CN105626008A - Down-hole hydraulic screw automatic pressure regulating water injection device - Google Patents
Down-hole hydraulic screw automatic pressure regulating water injection device Download PDFInfo
- Publication number
- CN105626008A CN105626008A CN201410643949.3A CN201410643949A CN105626008A CN 105626008 A CN105626008 A CN 105626008A CN 201410643949 A CN201410643949 A CN 201410643949A CN 105626008 A CN105626008 A CN 105626008A
- Authority
- CN
- China
- Prior art keywords
- main shaft
- driving device
- water
- water distribution
- hydraulic screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Rotary Pumps (AREA)
Abstract
The invention discloses a down-hole hydraulic screw automatic pressure regulating water injection device. The down-hole hydraulic screw automatic pressure regulating water injection device comprises an upper drive device, a spindle assembly and a lower drive device. The lower end of the upper drive device is connected with the upper end of the spindle assembly through an upper universal coupling. The upper end of the lower drive device is connected with the lower end of the spindle assembly through a lower universal coupling. A water distribution mechanism is arranged at the upper end of the upper drive device. The water distribution mechanism, the upper drive device, the spindle assembly and the lower drive device which are arranged from top to bottom are all in a communicating state. The water distribution mechanism comprises an inner water distribution pipe and an outer water distribution sleeve, and the inner water distribution pipe is sleeved with the outer water distribution sleeve. A side hole is formed in the inner water distribution pipe and leads to the outside of the outer water distribution sleeve straight. A packer is arranged in the position, located above the side hole, of an inner cavity of the inner water distribution pipe. The spindle assembly mainly comprises a hollow spindle and a thrust bearing. According to the down-hole hydraulic screw automatic pressure regulating water injection device, the requirement for all-layer water injection pressure of a well with a large interlayer pressure difference is met, and surplus pressure energy of a high-permeability layer is transformed into energy which a low-permeability layer needs, so that energy loss is reduced, and rational utilization of the energy is achieved.
Description
Technical field
The present invention relates to separated-zone water infection oil field well boosting water injector, specifically downhole hydraulic screw rod automatic Regulation water filling device.
Background technology
Due to physical difference between layers and water absorbing capacity difference in water injection well in oil fields, when existing water injection technology, the super note of high permeability formation is serious, is controlled only by throttling, and low-permeability layer water injection pressure deficiency shorts phenomenon generally, inject only by supercharging. current oil field pressurized water injection mainly adopts ground pressurized water injection and downhole hydraulic plunger booster water injection technology, the design of ground boosting water injection pump has tended towards stability and ripe, the kind design of pump has formed suitable scale, multiple pump-type puts into formal production in succession, and enter domestic each elephant, the boost demand of domestic each elephant can be met, but ground pressurized water injection increases the chock pressure difference of high permeability formation further, the problem being not solved by high permeability formation restriction loss, cause a large amount of wastes of energy and increasing the weight of of flow process burden, and downhole hydraulic plunger booster technology adopts the Electric control mechanism controls pressurizer such as reversal valve that low-permeability layer carries out merely pressurized water injection, movement parts is many, poor reliability, this technology is at present still in the experimental study stage, it is not widely applied.
Summary of the invention
It is an object of the invention to provide downhole hydraulic screw rod automatic Regulation water filling device, meet each layer water injection pressure requirement of the bigger well of interlayer pressure difference, pressure energy more than needed for high permeability formation is transferred to the energy of low-permeability layer demand, reduces energy loss, it is achieved the rational utilization of energy.
In order to reach above-mentioned purpose, present invention employs following technical scheme, downhole hydraulic screw rod automatic Regulation water filling device, including upper driving device, main shaft assembly, lower driving device, the lower end of described upper driving device is connected by upper Hooks coupling universal coupling with main shaft assembly upper end, the described upper end of lower driving device is connected by lower Hooks coupling universal coupling with the lower end of main shaft assembly, the upper end of described upper driving device arranges hydroseparator structure, and described top-down hydroseparator structure, upper driving device, main shaft assembly, lower driving device are connected state.
