CN203626741U - Scale prevention sleeve used in cooperation with well flushing sliding sleeve - Google Patents
Scale prevention sleeve used in cooperation with well flushing sliding sleeve Download PDFInfo
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- CN203626741U CN203626741U CN201320825079.2U CN201320825079U CN203626741U CN 203626741 U CN203626741 U CN 203626741U CN 201320825079 U CN201320825079 U CN 201320825079U CN 203626741 U CN203626741 U CN 203626741U
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- sliding sleeve
- antiscale
- well
- submersible pump
- electric submersible
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Abstract
The utility model provides a scale prevention sleeve used in cooperation with a well flushing sliding sleeve. The scale prevention sleeve comprises an outer cylinder, a center shaft and scale prevention modules. The scale prevention modules are arranged on steps of the center shaft in a sleeved mode, distance sleeves are arranged between the scale prevention modules, and the scale prevention modules arranged on the center shaft are sleeved with the outer cylinder. The scale prevention sleeve used in cooperation with the well flushing sliding sleeve is characterized in that the center shaft is a hollow pipe body, the upper end of the center shaft is connected with the lower end of an upper joint, and the lower end of the center shaft is connected with the well flushing sliding sleeve; the upper end of the upper joint is connected with a bypass oil pipe of a Y-type electric submersible pump production pipe column, and the lower end of the upper joint is connected with the upper end of the center shaft; the upper end of a lower joint is connected with the lower portion of the well flushing sliding sleeve, and the lower end of the lower joint is connected with the Y-type electric submersible pump production pipe column in a positioning and sealed mode; the outer cylinder is put in a sleeved mode through the lower joint and located outside the center shaft and the well flushing sliding sleeve, the upper end of the outer cylinder is connected and fixed to the upper joint, and the lower portion of the outer cylinder and the lower joint are sealed and fixed. When the scale prevention sleeve is used in cooperation with the well flushing sliding sleeve in the Y-type electric submersible pump production pipe column, not only can scales of the Y-type electric submersible pump production pipe column be cleared away, but also test function implementation for production of the Y-type electric submersible pump production pipe column is not affected.
Description
Technical field
The utility model relates to oilfield production equipment, relates in particular to a kind of antiscale sleeve that prevents the cooperation well-flushing sliding sleeve use of Y type electric submersible pump producing tubular column fouling for offshore oilfield.
Background technology
At present, the mechanical scale-proof apparatus that offshore oilfield uses is to install the series connection of antiscale module metal solid slim axle, the centre of 6 to 10 uniform a large amount of apertures in surface additional separation sleeve to fix with one heart according to certain distance, outside is protected with metal sleeve, prevent that under scale-proof apparatus, fashionable antiscale module is collided with, affect antiscaling effect; Top and bottom all have joint and external metallization sleeve to be spirally connected fixing.This machinery scale-proof apparatus is because there is solid shafting at center, thus can only, by crude oil and stratum output water, if be arranged in Y type electric submersible pump producing tubular column, can realize the effect of antiscale, but logging tool cannot pass through, and cannot realize the enforcement of production logging.
The existing 2 kinds of schemes of the normal employing of electric submersible pump producing tubular column fouling that prevent: (1) special releasing tool carries in location sealing and mechanical scale-proof apparatus lower going-into-well, and location sealing is positioned top packer inside, and mechanical scale-proof apparatus is positioned location sealing bottom; Then be lowered to common closing and adopt electric submersible pump producing tubular column, when production, crude oil and stratum output water enter in the annular space of special releasing tool and oil well casing through mechanical scale-proof apparatus and location sealing, enter common closing by electric submersible pump and adopt electric submersible pump producing tubular column, given rise to production tube until ground by electric submersible pump.In manufacturing process, crude oil and stratum output water are in the time entering the annular space of special releasing tool and oil well casing by antiscale module, because the electronegativity of antiscale module material is lower than liquid phase intermediate ion, electron cloud in material is partial to fluid, between material and fluid, form electric field, produce polarity effect, change the electrochemical properties of stratum output water, promote hydrone to form micromolecular water group, positive and negative charge deviation of gravity center increases, produce water dipole, form firmly hydrated ion with calcium ions and magnesium ions in water, can stop dirty formation and deposition.(2) use crossover sub that mechanical scale-proof apparatus top and electric submersible pump kuppe bottom are spirally connected, be lowered to common closing and adopt electric submersible pump producing tubular column.When production, crude oil and stratum output water enter into the annular space of electric submersible pump and kuppe through mechanical scale-proof apparatus, enter common closing adopt electric submersible pump producing tubular column by electric submersible pump, are lifted to ground by electric submersible pump.In the time carrying out production logging, because test channel is stopped up by mechanical scale-proof apparatus and electric submersible pump, logging tool cannot be lowered into well logging position, therefore above-mentioned two kinds of technical schemes all can not be carried out production test, and need to change after original flow string, be more again lowered to Y type electric submersible pump producing tubular column, cause the loaded down with trivial details of production logging operation, and then affect oil well production efficiency, thereby have much room for improvement.
