CN109469462A - Screw pump starting device - Google Patents
Screw pump starting device Download PDFInfo
- Publication number
- CN109469462A CN109469462A CN201710805346.2A CN201710805346A CN109469462A CN 109469462 A CN109469462 A CN 109469462A CN 201710805346 A CN201710805346 A CN 201710805346A CN 109469462 A CN109469462 A CN 109469462A
- Authority
- CN
- China
- Prior art keywords
- cavity
- screw pump
- valve body
- oil
- sliding sleeve
- 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.)
- Granted
Links
- 230000004913 activation Effects 0.000 claims description 23
- 230000000903 blocking effect Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 abstract description 39
- 238000005086 pumping Methods 0.000 abstract description 13
- 238000000605 extraction Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000011161 development Methods 0.000 abstract description 4
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 238000007789 sealing Methods 0.000 description 9
- 230000000717 retained effect Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000003208 petroleum Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000003129 oil well Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/08—Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
- E21B2200/06—Sleeve valves
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention discloses a screw pump starting device, and belongs to the technical field of oil extraction in an oil field. The screw pump starting device comprises a body, a valve body and a sliding sleeve, wherein a drainage channel formed by a first cavity, a third cavity, an annular space and an oil outlet channel and a lifting channel formed by the first cavity, the third cavity and an oil inlet channel are formed in the body and the valve body, and the sliding sleeve can slide upwards to block the drainage channel or slide downwards to block the lifting channel; namely, when the screw pump stops pumping and discharges, the liquid column remained at the upper end of the screw pump is unloaded by using the discharge channel, so that the starting torque of the screw pump is reduced; when the screw pump lifts to extract oil, the underground liquid is lifted by the lifting channel. The screw pump starting device can realize the lifting of the screw pump by matching the normal working torque screw motor, the normal-power injection and production pump and the common oil pipeline, improves the adaptability of the screw pump in a well, and is favorable for the popularization and the use of the screw pump in the development of an oil field.
Description
Technical field
The invention belongs to oil field well oil recovery technique field, in particular to a kind of screw rod pump activation device.
Background technique
With deepening continuously for onshore oil field Exploitation degree, the quantity of High angle oil well increases year by year.High angle oil well tool
There is oil reservoir to bury the features such as depth, daily fluid production rate are low, well track is complicated, when being exploited using sucker rod pump to it, rod and tube partial-wear is serious,
And pump detection period is short, pump efficiency is low.
In order to solve the problems such as rod and tube partial-wear is serious, pump detection period is short low with pump efficiency, at present to the exploitation of High angle oil well
Underground is usually realized by the interference fit between the stator with spiral helicine rotor and with helicoid by screw pump
The transmission of liquid from bottom to top.And when screw pump interrupts suddenly in process of production, when causing termination of pumping, the prior art is mainly benefit
Realize the restarting of screw pump jointly with the matched injection-extraction pump of underground screw motor tie surface and petroleum pipeline.
In the implementation of the present invention, the inventors discovered that in the prior art the prior art has at least the following problems:
When restarting screw pump, since the upper end of screw pump has retained fluid column, so that the starting torque of screw pump is big,
Screw pump needs to be equipped with the screw motor that operation torque is 3-5 times of normal operation torque and is just able to achieve restarting for screw pump, and is somebody's turn to do
The power of screw motor is big, the bad adaptability in well, meanwhile, the matched injection-extraction pump in ground requires to be high power injection-extraction pump, defeated
The petroleum pipeline that oil pipeline requires as high compressive strength, considerably increases the production cost of exploitation, seriously limits screw pump
Popularization and use in oil field development.
Summary of the invention
In consideration of it, the present invention provides and a kind of holds the screw pump of the fluid column retained to open on it when screw pump termination of pumping to unload
Dynamic device.
Specifically, including technical solution below:
The embodiment of the invention provides a kind of screw rod pump activation device, described device includes: ontology, valve body and sliding sleeve,
In,
The inside of the ontology is formed with the first cavity and the second cavity being connected to up and down, and the valve body is located at described second
In cavity；
Annular space, the valve body are formed between the valve body ontology corresponding with the second cavity (102)
Upper end offer the third cavity being connected to first cavity；The valve body offers oil discharge passage, the oil discharge passage
External with described device is connected to, and is connected to by the annular space with the third cavity；The valve body be also provided with into
Oily channel, the outside of the oil inlet passage connection described device and the third cavity；
The sliding sleeve, which can slide up and down to, to be arranged in the annular space, and the sliding sleeve is for described in upward sliding closure
Oil discharge passage or slide downward block the oil inlet passage.
