CN203175482U - Quantifying steam distributing valve - Google Patents
Quantifying steam distributing valve Download PDFInfo
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- CN203175482U CN203175482U CN 201320028468 CN201320028468U CN203175482U CN 203175482 U CN203175482 U CN 203175482U CN 201320028468 CN201320028468 CN 201320028468 CN 201320028468 U CN201320028468 U CN 201320028468U CN 203175482 U CN203175482 U CN 203175482U
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- Prior art keywords
- sleeve
- neck bush
- steam
- balancing spring
- sliding sleeve
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Abstract
A quantifying steam distributing valve comprises an upper connector, an outer sleeve, a neck bush sleeve, balance springs, a sliding sleeve, a locating sleeve and a lower connector, wherein the outer sleeve is arranged outside the bottom end of the upper connector and the top end of the lower connector in a sleeved mode, the two ends of the neck bush sleeve are fixedly connected to the inner portion the bottom end of the upper connector and the top end of the lower connector, the neck bush sleeve and the outer sleeve form a steam injection annulus, the balance springs, the sliding sleeve and the locating sleeve are all arranged inside the steam injection annulus, a first steam injection hole is formed in the sliding sleeve, the outer sleeve and the neck bush sleeve are provided with a second steam injection hole and a third injection hole respectively, wherein the outer sleeve and the neck bush sleeve correspond to the first steam injection hole, the position, corresponding to a first balance spring, of the neck bush sleeve is provided with a first balance spring, the position, corresponding to a second balance spring, of the outer sleeve is provided with a second balance hole, the balance springs comprise the first balance spring and the second balance spring, a first end of the first balance spring abuts against the upper connector, a second end of the first balance spring abuts against one sliding sleeve, and the second balance spring is arranged between the other end of the sliding sleeve and the locating sleeve. The quantifying steam distributing valve enables steam injection quantity not to be influenced by suction pressure change among stratums, and steam injection is stable.
Description
Technical field
The utility model relates to a kind of steam injection valve, especially relates to a kind of quantitative steam distributing valve.
Background technology
Owing to having entered high round, most of heavy oil wells handles up the stage at present, the old liberated area heavy oil wells is on average handled up all in 8～9 cycles, because each layer physical difference of oil well and the onlap effect of steam become increasingly conspicuous the contradiction of each reservoir, seriously influence development degree and the whole development effectiveness of oil reservoir.Heavy oil wells multi-zone flow regulating technology is main packer and injection allocation valve (ball-throwing type) supporting technology of adopting at present, and there is the deficiency of following several respects in this technology:
First owing to can not give two layers notes vapour simultaneously, can only pour down layer or upper strata earlier, must cause the stewing well of notes vapour layer unbalanced, makes elder generation annotate the heat waste increase of vapour layer, thermal recovery deleterious;
Second because bilevel notes vapour amount relies on artificial well head pitching to realize, so in some cases owing to human error, the error that causes bilevel actual notes vapour amount and design to annotate between the vapour amount is bigger;
During the 3rd multi-zone flow regulating pitching, need hot injection stove emptying to cooperate, therefore, each injection allocation pitching all will cause the waste of steam.
Realize injection allocation by the thermal production well mouth pitching during the 4th notes vapour, because the well head HTHP, there is great hidden danger in operation, and the while has also increased labor intensity of operating personnel.
There is the problem of the following aspects in the measurement steam distributing valve of the 5th The field:
1. unreasonable structure is injected the vapour amount and is distributed inaccurately, and because of stratum gettering ability difference, so the vapour amount difference of distributing, the distribution of vapour amount not only has relation with the area of annotating steam vent, and simultaneously also and injection pressure, the gettering ability on stratum is relevant.
2. in that to annotate vapour initial because borehole pressure is lower, inject the vapour-liquid mixed liquor flow velocity too fast, cause adjusting valve and close the notes passage, cause annotating vapour.
3. existing steam-matching device is owing to design the unreasonable on-the-spot use of batch that causes carrying out, this device can only be annotated the vapour amount according to each notes vapour unit of oil well just can design processing, and the design of oil well notes vapour amount will be ranked in ten days degree operation, may construct immediately after after being ranked, this steam-matching device can not process again at once, and the quantitative dispensing of heavy oil wells can not the realization scale be implemented;
Have the steam distributing valve of measurement but never have the formation scale and mainly contain following several respects reason:
1. according to analyzing on its operating principle, because of the pressure difference of each interlayer of stratum, each layer vapor absorption capacity difference is depended merely on the area of annotating steam vent and is come a minute injection allocation vapour amount, and vapour amount branch is mixed and had certain error.