Utility model content
Main purpose of the present utility model is to overcome the above-mentioned shortcoming that existing product exists, and provide a kind of coordinate well-flushing sliding sleeve use antiscale sleeve, well-flushing sliding sleeve in this antiscale sleeve and Y type electric submersible pump producing tubular column is used in conjunction with both can remove the fouling of Y type electric submersible pump producing tubular column, do not affect again the enforcement of Y type electric submersible pump producing tubular column production test function, result of use ideal.
The purpose of this utility model is realized by following technical scheme.
The antiscale sleeve that the utility model coordinates well-flushing sliding sleeve to use, comprise urceolus, central axis and several antiscale module, this antiscale module is set on the integrated step of central axis, and is provided with separation sleeve between several antiscale module, and urceolus is set in the antiscale module-external that central axis arranges; It is characterized in that, described central axis is hollow tube, and its upper end is connected with top connection lower end, and lower end connects well-flushing sliding sleeve; Top connection upper end is connected with the bypass oil pipe of Y type electric submersible pump producing tubular column, and lower end is connected with central axis upper end; Lower contact upper end is connected with well-flushing sliding sleeve bottom, and lower end is connected with the location sealing of Y type electric submersible pump producing tubular column; Urceolus is inserted in by lower contact and is positioned at central axis and well-flushing sliding sleeve outside, and its upper end and top connection are connected and fixed, and bottom and lower contact sealing are fixing.
The antiscale sleeve that aforesaid cooperation well-flushing sliding sleeve uses, wherein, described top connection is hollow pipeline section, this pipeline section upper/lower terminal is respectively equipped with internal thread, pipeline section outer wall is provided with external screw thread, the bypass oil pipe of upper end internal thread and Y type electric submersible pump producing tubular column is spirally connected, lower end internal thread and central axis are spirally connected, outer wall external screw thread and urceolus upper end internal thread are spirally connected, and top connection outer side surface is arranged with two meniscate passages, this passage enters in the annular space of Y type electric submersible pump producing tubular column and oil well casing through antiscale module for crude oil and stratum output water; Described central axis is hollow tube, and this central axis upper end and bottom are provided with respectively external screw thread, and upper end external screw thread and top connection lower end internal thread are spirally connected, and bottom external screw thread and well-flushing sliding sleeve are spirally connected; Described urceolus is hollow tube, and this urceolus upper end is provided with internal thread, and bottom is provided with sealing surface and two pin holes; Upper end internal thread and top connection external thread bolt connection, the sealing ring arranging in lower seal face and lower contact groove forms sealing, make crude oil and stratum output water can only enter through antiscale module the annular space of Y type electric submersible pump producing tubular column and oil well casing, in pin hole to be screwed into pin, while preventing that lower contact and well-flushing sliding sleeve connecting thread from disconnecting, lower contact and urceolus are thrown off; Described lower contact is hollow pipeline section, its upper end internal thread and well-flushing sliding sleeve bottom are spirally connected, the location sealing of bottom external screw thread and Y type electric submersible pump producing tubular column is spirally connected, this lower contact upper end lateral wall is provided with two along pipeline section circumference and places the grooves of sealing rings, and lower contact lateral wall and urceolus pin hole correspondence position are provided with two cotter slots.
The antiscale sleeve that aforesaid cooperation well-flushing sliding sleeve uses, wherein, the upper end outer rim of described top connection and the lower end outer rim of lower contact are respectively equipped with chamfering, and the angle of this chamfering is 30 to 60 degree.
The antiscale sleeve that aforesaid cooperation well-flushing sliding sleeve uses, wherein, described central axis 4 internal diameters are identical with the internal diameter of Y type electric submersible pump producing tubular column bypass oil pipe.