Described hydroseparator structure include inside and outside pipe, point water overcoat in point water that is nested, in described point of water, side opening offered by pipe, and side opening leads to outside point water overcoat always, and point water tube cavity being positioned at side opening top position is provided with blanking plug.
In described point of water, pipe and the outer set upper side of point water are all connected with top connection, are cased with overcoat outside described upper driving device, and described outer set upper side is connected with a point water overcoat; Being cased with sleeve outside described main shaft assembly, the upper end of described sleeve connects upper overcoat; Being cased with lower contact outside described lower driving device, box cupling and sleeve connection are passed through in described lower contact upper end.
Described upper driving device includes motor stator and the motor rotor that matches of inside of outside, and motor rotor lower end is connected with upper Hooks coupling universal coupling; Described lower driving device includes pump stator and the pump rotor that matches of inside of outside, and pump rotor upper end connects lower Hooks coupling universal coupling, and lower Hooks coupling universal coupling is connected on the main shaft joint of main shaft assembly lower end.
Described main shaft assembly includes hollow main shaft, thrust bearing, and the outside of described hollow main shaft is cased with thrust bearing.
The outer wall of described hollow main shaft and be positioned at the above-below direction position of thrust bearing and be respectively arranged with alignment bearing, lower centralizer, is positioned at the hollow main shaft outer wall below lower centralizer and is cased with baffle ring.
Compared to prior art, the method have the advantages that
The side opening of oil pipe water pipe in undue water of the present invention enters annular space, by tapping after bridge-type hydroseparator structure, a part of water flows out injection stratum, upper end from bridge-type apopore after flowing up driving screw motor operating, screw motor drives Hooks coupling universal coupling and screw pump to rotate simultaneously, another part flowing water is sucked in screw pump, it is achieved stratum, lower end is injected in supercharging. Realizing water injection well point two-layer water filling, wherein high permeability formation controls without water nozzle throttling, and high permeability formation power surplus is converted into hypotonic section of energy, it is achieved inject after supercharging, is increased without new energy consumption equipment, improves the utilization rate of water injection well energy.
Accompanying drawing explanation
Fig. 1 is downhole hydraulic screw rod automatic Regulation water filling device schematic diagram of the present invention.
In figure, 1 top connection; 2 points of water overcoats; 3 blanking plugs; Pipe in 4 points of water; Overcoat on 5; 6 motor stators; 7 motor rotors; Hooks coupling universal coupling on 8; 9 sleeves; Alignment bearing on 10; 11 thrust bearings; 12 hollow main shafts; 13 times centralizers; 14 baffle rings; 15 main shaft joints; 16 times Hooks coupling universal couplings; 17 box cuplings; 18 pump stators; 19 pump rotors.
Detailed description of the invention
Detailed description for the present invention and technology contents, coordinate accompanying drawing to illustrate as follows, but accompanying drawing only provides reference and purposes of discussion, is not used for the present invention is any limitation as.
With reference to accompanying drawing 1, downhole hydraulic screw rod automatic Regulation water filling device, including upper driving device, main shaft assembly, lower driving device, the lower end of described upper driving device is connected by upper Hooks coupling universal coupling with main shaft assembly upper end, the described upper end of lower driving device is connected by lower Hooks coupling universal coupling with the lower end of main shaft assembly, the upper end of described upper driving device arranges hydroseparator structure, and described top-down hydroseparator structure, upper driving device, main shaft assembly, lower driving device are connected state. Particularly the hollow main shaft of the present embodiment is offered tilting passage respectively at the upper and lower side of cavity and is connected with upper and lower driving device respectively. Described hydroseparator structure include inside and outside pipe 4, point water overcoat 2 in point water that is nested, in described point of water, side opening offered by pipe, and side opening leads to outside point water overcoat always, and point water tube cavity being positioned at side opening top position is provided with blanking plug 3. Divide the upper driving device that water overcoat outer space is communicated in point water below pipe by side opening always.
