CN201963284U - Uniform steam injector - Google Patents
Uniform steam injector Download PDFInfo
- Publication number
- CN201963284U CN201963284U CN2011200919287U CN201120091928U CN201963284U CN 201963284 U CN201963284 U CN 201963284U CN 2011200919287 U CN2011200919287 U CN 2011200919287U CN 201120091928 U CN201120091928 U CN 201120091928U CN 201963284 U CN201963284 U CN 201963284U
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- China
- Prior art keywords
- steam
- vapour
- steam injection
- guide cover
- sub
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Abstract
The utility model provides a uniform steam injector, which relates to the technical field of an oil field steam injector and comprises a variable-diameter connecting hoop, an oil pipe nipple, steam injection nozzles and a steam guide cover, wherein the steam guide cover with the inner diameter being greater than the inner diameter of the variable-diameter connecting hoop is fixed on the outer side of the right end of the variable-diameter connecting hoop, the inner side of the right end of the variable-diameter connecting hoop is fixedly installed with the outer side of the left end of the oil pipe nipple, at least one steam injection hole is arranged on the oil pipe nipple arranged at the inner side of the steam guide cover, the steam injection spray nozzles are fixedly arranged on each steam injection hole, and a steam outlet passage with a rightward opening is formed between the steam guide cover and the oil pipe nipple. The uniform steam injector has the advantages that the structure is reasonable and compact, the use is convenient, and because of the arrangement of the steam guide cover on the outer side of the steam injection spray nozzles, the steam sprayed out from the steam injection spray nozzles is firstly sprayed to the steam guide cover and is prevented from being directly sprayed onto an oil layer sleeve pipe or a sieve pipe, so that the damage to the oil layer sleeve pipe or the sieve pipe is reduced, and the service life of an oil well is improved.
Description
Technical field
The utility model relates to oil field steam injection device technical field, is a kind of even steam injection apparatus.
Background technology
A kind of employing of oil field steam injection device at present be directly from tubing nipple upper shed spraying steam because the washing away for a long time of high temperature and high pressure steam, annotate steam vent and enlarge thereby make, can not guarantee the even cloth vapour of a whole set of steam injection string; Another kind is to annotate increase notes vapour nozzle on the vapour pipe nipple, its anti-wear performance improves, annotating steam flow speed decreases, but be lowered in sleeve pipe or the screen casing owing to annotate the vapour pipe nipple, directly being flushed in for a long time on production string or the screen casing of the high temperature and high pressure steam of notes vapour nozzle ejection, cause production string or screen casing to damage, influence the life-span of oil well.
Summary of the invention
The utility model provides a kind of even steam injection apparatus, overcome the deficiency of above-mentioned prior art, its high temperature and high pressure steam that can effectively solve owing to the ejection of steam injection device directly is flushed in the problem that causes production string or screen casing to damage on production string or the screen casing.
The technical solution of the utility model realizes by following measure: a kind of even steam injection apparatus comprises sub-coupling, tubing nipple, notes vapour nozzle and leads the vapour cover; Be fixed with internal diameter in the right-hand member of the sub-coupling outside and lead the vapour cover greater than the sub-coupling internal diameter, the inboard left end outside with tubing nipple of the right-hand member of sub-coupling is fixedly installed togather, the notes steam vent that is no less than one is arranged on the tubing nipple of leading vapour cover inboard, on each annotates steam vent, be installed with and annotate the vapour nozzle, lead forming opening between vapour cover and the tubing nipple and go out the vapour passage towards the right side.
Be further optimization and/or improvements below to above-mentioned utility model technical scheme:
The above-mentioned external diameter that goes out right-hand tubing nipple of vapour passage can be the wide taper type in the left narrow right side.
The inboard left end outside with tubing nipple of the right-hand member of above-mentioned sub-coupling can be fixedly installed togather by screw thread.
Can be installed with by screw thread on above-mentioned each notes steam vent and annotate the vapour nozzle.
The utility model reasonable and compact in structure, easy to use, owing to lead the vapour cover having annotated vapour nozzle arranged outside, make to be sprayed onto earlier and lead the vapour cover from the steam of annotating the ejection of vapour nozzle, avoid directly being sprayed onto on production string or the screen casing, thereby reduced damage, improved the life-span of oil well production string or screen casing.
Description of drawings
Accompanying drawing 1 is looked the half section structural representation for master of the present utility model.
Coding in the accompanying drawing is respectively: 1 is sub-coupling, and 2 is tubing nipple, and 3 for annotating the vapour nozzle, and 4 for leading the vapour cover, and 5 for going out the vapour passage.