Further, the oil discharge passage includes the first radial hole and axial hole, and first radial hole is connected to the axis
Annular space described in Xiang Konghe.
Further, the oil inlet passage includes the second radial hole, the position of second radial hole in the vertical direction
Height is lower than the position height of first radial hole in the vertical direction, and second radial hole does not connect with the axial hole
It is logical.
Further, the third cavity includes the upper cavity and lower chamber of connection, and the internal diameter of the upper cavity is greater than institute
The internal diameter of lower chamber is stated, and is provided with the sphere for being suitable for blocking the lower chamber in the upper cavity.
Further, the upper cavity is connected to by the annular space with the oil discharge passage；The lower chamber and institute
State oil inlet passage connection.
Further, third radial hole, the third diameter are offered on the wall of the corresponding valve body of the upper cavity
The annular space and the upper cavity are connected to hole.
Further, first annular groove is offered in the lower end of the valve body, the sliding sleeve is slidably sleeved on institute
It states in first annular groove.
Further, the valve body further includes orifice plate, and the orifice plate is arranged in first cavity and the third cavity
Junction.
Technical solution provided in an embodiment of the present invention the utility model has the advantages that
The embodiment of the invention provides a kind of to unload the screw pump for holding the fluid column retained when screw pump termination of pumping on it
Starter.The screw rod pump activation device includes ontology, valve body and sliding sleeve, be formed in ontology and valve body by the first cavity,
The current by pass and formed by the first cavity, third cavity and oil inlet passage that third cavity, annular space and oil discharge passage are formed
Lifting channel, sliding sleeve can upward sliding block current by pass or slide downward and block lifting channel；Let out in screw pump termination of pumping
When stream, sliding sleeve downlink blocks lifting channel, and the fluid column that screw pump upper end retains is unloaded by current by pass, to reduce screw rod
The starting torque of pump；When screw pump is lifted and recovered the oil, sliding sleeve uplink blocks current by pass, and down-hole liquid is lifted by lifting channel
It rises, realizes normal production.The screw rod pump activation device can be adopted by being equipped with the note of normal work torque screw motor, normal power
The lifting of screw pump is realized in pump and the cooperation of common petroleum pipeline, is improved adaptability of the screw pump in well, is conducive to screw pump
Popularization and use in oil field development.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is structural schematic diagram of the screw rod pump activation device provided in an embodiment of the present invention in screw pump termination of pumping aerial drainage；
Fig. 2 is the schematic diagram of the section structure of the Fig. 1 at A-A；
Fig. 3 is structural schematic diagram of the screw rod pump activation device provided in an embodiment of the present invention when screw pump lifts oil recovery.
Appended drawing reference in figure respectively indicates:
1, ontology；
101, the first cavity；
102, the second cavity；
2, valve body；
201, third cavity；
2011, upper cavity；
2012, lower chamber；
202, annular space；
203, oil discharge passage；
2031, the first radial hole；
2032, axial hole；
204, oil inlet passage；
2041, the second radial hole；
205, third radial hole；
3, sliding sleeve；
4, sphere；
5, orifice plate；
6, the first sealing ring；
7, the second sealing ring.
Specific embodiment
To keep technical solution of the present invention and advantage clearer, below in conjunction with attached drawing to embodiment of the present invention make into
One step it is described in detail.
The embodiment of the invention provides a kind of screw rod pump activation device, which is arranged in the upper end of screw pump, device
Structural schematic diagram is as shown in Figure 1, include ontology 1, valve body 2 and sliding sleeve 3.
The inside of ontology 1 is formed with the first cavity 101 and the second cavity 102 being connected to up and down, and valve body 2 is located at the second cavity
In 102.
