CN215565803U - Anti-pollution high-efficient wax tubular column of paraffin removal is washed to pumping well heat - Google Patents
Anti-pollution high-efficient wax tubular column of paraffin removal is washed to pumping well heat Download PDFInfo
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- CN215565803U CN215565803U CN202121887631.1U CN202121887631U CN215565803U CN 215565803 U CN215565803 U CN 215565803U CN 202121887631 U CN202121887631 U CN 202121887631U CN 215565803 U CN215565803 U CN 215565803U
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Abstract
The utility model discloses an anti-pollution high-efficiency thermal-washing paraffin removal pipe column for an oil pumping well; the inner sleeve is used for connecting with a wellhead; the oil pipe is arranged in the inner sleeve and is used for transporting a medium for an oil layer; the oil well pump is arranged at the lower end of the oil pipe; the method comprises the following steps: the elastic telescopic deformation compensator is arranged at the lower end of the oil well pump and can reduce the stress of a pipe wall and the acting force on a valve or a bracket structure; the double-layer pipe packer is arranged at the lower end of the elastic telescopic deformation compensator and adopts a setting mode of rotating an oil pipe; and the large-inclination hydraulic check valve is arranged at the lower end of the double-layer pipe packer. This wax tubular column is washed to anti-pollution high-efficient heat of pumping well adopts the double-barrelled packer to reduce the effort through cooperation elastic expansion deformation compensator, makes the double-barrelled packer cooperation pressure relief mechanism reduce the deblocking power simultaneously, improves the flexibility of using through the inside component of taking certainly that adopts big inclination hydraulic check valve, adopts the interlayer to reach electrostatic protection's effect.
Description
Technical Field
The utility model relates to the technical field of anti-pollution efficient hot washing paraffin removal pipe columns, in particular to an anti-pollution efficient hot washing paraffin removal pipe column for an oil pumping well.
Background
The existing wax washing measures include mechanical wax removal, wax scraping sheets or wax removing drill bits for self-blowing or gas-lift wells, wax scraper for pumping wells, periodic wax removal, and anti-pollution efficient hot washing wax removal, which is to wash the wells circularly by hot oil or other heat carriers to melt the wax and carry the wax out of the wells. The method can be used for oil wells of various oil recovery methods. The wax deposition of the stratum near the bottom of the well can be removed by a method of squeezing hot oil or solvent;
this prior art solution also exists when in use:
1. the common anti-pollution hot washing pipe column has the defects of poor sealing of a double-layer pipe packer, short service life and easy blockage when the pipe column is lifted;
2. the check valve can not be opened when the pipe column is in a horizontal state;
3. the oil pipe has no antistatic function;
improvements are needed to address the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an anti-pollution efficient hot-washing paraffin removal pipe column for an oil pumping well, and aims to solve the problems that a common anti-pollution hot-washing pipe column in the market is poor in double-layer pipe packer sealing, short in service life, easy to clamp when the pipe column is lifted, a check valve cannot be opened when the pipe column is in an inclined state, and the oil pipe does not have an anti-static function.
In order to achieve the purpose, the utility model provides the following technical scheme: an anti-pollution high-efficiency thermal-washing paraffin removal pipe column of an oil pumping well;
the inner sleeve is used for connecting with a wellhead;
the oil pipe is arranged in the inner sleeve and is used for transporting a medium for an oil layer;
the oil well pump is arranged at the lower end of the oil pipe;
the method comprises the following steps:
the elastic telescopic deformation compensator is arranged at the lower end of the oil well pump and can reduce the stress of a pipe wall and the acting force on a valve or a bracket structure;
the double-layer pipe packer is arranged at the lower end of the elastic telescopic deformation compensator and adopts a setting mode of rotating an oil pipe;
and the large-inclination hydraulic check valve is arranged at the lower end of the double-layer pipe packer and is used for preventing produced liquid from flowing in the opposite direction.
Wherein, the inside of the inner sleeve is provided with a limiting and righting mechanism.
Preferably, the inner sleeve further comprises:
the interlayer is connected to one side of the outer wall of the inner sleeve and is made of static conductive materials, static dissipative materials and synthetic rubber, the surface layer of the interlayer is a static dissipative layer with the thickness of about 0.3-0.5mm, and the bottom layer is a conductive layer with the thickness of about 1.5-1.7 mm;
and the outer sleeve is connected to one side of the interlayer.
Preferably, the elastic telescopic deformation compensator is provided with a flushing fluid return inlet and acts on the thermal extension of the compensation pipe column, the elastic compensation distance of the elastic telescopic deformation compensator is 1000mm, and the double-layer pipe packer can be matched with the elastic telescopic deformation compensator when in setting, so that the pipe column creeping force generated in the oil pumping process of the oil well pump can not act on the double-layer pipe packer.