2. its operating principle is to come a minute injection allocation vapour amount according to the area of annotating steam vent, thus have only well chosen after, go to process joining the vapour amount according to each layer, like this may be because delaying site operation inadequately process time, so it can not form large-scale production.
3. because design has problems when causing oil well notes vapour initial, under the effect of high speed, high pressure vapour-liquid mixed liquor, adjust piston and close the notes steam vent, can not realize annotating vapour, wasted great amount of manpower and material resources.
The utility model content
The technical problem that the utility model solves provides a kind of quantitative steam distributing valve, makes notes vapour amount not be subjected to ground interlayer pressure of inspiration(Pi) variable effect substantially, and it is steady to annotate vapour.
Technical solution of the present utility model is:
A kind of quantitative steam distributing valve wherein, is provided with: top connection, overcoat, neck bush, balancing spring, sliding sleeve, positioning sleeve and lower contact;
Described top connection bottom and the outside, lower contact top are arranged with described overcoat, and described neck bush two ends are fixedly connected on the inboard on described top connection bottom and lower contact top, form between described neck bush and the overcoat to annotate the vapour annular space;
Described balancing spring, sliding sleeve and positioning sleeve all are arranged in the described notes vapour annular space; Described sliding sleeve is provided with first and annotates steam vent;
Described balancing spring comprises first balancing spring and second balancing spring, and first end of described first balancing spring is replaced described top connection, and its second end is replaced a described sliding sleeve, is provided with second balancing spring between the other end of described sliding sleeve and the described positioning sleeve;
The position of corresponding described first balancing spring of described neck bush is provided with first balance pipe, and corresponding described second balancing spring of described overcoat is provided with second balance pipe;
Described overcoat and neck bush corresponding described first annotated steam vent and is respectively equipped with the second notes steam vent and the 3rd notes steam vent.
Above-mentioned quantitative steam distributing valve wherein, is provided with pin between described positioning sleeve and the described overcoat.
Above-mentioned quantitative steam distributing valve wherein, is fixedlyed connected via screw connection structure between described top connection and lower contact and described overcoat and the neck bush.
Learnt that by above explanation the utility model can reach following effect compared with prior art really:
Quantitative steam distributing valve of the present utility model can be controlled the high permeability zone inspiratory capacity, strengthens the notes vapour amount to less permeable layer, improves interlayer contradiction; Improve steam injection pressure, save the vapour amount of annotating; Annotate the vapour amount and be not subjected to ground interlayer pressure of inspiration(Pi) variable effect substantially, it is steady to annotate vapour, can finish the injection allocation amount of each oil reservoir steam preferably.
Description of drawings
Fig. 1 is the structural representation of the quantitative steam distributing valve preferred embodiment of the utility model.
The critical element label declaration:
1: top connection 2: 3: the first balancing springs of overcoat
4: sliding sleeve 5: pin 6: positioning sleeve
7: 8: the first balance pipes 9 of lower contact: neck bush
10: the second notes steam vents are annotated steam vent and were annotated steam vent in 12: the three at 11: the first
14: the second balancing springs of 13: the second balance pipes
The specific embodiment
A kind of quantitative steam distributing valve is provided with: top connection, overcoat, neck bush, balancing spring, sliding sleeve, positioning sleeve and lower contact; Described top connection bottom and the outside, lower contact top are arranged with described overcoat, and described neck bush two ends are fixedly connected on the inboard on described top connection bottom and lower contact top, form between described neck bush and the overcoat to annotate the vapour annular space; Described balancing spring, sliding sleeve and positioning sleeve all are arranged in the described notes vapour annular space; Described sliding sleeve is provided with first and annotates steam vent; Described balancing spring comprises first balancing spring and second balancing spring, and first end of described first balancing spring is replaced described top connection, and its second end is replaced a described sliding sleeve, is provided with second balancing spring between the other end of described sliding sleeve and the described positioning sleeve; The position of corresponding described first balancing spring of described neck bush is provided with first balance pipe, and corresponding described second balancing spring of described overcoat is provided with second balance pipe; Described overcoat and neck bush corresponding described first annotated steam vent and is respectively equipped with the second notes steam vent and the 3rd notes steam vent.