Valve body 2 is formed with annular space 202 between ontology 1 corresponding with second cavity 102, valve body 2 it is upper
End offers the third cavity 201 being connected to the first cavity 101；Valve body 2 offers oil discharge passage 203, oil discharge passage 203 and dress
The external connection set, and be connected to by annular space 202 with third cavity 201；Valve body 2 is also provided with oil inlet passage 204, oil inlet
The outside of 204 communication apparatus of channel and third cavity 201.
Sliding sleeve 3, which can slide up and down to, to be arranged in annular space 202, and sliding sleeve 3 blocks oil discharge passage 203 for upward sliding
Or slide downward blocks oil inlet passage 204.
It should be noted that sliding sleeve 3 blocks the lower end of annular space 202, the first interconnected cavity 101, third are empty
Chamber 201, annular space 202 and oil discharge passage 203 form current by pass；And the first cavity 101, the third cavity being interconnected
201 and oil inlet passage 204 formed lifting channel.
The working principle of screw rod pump activation device provided in an embodiment of the present invention are as follows:
When screw pump termination of pumping aerial drainage, since the upper end of screw pump is arranged in device, and liquid has been retained in screw pump upper end
Column, so, 202 memory of annular space that the first cavity 101 in device, third cavity 201 are connected to is there are fluid column, on sliding sleeve 3
The pressure at end is greater than the pressure of 3 lower end of sliding sleeve, so that 3 downlink of sliding sleeve blocks oil inlet passage 204, the liquid that the upper end retains then leads to
The first cavity 101 for crossing the inside of ontology 1 is flowed into the third cavity 201 of valve body 2, then is flowed into ring from third cavity 201
In shape space 202, be flowed into oil discharge passage 203 by annular space 202, and further by oil discharge passage 203 continue to
Under, hollow rotor screw pump is flowed through, is lowered into the oil pipe of the lower end of screw pump, realizes the fluid column retained to the upper end of screw pump
Unloading, the starting torque of screw pump is reduced, convenient for the restarting of screw pump；
, can be under the driving effect of screw motor when screw pump is lifted and recovered the oil, the lower end of sliding sleeve 3 is by by screw rod
The thrust of liquid that pump lifting comes up so that 3 uplink of sliding sleeve blocks oil discharge passage 203, the liquid to be come up by screw pump lifting from
Oil inlet passage 204 is flowed into outside device, then from the third cavity 201 that oil inlet passage 204 is flowed into valve body 2, pass through third sky
Chamber 201 flows up in the first cavity 101 of ontology 1, continues up and is lifted from the first cavity 101, until being given rise to
Ground realizes the lifting oil producing operation of screw pump.
Therefore, the embodiment of the present invention is arranged simultaneously by forming current by pass and lifting channel in ontology 1 and valve body 2
Current by pass is blocked for upward sliding or slide downward blocks the sliding sleeve 3 in lifting channel, may be implemented to the fluid column retained
The lifting of unloading and down-hole liquid；I.e. in screw pump termination of pumping aerial drainage, sliding sleeve 3 can downlink block lifting channel, screw pump upper end
The fluid column retained is unloaded by current by pass, to reduce the starting torque of screw pump；When screw pump is lifted and is recovered the oil, sliding sleeve
3 can uplink block current by pass, down-hole liquid by lift channel lifted, normally produced.
Preferably, by fixed ontology 1 and valve body 2, make not produce relative sliding between ontology 1 and valve body 2, it can be to avoid
Such as annular space 202 be blocked or the first cavity 101 and third cavity 201 between situations such as not being connected to appearance, pass through by
Valve body 2 is securely removably connected in the second cavity 102 of ontology 1, so that the relative position between ontology 1 and valve body 2 is not
Become, for example, being fixedly connected between ontology 1 and valve body 2 can be connected by screw bolts or be snapped connection etc. to realize.
Based on above-mentioned, on the one hand, in one embodiment, fuel-displaced in order to which the termination of pumping aerial drainage of screw pump is better achieved
Channel 203 includes the first radial hole 2031 and axial hole 2032, as shown in Figure 1, the first radial hole 2031 is connected to axial hole 2032
With annular space 202；In another embodiment, oil discharge passage 203 can be the inclination straight hole on preset direction.Both
Embodiment can make sliding sleeve 3 by blocking closing of the first radial hole 2031 realization to oil discharge passage 203, alternatively, making to slide
Set 3 realizes the unlatching to oil discharge passage 203 by the first radial hole 2031 of deblocking.