Preferably, install pressure release mechanism on the double tube packer, and pressure release mechanism acts on the packing pipeline in medium pressure under the settlement pressure to pressure release mechanism's operating pressure is 35Mpa, can cooperate pressure release mechanism during the double tube packer deblocking, opens the relief valve, can dismantle the liquid column load of oil jacket annular space, is convenient for improve double tube packer's life.
Preferably, the opening and closing element in the large-inclination hydraulic check valve is a fixed valve assembly of the oil extraction oil well pump, the large-inclination hydraulic check valve is a one-way valve, the parameters of the large-inclination hydraulic check valve are 80mm in outer diameter and 290mm in length, the large-inclination hydraulic check valve is suitable for a 4-inch casing, and the function of the element of the large-inclination hydraulic check valve can improve the flexibility of the large-inclination hydraulic check valve when the production fluid and the well flushing fluid are opened and closed.
Compared with the prior art, the utility model has the beneficial effects that: this wax tubular column is washed to anti-pollution high-efficient heat of pumping well adopts the double-barrelled packer to reduce the effort through cooperation elastic expansion deformation compensator, makes the double-barrelled packer cooperation pressure relief mechanism reduce the deblocking power simultaneously, improves the flexibility of using through the inside component of taking certainly that adopts big inclination hydraulic check valve, adopts the interlayer to reach electrostatic protection's effect.
1. Can cooperate the flexible deformation compensator of elasticity when being provided with double-barrelled packer setting, enable the tubular column creep power that the oil-well pump oil pumping in-process produced and do not act on double-barrelled packer, can cooperate pressure relief mechanism when double-barrelled packer deblocking, open the relief valve, can dismantle the liquid column load of oil jacket annular space, be convenient for improve double-barrelled packer's life, reach easy deblocking simultaneously, do not receive the function of card.
2. When the produced liquid flows in a specified direction, the valve clack is opened under the action of the produced liquid force, and when the produced liquid flows reversely, the valve clack is closed tightly with the sealing surface of the valve seat due to the self-weight of the valve clack and the action of the reverse force of the medium, so that the aim of preventing the produced liquid from flowing reversely is fulfilled.
3. The electrostatic protection device is provided with an electrostatic dissipation layer with an interlayer surface layer of about 0.3-0.5mm in thickness and a conducting layer with a bottom layer of about 1.5-1.7mm in thickness, and the outer sleeve and the inner sleeve are spaced so that the electrostatic sensitive device is not interfered by electrostatic discharge phenomena such as friction electrification and the like, thereby achieving the effect of electrostatic protection and being convenient for preventing static from generating.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is an enlarged cross-sectional view of a dual-tube packer of the present invention;
fig. 3 is a schematic top view of the inner and outer sleeves of the present invention.
In the figure: 1. an inner sleeve; 2. an oil pipe; 3. an oil well pump; 4. an elastic expansion deformation compensator; 5. a double-pipe packer; 6. a large-inclination hydraulic check valve; 7. an interlayer; 8. an outer sleeve; 9. a well flushing fluid return inlet; 10. a pressure relief mechanism.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: an anti-pollution high-efficiency thermal-washing paraffin removal pipe column of an oil pumping well;
the inner sleeve 1, the inner sleeve 1 acts on and connects with well head;
the oil pipe 2 is arranged in the inner sleeve 1 and is used for transporting a medium in an oil layer;
the oil well pump 3 is arranged at the lower end of the oil pipe 2;
the method comprises the following steps:
the elastic expansion deformation compensator 4 is arranged at the lower end of the oil well pump 3 and can reduce the stress of the pipe wall and the acting force on a valve or a bracket structure;
the double-layer pipe packer 5 is arranged at the lower end of the elastic telescopic deformation compensator 4 and adopts a setting mode of rotating the oil pipe 2;
and the large-inclination hydraulic check valve 6 is arranged at the lower end of the double-layer pipe packer 5 and is used for preventing produced liquid from flowing in the opposite direction.
Be provided with double-barrelled packer 5 for purpose-built high strength, low rigidity composite seal, the setting power is low, when the flushing fluid reaches elastic deformation compensator 4 through flushing fluid turn back entry 9, double-barrelled packer 5 can cooperate elastic deformation compensator 4 to sit and seal, the tubular column creep power that enables 3 oil pumping in-process of oil-well pump production does not act on double-barrelled packer 5, ensure that double-barrelled packer 5 is sealed good longe-lived, can cooperate pressure release mechanism 10 when the 5 deblocking of double-barrelled packer, open the relief valve, can dismantle the liquid column load of oil jacket annular space, it is low to reduce the deblocking power, be convenient for improve double-barrelled packer 5's life, reach easy deblocking simultaneously, do not receive the function of card.