In described point of water, pipe and the outer set upper side of point water are all connected with top connection 1, are cased with overcoat 5 outside described upper driving device, and described outer set upper side is connected with a point water overcoat; Being cased with sleeve 9 outside described main shaft assembly, the upper end of described sleeve connects upper overcoat; Being cased with lower contact outside described lower driving device, box cupling 17 and sleeve connection are passed through in described lower contact upper end. Described upper driving device includes motor stator 6 and the motor rotor 7 that matches of inside of outside, and motor rotor lower end is connected with upper Hooks coupling universal coupling 8; Described lower driving device includes pump stator 18 and the pump rotor 19 that matches of inside of outside, and pump rotor upper end connects lower Hooks coupling universal coupling 16, and lower Hooks coupling universal coupling is connected on the main shaft joint 15 of main shaft assembly lower end.
Described main shaft assembly includes hollow main shaft 12, thrust bearing 11, and the outside of described hollow main shaft is cased with thrust bearing. The outer wall of described hollow main shaft and be positioned at the above-below direction position of thrust bearing and be respectively arranged with alignment bearing 10, lower centralizer 13, is positioned at the hollow main shaft outer wall below lower centralizer and is cased with baffle ring 14.
It is connected with pipe 4 in point water in top connection 1, it is connected with a point water overcoat 2 outward, more than blanking plug 3 is arranged in point water pipe 4 interior step face, upper overcoat 5 is connected with a point water overcoat 2, motor stator 6 is connected with pipe in water knockout drum 4, motor rotor 7 is installed in sub-motor stator 6, upper Hooks coupling universal coupling 8 is connected with motor rotor 7, it is connected with hollow main shaft 12 down, sleeve 9 is connected with upper overcoat 5, upper alignment bearing 10, thrust bearing 11, lower alignment bearing 13 is enclosed within hollow main shaft 12, it is arranged on sleeve 9 internal, baffle ring 14 is connected with sleeve 9, main shaft joint 15 is connected with hollow main shaft 12, down with lower Hooks coupling universal coupling 16, lower Hooks coupling universal coupling 16 is connected with pump rotor 19, sleeve is connected with box cupling 17 for 9 times, box cupling 17 is connected with pump stator 18.
Work process: go into the well, down-hole screw drive boosting water injection pump is connected with oil pipe up and down.
Water filling, oil pipe water tube side hole in undue water enters annular space, by tapping after bridge-type hydroseparator structure, a part of water flows out injection stratum, upper end from bridge-type apopore after flowing up driving screw motor operating, screw motor drives lower end Hooks coupling universal coupling and screw pump to rotate, another part flowing water is sucked in screw pump, it is achieved stratum, lower end is injected in supercharging.
Test, under the gauge that becomes a mandarin measure full well water injection rate at device, then pull blanking plug out, under enter stratified flow rate test instrument and be sealed in blanking plug position, measure upper strata water injection rate, obtain lower floor's water injection rate by calculating of successively decreasing.
Allotment, pulls blanking plug out, under enter band water nozzle blocking fuse, control upper strata apopore flow.
Downhole hydraulic screw rod automatic Regulation water filling device mainly applies water injection well layering pressure regulation water filling, suitable in the dispensing well that interlayer water injection pressure differs greatly, to high permeability formation blood pressure lowering water filling, low-permeability layer pressurized water injection, meet each layer water distribution requirement, the injected water volume of each layer can be regulated simultaneously, it is achieved the rationalization conversion of interlayer energy, reach the target saved energy and reduce the cost, in interlayer pressure difference bigger dispensing well, there is very wide application prospect.
The foregoing is only presently preferred embodiments of the present invention, be not used to limit the scope of the claims of the present invention, other use the equivalent of patent spirit of the present invention to change, and all should all belong to the scope of the claims of the present invention.