It should be noted that the quantity value range of the axial hole 2032 in the device is 3-8, used actual
The quantity of axial hole 2032 can be arranged in Cheng Zhong according to the actual conditions of underground, as shown in Fig. 2, being A-A of the valve body 2 in Fig. 1
The sectional view at place, the quantity of axial hole 2032 is preferably 6 in the present embodiment.
On the other hand, in order to which the lifting that screw pump is better achieved is recovered the oil, oil inlet passage 204 includes the second radial hole
2041, as shown in figure 3, the second radial hole 2041 is lower than the first radial hole 2031 in vertical direction in the position height of vertical direction
Position height, and the second radial hole 2041 is not connected to axial hole 2032, avoids oil discharge passage 203 to oil inlet passage 204
Oil inlet has an impact, and oil inlet passage 204 has an impact the draining of oil discharge passage 203, so that oil inlet passage 204 and draining
It is independent mutually between channel 203.
Based on above structure, for the conversion being better achieved between oil inlet passage 204 and drain path 203, to screw rod
Pump activation device is further limited, and third cavity 201 includes the upper cavity 2011 and lower chamber 2012 of connection, upper cavity
2011 and lower chamber 2012 coaxial arrangement and lower chamber 2012 internal diameter be less than upper cavity 2011 internal diameter, so, in upper cavity
2011 will form step with the junction of lower chamber 2012, are provided with and are suitable for setting on step and can be in upper cavity 2011
For blocking the sphere 4 of lower chamber 2012, as shown in Figure 1, being in structural schematic diagram when setting state for sphere 4；Such as Fig. 3 institute
Show, the result schematic diagram of step state is detached from for sphere 4.It should be noted that sphere 4 can be for stronger corrosion resistance
With the stainless steel ball for shouldering pressure property.
Further, third radial hole 205 is offered on the wall of the corresponding place valve body 2 of upper cavity 2011, third is radial
Hole 205 is connected to annular space 202 and upper cavity 2011, so that being flowed into upper cavity 2011 from the first cavity 101 of ontology 1
Liquid can be flowed into annular space 202 from upper cavity 2011 by third radial hole 205, and then be flowed into oil discharge passage
In 203, entire current by pass connection is realized.
Meanwhile the position of sliding sleeve 3 also influences whether the conversion between the oil inlet passage 204 of the device and drain path 203,
For sliding sleeve 3, first annular groove is offered in the lower end of valve body 2, sliding sleeve 3 is slidably sleeved in first annular groove,
When the device is in screw pump termination of pumping aerial drainage, as shown in Figure 1, the lower end of sliding sleeve 3 is located at the lower part of first annular groove；When this
When device is in screw pump lifting oil recovery, as shown in figure 3, the upper end of sliding sleeve 3 is located at the top of first annular groove.
In a kind of possible embodiment, the flow process of liquid can be in screw rod pump activation device are as follows:
(1) when the device is in screw pump termination of pumping aerial drainage, liquid is flowed into upper cavity from the first cavity 101 of ontology 1
In 2011, so that sphere 4 is set on step under the action of hydraulic, lower chamber 2012 is blocked, liquid cannot enter down
In cavity 2012, the liquid in upper cavity 2011 can be flowed into annular space 202 by third radial hole 205, pushed and slided
3 downlinks are covered, since the first radial hole 2031 is higher than the second radial hole 2041 in vertical direction in the position height of vertical direction
Position height, so that 3 downlink of sliding sleeve blocks the second radial hole 2041, opens simultaneously the first radial hole 2031, so that ring
Liquid in shape space 202 enters oil discharge passage 203 by the first radial hole 2031, and liquid can pass through the dress from top to bottom
It sets；
(2) when the device, which is in screw pump lifting, to recover the oil, under the action of screw motor, screw pump lifts liquid under
Supreme movement, when liquid is flow to outside the device, since 3 lower end of sliding sleeve is by device external solution thrust body, so that 3 uplink of sliding sleeve
It blocks the first radial hole 2031, open simultaneously the second radial hole 2041, the second radial hole 2041 is connected to lower chamber 2012, liquid
Body is flowed into lower chamber 2012 from the second radial hole of the outside of device 2041, when the buoyancy of sphere 4 is greater than sphere 4 itself
When gravity, sphere 4 is detached from step, and liquid can be entered in upper cavity 2011 by lower chamber 2012, and be continued up.
