CN205013319U - Invert water injection electrical submersible pump pumping system - Google Patents
Invert water injection electrical submersible pump pumping system Download PDFInfo
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- CN205013319U CN205013319U CN201520636769.2U CN201520636769U CN205013319U CN 205013319 U CN205013319 U CN 205013319U CN 201520636769 U CN201520636769 U CN 201520636769U CN 205013319 U CN205013319 U CN 205013319U
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Abstract
The utility creatively provides an invert water injection electrical submersible pump pumping system, including the sleeve pipe and overlap the intraductal foraminiferous pipe that connects gradually, outlet connection from top to bottom, go up the protector, motor, thrust section, protector and place upside down the oil pump of diving down, the outlet connection with foraminiferous union coupling, cable on the motor passes wellhead assembly and external power source switch -on at the sleeve pipe top, it inverts the oil pump sunction inlet of diving to be equipped with on the protector down, be equipped with the check valve on the 2nd oil pipe of the latent oil pump exit end of inversion, and the 2nd oil pipe passes the location divider that is used for isolated outside liquid to overlap the intraduct from the casing shoe entering. This system pours into the surface water to the stratum once more into, increases formation pressure, is favorable to emersion crude oil to the shared space of water injection equipment installation has effectively been reduced.
Description
Technical field
The invention belongs to oil exploration equipment technical field, especially relates to a kind of inversion injecting submersible pump system.
Background technique
After exploitation is dropped in oil field, along with the growth of recovery time, the energy of oil reservoir own will constantly be consumed, cause formation pressure constantly to decline, underground crude oil is degassed in a large number, and viscosity increases, oil well output greatly reduces, and even stop-spraying can stop production, causes underground to remain a large amount of dead oil and can not adopt out.In order to the underground of causing after making up crude oil extraction is in debt, keep or improve formation pressure, realizing oil field stable high yield, and obtaining higher recovery rate, water filling must be carried out to oil field.Existing water-filling method technical sophistication, water injection well quantity demand is large, and water injection rate is large, and be difficult to operation, construction cost is high.
Innovation and creation content
In view of this, the invention is intended to propose a kind of inversion injecting submersible pump system, and achieve pumping unit to water filling in oil well, water injection equipment floor space is little simultaneously, and easily, cost is low in construction.
For achieving the above object, the technological scheme of the invention is achieved in that
A kind of inversion injecting submersible pump system, comprises in sleeve pipe and sleeve pipe the pipe with holes, outlet connection, upper protector, motor, thrust section, lower protector and the inversion oil-immersed pump that connect successively from top to bottom; Described outlet connection is connected with described pipe with holes; Cable on described motor is connected through the wellhead assembly and external power supply being in cannula tip; Described lower protector is provided with is inverted oil-immersed pump suction port; Second oil pipe of described inversion oil-immersed pump outlet end is provided with one-way valve, and this second oil pipe is through the tab-delimited device entering inside pipe casing for isolated outside liquid from casing shoe.
Further, described upper protector comprise from top to bottom set gradually upper protector head, upper protector first housing, on protect central siphon seat, upper protector second housing and upper bed-plate; Be provided with in described upper protector head communicate with upper protector capsule chamber input end protect central siphon; Described protect central siphon be arranged on described on protect on central siphon seat, its upper end is arranged on bottom protector head; The described central siphon that protects is provided with the inlet opening communicated with upper protector capsule chamber; Protect on described central siphon seat be provided with connect with upper protector setting chamber protect central siphon block hole; Described upper protector head is provided with and protects the cavity and the outside upper protector capsule exocoel exhaust port communicated that upper protector capsule inner chamber exhaust port that central siphon cavity communicates and upper protector capsule chamber and described inside pipe casing formed; Described upper bed-plate is provided with lower bottom base through hole, vertically on this lower bottom base through hole is provided with sedimentation pipe.
Further, described upper bed-plate lower end is provided with the flange and outer stopper that are connected with motor.
Further, described inlet opening is arranged on and protects the position that central siphon is in protector capsule chamber top, and described inlet opening arranges several along the radial direction of protecting central siphon.
