CN202260593U - Underground self-charging power supply - Google Patents
Underground self-charging power supply Download PDFInfo
- Publication number
- CN202260593U CN202260593U CN201120346471XU CN201120346471U CN202260593U CN 202260593 U CN202260593 U CN 202260593U CN 201120346471X U CN201120346471X U CN 201120346471XU CN 201120346471 U CN201120346471 U CN 201120346471U CN 202260593 U CN202260593 U CN 202260593U
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- Prior art keywords
- impeller
- charging
- power supply
- self
- hole
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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
- 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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- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The utility model provides an underground self-charging power supply, which comprises a pipe body, an impeller part and a charging part, wherein the pipe body is divided into two parts of spaces including a middle fluid passage and an outer cavity which is positioned at the periphery of the fluid passage; the impeller part is arranged on the inner wall of the fluid passage; the impeller part comprises an impeller-protecting block, an impeller and two flow passages; an impeller cavity is arranged in the impeller-protecting block and is used for placing the impeller; the two flow passages are communicated with the impeller cavity and are used for injecting and discharging a fluid to push the impeller to rotate; the charging part comprises a generator stator, a generator rotor, a charging circuit and a charging battery; the generator rotor is connected with the impeller through a shaft and rotates along with the driving of the impeller; the generator stator and the generator rotor are correspondingly and fixedly arranged; the generator stator and the charging circuit are electrically connected; and the charging circuit and the charging battery are connected. The underground self-charging power supply is used for supplying power for the underground intelligent equipment of an oil-gas well.
Description
Technical field
The utility model relates to technical field of petroleum extraction, particularly a kind of down-hole self-charging power supply that is used to oil gas well downhole intelligent power devices.
Background technology
Along with the modernization and intelligent day by day that oil and gas development is produced, oil gas well downhole intelligent equipment has also obtained fast development.The InCharge of Baker Hughes Inc intelligence completion system has adopted the all-electronin design, uses automatically controlled sliding sleeve in down-hole and the electronic down-hole wet type system that disanchors.Present many research institutions launch research to oil gas well underground wireless communication technology, rely on this technology to realize the transmission of underground monitoring data and control signal.The remote-controlled water injection valve that on water injection well, uses, the size that can pass through cable control Water filling valve is to regulate water injection rate.In addition like oil gas well device for subsurface measuring, smart machine such as intelligent water blocking valve used.These equipment are present or use battery, perhaps with cable power are delivered to the down-hole.The useful life of battery is limited all the time, and the cable transmitting power has increased operating cost and difficulty of construction, thereby the demand of down-hole power is also more and more come into one's own.
Patent 200620123884.0 provides a kind of method that adopts moving up and down of sucker rod to generate electricity.This method is transformed into permanent magnet to the part sucker rod, on the oil pick-up tube of correspondence position, is placed with the coil pipe of electric wire winding, and cutting magnetic line generates electricity when sucker rod moves reciprocatingly.The limitation of this patent is: 1. be only applicable to oil pumping well; 2. the fixed-site of generating equipment can not move, and the position of downhole intelligent equipment in pit shaft is indefinite.If oil well pump is far away excessively apart from downhole intelligent equipment, then need cable to connect, thereby increased task difficulty and produced bigger power consumption, apart from practical application sizable distance is arranged.
The downhole generator of mentioning in the patent 02279110.8 is configured in the outer tube and the ring-shaped cavity between the interior pipe under the ground level; On the outer wall of pipe, stator was embedded in the inwall of outer tube through shell in the rotor of generator was fixed on through key; Interior pipe links to each other with top rod, and the bottom links to each other with drill bit; The output of generator is transported to electronic-controlled installation through the rectifying and voltage-stabilizing device.It can provide the galvanic current source of enough capacity for automatic vertical drilling tool, makes drilling tool become a kind of complete closed loop underground system of vertical probing automatically, and it is that a kind of cost is low, long working life, safe and reliable underground power-supply device.This patent is mainly used in the drilling well, utilizes the rotation of drilling rod to generate electricity, but unsuitable being applied in the production of hydrocarbons well.
Summary of the invention
The main purpose of the utility model is to solve the problem that exists in the prior art, and a kind of down-hole self-charging power supply that is used to oil gas well downhole intelligent power devices is provided.