It should be noted that the liquid of the outside of device is the liquid lifted up between screw pump rotor and stator herein
Body.
Based on this, in order to which when ensureing that liquid flows through inside device the damage of device will not be caused since flow velocity is too fast, valve
Body 2 further includes orifice plate 5, as shown in Figure 1, the junction of the first cavity 101 and third cavity 201 is arranged in orifice plate 5, in orifice plate 5
On offer several through-holes, and be equably laid on orifice plate 5, liquid can only realize the first cavity 101 and the by through-hole
Circulation between three cavitys 201 realizes the protection to device to limit the flow velocity of liquid.
Further, it since the use of device needs to carry out under air-proof condition, if blow-by, is easy in screw pump
There is the aerial drainage of liquid when recovering the oil in lifting, and causes device to damage, therefore, is arranged first between sliding sleeve 3 and first annular groove
Sealing ring 6, wherein the quantity of the first sealing ring 6 can be multiple, it is preferable that the quantity of the first sealing ring 6 is two, is used for
Seal sliding sleeve 3 and valve body 2, prevent liquid in lifting process by the gap aerial drainage between valve body 2 and sliding sleeve 3.
Similarly, the second sealing ring 7 is set between sliding sleeve 3 and the inner wall of ontology 1, wherein the quantity of the second sealing ring 7
It can be multiple, it is preferable that the quantity of the second sealing ring 7 is two, for sealing sliding sleeve 3 and ontology 1, prevents liquid in draining
Or pass through the gap aerial drainage between sliding sleeve 3 and ontology 1 in lifting process.
In specifically application process, can by the screw rod pump activation device of the embodiment of the present invention, upper end and screw rod horse
Up to connection, the lower end of screw rod pump activation device is connect with screw pump.Wherein, screw pump is hollow rotor screw pump, sleeve rotor
Screw pump is connected to the oil discharge passage 203 of screw rod pump activation device, that is to say, that the internal rotor of screw pump is hollow, screw pump
The inner space of rotor be connected to oil discharge passage 203, allow liquid to flow through screw pump, and continue to flow downwardly into screw rod
In the oil pipe for pumping lower end.
It should be noted that screw motor rise driving effect as screw pump, also include stator and rotor, pass through to
High voltage power liquid, the rotor rotation of screw motor are injected in screw motor, rotor can drive screw rod pump activation device to rotate, into
And the rotor of screw pump is driven to rotate, realize that the lifting of screw pump is recovered the oil.
In the actual use process, after connection installs screw pump hoisting system on the ground, by it in company with tubing string one
It rises and transfers in oil well.
When screw pump, which lifts, to recover the oil, as shown in figure 3, in the case where working normally the driving effect of screw motor of torque, spiral shell
Bar pump is moved upwards by the mating reaction of stator and rotor, lifting liquid, the lower end of sliding sleeve 3 due to the thrust by liquid,
Uplink slides into the top of first annular groove, and blocks the first radial hole 2031 of oil discharge passage 203, and liquid is from device
Outside is flowed into the lower chamber 2012 of valve body 2 through the second radial hole 2041 of oil inlet passage 204, when the buoyancy of sphere 4 is greater than
When the gravity of sphere 4 itself, sphere 4 is detached from step, and liquid continues up around sphere 4, by upper cavity 2011 and hole
Plate 5 enters in the first cavity 101, then continues up and lifted, mating finally by ground until being given rise to ground
Normal power injection-extraction pump suction and common petroleum pipeline transmission, realize the lifting oil producing operation of screw pump.