Further, described lower protector comprise the lower protector head from top to bottom set gradually, lower protector housing, under protect central siphon, under protect central siphon seat and lower protector base; Protect central siphon lower end under described to be arranged on down and to protect on central siphon seat, upper end is arranged on lower protector head; Protect under described between central siphon seat and lower protector base and be provided with lower protector thrust bearing section; Bottom described lower protector thrust bearing section, described lower protector base is installed; Described lower protector head is provided with the axial hole connected with lower protector setting chamber, and is provided with the lower lumen exhaust port that the external world communicates.
Further, described lower protector head upper end is provided with the screw connecting described thrust section.
Further, the spline housing that described thrust section comprises thrust bearing axle, thrust bearing shell, the upper and lower two ends of thrust bearing axle are installed respectively, secondary with coaxial mounted thrust bearing on thrust bearing axle; The locking ring of fixing thrust bearing pair is provided with in described thrust bearing shell.
Relative to prior art, the invention has following advantage:
1) surface water re-injects in stratum by native system, increases strata pressure, is conducive to emersion crude oil, and effectively reduces the space shared by water injection equipment installation.
2) upper protector is effectively motor seal, ensures electrical machine insulation, and the pressure of equilibrium oil casing annular space and motor internal, makes it reach balance, and be motor make-up oil simultaneously, ensures that electric pump runs well.
3) under, protector is to electric submersible pump transmitting torque, and the thrust bearing of its inside is used for carrying the end thrust of electric submersible pump, ensures that electric pump can normally to stratum extruding water filling.Two cover high-mechanic thrust bearings are set in native system, improve axial bearing capacity.
Accompanying drawing explanation
The accompanying drawing of the part of formation the invention is used to provide the further understanding to the invention, and the schematic description and description of the invention, for explaining the invention, does not form the improper restriction to the invention.In the accompanying drawings:
Fig. 1 is the structural representation of the invention;
Fig. 2 is the structural representation of upper protector in the invention;
Fig. 3 is the structural representation of thrust bearing section in the invention;
Fig. 4 is the structural representation of lower protector in the invention.
In figure: 1-wellhead assembly; 2-first oil pipe; 3-pipe with holes; 4-outlet connection; 5-cable; The upper protector of 6-; 7-motor; 8-thrust section; Protector under 9-; 10-is inverted oil-immersed pump suction port; 11-is inverted oil-immersed pump; 12-one-way valve; The tab-delimited device of 13-, 14-sleeve pipe, 15-second oil pipe; The upper protector head of 16-; 17-upper protector first housing; 18-protects central siphon seat; 19-upper protector second housing; 20-upper bed-plate; The upper protector capsule chamber of 21-; 22-protects central siphon; 23-expansion pipe; 24-inlet opening; The upper protector setting chamber of 25-; 26-protects central siphon block hole; 27-upper protector capsule inner chamber exhaust port; 28-upper protector capsule exocoel exhaust port; 29-lower bottom base through hole; 30-sedimentation pipe; Protector head under 31-; Protector housing under 32-; Central siphon is protected under 33-; Central siphon seat is protected under 34-; Protector base under 35-; Protector thrust bearing section under 36-; Protector setting chamber under 37-; 38-axial hole; 39-lower lumen exhaust port; 40-thrust bearing axle; 41-thrust bearing shell; 42-spline housing; 43-thrust bearing is secondary; 44-locking ring; 45-taphole; 46-lower discharge hole; Protector exocoel exhaust port under 47-; Protector expansion pipe under 48-.
Embodiment
It should be noted that, when not conflicting, the embodiment in the invention and the feature in embodiment can combine mutually.
Below with reference to the accompanying drawings and describe the invention in detail in conjunction with the embodiments.
A kind of inversion injecting submersible pump system, as shown in Figure 1, comprises the pipe with holes 3, outlet connection 4, upper protector 6, motor 7, thrust section 8, lower protector 9 and the inversion oil-immersed pump 11 that connect successively in sleeve pipe 14 and sleeve pipe 14 from top to bottom; Described outlet connection 4 is connected with described pipe 3 with holes; Cable 5 on described motor 7 is connected with external power supply through the wellhead assembly 1 being in sleeve pipe 14 top; Described lower protector 9 is provided with is inverted oil-immersed pump suction port 10; Second oil pipe 15 of described inversion oil-immersed pump outlet end is provided with one-way valve 12, and this second oil pipe 15 is through the tab-delimited device 13 entering inside pipe casing for isolated outside liquid from casing shoe.
