CN106151061A - Combined threaded rod pump and without bar hoisting system - Google Patents
Combined threaded rod pump and without bar hoisting system Download PDFInfo
- Publication number
- CN106151061A CN106151061A CN201610615384.7A CN201610615384A CN106151061A CN 106151061 A CN106151061 A CN 106151061A CN 201610615384 A CN201610615384 A CN 201610615384A CN 106151061 A CN106151061 A CN 106151061A
- Authority
- CN
- China
- Prior art keywords
- rotor
- screw rod
- stator
- motor
- threaded rod
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
- F04D13/10—Units comprising pumps and their driving means the pump being electrically driven for submerged use adapted for use in mining bore holes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/128—Adaptation of pump systems with down-hole electric drives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
- F04D13/086—Units comprising pumps and their driving means the pump being electrically driven for submerged use the pump and drive motor are both submerged
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D3/00—Axial-flow pumps
- F04D3/02—Axial-flow pumps of screw type
Abstract
The present invention provides a kind of combined threaded rod pump and without bar hoisting system；Described combined threaded rod pump includes: motor, and described motor includes rotor and the stator arranged around described rotor；It is arranged at the entrance and exit on described rotor；Described outlet is for being connected with described oil pipe；It is formed with fluid course from the entrance of described rotor to described outlet；It is arranged at the screw rod in described fluid course；It is arranged at described rotor towards the first screw thread on the wall of described screw rod；The second screw thread being arranged on the outer wall of described screw rod, when described rotor is relative to described stator rotation, described first screw thread closes with described second threaded engagement, to be flowed in described oil pipe from described fluid course by liquid.Present invention achieves provides a kind of and can improve the lower curved section purpose of combined threaded rod pump by property.
Description
Technical field
The present invention relates to oil recovery machiner field, particularly relate to a kind of combined threaded rod pump and without bar hoisting system.
Background technology
Along with going deep into of oil field development, in order to increase drainage area, improving well yield, inclined shaft, horizontal well quantity are continuous
Increase.When using sucker rod pump, the problem that rod and tube partial-wear often occurs, and maintenance cost is high, so generally adopting in prior art
With the liquid lifting inclined shaft, horizontal well without bar Lifting Technique.
In existing Lifting Technique without bar, electric submersible pump rotating speed is high, caloric value is big, so being applicable to barreler.Work as oil
Well production is less than 30m3During/d, application electric submersible pump lifting will easily make electric submersible pump burn out.And screw pump rotating speed is low, caloric value is little,
So being applicable to stripper well.
Chinese invention patent CN203500048U discloses " a kind of electric submersible screw pump oil rig ".This electric submersible screw pump is taken out
Oil device includes oil pipe, ball-and-seat, screw pump, centering type vibroshock, motor protecter, submersible electric machine with oil on the pump that is sequentially connected with.
This system disclosure satisfy that the needs that stripper well lifts without bar.But screw pump mutually concatenates with submersible electric machine with oil in this system, so
The length of the tool string of this concatenation is longer than the length of screw pump and the length of submersible electric machine with oil respectively.When the length of tool string is longer
Time, the place that the difficulty passed through in inclined shaft, especially dog-leg severity are bigger can be increased, be susceptible to meet the accident of card, seriously
Affect pump setting depth.
Summary of the invention
It is an object of the invention to provide a kind of lower curved section that can improve and pass through the combined threaded rod pump of property.
The above-mentioned purpose of the present invention can use following technical proposal to realize: a kind of combined threaded rod pump；Described combined threaded rod
Pump includes: motor, and described motor includes rotor and the stator arranged around described rotor；The entrance being arranged on described rotor and
Outlet；Described outlet is for being connected with oil pipe；It is formed with fluid course from the entrance of described rotor to described outlet；It is arranged at
Screw rod in described fluid course；It is arranged at described rotor towards the first screw thread on the wall of described screw rod；It is arranged at described spiral shell
The second screw thread on the outer wall of bar, when described rotor is relative to described stator rotation, described first screw thread and described second spiral shell
Stricture of vagina engages, to be flowed in described oil pipe from described fluid course by liquid.
As one preferred embodiment, described screw rod connects thrust brake, and described thrust brake can be to described spiral shell
Bar is fixed.
As one preferred embodiment, described rotor is provided with permanent magnet.