Whereby, by the interaction between balancing spring and the steam injection pressure, allow to control the high permeability zone inspiratory capacity, strengthen the notes vapour amount to less permeable layer, improve interlayer contradiction; Improve steam injection pressure, save the vapour amount of annotating; Annotate the vapour amount and be not subjected to ground interlayer pressure of inspiration(Pi) variable effect substantially, it is steady to annotate vapour, can finish the injection allocation amount of each oil reservoir steam preferably.
Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast the description of drawings specific embodiment of the present utility model.
See also shown in Figure 1ly, be the structural representation of the quantitative steam distributing valve preferred embodiment of the utility model.Quantitative steam distributing valve of the present utility model, preferable, this quantitative steam distributing valve is provided with: top connection 1, overcoat 2, neck bush 9, balancing spring, sliding sleeve 4, positioning sleeve 6 and lower contact 7 form a tubular column structure.Described top connection 1 bottom and the outside, lower contact 7 tops are arranged with described overcoat 2, and described neck bush 9 two ends are fixedly connected on the inboard on described top connection 1 bottom and lower contact 7 tops, make top connection 1 and lower contact 7 lay respectively at the two ends of neck bush 9 and overcoat 2, formation is with tubular structure, and the vapour annular space is annotated in formation between described neck bush 9 and the overcoat 2.
And described balancing spring, sliding sleeve 4 and positioning sleeve 6 all are arranged in the described notes vapour annular space; Described sliding sleeve 4 is provided with first and annotates steam vent 11; Described overcoat 2 and neck bush 9 corresponding described first are annotated steam vent 11 and are respectively equipped with the second notes steam vent 10 and the 3rd notes steam vent 12; Described sliding sleeve 4, balancing spring all can slide in annular space, and the first notes steam vent 11 of described sliding sleeve 4 can be annotated the opening that is communicated with between the steam vent 12 with the described second notes steam vent 10 and the 3rd with the variable in distance of sliding and change in sliding process, thereby the pressure size that change steam injects.
The position of described neck bush 9 corresponding described first balancing springs 3 is provided with first balance pipe 8, and described overcoat 2 corresponding described second balancing springs 14 are provided with second balance pipe 13;
In addition, described balancing spring comprises first balancing spring 3 and second balancing spring 14, first end of described first balancing spring 3 is replaced described top connection 1, its second end is replaced a described sliding sleeve 4, form first balance cylinder, this balance cylinder since via be opened on the neck bush 9 first balance pipe 8 and with this quantitative steam distributing valve inside together with, so the interior atmospheric pressure value of the force value in this first balance cylinder and equalizing valve is identical; In this simultaneously, be provided with second balancing spring 14 between the other end of described sliding sleeve 4 and the described positioning sleeve 6, form second balance cylinder, because this balance cylinder is communicated with outside oil reservoir via being opened in second balance pipe 13 on the overcoat 2, so the force value in this second balance cylinder is identical with the pressure size of outside oil reservoir.
When annotating vapour, because quantitatively the pressure in the steam distributing valve is greater than the pressure of outside oil reservoir, so that the pressure of first balance cylinder greater than the pressure of second balance cylinder, thereby under action of pressure, sliding sleeve 4 moves to positioning sleeve 6, make the openings get smaller between the notes steam vent on sliding sleeve 4, overcoat 2 and the neck bush 9, change the variation of flow.In addition, after second balancing spring 14 is compressed, produces a reaction force and replace sliding sleeve 4 and continue mobilely, sliding sleeve 4 stops mobile; In addition, when external pressure during greater than internal pressure, sliding sleeve 4 moves to top connection 1 direction under action of pressure, also increases gradually and annotates the vapour area.Whereby, in the process that quantitatively the inside and outside pressure of steam distributing valve constantly changes, control the variation of annotating the steam flow amount by the aperture size between first balancing spring 3, second balancing spring 14, sliding sleeve 4 and the notes steam vent; So move according to driving slide block under the acting in conjunction of the gettering ability on steam injection pressure, stratum, regulate this device and go up the variation of the aperture control flow of steam (vapor) outlet, its flow is remained essentially in stablize in the design discharge scope constant, reach the purpose of quantitative gas filling.