It should be noted that, pipe upper end with holes connects the first oil pipe 2 of atresia, and this oil pipe 2 connects with external water source through wellhead assembly.Wellhead assembly comprises common oil pipe fixing device and the fitting seat etc. of sleeve pipe, repeats no more here.
Tab-delimited device 13 can be mounted in the demarcation strip bottom sleeve pipe 14, and this plate is rounded, its outer rim and internal surface of sleeve pipe encapsulation process, and this demarcation strip is provided with the through hole passed for the second oil pipe 15, encapsulation process between this through hole and the second oil pipe 15.Install an one-way valve 12 additional in inversion oil-immersed pump 11 outlet port, guarantee that it is opened when electric pump works, close when electric pump quits work.This one-way valve 12 and the second oil pipe 15 be inverted on water injection pump are preferably in tab-delimited device 13 lower end.Like this, even if strata pressure is inverted oil-immersed pump outlet pressure higher than when not working, when this electric submersible pumping system does not work, stratum water also can not flow backwards.
It is to be noted; be inverted the transmission of water injection pump electric power; be via after ground power supply system and control system through power cable; this cable will be inverted in water injection pump system until the upper end position of top protector through the wellhead assembly of oil well; down-hole oil-submersible motor is transferred to again after changing-over jump lead; thus drive down-hole oil-submersible motor work, to be supplied to inverted oil-immersed pump power.
As shown in Figure 2, described upper protector 6 comprise from top to bottom set gradually upper protector head 16, upper protector first housing 17, on protect central siphon seat 18, upper protector second housing 19 and upper bed-plate 20; Be provided with in described upper protector head 16 communicate with upper protector capsule chamber 21 input end protect central siphon 22; Described protect central siphon 22 be arranged on described on protect on central siphon seat 18, its upper end is arranged on bottom protector head 16; The described central siphon 22 that protects is provided with the inlet opening 24 communicated with upper protector capsule chamber 21; Protect on described central siphon seat 18 be provided with connect with upper protector setting chamber 25 protect central siphon block hole 26; Described upper protector head 16 is provided with and protects the cavity and the outside upper protector capsule exocoel exhaust port 28 communicated that upper protector capsule inner chamber exhaust port 27 that central siphon 22 cavity communicates and upper protector capsule chamber 21 and described sleeve pipe 14 inside formed; Described upper bed-plate 20 is provided with lower bottom base through hole 29, vertically on this lower bottom base through hole 29 is provided with sedimentation pipe 30.
The center tube protecting central siphon seat 18 lower end is connected with upper protector setting chamber input end; Upper protector setting chamber output terminal is connected with upper bed-plate upper end.Short tube is straight down installed in the exocoel exhaust port side be in protector capsule chamber, top.
It should be noted that, protect central siphon seat 18 on described and be provided with the through hole connected with upper protector setting chamber 25 and comprise and to protect on central siphon seat near the center hole of protector capsule chamber side and to protect on central siphon seat near the vertical hole of upper protector setting chamber side and be connected the crosslinked hole in center hole and vertical hole.In addition, be provided with expansion pipe 23 in lower end, vertical hole, this expansion pipe 23 upper end connects hole of hanging down, and what lower end was vertical stretches into protector setting chamber.