Claims (6)
1. downhole hydraulic screw rod automatic Regulation water filling device, it is characterized in that, including upper driving device, main shaft assembly, lower driving device, the lower end of described upper driving device is connected by upper Hooks coupling universal coupling with main shaft assembly upper end, the described upper end of lower driving device is connected by lower Hooks coupling universal coupling with the lower end of main shaft assembly, the upper end of described upper driving device arranges hydroseparator structure, and described top-down hydroseparator structure, upper driving device, main shaft assembly, lower driving device are connected state.
2. downhole hydraulic screw rod automatic Regulation water filling device according to claim 1, it is characterized in that, described hydroseparator structure include inside and outside pipe, point water overcoat in point water that is nested, in described point of water, side opening offered by pipe, and side opening leads to outside point water overcoat always, point water tube cavity being positioned at side opening top position is provided with blanking plug.
3. downhole hydraulic screw rod automatic Regulation water filling device according to claim 2, it is characterised in that in described point of water, pipe and the outer set upper side of point water are all connected with top connection, are cased with overcoat outside described upper driving device, and described outer set upper side is connected with a point water overcoat; Being cased with sleeve outside described main shaft assembly, the upper end of described sleeve connects upper overcoat; Being cased with lower contact outside described lower driving device, box cupling and sleeve connection are passed through in described lower contact upper end.
4. downhole hydraulic screw rod automatic Regulation water filling device according to claim 1, it is characterised in that described upper driving device includes motor stator and the motor rotor that matches of inside of outside, and motor rotor lower end is connected with upper Hooks coupling universal coupling; Described lower driving device includes pump stator and the pump rotor that matches of inside of outside, and pump rotor upper end connects lower Hooks coupling universal coupling, and lower Hooks coupling universal coupling is connected on the main shaft joint of main shaft assembly lower end.
5. downhole hydraulic screw rod automatic Regulation water filling device according to claim 1, it is characterised in that described main shaft assembly includes hollow main shaft, thrust bearing, and the outside of described hollow main shaft is cased with thrust bearing.
6. downhole hydraulic screw rod automatic Regulation water filling device according to claim 5, it is characterized in that, the outer wall of described hollow main shaft and be positioned at the above-below direction position of thrust bearing and be respectively arranged with alignment bearing, lower centralizer, is positioned at the hollow main shaft outer wall below lower centralizer and is cased with baffle ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410643949.3A CN105626008A (en) | 2014-11-10 | 2014-11-10 | Down-hole hydraulic screw automatic pressure regulating water injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410643949.3A CN105626008A (en) | 2014-11-10 | 2014-11-10 | Down-hole hydraulic screw automatic pressure regulating water injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105626008A true CN105626008A (en) | 2016-06-01 |
Family
ID=56041299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410643949.3A Pending CN105626008A (en) | 2014-11-10 | 2014-11-10 | Down-hole hydraulic screw automatic pressure regulating water injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105626008A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194715A (en) * | 2016-09-09 | 2016-12-07 | 中国石油大学(华东) | A kind of seperated layer water injection hydro powered screw pump system |
| CN106246534A (en) * | 2016-09-09 | 2016-12-21 | 中国石油大学(华东) | A kind of seperated layer water injection hydro powered screw pump device |
| CN107420076A (en) * | 2017-07-07 | 2017-12-01 | 中国石油天然气股份有限公司 | Turbine injection increasing device applied to oil field separate injection well |
| CN108049845A (en) * | 2018-02-02 | 2018-05-18 | 西南石油大学 | A kind of non-diagenesis gas hydrates lifting method of sea-bottom shallow and device |
