a dense fluid into a subterranean formation |
| CN102251908B (en) * | 2011-06-07 | 2013-06-26 | 中国石油天然气股份有限公司 | Underground special hydraulic turbine power generation device for oil field oil-water well |
| CN102773582B (en) * | 2012-08-15 | 2016-06-29 | 哈尔滨工业大学（威海） | Submersible type digital underwater wet welding power supply and application thereof |
| US10072480B2 (en) * | 2013-06-17 | 2018-09-11 | Halliburton Energy Services, Inc. | Downhole power generation system |
| CN104514666B (en) * | 2013-09-27 | 2017-01-25 | 中国石油天然气股份有限公司 | Water injection well underground power generation system and method |
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