After inversion injecting submersible pump is gone into the well; first well liquid enter the exocoel of the upper protector capsule chamber 21 formed between upper protector capsule cylindrical and upper protector first housing 17 inner circle by the spiracle of upper protector head; along with entering of well liquid, also replaced away dynamo oil in upper protector capsule chamber exocoel (this dynamo oil is unit oiling when going into the well) simultaneously.The capsule gone up like this in protector capsule chamber 21 just defines resilient separation layer between dynamo oil and well liquid.When being inverted the work of injecting submersible pump unit, inner dynamo oil heats up to expand and rises, and enters in working fluid, enters in oil well casing thereupon by spiracle, so just can keep the balance of external and internal pressure by the one-way valve of upper protector head.When being inverted injecting submersible pump and quitting work, inner dynamo oil cooling is shunk, and now one-way valve is closed automatically, causes the capsule in protector capsule chamber to start contraction deformation, keeps the balance of external and internal pressure with this.Each start or stop of unit, all will repeat above-mentioned action.Due to the regulating action of capsule, meeting the besoin de respirer that expand with heat and contract with cold of motor when running and shut down, due to the buffer action of capsule, well liquid would not be caused to enter capsule inner chamber, more not entering next stage protective system bottom setting chamber.
It should be noted that, the spiracle of upper protector head when oiling be on protector capsule exocoel exhaust port 28.
Due to the proportion difference of dynamo oil and well liquid; even if the capsule aged deterioration of upper protector capsule chamber 21, well liquid enters upper protector capsule chamber inner chamber by breakage spot, is entered protect in central siphon by the radial direction through hole protected on central siphon; path is walked downwards thus, by protect central siphon seat center hole and enter crosslinked hole.Enter vertical hole downwards by crosslinked hole, and then enter bottom setting chamber along expansion pipe.At this moment heavy well liquid can only be in the lower port of expansion pipe, and following annular space namely goes up the below of protector capsule chamber, and the little dynamo oil of proportion has floated over above well liquid.The each Kong Junyi shutoff in top due to upper protector setting chamber; dynamo oil is hopeless from top; the radial direction through hole that the well liquid sinking to bottom so also just can not be opened by being arranged on center tube top enters the motor of bottom; again protect turbidity test and the insulating property of motor internal dynamo oil; provide the path that dynamo oil expands with heat and contract with cold simultaneously; not only ensure that sealing but also motor external and internal pressure can be made to reach balance; because this protector is the top being arranged on motor, also just ensure that the supplementary supply of dynamo oil.
Upper protector first housing 17 is connected to upper protector second housing 19 and protects central siphon seat about 18 two ends, the shell of protector in formation.Upper protector head there are screw that protector head top is connected with outlet connection flange and upper protector capsule inner chamber exhaust port, the vertical hole intersected vertically with capsule inner chamber exhaust port, bottom, hole of hanging down be connected with one-way valve and the upper protector capsule exocoel exhaust port as spiracle; it should be noted that; upper protector capsule exocoel exhaust port go into the well work time must open mouth, mustn't block.
Wherein, described inlet opening 24 is arranged on and protects the position that central siphon 22 is in protector capsule chamber 21 top, and described inlet opening 24 arranges several along the radial direction of protecting central siphon.Like this, while liquid can free in and out capsule chamber, the cavity protecting central siphon above capsule chamber can also be vented normally with outside.Realized and outside motor pressure balance effect by the capsule chamber of inside and sedimentation chamber, dissolve the harm that thermal expansion brings to motor simultaneously.
Concrete, the heat radiation of being inverted water injection pump system be utilize to be inverted in annular space that oil-immersed pump 11 outer wall and oil well casing 14 internal diameter formed perfusion water flow by carry heat from.Namely make the flowing of the water of annular space formation certain flow rate due to pump work when electric pump works, swiftly flowing water by the carry heat on motor 7 surface from, this forms certain temperature difference by making motor 7 surface and inside, motor 7 internal heat by under the effect of temperature difference by heat transfer and radiation direction external cooling, this balances with regard to formation temperature.As long as flow velocity this balance point temperature enough large, by the temperature of the insulation class lower than oil-submersible motor, guarantees that motor 7 normally works.
Oil-submersible motor and thrust bearing, when high speed operation, can cause inner dynamo oil carbonization loss, and in upper protector capsule chamber 21, upper protector setting chamber 25 and lower protector setting chamber 37, oil can supplement under gravity automatically.
Wherein, described upper bed-plate 20 lower end is provided with the flange and outer stopper that are connected with motor 7.Like this, adopt flange, high strength axle and high strength spline housing to realize oil-submersible motor being produced moment of torsion and pass to inverted oil-immersed pump.