The utility model coordinates the beneficial effect of the antiscale sleeve of well-flushing sliding sleeve use, this antiscale sleeve can be connected with the well-flushing sliding sleeve above the location sealing of Y type electric submersible pump producing tubular column (being down-hole string), and production test instrument can be lowered to by being in the central axis of hollow tube, realize in oil well production test technology is implemented and can solve the problem of Y type electric submersible pump producing tubular column fouling, effectively improve oil well production efficiency simultaneously.
Accompanying drawing explanation:
Fig. 1 is the antiscale sleeve overall structure schematic diagram that the utility model coordinates well-flushing sliding sleeve to use.
Major label description in figure: 1 top connection, 2 separation sleeves, 3 antiscale modules, 4 central axiss, 5 urceolus, 6 sealing rings, 7 pins, 8 lower contacts, 9 well-flushing sliding sleeves.
The specific embodiment
As shown in Figure 1, the antiscale sleeve that the utility model coordinates well-flushing sliding sleeve to use, comprise urceolus 5, central axis 4 and several antiscale module 3, this antiscale module 3 is set on the integrated step of central axis 4, and between several antiscale modules, be provided with separation sleeve 2, urceolus 5 is set in the antiscale module-external that central axis 4 arranges; Its improvements are, central axis 4 is hollow tube, and its upper end is connected with top connection 1 lower end, and lower end connects well-flushing sliding sleeve 9; Top connection 1 upper end is connected with the bypass oil pipe of Y type electric submersible pump producing tubular column, and lower end is connected with central axis 4 upper ends; Lower contact 8 upper ends are connected with well-flushing sliding sleeve 9 bottoms, and lower end is connected with the location sealing of Y type electric submersible pump producing tubular column; Urceolus 5 is inserted in by lower contact and is positioned at central axis and well-flushing sliding sleeve outside, and its upper end and top connection 1 are connected and fixed, and bottom and lower contact 8 sealings are fixing.
As shown in Figure 1, the antiscale sleeve that the utility model coordinates well-flushing sliding sleeve to use, wherein, top connection 1 is hollow pipeline section, on this pipeline section, lower two ends are respectively equipped with internal thread, pipeline section outer wall is provided with external screw thread, the bypass oil pipe of upper end internal thread and Y type electric submersible pump producing tubular column is spirally connected, lower end internal thread and central axis 4 are spirally connected, outer wall external screw thread and urceolus 5 upper end internal threads are spirally connected, and top connection 1 outer side surface is arranged with two meniscate passages, this passage enters in the annular space of Y type electric submersible pump producing tubular column and oil well casing through antiscale module for crude oil and stratum output water, central axis 4 is hollow tube, and this central axis upper end and bottom are provided with respectively external screw thread, and upper end external screw thread and top connection lower end internal thread are spirally connected, and bottom external screw thread and well-flushing sliding sleeve 9 are spirally connected, urceolus 5 is hollow tube, and this urceolus upper end is provided with internal thread, and bottom is provided with sealing surface and two pin holes, upper end internal thread and top connection external thread bolt connection, the sealing ring 6 arranging in lower seal face and lower contact 8 grooves forms sealing, make crude oil and stratum output water can only enter through antiscale module the annular space of Y type electric submersible pump producing tubular column and oil well casing, in pin hole to be screwed into pin 7, while preventing that lower contact and well-flushing sliding sleeve connecting thread from disconnecting, lower contact 8 is thrown off with urceolus 5, lower contact 8 is hollow pipeline section, its upper end internal thread and well-flushing sliding sleeve 9 bottoms are spirally connected, the location sealing of bottom external screw thread and Y type electric submersible pump producing tubular column is spirally connected, these lower contact 8 upper end lateral walls are provided with two along pipeline section circumference and place the grooves of sealing rings 6, and lower contact lateral wall and urceolus 5 pin hole correspondence positions are provided with two cotter slots.The upper end outer rim of this top connection 1 and the lower end outer rim of lower contact 8 are respectively equipped with chamfering, and the angle of this chamfering is 30 to 60 degree.These central axis 4 internal diameters are identical with the internal diameter of Y type electric submersible pump producing tubular column bypass oil pipe.