As one preferred embodiment, described rotor is quality of rubber materials towards the wall of described screw rod.
As one preferred embodiment, described stator includes stator core and around determining that described stator core is arranged
Sub-winding, described stator winding is electrically connected with ground electric cabinet, and described electric cabinet can control the break-make of described motor.
As one preferred embodiment, comprising: the control device being electrically connected with described motor, described control fills
Put the break-make of the electric current that can control described motor, so that the electric current of described motor has predetermined scope, when the electricity of described motor
When stream exceedes described predetermined scope, described control device can cut off the power supply of described motor.
A kind of without bar hoisting system；Described hoisting system without bar includes: the housing being connected with oil pipe；It is arranged at described
Motor in housing, described motor includes rotor and the stator arranged around described rotor；It is arranged at the entrance on described rotor
And outlet；Described outlet is for being connected with described oil pipe；It is formed with fluid course from the entrance of described rotor to described outlet；
It is arranged at the screw rod in described fluid course；It is arranged at described rotor towards the first screw thread on the wall of described screw rod；It is arranged at
The second screw thread on the outer wall of described screw rod, when described rotor is relative to described stator rotation, described first screw thread is with described
Second threaded engagement closes, to be flowed in described oil pipe from described fluid course by liquid.
As one preferred embodiment, described rotor have back to top and bottom, described entrance is arranged at
On the end face of described bottom.
As one preferred embodiment, the top of described rotor is provided with the first sealing member, described first sealing member
The annular space between described rotor and described housing can be sealed.
As one preferred embodiment, the bottom of described rotor is provided with the second sealing member, described second sealing member
The annular space between described rotor and described housing can be sealed.
A kind of combined threaded rod pump that the present invention provides provides the benefit that: a kind of combined threaded rod pump that the present invention provides, spiral shell
Bar is arranged at the inside of rotor, when the rotor rotates relative to the stator, the first screw thread on rotor and the second screw thread on screw rod
Engage, thus liquid is mobile towards outlet from entrance, it is achieved the lifting of liquid.Compared with prior art, the present invention provides
The screw rod of a kind of combined threaded rod pump be arranged on the inside of motor, so the length of the combination of combined threaded rod pump and motor in this system
The contraction in length of combination that degree mutually concatenates with submersible electric machine with oil relative to screw pump of the prior art, thus improve this and be
The property passed through of the lower curved section of system.Present invention achieves provides a kind of and can improve the lower curved section mesh of hoisting system without bar by property
's.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in embodiment being described below required for make
Accompanying drawing be briefly described, it should be apparent that, below describe in accompanying drawing be only some embodiments of the present invention, for
From the point of view of those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the combined threaded rod pump structure schematic diagram that one embodiment of the present invention provides；
Fig. 2 is the structural representation of the hoisting system without bar that one embodiment of the present invention provides；
Fig. 3 is the overall system view of the hoisting system without bar that one embodiment of the present invention provides.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the application embodiment, the technical scheme in the application embodiment is carried out clearly
Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of the application rather than whole realities
Execute mode.Based on the embodiment in the application, those of ordinary skill in the art are institute under not making creative work premise
The every other embodiment obtained, broadly falls into the scope of the application protection.
It should be noted that when element is referred to as " being arranged at " another element, and it can be directly on another element
Or element placed in the middle can also be there is.When an element is considered as " connection " another element, and it can be to be directly connected to
To another element or may be simultaneously present centering elements.Term as used herein " vertical ", " level ", " left ",
For illustrative purposes only, being not offered as is unique embodiment for " right " and similar statement.
Unless otherwise defined, all of technology used herein and scientific terminology and the technical field belonging to the application
The implication that technical staff is generally understood that is identical.Term used in the description of the present application is intended merely to describe tool herein
The purpose of the embodiment of body, it is not intended that in limiting the application.Term as used herein "and/or" includes one or more
Arbitrary and all of combination of relevant Listed Items.
Referring to Fig. 1, Fig. 3, the present invention provides a kind of combined threaded rod pump；Described combined threaded rod pump includes: motor, described electricity
Machine includes rotor 19 and the stator 21 arranged around described rotor 19；The entrance 23 being arranged on described rotor 19 and outlet 25；
Described outlet 25 is connected with described oil pipe 10；It is formed with fluid course to described outlet 25 from the entrance 23 of described rotor 19
27；It is arranged at the screw rod 35 in described fluid course 27；It is arranged at described rotor 19 towards first on the wall of described screw rod 35
Screw thread；It is arranged at the second screw thread on the outer wall of described screw rod 35, when described rotor 19 rotates relative to described stator 21, institute
State the first screw thread to close with described second threaded engagement, to be flowed in described oil pipe 10 from described fluid course 27 by liquid.