When screw pump termination of pumping aerial drainage, as shown in Figure 1, liquid passes through orifice plate 5 from the first cavity 101 of ontology 1, it is flowed into
In upper cavity 2011, pushes sphere 4 to set on step, block lower chamber 2012.At this point, the effect of the thrust in liquid
Under, liquid is flowed by third radial hole 205 into annular space 202, since the pressure of 3 upper end of sliding sleeve is greater than 3 lower end of sliding sleeve
Pressure so that 3 downlink of sliding sleeve slides into the lower part of first annular groove, and block the second radial hole of oil inlet passage 204
2041, therefore, liquid is flowed into oil discharge passage 203, finally from fuel-displaced by annular space 202 through the first radial hole 2031
Channel 203 flows through the inside of screw pump sleeve rotor, is lowered into the oil pipe of screw pump lower end, so that the upper end of screw pump
The fluid column retained is unloaded.
It should be noted that since the fluid column that screw pump upper end retains is unloaded, so, screw pump in restarting,
The injection-extraction pump and common petroleum pipeline that the screw motor, normal power that work normally torque need to be only equipped with can be realized, therefore,
Adaptability of the screw pump in well is improved, popularization and use of the screw pump in oilfield development process are conducive to.
The above is merely for convenience of it will be understood by those skilled in the art that technical solution of the present invention, not to limit
The present invention.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection scope of invention.
Claims (8)
1. a kind of screw rod pump activation device, which is characterized in that described device includes: ontology (1), valve body (2) and sliding sleeve (3),
In,
The inside of the ontology (1) is formed with the first cavity (101) and the second cavity (102) being connected to up and down, the valve body (2)
In second cavity (102)；
Annular space (202), institute are formed between the valve body (2) ontology (1) corresponding with the second cavity (102)
The upper end for stating valve body (2) offers the third cavity (201) being connected to first cavity (101)；The valve body (2) offers
Oil discharge passage (203), the external of the oil discharge passage (203) and described device be connected tos, and by the annular space (202) and
Third cavity (201) connection；The valve body (2) is also provided with oil inlet passage (204), oil inlet passage (204) connection
The outside of described device and the third cavity (201)；
The sliding sleeve (3) can slide up and down to setting in the annular space (202), and the sliding sleeve (3) is used for upward sliding
It blocks the oil discharge passage (203) or slide downward blocks the oil inlet passage (204).
2. screw rod pump activation device according to claim 1, which is characterized in that the oil discharge passage (203) includes first
Radial hole (2031) and axial hole (2032), first radial hole (2031) are connected to the axial hole (2032) and the annular
Space (202).
3. screw rod pump activation device according to claim 2, which is characterized in that the oil inlet passage (204) includes second
Radial hole (2041), the position height of second radial hole (2041) in the vertical direction are lower than first radial hole
(2031) position height in the vertical direction, and second radial hole (2041) is not connected to the axial hole (2032).
4. screw rod pump activation device according to claim 1, which is characterized in that the third cavity (201) includes connection
Upper cavity (2011) and lower chamber (2012), the internal diameter of the upper cavity (2011) is greater than the interior of the lower chamber (2012)
Diameter, and the sphere (4) for being suitable for blocking the lower chamber (2012) is provided in the upper cavity (2011).
5. screw rod pump activation device according to claim 4, which is characterized in that the upper cavity (2011) passes through the ring
Shape space (202) is connected to the oil discharge passage (203)；The lower chamber (2012) is connected to the oil inlet passage (204).
6. screw rod pump activation device according to claim 5, which is characterized in that in the corresponding institute of the upper cavity (2011)
It states and is offered on the wall of valve body (2) third radial hole (205), the third radial hole (205) is connected to the annular space (202)
With the upper cavity (2011).
7. screw rod pump activation device according to claim 1, which is characterized in that offered in the lower end of the valve body (2)
First annular groove, the sliding sleeve (3) are slidably sleeved in the first annular groove.