The utility model coordinates the assembling of the antiscale sleeve of well-flushing sliding sleeve use, as shown in Figure 1:
(1) central axis 4 lower ends are closely connected by screw thread with well-flushing sliding sleeve 9 tops;
(2) from the downward direction in the top of central axis 4 according to first antiscale module 3 order of separation sleeve 2, successively antiscale module and separation sleeve are arranged on the step of central axis 4;
(3) top connection 1 bottom internal thread and central axis 4 upper ends are threaded;
(4) lower contact 8 upper end internal threads are closely connected by screw thread with well-flushing sliding sleeve 9 bottoms;
(5) rubber seal 6 is installed in the groove of lower contact 8 outsides;
(6) be inserted in urceolus 5 from lower contact 8 bottoms direction upwards, urceolus upper end internal thread is connected with top connection 1 external screw thread, sealing ring 6 in lower seal face and the lower contact groove of urceolus 5 forms sealing, makes production fluid can only enter through antiscale module the annular space of oil pipe and oil well casing;
(7) pin hole of lower contact 8 cotter slots and urceolus 5 is aligned to rear installation pin 7, while preventing that lower contact and well-flushing sliding sleeve 9 connecting threads from disconnecting, lower contact 8 is thrown off with sleeve 5 bodies;
(8) location sealing of lower contact 8 bottom external screw threads and Y type electric submersible pump producing tubular column is spirally connected.
When the utility model coordinates the antiscale sleeve of well-flushing sliding sleeve use to use: (1) is lower fashionable, the top connection of antiscale sleeve connects the bypass oil pipe of Y type electric submersible pump producing tubular column, lower contact is connected with the location sealing of Y type electric submersible pump producing tubular column, is lowered into design attitude in well with Y type electric submersible pump producing tubular column; (2) while production, well-flushing sliding sleeve is opened, crude oil and stratum output water enter into the annular space of antiscale sleeve and well-flushing sliding sleeve from the lateral aperture of well-flushing sliding sleeve, be arranged with two meniscate passages by top connection outer side surface, make to enter the antiscale module in antiscale sleeve for crude oil and stratum output water, then enter the annular space of Y type electric submersible pump producing tubular column and oil well casing, then be lifted to ground by electric submersible pump, enter oil-water separation system.
Because the electronegativity of antiscale module material is lower than liquid phase intermediate ion, electron cloud in antiscale module is partial to fluid, and between fluid, form electric field, produce polarity effect, change the electrochemical properties of stratum output water, promote hydrone to form micromolecular water group, positive and negative charge deviation of gravity center increases, produce water dipole, form firmly hydrated ion with calcium ions and magnesium ions in water; Can stop and form and deposition dirt electric submersible pump producing tubular column (down-hole string) is upper, reduce the probability of electric submersible pump and upper tool fouling thereof, extend downhole tool application life.
The utility model coordinates the operating principle of the antiscale sleeve of well-flushing sliding sleeve use:
1, top connection 1 upper end outer rim and lower contact 8 lower end outer rims are provided with chamfering, can prevent from process, running into casing coupling and being hampered being lowered to, and be to be lowered to operation smoothly.
2, central axis 4 internal diameters are identical with the internal diameter of Y type electric submersible pump producing tubular column bypass oil pipe, without chamfering and undergauge, and the problem that is hampered can prevent logging tool and mention and transfer time.The integrated step of this central axis 4, can prevent that antiscale module from dropping.
3, between antiscale module 3, be provided with separation sleeve 2, can prevent from reducing flow area after the stack of antiscale module; Uniform several apertures in this antiscale module 3, when crude oil and stratum output water are passed through, the contact area of increase as much as possible and antiscale module, impels stratum output water to be polarized, and reduces the probability that dirt forms.
4, top connection 1 outer wall is provided with two meniscate passages, and this passage enters in the annular space of Y type electric submersible pump producing tubular column and oil well casing for crude oil and stratum output water, is lifted to ground by electric submersible pump, enters oil-water separation system.
5, because central axis and the well-flushing sliding sleeve of antiscale sleeve barrel tool are hollow tube, can be by production test instrument, and central axis internal diameter is identical with the internal diameter of Y type electric submersible pump producing tubular column bypass oil pipe, when production test, the logging tool being carried by cable can be lowered into well logging position by antiscale sleeve smoothly and carry out production logging.
The above, it is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all still belong in the scope of technical solutions of the utility model.