A kind of combined threaded rod pump that the present invention provides, screw rod 35 is arranged at the inside of rotor 19, when rotor 19 is relative to fixed
When son 21 rotates, the first screw thread on rotor 19 closes with the second threaded engagement on screw rod 35, thus by liquid from entrance 23 court
Outlet 25 to move, it is achieved the lifting of liquid.Compared with prior art, the screw rod of a kind of combined threaded rod pump that the present invention provides sets
Put the inside at motor, so the length of the combination of combined threaded rod pump and motor is relative to screw pump in prior art in this system
The contraction in length of the combination mutually concatenated with submersible electric machine with oil, thus improve the property passed through of the lower curved section of this system.The present invention
Achieving provides a kind of and can improve the lower curved section purpose of hoisting system without bar by property.
As shown in Figure 1, Figure 3, in the present embodiment, the present invention provides a kind of combined threaded rod pump 59 to include: motor, this electricity
Machine includes rotor 19 and the stator 21 arranged around rotor 19, and rotor 19 can rotate relative to stator 21, it is thus possible to be external pump
Body provides mechanical energy.This rotor 19 is arranged in stator 21, thus stator 21 can be arranged around rotor 19.
In one embodiment, this rotor 19 can include rotor core and the rotor that is arranged in rotor core around
Group, thus when rotor windings energising is energized with stator winding simultaneously, this rotor 19 can rotate for stator 21.
In one embodiment, this rotor 19 can also include rotor core and the permanent magnet being arranged in rotor core
39, thus when stator winding electrifying, this rotor 19 can rotate for stator 21.
As shown in Figure 1 and Figure 2, in the present embodiment, rotor 19 is provided with entrance 23 and outlet 25；This outlet 25 with
Oil pipe 10 is connected；Thus the liquid in this rotor 19 can be flowed in oil pipe 10 by this outlet 25.From the entrance 23 of rotor 19
It is formed with fluid course 27 to outlet 25；Thus this entrance 23 is connected, to provide liquid by fluid course 27 with outlet 25
The passage of circulation.
As shown in Figure 1 and Figure 2, in the present embodiment, fluid course 27 is provided with screw rod 35.This screw rod 35 and rotor
Form annular seal space between 19, thus when rotor 19 rotates relative to stator 21, the crude oil in shaft bottom can be inhaled in this annular seal space,
And it is lifted to ground.
As shown in Figure 1 and Figure 2, in the present embodiment, rotor 19 is provided with the first screw thread on the wall of screw rod 35；Spiral shell
The second screw thread it is provided with on the outer wall of bar 35, when rotor 19 rotates relative to stator 21, the first screw thread and the second threaded engagement
Close, so that liquid is moved and flows in oil pipe 10 from entrance 23 towards outlet 25, it is thus possible to extract the liquid in shaft bottom.When
When rotor 19 rotates relative to stator 21, rotor 19 1 aspect rotates around the axis of self, and on the other hand it is again along outside screw rod 35
Wall rolls, and then forms the sealing chamber of pump.Rotor 19 often rotates a circle, and the liquid of annular seal space indoor pushes ahead a spiral shell
Away from, along with the continuous rotation of rotor 19, liquid seals chamber to another, finally with spiral fashion from an annular seal space chamber pressure
Extrusion fluid course 27, thus liquid is moved and flow into from entrance 23 towards outlet 25 in oil pipe 10.
As in figure 2 it is shown, in one embodiment, this screw rod 35 connects thrust brake 37, and this thrust brake 37 can be right
Screw rod 35 is fixed.
In the present embodiment, this screw rod 35 connects thrust brake 37, and screw rod 35 can be carried out solid by this thrust brake 37
Fixed, to stop screw rod 35 to rotate, thus when rotor 19 rotates relative to stator 21, this screw rod 35 owing to being fixed, institute
Can rotate relative to screw rod 35 with rotor 19.This thrust brake 37 one end is connected with screw rod 35, and the other end is connected with housing 15
Connect, thus screw rod 35 can be fixed by this thrust brake 37.Further, one end of this thrust brake 37 is close with screw rod 35
The end of the entrance 23 of rotor 19 is connected.This connected mode can be threaded, welding, one-body molded.