8. screw rod pump activation device according to claim 1, which is characterized in that the valve body (2) further includes orifice plate (5),
The orifice plate (5) is arranged in the junction of first cavity (101) and the third cavity (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710805346.2A CN109469462B (en) | 2017-09-08 | 2017-09-08 | Screw pump starting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710805346.2A CN109469462B (en) | 2017-09-08 | 2017-09-08 | Screw pump starting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109469462A true CN109469462A (en) | 2019-03-15 |
| CN109469462B CN109469462B (en) | 2021-08-03 |
Family
ID=65658382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710805346.2A Active CN109469462B (en) | 2017-09-08 | 2017-09-08 | Screw pump starting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109469462B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927001A (en) * | 2012-11-02 | 2013-02-13 | 中国石油天然气股份有限公司 | Method for applying speed regulating system of switched reluctance motor to screw pump oil extraction |
| CN104019030A (en) * | 2014-06-20 | 2014-09-03 | 西南石油大学 | Discharging device of reverse-circulating liquid-driving oil extraction screw pump |
| CN205089280U (en) * | 2015-11-04 | 2016-03-16 | 杨庆军 | Automatic pressure relief device of oil well casing gas |
| US9458706B2 (en) * | 2013-07-26 | 2016-10-04 | John Splawn Page, Jr. | Method of lifting oil from a well |
| CN107152263A (en) * | 2017-07-12 | 2017-09-12 | 天津大港油田石油工程研究院钻采技术开发有限公司 | It is a kind of can No Load Start layering with periwinkle collecting bar lift tubing string |
-
2017
- 2017-09-08 CN CN201710805346.2A patent/CN109469462B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927001A (en) * | 2012-11-02 | 2013-02-13 | 中国石油天然气股份有限公司 | Method for applying speed regulating system of switched reluctance motor to screw pump oil extraction |
| US9458706B2 (en) * | 2013-07-26 | 2016-10-04 | John Splawn Page, Jr. | Method of lifting oil from a well |
| CN104019030A (en) * | 2014-06-20 | 2014-09-03 | 西南石油大学 | Discharging device of reverse-circulating liquid-driving oil extraction screw pump |
| CN205089280U (en) * | 2015-11-04 | 2016-03-16 | 杨庆军 | Automatic pressure relief device of oil well casing gas |
| CN107152263A (en) * | 2017-07-12 | 2017-09-12 | 天津大港油田石油工程研究院钻采技术开发有限公司 | It is a kind of can No Load Start layering with periwinkle collecting bar lift tubing string |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109469462B (en) | 2021-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201705249U (en) | Continuous jet flow blockage removing pipe column for horizontal well | |
| CN204113131U (en) | Screw pump tubular column for coal bed gas well | |
| CN204299842U (en) | A kind of standing valve offset suction pump | |
| CN201554704U (en) | Jet pump | |
| CN113790040A (en) | Oil extraction method of jet pump of series-connection type ultra-deep oil well | |
| CN209179726U (en) | One kind can sand washing bridge plug | |
| CN204344091U (en) | A kind of reacting cycle liquid drives oil-extracting screw pump | |
| CN115977588A (en) | High-gas-content well lifting pipe column | |
| CN207297303U (en) | One kind has bar lifting whole process to go out liquid oil well pump | |
| CN217381054U (en) | Novel single-tube jet pump device | |
| CN109469462A (en) | Screw pump starting device | |
| CN102562681A (en) | Hydraulic jet pump capable of realizing reverse-circulating production and reverse-circulating lifting of pump core | |
| CN214196275U (en) | Concentric double-tube jet pump with novel sealing plug structure | |
| CN202955049U (en) | Double-barreled water jet pump | |
| CN209875142U (en) | Oil-water separation system under pumping and production-injection integrated pump well | |
| CN203783533U (en) | Oil production system of waterpower oil-submerged pump | |
| CN202531415U (en) | Phi 25mm small displacement solid plunger oil-well pump | |
| CN109469628A (en) | Hydraulic drive screw pump lifting device capable of being started in no-load mode | |
| CN206458443U (en) | Oil well, which recovers the oil, lifts high temperature gas injection valve | |
| CN216588553U (en) | Integrated tubular column for gas injection and dilution production of heavy oil well | |
| CN203516028U (en) | Fire-driving oil-well pump | |
| CN112681995B (en) | Adjustable mixer, no-lifting drilling gas-lift reverse circulation drilling tool and drilling method | |
| CN111021999B (en) | Liquid drainage and gas production integrated pipe column | |
| CN203161139U (en) | Washing valve and oil pumping well | |
| CN118008217B (en) | Three-stage serial pump deep pumping and drainage device and use method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |