CN203783531U - Device with function of not pressing oil layer during hot washing of mechanical oil production well - Google Patents
Device with function of not pressing oil layer during hot washing of mechanical oil production well Download PDFInfo
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- CN203783531U CN203783531U CN201420067774.1U CN201420067774U CN203783531U CN 203783531 U CN203783531 U CN 203783531U CN 201420067774 U CN201420067774 U CN 201420067774U CN 203783531 U CN203783531 U CN 203783531U
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- central tube
- overcoat
- seal
- hot washing
- supporter
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Abstract
The utility model discloses a device with a function of not pressing an oil layer during hot washing of a mechanical oil production well. The device comprises an upper joint, a center tube, an air cavity component, a moving component, a compression ring, a packing cup, a third support body, a connecting jacket and a lower joint, wherein the upper joint is in threaded connection with the upper end of the center tube; the top end of the air cavity component is connected with the upper joint through a locking pin; the air cavity component, the moving component, the compression ring, the packing cup, the third support body, the connecting jacket and the lower joint are sequentially arranged from top to bottom outside the center tube below the upper joint. The device has the beneficial effects that during hot washing of the well, a flooding liquid level in the well rises, after the liquid level reaches an appointed standard, the pressure generated by the raised liquid level can press an air cavity, the locking pin is pulled to be broken, the moving component is pushed to slide downwards, the packing cup is pressed to expand and seal an annular space, the pollution to the oil layer after washing fluid is injected into stratum is avoided, and the yield is improved; special operation is not required and the device is conveniently applied on the spot.
Description
Technical field
The utility model relates to a kind of oil extraction in oil field process tool, specifically a kind of device of force feed layer function not while having well hot washing.
Background technology
Hot clean-up well is the effective hot-washing wax remover means of one that oil field machine-pumped oil well generally adopts at present.But after well hot washing, because flushing fluid is understood some and is entered in oil reservoir, this part flushing fluid can pollute oil reservoir, although can be plucked out of in subsequent production process, but can cause injury to a certain degree to oil reservoir, also cause the oil water mixture water content of extraction in certain hour to rise simultaneously, affect oil well output.
Summary of the invention
The purpose of this utility model is to provide a kind of device of force feed layer function not while having well hot washing, after solving oil field hot clean-up well, flushing fluid enters oil reservoir, cause the problem to oil layer pollution and water content rising in a short time, further improve oil recovery effect for oil field, technical support is provided.
The technical solution of the utility model is achieved in the following ways: a kind of device of force feed layer function not while having well hot washing, it is characterized in that, comprise top connection, central tube, air chamber assembly, moving assembly, pressure ring, leather cup, the 3rd supporter, connect overcoat and lower contact, the upper end of top connection and central tube is threaded connection, and the top of air chamber assembly is connected with top connection by safetied pin; Central tube below top connection is equipped with successively from top to bottom air chamber assembly, moving assembly, pressure ring, leather cup, the 3rd supporter outward, connects overcoat and lower contact.
Described air chamber assembly comprises the first connecting ring, the first seal, overcoat and the second seal, central tube outside below described top connection is set with the first connecting ring, the first seal and overcoat successively, the top of overcoat is connected with the outward flange of top connection bottom with described safetied pin, and the inner side of outer set upper side is coated on the outside of the first connecting ring and the first seal; The second seal and the second connecting ring are housed successively between the inner side of overcoat lower end and the outside of central tube, and the second connecting ring is threaded connection on central tube; Between central tube, overcoat, the first seal and the second seal, form an air chamber.
Described moving assembly comprises upper joint sleeve, spring, middle connector, holding screw and the first supporter, and upper joint sleeve, spring, middle connector are enclosed within on central tube successively; By spring-compressed, and middle connector is fixed on central tube with a holding screw; The lower end of the upper end of upper joint sleeve and overcoat is threaded connection, the first supporter is enclosed within on central tube, the first supporter upper end is threaded with the lower end of upper joint sleeve.
The top of this described moving assembly is connected with the lower end of air chamber assembly by transit joint.
Described moving assembly arranges two covers.