| CN108222905A (en) * | 2017-12-29 | 2018-06-29 | 中国石油大学(华东) | Three layers of double pressure regulation water injection technological strings and regulator optimization method |
| CN108252686A (en) * | 2018-03-13 | 2018-07-06 | 西南石油大学 | A kind of passageway bridge for sea bed gas hydrate fluidisation exploitation |
| CN108374650A (en) * | 2018-04-27 | 2018-08-07 | 西南石油大学 | A kind of turbine lifting device for gas hydrates fluidisation exploitation |
| CN107143295B (en) * | 2017-05-08 | 2023-02-21 | 新疆华隆油田科技股份有限公司 | Self-climbing rotary pulse movable sand washing device |
-
2014
- 2014-11-10 CN CN201410643949.3A patent/CN105626008A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194715A (en) * | 2016-09-09 | 2016-12-07 | 中国石油大学(华东) | A kind of seperated layer water injection hydro powered screw pump system |
| CN106246534A (en) * | 2016-09-09 | 2016-12-21 | 中国石油大学(华东) | A kind of seperated layer water injection hydro powered screw pump device |
| CN106246534B (en) * | 2016-09-09 | 2018-01-12 | 中国石油大学(华东) | A kind of seperated layer water injection hydro powered screw pump device |
| CN107143295B (en) * | 2017-05-08 | 2023-02-21 | 新疆华隆油田科技股份有限公司 | Self-climbing rotary pulse movable sand washing device |
| CN107420076A (en) * | 2017-07-07 | 2017-12-01 | 中国石油天然气股份有限公司 | Turbine injection increasing device applied to oil field separate injection well |
| CN108222905A (en) * | 2017-12-29 | 2018-06-29 | 中国石油大学(华东) | Three layers of double pressure regulation water injection technological strings and regulator optimization method |
| CN108049845A (en) * | 2018-02-02 | 2018-05-18 | 西南石油大学 | A kind of non-diagenesis gas hydrates lifting method of sea-bottom shallow and device |
| CN108252686A (en) * | 2018-03-13 | 2018-07-06 | 西南石油大学 | A kind of passageway bridge for sea bed gas hydrate fluidisation exploitation |
| CN108374650A (en) * | 2018-04-27 | 2018-08-07 | 西南石油大学 | A kind of turbine lifting device for gas hydrates fluidisation exploitation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105626008A (en) | Down-hole hydraulic screw automatic pressure regulating water injection device | |
| CN107387030B (en) | Relay lifting oil production design method utilizing local well gas | |
| CN104989326A (en) | Regulating separate layer production string and separate layer oil production method | |
| CN104612944B (en) | A kind of thick oil pump | |
| CN207161064U (en) | A kind of long-acting layered water filler of binary channels with one heart | |
| CN201874543U (en) | Underground boosting water injection process pipe string | |
| CN203441440U (en) | Thickened oil recovery system for horizontal well | |
| CN102242614A (en) | Coaxial double-layer gas injection well mouth device | |
| CN104153982B (en) | Method and device for acquiring characteristic curve of underground system of rod-pumped well | |
| CN105569622A (en) | Underground layering pressure-regulating water injection process pipe string | |
| CN107842346A (en) | A kind of oil-water well combined type is intubated internal sealed seating nipple | |
| CN205805530U (en) | A kind of layer steam injection regulating separate stratum injection string | |
| CN105089648A (en) | Device and method for nested layered injection of isotopic tracer | |
| CN204175210U (en) | A kind of changeable flow controlled pressure drilling return pressure compensation device | |
| CN203822220U (en) | Controllable water injection propeller for horizontal well testing instrument | |
| CN109424343B (en) | Wellhead and wellhead injection-accompanying method | |
| CN105257263A (en) | Method for combining layered oil production and sand prevention | |
| CN202731855U (en) | Oil pumping unit drive rodless hydraulic oil pumping system | |
| CN206129252U (en) | Store up medicine formula automatic reagent feeding device | |
| CN205078246U (en) | Steamed technology tubular column is arranged in gas injection of salt cave gas storage storehouse | |
| CN107989582A (en) | A kind of medicine-storing automatic medicine adding apparatus | |
| CN209603954U (en) | Horizontal well cable-passing intelligent water distributor and horizontal well underground segmented water injection pipe column | |
| CN206874260U (en) | Single tube post multitube separated-zone water infection oil field device | |
| CN209817975U (en) | Expansion pipe pressurization supercharging device | |
| CN106677749A (en) | Pipe pillar of multi-pipe injecting and washing technique of well controlling and inverse well-flushing integration |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160601 |