The purpose of the utility model is achieved through following technical proposals:
Self-charging power supply in down-hole is characterized in that, comprising: body, at least one impeller portion and at least one charging part;
Said body is straight pipe type, and this body is divided into the central fluid passage external cavity two parts space peripheral with being positioned at the fluid passage;
Said impeller portion is arranged on the inwall of said fluid passage; This impeller portion comprises: impeller protection piece, impeller and two runners; Be provided with impeller cavity in this impeller protection piece, be used to place said impeller; Said two runners are connected with impeller cavity from the two ends of impeller protection piece respectively, are used for injecting, discharging fluid, to promote wheel rotation;
Said charging part is arranged in the said external cavity; This charging part comprises: generator unit stator, generator amature, charging circuit and rechargeable battery; Said generator amature and said impeller axle mutually connect, and drive with impeller and rotate; Said generator unit stator is corresponding with generator amature to fixedly install; This generator unit stator is electrically connected with charging circuit; Said charging circuit is connected with rechargeable battery.
Said generator unit stator is alnico magnets.
Said charging circuit charges to rechargeable battery through over commutation, protective circuit.
Said rechargeable battery is provided with output, with thinking the downhole intelligent power devices.
It is right between said impeller and generator amature, to be serially connected with change-speed gearing.
Upper and lower opening place at said body also is provided with joint, in order to be connected with oil pipe.
The beneficial effect of the utility model is:
(1) the tube wall radial design of the impeller portion longshore current body passage of this down-hole self-charging power supply, and each equipment of charging part all is placed in the external cavity 13.Guaranteed that there are enough spaces self-charging power supply inside, down-hole, make be used to measure or the underground work instrument of well workover can be smoothly through down-hole self-charging power supply and arrive the inner optional position of oil pipe;
(2) impeller of this down-hole self-charging power supply only depends on the mobile driving of fluid and does not rely on other power source of down-hole, so self-charging power supply in down-hole can be placed on the optional position on the completion pipeline arbitrarily, not limited by other.
Description of drawings
Accompanying drawing described herein is used to provide the further understanding to the utility model, constitutes the application's a part, does not constitute the qualification to the utility model.In the accompanying drawings:
Fig. 1 is the structural representation of down-hole self-charging power supply;
Fig. 2 is the A-A of an impeller portion schematic cross-section;
Fig. 3 is the application sketch map of down-hole self-charging power supply.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is explained further details below in conjunction with execution mode and accompanying drawing.At this, exemplary embodiment of the utility model and explanation thereof are used to explain the utility model, but not as the qualification to the utility model.
Fig. 1 is the structural representation of down-hole self-charging power supply.As shown in the figure, this down-hole self-charging power supply comprises: body, at least one impeller portion and at least one charging part.
Said body is straight pipe type, and this body is divided into central fluid passage 12 and the external cavity 13 two parts spaces that are positioned at 12 peripheries, fluid passage.
Said impeller portion is arranged on the inwall of said fluid passage 12.Fig. 2 is the A-A of an impeller portion schematic cross-section.As shown in the figure, this impeller portion comprises: impeller protection piece 14, impeller 2 and two runners 11.Be provided with impeller cavity in the impeller protection piece 14, be used to place said impeller 2, and play the effect of protection impeller 2.Said two runners 11 are connected with impeller cavity from the two ends of impeller protection piece 14 respectively, are used for injecting, discharging fluid, rotate to promote impeller 2.
Said charging part is arranged in the said external cavity 13.This charging part comprises: generator unit stator 3, generator amature 4, charging circuit 6 and rechargeable battery 7.Said generator amature 4 and said impeller 2 axle mutually connect, and drive with impeller 2 and rotate.Said generator unit stator 3 and generator amature 4 corresponding fixedly installing.This generator unit stator 3 is alnico magnets.With the generator amature 4 of 2 companies of impeller with wheel rotation, cutting is corresponding with it being fixed on the magnetic line of force that generator unit stator 3 sent on the external cavity 13 and producing electromotive force.This generator unit stator 3 is connected with charging circuit 6 through connecting lead 5, with the power delivery that is produced to charging circuit 6.Said charging circuit 6 is connected with rechargeable battery 7, through serial circuit such as over commutation, protections rechargeable battery 7 is charged.This rechargeable battery 7 is connected with downhole intelligent equipment through output lead 9, is its power supply.
In use, the user can become the part of down-hole pipe-line with the down-hole self-charging power series of said structure in the pipeline of down-hole.When carrying out oil-gas mining or water filling operation; Pipeline inner fluid (like gases at high pressure, crude oil, injection water etc.) this down-hole self-charging power supply of flowing through; Fluid promotes impeller 2 through said runner 11 and rotates; And then drive the generator amature 4 final electrical power storage that produce in rechargeable battery 7, use for downhole intelligent equipment.The benefit of this design is: the tube wall radial design of (1) impeller portion longshore current body passage, and each equipment of charging part all is placed in the external cavity 13.Guaranteed that there are enough spaces self-charging power supply inside, down-hole, make be used to measure or the underground work instrument of well workover can be smoothly through down-hole self-charging power supply and arrive the inner optional position of oil pipe; (2) do not rely on other power source of down-hole owing to impeller only depends on the mobile driving of fluid, so self-charging power supply in down-hole can be placed on the optional position on the completion pipeline arbitrarily, not limited by other.