As shown in Figure 4, described lower protector 9 comprise from top to bottom set gradually lower protector head 31, lower protector housing 32, under protect central siphon 33, under protect central siphon seat 34 and lower protector base 35; Protect central siphon 33 lower end under described to be arranged on down and to protect on central siphon seat 34, upper end is arranged on lower protector head 31; Protect under described between central siphon seat 34 and lower protector base 35 and be provided with lower protector thrust bearing section 36; Bottom described lower protector thrust bearing section 36, described lower protector base 35 is installed; Described lower protector head 31 is provided with the axial hole 38 connected with lower protector setting chamber 37, and is provided with the lower lumen exhaust port 39 that the external world communicates.
It should be noted that, usual electric submersible pump protector vertically upwards to use, and only has one to be placed on motor and the protector be under deaerator, and use of not turn-overing.In native system, lower protector is to electric submersible pump transmitting torque, and the thrust bearing of its inside is used for carrying the end thrust of electric submersible pump, ensures that electric pump can normally to stratum extruding water filling.Two cover high-mechanic thrust bearings are set in native system, improve axial bearing capacity.
The protector head be connected with motor 7 is arranged at thrust section 8 top, has bearing shell to have exhaust port and spiracle in head.The bottom of head is that high-mechanic thrust shaft is undertaken, and the bottom that bearing is paid is protector base, has bearing shell, base has fuel feeding valve, has oil-through hole in the middle of base.Thrust bearing shell is loaded on the housing of outer ring equipment.In the middle of bearing shell, axle is housed, spline housing is housed on the top of axle and motor shaft is connected, and spline housing is housed equally in the bottom of axle and protector axle is connected.
As shown in Figure 3, the spline housing 42 that described thrust section 8 comprises thrust bearing axle 40, thrust bearing shell 41, thrust bearing axle about 40 two ends are installed respectively, with coaxial mounted thrust bearing pair 43 on thrust bearing axle 40; The locking ring 44 of fixing thrust bearing pair 43 is provided with in described thrust bearing shell 41.
The flange being arranged on thrust section 8 upper end on top is connected by screw with the lower flange of top motor; spline housing 42 in thrust section 8 is connected with the lower end splined shaft of top motor; the lower end splined shaft of thrust bearing axle 40 is connected with the upper end of spline housing 42; spline housing 42 is built with the adjustment pad configured by Actual measurement, and its spline housing lower end is connected with lower protector axle upper end splined shaft.Lower protector axle lower end splined shaft is connected with the upper end splined shaft of pump shaft by the spline housing on pump again.Several so different axle has been linked to be entirety by spline housing, also just can be used to the moment of torsion transmitting motor, makes pump rotary work, to stratum extruding water filling.The reaction force axially produced, bears by each thrust bearing section.
It is pointed out that its blade guiding wheel also produces upward pressure while step by step the water of low pressure being pressurized to high pressure water, and this pressure will pass to thrust section 8 by tight phase connecting shaft when inverted oil-immersed pump work.In order to ensure the reliability of system, in system, add primary seal section, in order to improve the axial bearing capacity of system.In addition; the static seal of oil-submersible motor adopts the O RunddichtringO of rubber and seam to realize, and axial dynamic seal (packing) adopts twice mechanical seal to realize, and this twice mechanical seal is arranged in the protector of bottom; this ensures that there the sealing of oil-submersible motor, oil-submersible motor is normally worked.
Bottom protector head 31 is connected with the base of the thrust section 8 on top; lower protector head 31 is built with mechanical seal; there is bearing shell centre; and lower protector head is also provided with lower protector inner chamber exhaust port 39, lower protector exocoel exhaust port 47 and axial hole 38; be equipped with in axial hole 38 lower end and act on identical lower protector expansion pipe 48 in upper protector, the bottom of lower protector head is designed to lower protector setting chamber.This setting chamber can be used to the rubbish that collection upper system (motor and thrust section) produces.Setting chamber bottom is that lower protector protects central siphon seat, and lower protector protects central siphon seat and is provided with lower discharge hole 46 and taphole 45.Protect the thrust bearing pair 43 that central siphon seat bottom is high-mechanic, sealing seat is equipped with in secondary 43 bottoms of thrust bearing, and in the middle of the lower end inner circle of sealing seat, mechanical seal is housed, this mechanical seal can anti-locking system leakage of oil.
Fuel feeding valve, taphole, exhaust port and inclined hole is provided with in the middle part of the cylindrical of sealing seat, meanwhile, preferably draw the mark of φ 20 × dark 2 at the counterbore cylindrical of exhaust port, when unit goes into the well work, this hole must be opened, mustn't block, be to ensure that mechanical seal position is without gas.Sealing seat inner circle is equipped with bearing shell, and sealing seat top ring connected in star is for receiving rubbish use, the projection being in a groove equipped with sand-throwing ring equally.The short tube of opening upwards is equipped with in the hole that fuel feeding valve intersects, and these measures are exactly rubbish and sand grains harm mechanical seal in order to prevent unit running generation.
Lower protector base 31 is installed in the bottom of sealing seat, and lower protector base 35 has 6 axial holes at the cylindrical of middle bearing shell, is in order to mechanical seal position feed liquor.The foot of lower protector base is the flange and outer stopper that connect with pump.
Wherein, described lower protector head 31 upper end is provided with the screw connecting described thrust section 8.
The working procedure of this inversion water injection pump system is: first needed on ground the water of perfusion successively by surface duct, wellhead assembly 1, first oil pipe 2, pipe with holes 3, and flow into by the sieve aperture of pipe 3 with holes the annular space be inverted between water injection pump outer wall and oil well casing 14 inwall.Water flows through the tab-delimited device 13 of protector 6, motor 7, thrust section 8, lower protector 9, inversion oil-immersed pump suction port 10, inversion oil-immersed pump 11, finally arrival oil well separation downwards successively in this annular space.Due to the obstruction of tab-delimited device 13, water can not continue flowing downwards, and the annular space storage formed between the outer wall being inverted water injection pump and sleeve pipe 14 inwall.
When being inverted water injection pump work, suck in inverted oil-immersed pump by being inverted oil-immersed pump suction port 10 by the water that above-mentioned annular space is stored, current are through being inverted oil-immersed pump blade guiding wheel at different levels.Water pressurizes gradually through blade guiding wheel, and formed in inversion oil-immersed pump outlet port and be greater than stratum high-pressure water flow, it backs down the one-way valve being inverted oil-immersed pump outlet end, enters bottom oil well, then enters inside, stratum by the perforated interval bottom oil well.Be arranged on tab-delimited device upper end owing to being inverted oil-immersed pump suction port 10, and be inverted the lower end that oil-immersed pump outlet is arranged on tab-delimited device 13.Therefore, in the process of this enhancing perfusion, due to the effect of tab-delimited device 13, the low-pressure water of being inverted oil-immersed pump suction port place is separated with the high pressure water being inverted oil-immersed pump outlet port, high pressure water can not be flowed back to and be inverted oil-immersed pump suction port 10 place.
The foregoing is only the preferred embodiment of the invention; not in order to limit the invention; within all spirit in the invention and principle, any amendment done, equivalent replacement, improvement etc., within the protection domain that all should be included in the invention.
Claims (7)
1. be inverted an injecting submersible pump system, it is characterized in that: comprise in sleeve pipe and sleeve pipe the pipe with holes, outlet connection, upper protector, motor, thrust section, lower protector and the inversion oil-immersed pump that connect successively from top to bottom; Described outlet connection is connected with described pipe with holes; Cable on described motor is connected through the wellhead assembly and external power supply being in cannula tip; Described lower protector is provided with is inverted oil-immersed pump suction port; Second oil pipe of described inversion oil-immersed pump outlet end is provided with one-way valve, and this second oil pipe is through the tab-delimited device entering inside pipe casing for isolated outside liquid from casing shoe.