In one embodiment, stator 21 can produce the first magnetic field, and rotor 19 can produce the second magnetic field, thus rotor 19
Can rotate relative to stator 21 under the effect in the first magnetic field and the second magnetic field.
In the present embodiment, this stator 21 can include stator core and the stator that is centered around in this stator core around
Group, thus when stator winding electrifying, this stator 21 can produce the first magnetic field.This rotor 19 can include rotor core and setting
Rotor windings in rotor core, thus when rotor windings is energized, this rotor 19 can produce the second magnetic field.This rotor 19 is also
For permanent magnet 39, this permanent magnet 39 provides the second magnetic field.
In one embodiment, rotor 19 is provided with permanent magnet 39.
In the present embodiment, this permanent magnet 39 refers to keep for a long time the magnet of its magnetic.This permanent magnet 39 is permissible
It is the one in following material: lodestone, such as magnetic iron ore；Artificial magnet, such as alnico alloy.This rotor 19 can be
The metal tube that lengthwise extends, this permanent magnet 39 is arranged on the wall of this metal tube screw rod 35 dorsad.
In one embodiment, rotor 19 is quality of rubber materials towards the wall of screw rod 35.
In the present embodiment, when rotor 19 rotates relative to screw rod 35, owing to rotor 19 towards the wall of screw rod 35 is
Quality of rubber materials, so the wearability that can increase between rotor 19 and screw rod 35, thus improve the use longevity of rotor 19 and screw rod 35
Life.
As shown in Figure 1, 2, in the present embodiment, stator include stator core and around stator core arrange stator around
Group, stator winding is electrically connected with ground electric cabinet, and electric cabinet can control the break-make of motor.
In one embodiment, this stator 21 can include stator core and be centered around the stator that this stator core is arranged
Winding, this rotor 19 is arranged in stator winding, thus stator 21 can be arranged around rotor 19.This stator winding passes through cable 53
It is electrically connected with ground electric cabinet 57, to realize the control to motor break-make.
In the present embodiment, a kind of combined threaded rod pump that the present invention provides includes: the control being electrically connected with described motor
Device processed, described control device can control the break-make of the electric current of described motor, so that the electric current of described motor has predetermined model
Enclosing, when the electric current of described motor exceedes described predetermined scope, described control device can cut off the power supply of described motor.
In one embodiment, a kind of combined threaded rod pump that the present invention provides is applicable to the exploitation of the liquid of stripper well,
So in order to exploit stripper well, the rotating speed of rotor 19 can not be the highest.Needed for this predetermined scope refers to keep the slow-speed of revolution for rotor 19
The scope of the electric current of the motor wanted.This control device 51 can control the break-make of the electric current of motor, so that the electric current of motor has pre-
Fixed scope, thus when the electric current of motor exceedes predetermined scope, this control device 51 can cut off the power supply of motor, thus
Ensure that rotor 19 keeps the slow-speed of revolution.This control device 51 can be motor protecter.This control device 51 is arranged on cylinder 41.
As shown in Figure 2 and Figure 3, in the present embodiment, the present invention provides one to include without bar hoisting system: energy and oil pipe
The housing 15 that 10 are connected, so that the crude oil in oil well can be flowed in oil pipe 10 by this housing 15, thus gives rise to externally
Face.This oil pipe 10 have back to the first end 11 and the second end 13.This oil pipe 10 is for providing logical for the liquid in conveying well
Road.This first end 11 is for being connected with well head 55 device；So that this oil pipe 10 is connected with well head 55, thus liquid can be defeated
Deliver on ground.This second end 13 is for being connected with housing 15, and this connected mode can be threaded, welding, integrally one-tenth
Type.It is provided with motor in this housing 15.This motor is for providing power for lifting crude oil.