If the rotating speed of impeller 2 is low excessively, then the relative rotation speed between generator amature 4 and the generator unit stator 3 is slower, can't give full play to the electricity generation efficiency of generator.To this problem, as shown in Figure 1, we can also be serially connected with change-speed gearing to 8 between impeller 2 and generator amature 4.To 8, can improve the rotating speed of generator amature 4 through this change-speed gearing, guarantee the relative rotation speed between generator amature 4 and the generator unit stator 3.
In addition, also be provided with joint 1,10, be connected with oil pipe with convenient at the upper and lower opening place of said body.
As previously mentioned, in a down-hole self-charging power supply, can be provided with many to impeller portion and charging part, to improve the generating efficiency of this down-hole self-charging power supply.Moreover, as shown in Figure 3, can also on the completion pipeline, be connected into a plurality of down-hole self-charging power supplys when being necessary, to satisfy the electricity consumption needs of a plurality of downhole intelligent equipment.
In sum, the utility model provides a kind of down-hole self-charging power supply that is used to oil gas well downhole intelligent power devices.The tube wall radial design of the impeller portion longshore current body passage of this down-hole self-charging power supply; Guaranteed that there are enough spaces self-charging power supply inside, down-hole, make be used to measure or the underground work instrument of well workover can be smoothly through down-hole self-charging power supply and arrive the inner optional position of oil pipe; And impeller only depends on the mobile driving of fluid and does not rely on other power source of down-hole, can be placed on the optional position on the completion pipeline.Any not creative transformation is done on this basis based on the above-mentioned embodiment of lifting in this area, all should be regarded as within the protection range of the utility model.
Claims (6)
1. self-charging power supply in down-hole is characterized in that, comprising: body, at least one impeller portion and at least one charging part;
Said body is straight pipe type, and this body is divided into the central fluid passage external cavity two parts space peripheral with being positioned at the fluid passage;
Said impeller portion is arranged on the inwall of said fluid passage; This impeller portion comprises: impeller protection piece, impeller and two runners; Be provided with impeller cavity in this impeller protection piece, be used to place said impeller; Said two runners are connected with impeller cavity from the two ends of impeller protection piece respectively, are used for injecting, discharging fluid, to promote wheel rotation;
Said charging part is arranged in the said external cavity; This charging part comprises: generator unit stator, generator amature, charging circuit and rechargeable battery; Said generator amature and said impeller axle mutually connect, and drive with impeller and rotate; Said generator unit stator is corresponding with generator amature to fixedly install; This generator unit stator is electrically connected with charging circuit; Said charging circuit is connected with rechargeable battery.
2. self-charging power supply in down-hole as claimed in claim 1 is characterized in that: said generator unit stator is alnico magnets.
3. self-charging power supply in down-hole as claimed in claim 1, it is characterized in that: said charging circuit charges to rechargeable battery through over commutation, protective circuit.
4. self-charging power supply in down-hole as claimed in claim 1, it is characterized in that: said rechargeable battery is provided with output, with thinking the downhole intelligent power devices.
5. self-charging power supply in down-hole as claimed in claim 1 is characterized in that: it is right between said impeller and generator amature, to be serially connected with change-speed gearing.
6. self-charging power supply in down-hole as claimed in claim 1 is characterized in that: the upper and lower opening place at said body also is provided with joint, in order to be connected with oil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120346471XU CN202260593U (en) | 2011-09-15 | 2011-09-15 | Underground self-charging power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120346471XU CN202260593U (en) | 2011-09-15 | 2011-09-15 | Underground self-charging power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202260593U true CN202260593U (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120346471XU Expired - Fee Related CN202260593U (en) | 2011-09-15 | 2011-09-15 | Underground self-charging power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202260593U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306947A (en) * | 2011-09-15 | 2012-01-04 | 中国石油天然气股份有限公司 | Underground self-charging power supply |
| CN108386306A (en) * | 2018-04-17 | 2018-08-10 | 湖南工业大学 | A kind of double-skin duct formula power generator |
-
2011
- 2011-09-15 CN CN201120346471XU patent/CN202260593U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306947A (en) * | 2011-09-15 | 2012-01-04 | 中国石油天然气股份有限公司 | Underground self-charging power supply |
| CN108386306A (en) * | 2018-04-17 | 2018-08-10 | 湖南工业大学 | A kind of double-skin duct formula power generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20200915 |