When the produced liquid flows in a specified direction, the valve clack is opened under the action of the produced liquid force, when the produced liquid flows reversely, the valve clack is closed tightly with the sealing surface of the valve seat under the action of the dead weight of the valve clack and the reverse force of a medium, so that the aim of preventing the produced liquid from flowing reversely is fulfilled, the function of the large-inclination hydraulic check valve 6 with elements can improve the flexibility of the large-inclination hydraulic check valve 6 when the produced liquid and the well washing liquid are opened and closed, and meanwhile, under the condition that the pipe column is in a horizontal state, the large-inclination hydraulic check valve 6 can still open and close the large-inclination hydraulic check valve 6 by matching with a limiting righting mechanism, so that the large-inclination hydraulic check valve is convenient to use flexibly.
The electrostatic protection device is provided with an electrostatic dissipation layer with the surface layer of an interlayer 7 being about 0.3-0.5mm thick and a conductive layer with the bottom layer being about 1.5-1.7mm thick, and the outer sleeve 8 and the inner sleeve 1 are spaced apart from each other so that an electrostatic sensitive device is not interfered by electrostatic discharge phenomena such as friction electrification and the like, and the electrostatic protection effect is achieved, wherein the interlayer 7 has good characteristics of acid resistance, alkali resistance and chemical flux resistance through the interlayer, and is convenient for preventing static electricity.
The working principle is as follows: when the anti-pollution high-efficiency hot-washing paraffin removal pipe column for the pumping well is used, firstly, a double-layer pipe packer 5 is connected to the lower end of an elastic telescopic deformation compensator 4, hot washing liquid in an oil sleeve annular space is prevented from entering an oil layer after setting, a large-inclination hydraulic check valve 6 is connected to the bottommost part of a tail pipe, liquid in the tail pipe is prevented from entering the oil layer, the double-layer pipe packer 5 is used in the oil pumping process of the elastic telescopic deformation compensator 4 and is not influenced by the wriggling of an oil pipe, 1-5 tail pipes can be connected to the lower part of the double-layer pipe packer 5, the sealing part of the double-layer pipe packer 5 is kept in a compression sealing state by the weight of the tail pipe, and the content which is not described in detail in the description belongs to the prior art known by professional technicians in the field.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.
Claims (5)
1. An anti-pollution high-efficiency thermal-washing paraffin removal pipe column for an oil pumping well,
the inner sleeve is used for connecting with a wellhead;
the oil pipe is arranged in the inner sleeve and is used for transporting a medium for an oil layer;
the oil well pump is arranged at the lower end of the oil pipe;
it is characterized by comprising:
the elastic telescopic deformation compensator is arranged at the lower end of the oil well pump and can reduce the stress of a pipe wall and the acting force on a valve or a bracket structure;
the double-layer pipe packer is arranged at the lower end of the elastic telescopic deformation compensator and adopts a setting mode of rotating an oil pipe;
the large-inclination hydraulic check valve is arranged at the lower end of the double-layer pipe packer and is used for preventing produced liquid from flowing in the opposite direction,
wherein, the inside of the inner sleeve is provided with a limiting and righting mechanism.
2. The anti-pollution efficient hot-washing paraffin removal pipe column for the pumping well according to claim 1, characterized in that: the inner sleeve also comprises:
the interlayer is connected to one side of the outer wall of the inner sleeve and is made of static conductive materials, static dissipative materials and synthetic rubber;
and the outer sleeve is connected to one side of the interlayer.
3. The anti-pollution efficient hot-washing paraffin removal pipe column for the pumping well according to claim 1, characterized in that: the elastic telescopic deformation compensator is provided with a flushing fluid return inlet, acts on the thermal extension of the compensation pipe column, and has an elastic compensation distance of 1000 mm.
4. The anti-pollution efficient hot-washing paraffin removal pipe column for the pumping well according to claim 1, characterized in that: the double-layer pipe packer is provided with a pressure relief mechanism, the pressure relief mechanism acts on medium pressure in a packaging pipeline under set pressure, and the working pressure of the pressure relief mechanism is 35 Mpa.
5. The anti-pollution efficient hot-washing paraffin removal pipe column for the pumping well according to claim 1, characterized in that: the inside switching element of big inclination hydraulic check valve is by the fixed valve assembly of oil recovery oil-well pump, and big inclination hydraulic check valve is the check valve to big inclination hydraulic check valve's parameter is external diameter 80mm, and length 290mm, is applicable to 4 cun sleeve pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121887631.1U CN215565803U (en) | 2021-08-12 | 2021-08-12 | Anti-pollution high-efficient wax tubular column of paraffin removal is washed to pumping well heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121887631.1U CN215565803U (en) | 2021-08-12 | 2021-08-12 | Anti-pollution high-efficient wax tubular column of paraffin removal is washed to pumping well heat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215565803U true CN215565803U (en) | 2022-01-18 |
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ID=79835158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121887631.1U Active CN215565803U (en) | 2021-08-12 | 2021-08-12 | Anti-pollution high-efficient wax tubular column of paraffin removal is washed to pumping well heat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215565803U (en) |
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2021
- 2021-08-12 CN CN202121887631.1U patent/CN215565803U/en active Active
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