In the present embodiment, the present invention provides one to include without bar hoisting system: the motor being arranged in housing, motor
Including rotor 19 and around rotor 19 arrange stator 21, rotor 19 can rotate relative to stator 21；It is arranged on rotor 19
Entrance 23 and outlet 25；It is formed with fluid course 27 to outlet 25 from the entrance 23 of rotor 19；It is arranged in fluid course 27
Screw rod 35；It is arranged at rotor 19 towards the first screw thread on the wall of screw rod 35；The second screw thread being arranged on the outer wall of screw rod 35,
When rotor 19 rotates relative to stator 21, the first screw thread and the second threaded engagement close, to be flowed into from fluid course 27 by liquid
In oil pipe 10.A kind of combined threaded rod pump that the present invention provides concatenates mutually with submersible electric machine with oil relative to screw pump in prior art
Tool string, under enter in inclined shaft time, higher by property.
In one embodiment, rotor 19 have back to top 31 and bottom 33, entrance 23 is arranged at bottom 33
End face on.
In the present embodiment, entrance 23 is arranged on the end face of bottom 33, in the well that some silt contents are bigger, energy
Convenient addition sand control installation, it is ensured that oil well can steady production.
As in figure 2 it is shown, in one embodiment, the top 31 of rotor 19 is provided with the first sealing member 47, and first seals
Annular space between part 47 energy canned rotor 19 and housing 15.
In the present embodiment, the annular space between this first sealing member 47 energy canned rotor 19 and housing 15, thus
Can prevent when rotor 19 rotates relative to screw rod 35, liquid flows downward out this oil pipe 10 from oil pipe 10.This first sealing member
47 can be O.Specifically, in oil pipe 10, be provided with the cylinder 41 of hollow, cylinder 41 have back to upper end 43 and under
End 45, lower end 45 is connected with outlet 25；When liquid moves towards the direction of outlet 25 from entrance 23, this liquid can pass through
Mouth 25 enters in cylinders 41, and flows out this cylinder 41.First sealing member 47 is arranged at upper end 4, and the first sealing member 47 can seal
Annular space between upper end 43 and the oil pipe 10 of cylinder 41.
In one embodiment, the bottom 33 of rotor 19 is provided with the second sealing member 49, and this second sealing member 49 can be close
Annular space between envelope rotor 19 and housing 15.
In the present embodiment, stator 21 is provided with opening 29 on one end of the second end 13, the bottom 33 of rotor 19
Extending through the opening 29 of stator 21, screw rod 35 extends along the bearing of trend of bottom 33.Housing 15 is back to one end of the second end 13
Extend to the direction away from motor and form extension 17.Second sealing member 49 is arranged at the bottom 33 of rotor 19, this second sealing
Annular space between part 49 energy sealed bottom 33 and extension 17, thus when rotor 19 rotates relative to screw rod 35, bottom
The liquid of 33 can be inhaled in fluid course 27, moves towards the direction of outlet 25, and this second sealing member 49 can be O.
It should be understood that above description is to illustrate rather than to limit.By reading above-mentioned retouching
Stating, the many embodiments outside the example provided and many application will be the most all aobvious and easy
See.Therefore, the scope of this teaching should not determine with reference to foregoing description, but should with reference to aforementioned claim and this
The four corner of the equivalent that a little claim are had determines.Include specially for comprehensive purpose, all articles and reference
The disclosure of profit application and bulletin is all passed through with reference to being incorporated herein.Theme disclosed herein is omitted in aforementioned claim
Any aspect is not intended to abandon this body matter, also should not be considered as applicant and is not thought of as disclosed by this theme
A part for application theme.
Claims (10)
1. a combined threaded rod pump；It is characterized in that, described combined threaded rod pump includes:
Motor, described motor includes rotor and the stator arranged around described rotor；
It is arranged at the entrance and exit on described rotor；Described outlet is for being connected with oil pipe；From the entrance of described rotor extremely
Described outlet is formed with fluid course；
It is arranged at the screw rod in described fluid course；
It is arranged at described rotor towards the first screw thread on the wall of described screw rod；
The second screw thread being arranged on the outer wall of described screw rod, when described rotor is relative to described stator rotation, described first
Screw thread closes with described second threaded engagement, to be flowed in described oil pipe from described fluid course by liquid.
Combined threaded rod pump the most according to claim 1, it is characterised in that: described screw rod connects a thrust brake, described only
Described screw rod can be fixed by pushing device.
Combined threaded rod pump the most according to claim 1, it is characterised in that: it is provided with permanent magnet on described rotor.