2. one according to claim 1 is inverted injecting submersible pump system, it is characterized in that: described upper protector comprise from top to bottom set gradually upper protector head, upper protector first housing, on protect central siphon seat, upper protector second housing and upper bed-plate; Be provided with in described upper protector head communicate with upper protector capsule chamber input end protect central siphon; Described protect central siphon be arranged on described on protect on central siphon seat, its upper end is arranged on bottom protector head; The described central siphon that protects is provided with the inlet opening communicated with upper protector capsule chamber; Protect on described central siphon seat be provided with connect with upper protector setting chamber on protect central siphon block hole; Described upper protector head is provided with and protects the cavity and the outside upper protector capsule exocoel exhaust port communicated that upper protector capsule inner chamber exhaust port that central siphon cavity communicates and upper protector capsule chamber and described inside pipe casing formed; Described upper bed-plate is provided with lower bottom base through hole, vertically on this lower bottom base through hole is provided with sedimentation pipe.
3. one according to claim 2 is inverted injecting submersible pump system, it is characterized in that: described upper bed-plate lower end is provided with the flange and outer stopper that are connected with motor.
4. one according to claim 2 is inverted injecting submersible pump system, it is characterized in that: described inlet opening is arranged on and protects the position that central siphon is in protector capsule chamber top, and described inlet opening arranges several along the radial direction of protecting central siphon.
5. one according to claim 1 is inverted injecting submersible pump system, it is characterized in that: described lower protector comprise the lower protector head from top to bottom set gradually, lower protector housing, under protect central siphon, under protect central siphon seat and lower protector base; Protect central siphon lower end under described to be arranged on down and to protect on central siphon seat, upper end is arranged on lower protector head; Protect under described between central siphon seat and lower protector base and be provided with lower protector thrust bearing section; Bottom described lower protector thrust bearing section, described lower protector base is installed; Described lower protector head is provided with the axial hole connected with lower protector setting chamber, and is provided with the lower lumen exhaust port that the external world communicates.
6. one according to claim 5 is inverted injecting submersible pump system, it is characterized in that: described lower protector head upper end is provided with the screw connecting described thrust section.
7. one according to claim 1 is inverted injecting submersible pump system, it is characterized in that: the spline housing that described thrust section comprises thrust bearing axle, thrust bearing shell, the upper and lower two ends of thrust bearing axle are installed respectively, secondary with coaxial mounted thrust bearing on thrust bearing axle; The locking ring of fixing thrust bearing pair is provided with in described thrust bearing shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520636769.2U CN205013319U (en) | 2015-08-20 | 2015-08-20 | Invert water injection electrical submersible pump pumping system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520636769.2U CN205013319U (en) | 2015-08-20 | 2015-08-20 | Invert water injection electrical submersible pump pumping system |
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| CN205013319U true CN205013319U (en) | 2016-02-03 |
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| CN201520636769.2U Active CN205013319U (en) | 2015-08-20 | 2015-08-20 | Invert water injection electrical submersible pump pumping system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156340A (en) * | 2015-08-20 | 2015-12-16 | 天津市百成油田采油设备制造有限公司 | Inverse water-injection electric submersible pump system |
| CN110741134A (en) * | 2017-07-25 | 2020-01-31 | 哈利伯顿能源服务公司 | Elastomer sealing bag protection device |
| US11414968B2 (en) | 2020-10-29 | 2022-08-16 | Saudi Arabian Oil Company | Method and system for subsurface to subsurface water injection |
-
2015
- 2015-08-20 CN CN201520636769.2U patent/CN205013319U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156340A (en) * | 2015-08-20 | 2015-12-16 | 天津市百成油田采油设备制造有限公司 | Inverse water-injection electric submersible pump system |
| CN105156340B (en) * | 2015-08-20 | 2018-08-21 | 天津市百成油田采油设备制造有限公司 | A kind of inversion injecting submersible pump system |
| CN110741134A (en) * | 2017-07-25 | 2020-01-31 | 哈利伯顿能源服务公司 | Elastomer sealing bag protection device |
| CN110741134B (en) * | 2017-07-25 | 2022-03-08 | 哈利伯顿能源服务公司 | Elastomer sealing bag protection device |
| US11414968B2 (en) | 2020-10-29 | 2022-08-16 | Saudi Arabian Oil Company | Method and system for subsurface to subsurface water injection |
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