Claims (4)
1. an antiscale sleeve that coordinates well-flushing sliding sleeve to use, comprise urceolus, central axis and several antiscale module, this antiscale module is set on the integrated step of central axis, and is provided with separation sleeve between several antiscale module, and urceolus is set in the antiscale module-external that central axis arranges; It is characterized in that, described central axis is hollow tube, and its upper end is connected with top connection lower end, and lower end connects well-flushing sliding sleeve; Top connection upper end is connected with the bypass oil pipe of Y type electric submersible pump producing tubular column, and lower end is connected with central axis upper end; Lower contact upper end is connected with well-flushing sliding sleeve bottom, and lower end is connected with the location sealing of Y type electric submersible pump producing tubular column; Urceolus is inserted in by lower contact and is positioned at central axis and well-flushing sliding sleeve outside, and its upper end and top connection are connected and fixed, and bottom and lower contact sealing are fixing.
2. the antiscale sleeve that cooperation well-flushing sliding sleeve according to claim 1 uses, it is characterized in that, described top connection is hollow pipeline section, on this pipeline section, lower two ends are respectively equipped with internal thread, pipeline section outer wall is provided with external screw thread, the bypass oil pipe of upper end internal thread and Y type electric submersible pump producing tubular column is spirally connected, lower end internal thread and central axis are spirally connected, outer wall external screw thread and urceolus upper end internal thread are spirally connected, and top connection outer side surface is arranged with two meniscate passages, this passage enters in the annular space of Y type electric submersible pump producing tubular column and oil well casing through antiscale module for crude oil and stratum output water,
Described central axis is hollow tube, and this central axis upper end and bottom are provided with respectively external screw thread, and upper end external screw thread and top connection lower end internal thread are spirally connected, and bottom external screw thread and well-flushing sliding sleeve are spirally connected;
Described urceolus is hollow tube, and this urceolus upper end is provided with internal thread, and bottom is provided with sealing surface and two pin holes; Upper end internal thread and top connection external thread bolt connection, the sealing ring arranging in lower seal face and lower contact groove forms sealing, make crude oil and stratum output water can only enter through antiscale module the annular space of Y type electric submersible pump producing tubular column and oil well casing, in pin hole to be screwed into pin, while preventing that lower contact and well-flushing sliding sleeve connecting thread from disconnecting, lower contact and urceolus are thrown off;
Described lower contact is hollow pipeline section, its upper end internal thread and well-flushing sliding sleeve bottom are spirally connected, the location sealing of bottom external screw thread and Y type electric submersible pump producing tubular column is spirally connected, this lower contact upper end lateral wall is provided with two along pipeline section circumference and places the grooves of sealing rings, and lower contact lateral wall and urceolus pin hole correspondence position are provided with two cotter slots.
3. the antiscale sleeve that cooperation well-flushing sliding sleeve according to claim 1 uses, is characterized in that, the upper end outer rim of described top connection and the lower end outer rim of lower contact are respectively equipped with chamfering, and the angle of this chamfering is 30 to 60 degree.
4. the antiscale sleeve that cooperation well-flushing sliding sleeve according to claim 1 uses, is characterized in that, described central axis internal diameter is identical with the internal diameter of Y type electric submersible pump producing tubular column bypass oil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320825079.2U CN203626741U (en) | 2013-12-13 | 2013-12-13 | Scale prevention sleeve used in cooperation with well flushing sliding sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320825079.2U CN203626741U (en) | 2013-12-13 | 2013-12-13 | Scale prevention sleeve used in cooperation with well flushing sliding sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203626741U true CN203626741U (en) | 2014-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320825079.2U Expired - Fee Related CN203626741U (en) | 2013-12-13 | 2013-12-13 | Scale prevention sleeve used in cooperation with well flushing sliding sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203626741U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729885A (en) * | 2018-04-12 | 2018-11-02 | 中国海洋石油集团有限公司 | A kind of noble metal antiscale electric submersible pump producing tubular column |
| CN110173234A (en) * | 2019-03-27 | 2019-08-27 | 大庆吉庆雨科技开发有限公司 | It is a kind of to expand the automatic drainage device of formula certainly |
-
2013
- 2013-12-13 CN CN201320825079.2U patent/CN203626741U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729885A (en) * | 2018-04-12 | 2018-11-02 | 中国海洋石油集团有限公司 | A kind of noble metal antiscale electric submersible pump producing tubular column |
| CN110173234A (en) * | 2019-03-27 | 2019-08-27 | 大庆吉庆雨科技开发有限公司 | It is a kind of to expand the automatic drainage device of formula certainly |
| CN110173234B (en) * | 2019-03-27 | 2024-04-19 | 大庆吉庆雨科技开发有限公司 | Self-expanding automatic oil drainage device |
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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 |
Granted publication date: 20140604 Termination date: 20161213 |
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| CF01 | Termination of patent right due to non-payment of annual fee |