Combined threaded rod pump the most according to claim 1, it is characterised in that: described rotor is rubber towards the wall of described screw rod
Material.
Combined threaded rod pump the most according to claim 1, it is characterised in that: described stator includes stator core and around described
The stator winding that stator core is arranged, described stator winding is electrically connected with ground electric cabinet, and described electric cabinet can control
The break-make of described motor.
Combined threaded rod pump the most according to claim 1, it is characterised in that comprising: the control being electrically connected with described motor
Device processed, described control device can control the break-make of the electric current of described motor, so that the electric current of described motor has predetermined model
Enclosing, when the electric current of described motor exceedes described predetermined scope, described control device can cut off the power supply of described motor.
7. one kind without bar hoisting system；It is characterized in that, described hoisting system without bar includes:
The housing being connected with oil pipe；
Being arranged at the motor in described housing, described motor includes rotor and the stator arranged around described rotor；
It is arranged at the entrance and exit on described rotor；Described outlet is for being connected with described oil pipe；From entering of described rotor
Mouth to described outlet is formed with fluid course；
It is arranged at the screw rod in described fluid course；
It is arranged at described rotor towards the first screw thread on the wall of described screw rod；
The second screw thread being arranged on the outer wall of described screw rod, when described rotor is relative to described stator rotation, described first
Screw thread closes with described second threaded engagement, to be flowed in described oil pipe from described fluid course by liquid.
Hoisting system without bar the most according to claim 7, it is characterised in that: described rotor have back to top and the end
End, described entrance is arranged on the end face of described bottom.
Hoisting system without bar the most according to claim 8, it is characterised in that: the top of described rotor is provided with the first sealing
Part, described first sealing member can seal the annular space between described rotor and described housing.
Hoisting system without bar the most according to claim 8, it is characterised in that: it is close that the bottom of described rotor is provided with second
Sealing, described second sealing member can seal the annular space between described rotor and described housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610615384.7A CN106151061A (en) | 2016-07-29 | 2016-07-29 | Combined threaded rod pump and without bar hoisting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610615384.7A CN106151061A (en) | 2016-07-29 | 2016-07-29 | Combined threaded rod pump and without bar hoisting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106151061A true CN106151061A (en) | 2016-11-23 |
Family
ID=57327885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610615384.7A Pending CN106151061A (en) | 2016-07-29 | 2016-07-29 | Combined threaded rod pump and without bar hoisting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106151061A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812503A (en) * | 2016-12-29 | 2017-06-09 | 中国石油天然气股份有限公司 | Integration lifts tubing string without bar |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1188669A (en) * | 1966-12-26 | 1970-04-22 | Magnesita S A | Improvements in or relating to Rotary Pumps |
| US3932072A (en) * | 1973-10-30 | 1976-01-13 | Wallace Clark | Moineau pump with rotating outer member |
| CN2172343Y (en) * | 1993-09-01 | 1994-07-20 | 石油勘探开发科学研究院机械研究所 | Well oil extracting unit without oil pipe |
| CN2700606Y (en) * | 2003-12-03 | 2005-05-18 | 扬振平 | Ground surface driven screw pump for rodless pumping operation |
| CN104514703A (en) * | 2013-09-27 | 2015-04-15 | 中国石油天然气股份有限公司 | Nonmetal pipe submersible screw pump oil extraction device |
-
2016
- 2016-07-29 CN CN201610615384.7A patent/CN106151061A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1188669A (en) * | 1966-12-26 | 1970-04-22 | Magnesita S A | Improvements in or relating to Rotary Pumps |
| US3932072A (en) * | 1973-10-30 | 1976-01-13 | Wallace Clark | Moineau pump with rotating outer member |
| CN2172343Y (en) * | 1993-09-01 | 1994-07-20 | 石油勘探开发科学研究院机械研究所 | Well oil extracting unit without oil pipe |
| CN2700606Y (en) * | 2003-12-03 | 2005-05-18 | 扬振平 | Ground surface driven screw pump for rodless pumping operation |
| CN104514703A (en) * | 2013-09-27 | 2015-04-15 | 中国石油天然气股份有限公司 | Nonmetal pipe submersible screw pump oil extraction device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812503A (en) * | 2016-12-29 | 2017-06-09 | 中国石油天然气股份有限公司 | Integration lifts tubing string without bar |
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Application publication date: 20161123 |