Aforesaid quantitative steam distributing valve in its preferred implementation, is provided with pin 5 between described positioning sleeve 6 and the described overcoat 2.Before using this quantitative steam distributing valve, can at first calculate the ratio of each layer notes vapour area of passage according to the vapour amount of joining of each layer, fixing with pin 5 to the appropriate location by adjusting positioning sleeve 66.
Aforesaid quantitative steam distributing valve in its preferred embodiment, is fixedlyed connected via screw connection structure between described top connection 1 and lower contact 7 and described overcoat and the neck bush.Described connected mode also can be other the structure that is connected and fixed, as long as satisfy the requirement that is connected and fixed and seals, not as limit.
The above only is the schematic specific embodiment of the utility model, is not in order to limit scope of the present utility model.Any those skilled in the art, the equivalent variations of having done under the prerequisite that does not break away from design of the present utility model and principle and modification all should belong to the scope that the utility model is protected.
Claims (3)
1. a quantitative steam distributing valve is characterized in that, is provided with: top connection, overcoat, neck bush, balancing spring, sliding sleeve, positioning sleeve and lower contact;
Described top connection bottom and the outside, lower contact top are arranged with described overcoat, and described neck bush two ends are fixedly connected on the inboard on described top connection bottom and lower contact top, form between described neck bush and the overcoat to annotate the vapour annular space;
Described balancing spring, sliding sleeve and positioning sleeve all are arranged in the described notes vapour annular space; Described sliding sleeve is provided with first and annotates steam vent; Described overcoat and neck bush corresponding described first annotated steam vent and is respectively equipped with the second notes steam vent and the 3rd notes steam vent;
The position of corresponding described first balancing spring of described neck bush is provided with first balance pipe, and corresponding described second balancing spring of described overcoat is provided with second balance pipe;
Described balancing spring comprises first balancing spring and second balancing spring, and first end of described first balancing spring is replaced described top connection, and its second end is replaced a described sliding sleeve, is provided with second balancing spring between the other end of described sliding sleeve and the described positioning sleeve.
2. quantitative steam distributing valve as claimed in claim 1 is characterized in that, is provided with pin between described positioning sleeve and the described overcoat.
3. quantitative steam distributing valve as claimed in claim 1 is characterized in that, fixedlys connected via screw connection structure between described top connection and lower contact and described overcoat and the neck bush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320028468 CN203175482U (en) | 2013-01-18 | 2013-01-18 | Quantifying steam distributing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320028468 CN203175482U (en) | 2013-01-18 | 2013-01-18 | Quantifying steam distributing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203175482U true CN203175482U (en) | 2013-09-04 |
Family
ID=49072197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320028468 Expired - Fee Related CN203175482U (en) | 2013-01-18 | 2013-01-18 | Quantifying steam distributing valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN203175482U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314518A (en) * | 2014-10-28 | 2015-01-28 | 中国石油集团西部钻探工程有限公司 | Opening-closing tool |
| CN104695930A (en) * | 2015-03-10 | 2015-06-10 | 西安海智机电设备有限公司 | Oil jacket simultaneous-filling control valve |
| CN108547602A (en) * | 2018-04-24 | 2018-09-18 | 西南石油大学 | A kind of air water dispenser and method |
| CN117211727A (en) * | 2023-11-06 | 2023-12-12 | 中石化西南石油工程有限公司 | Double-packer annulus pressure balancing device |
-
2013
- 2013-01-18 CN CN 201320028468 patent/CN203175482U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314518A (en) * | 2014-10-28 | 2015-01-28 | 中国石油集团西部钻探工程有限公司 | Opening-closing tool |
| CN104695930A (en) * | 2015-03-10 | 2015-06-10 | 西安海智机电设备有限公司 | Oil jacket simultaneous-filling control valve |
| CN108547602A (en) * | 2018-04-24 | 2018-09-18 | 西南石油大学 | A kind of air water dispenser and method |
| CN108547602B (en) * | 2018-04-24 | 2020-07-17 | 西南石油大学 | Gas-water separate injection device and method |
| CN117211727A (en) * | 2023-11-06 | 2023-12-12 | 中石化西南石油工程有限公司 | Double-packer annulus pressure balancing device |
| CN117211727B (en) * | 2023-11-06 | 2024-02-27 | 中石化西南石油工程有限公司 | Double-packer annulus pressure balancing 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20220118 |