The beneficial effects of the utility model are: when machine-pumped oil well is normally worked, this device is not worked, in the time carrying out hot clean-up well, in well, flooding liquid level rises, reach after specified value, the pressure that liquid level produces can be oppressed by central tube, overcoat, the air chamber that the first seal and the second seal form, safetied pin is pulled off, promote the first connecting ring, the first seal, overcoat, transit joint, upper joint sleeve, the first supporter, lower joint sleeve, the second supporter, pressure ring down sliding, compressing leather cup expands, seal ring set space, now, flushing fluid enters in pump through oil sets annular space and device upper end screen casing, and quilt is given rise to ground, avoid flushing fluid to be injected into the pollution that cause oil reservoir on stratum, improve output, without special operational, on-the-spot application is convenient.
Brief description of the drawings
Fig. 1 is the axial sectional view of general structure of the present utility model.
Detailed description of the invention
Referring to Fig. 1, the utility model is a kind of while the having well hot washing device of force feed layer function not, comprises top connection 1, safetied pin 2, the first connecting ring 3, the first seal 4, overcoat 5, central tube 6, the second seal 7, the second connecting ring 8, transit joint 9, upper joint sleeve 10, spring 11, middle connector 12, holding screw 13, the first supporter 14, lower joint sleeve 15, the second supporter 16, pressure ring 17, leather cup 18, the 3rd supporter 19, connects overcoat 20, lower contact 21 forms.The outside, upper end of the inner side of top connection 1 and central tube 6 is threaded connection, central tube 6 outsides below top connection 1 successively (from top to bottom, lower same) suit the first connecting ring 3, the first seal 4 and overcoat 5, the top of overcoat 5 is connected with the outward flange of top connection 1 bottom with safetied pin 2, and the inner side of overcoat 5 upper ends is coated on the outside of the first connecting ring 3 and the first seal 4.The second seal 7 and the second connecting ring 8 are housed successively between the inner side of overcoat 5 lower ends and the outside of central tube 6, the second connecting ring 8 is threaded connection on central tube 6, between central tube 6, overcoat 5, the first seal 4 and the second seal 7, forms an air chamber 22.Then transit joint 9, upper joint sleeve 10, spring 11, middle connector 12 are enclosed within on central tube 6 successively.Spring 11 is compressed and use a holding screw 13 that middle connector 12 is fixed on central tube 6.The lower end of the upper end of upper joint sleeve 10 and overcoat 5 is threaded connection, the first supporter 14 is enclosed within on central tube 6, the first supporter 14 upper ends are threaded with the lower end of upper joint sleeve 10.Second spring 11, second middle connector 12 are enclosed within successively on central tube 6, and it is the same that Compress Spring 11 is also installed second holding screw 13(connected mode at assigned address) after, pack lower joint sleeve 15 into.Lower joint sleeve 15 upper ends are threaded with the first supporter 14 lower ends, the second supporter 16 is inserted in to central tube 6, the second supporter 16 upper ends and is threaded with lower joint sleeve 14 lower ends.Then pressure ring 17, leather cup 18, the 3rd supporter 19 are enclosed within on central tube 6 successively, connection overcoat 20 upper ends are threaded with the 3rd supporter 19; The inner side of connection overcoat 20, the outside of central tube 6 are threaded with the interior outside of lower contact 21 respectively.
This device is connected to the lower end of oil extraction pump and screen casing in use, and in this device lower contact 21, connects one way valve (existing product), and object is that heat prevents that hot washing lotion from missing in device central tube while washing.When machine-pumped oil well is normally worked, the position of pump certain depth (submergence) below liquid level, the pressure-acting that now fluid column produces is on the air chamber 22 being made up of central tube 6, overcoat 5, the first seal 4 and the second seal 7, but the power producing due to fluid column is now less than the precompression of spring 11, and overcoat 5 parts such as grade are motionless; Not by compression, its external diameter is constant for leather cup 18.In the time that machine-pumped oil well wax deposition seriously needs hot clean-up well wax removal, due to the injection of hot washing lotion, down-hole liquid level will rise gradually until well head, the effect of washing pump in ground level heat, and the heat that forms 2-3MPa is washed pressure by well head.Pressure when now acting on pressure on described air chamber 22 and being far longer than machine-pumped oil well and normally working, overcoat 5 is moved down and safetied pin 2 is broken, promote the first connecting ring 3, the first seal 4, overcoat 5, transit joint 9, upper joint sleeve 10, the first supporter 14, lower joint sleeve 15, the second supporter 16, pressure ring 17 down slidings, Compress Spring 11 and leather cup 18, leather cup 18 diameters are become to be close to greatly on internal surface of sleeve pipe, and by leather cup 18, under fluid course isolate completely, hot clean-up well liquid cannot continue to oily intrastratal flow through the annular space at leather cup 18 places, hot clean-up well liquid in central tube 6 is due to the effect of one way valve in lower contact 21, cannot flow downward, can only be through the above oil sets annular space of leather cup 18, screen casing and entering in pump, and rise to ground by oil pipe, under flushing fluid thermodynamic activity, by knot, the wax in oil pipe is thoroughly disposed.
After well hot washing completes, in the effect of down-hole pump, liquid level will be displaced downwardly to the position of initial liquid level gradually from well head, meanwhile, when the power producing when liquid level in well is less than the elastic force of spring 11, under the effect of spring force, leather cup 18 reclaims, and machine-pumped oil well recovers normal work.
Claims (5)
1. the device of force feed layer function not while thering is well hot washing, it is characterized in that, comprise top connection, central tube, air chamber assembly, moving assembly, pressure ring, leather cup, the 3rd supporter, connect overcoat and lower contact, the upper end of top connection and central tube is threaded connection, and the top of air chamber assembly is connected with top connection by safetied pin; Central tube below top connection is equipped with successively from top to bottom air chamber assembly, moving assembly, pressure ring, leather cup, the 3rd supporter outward, connects overcoat and lower contact.
2. the device of force feed layer function not while thering is well hot washing according to claim 1, it is characterized in that, described air chamber assembly comprises the first connecting ring, the first seal, overcoat and the second seal, central tube outside below described top connection is set with the first connecting ring, the first seal and overcoat successively, the top of overcoat is connected with the outward flange of top connection bottom with described safetied pin, and the inner side of outer set upper side is coated on the outside of the first connecting ring and the first seal; The second seal and the second connecting ring are housed successively between the inner side of overcoat lower end and the outside of central tube, and the second connecting ring is threaded connection on central tube; Between central tube, overcoat, the first seal and the second seal, form an air chamber.
3. the device of force feed layer function not while thering is well hot washing according to claim 1, it is characterized in that, described moving assembly comprises upper joint sleeve, spring, middle connector, holding screw and the first supporter, and upper joint sleeve, spring, middle connector are enclosed within on central tube successively; By spring-compressed, and middle connector is fixed on central tube with a holding screw; The lower end of the upper end of upper joint sleeve and overcoat is threaded connection, the first supporter is enclosed within on central tube, the first supporter upper end is threaded with the lower end of upper joint sleeve.
4. the device of force feed layer function not while having well hot washing according to claim 3, is characterized in that, the top of this described moving assembly is connected with the lower end of air chamber assembly by transit joint.
5. the device of force feed layer function not while having well hot washing according to claim 3, is characterized in that, described moving assembly arranges two covers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420067774.1U CN203783531U (en) | 2014-02-17 | 2014-02-17 | Device with function of not pressing oil layer during hot washing of mechanical oil production well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420067774.1U CN203783531U (en) | 2014-02-17 | 2014-02-17 | Device with function of not pressing oil layer during hot washing of mechanical oil production well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203783531U true CN203783531U (en) | 2014-08-20 |
Family
ID=51319731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420067774.1U Expired - Fee Related CN203783531U (en) | 2014-02-17 | 2014-02-17 | Device with function of not pressing oil layer during hot washing of mechanical oil production well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203783531U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821479A (en) * | 2014-02-17 | 2014-05-28 | 康庆刚 | Device not pressing oil reservoir during thermal washing of mechanical producing well |
-
2014
- 2014-02-17 CN CN201420067774.1U patent/CN203783531U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821479A (en) * | 2014-02-17 | 2014-05-28 | 康庆刚 | Device not pressing oil reservoir during thermal washing of mechanical producing well |
| CN103821479B (en) * | 2014-02-17 | 2016-05-18 | 康庆刚 | The device of force feed layer function not while thering is well hot washing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20160217 |