The specific embodiment
The utility model is not subjected to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
Below in conjunction with embodiment and accompanying drawing the utility model is further described:
As shown in Figure 1, this even steam injection apparatus comprises sub-coupling 1, tubing nipple 2, annotates vapour nozzle 3 and leads vapour cover 4; Be fixed with internal diameter in the right-hand member of sub-coupling 1 outside and lead vapour cover 4 greater than sub-coupling 1 internal diameter, the inboard left end outside with tubing nipple 2 of the right-hand member of sub-coupling 1 is fixedly installed togather, the notes steam vent that is no less than one is arranged on the tubing nipple 2 of leading vapour cover 4 inboards, on each annotates steam vent, be installed with and annotate vapour nozzle 3, lead formation opening between vapour cover 4 and the tubing nipple 2 and go out vapour passage 5 towards the right side; Like this, when install annotating vapour nozzle 3, have better wear resistance, simultaneously, when the nozzle place goes wrong, can annotate vapour nozzle 3 and continue use by changing than the hole spraying steam that directly uses on the tubing nipple 2; Lead vapour cover 4 and can hinder the bigger steam of pressure and be ejected on other important components, reduce to use to go up big damage takes place.
Can according to actual needs above-mentioned even steam injection apparatus be made further optimization and/or improvements:
As shown in Figure 1, the external diameter that goes out right-hand tubing nipple 2 of vapour passage 5 is the wide taper type in the left narrow right side; Like this, can make steam along gradient to external diffusion.
As shown in Figure 1, the inboard left end outside with tubing nipple 2 of the right-hand member of sub-coupling 1 is fixedly installed togather by screw thread; Like this, can help installation and removal, it is more convenient to keep in repair.
As shown in Figure 1, each is annotated on the steam vent and is installed with notes vapour nozzle 3 by screw thread; When annotating vapour nozzle 3 and go wrong, can dismantle and repair or replace.
Above technical characterictic has constituted most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
The assembling of the utility model most preferred embodiment and use: when assembling, at first will annotate on the notes steam vent that vapour nozzle 3 is fixedly mounted on tubing nipple 2, improved the abrasion resistance of annotating steam vent like this, end with sub-coupling 1 is connected with oil pipe again, the other end of sub-coupling 1 is connected with tubing nipple 2, and during use, the steam of annotating 3 ejections of vapour nozzle is sprayed onto earlier leads on the vapour cover 4, avoid directly being sprayed onto on production string or the screen casing, can reduce production string or screen casing are damaged.
Claims (5)
1. an even steam injection apparatus is characterized in that comprising sub-coupling, tubing nipple, notes vapour nozzle and leads the vapour cover; Be fixed with internal diameter in the right-hand member of the sub-coupling outside and lead the vapour cover greater than the sub-coupling internal diameter, the inboard left end outside with tubing nipple of the right-hand member of sub-coupling is fixedly installed togather, the notes steam vent that is no less than one is arranged on the tubing nipple of leading vapour cover inboard, on each annotates steam vent, be installed with and annotate the vapour nozzle, lead forming opening between vapour cover and the tubing nipple and go out the vapour passage towards the right side.
2. even steam injection apparatus according to claim 1 is characterized in that the external diameter of the tubing nipple that the vapour passage is right-hand is the wide taper type in the left narrow right side.
3. even steam injection apparatus according to claim 1 and 2 is characterized in that the inboard left end outside with tubing nipple of right-hand member of sub-coupling is fixedly installed togather by screw thread.
4. even steam injection apparatus according to claim 1 and 2 is characterized in that being installed with notes vapour nozzle by screw thread on each notes steam vent.
5. even steam injection apparatus according to claim 3 is characterized in that being installed with notes vapour nozzle by screw thread on each notes steam vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200919287U CN201963284U (en) | 2011-03-31 | 2011-03-31 | Uniform steam injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200919287U CN201963284U (en) | 2011-03-31 | 2011-03-31 | Uniform steam injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201963284U true CN201963284U (en) | 2011-09-07 |
Family
ID=44525819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200919287U Expired - Lifetime CN201963284U (en) | 2011-03-31 | 2011-03-31 | Uniform steam injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201963284U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603641A (en) * | 2013-11-09 | 2014-02-26 | 胜利油田华滨机制管件有限责任公司 | Injection allocator |
| CN104314544A (en) * | 2014-10-24 | 2015-01-28 | 中国石油天然气股份有限公司 | Adjustable annular flow injection valve and steam injection string |
| WO2015089669A1 (en) * | 2013-12-20 | 2015-06-25 | Absolute Completion Technologies Ltd. | Nozzle, wellbore tubular and method |
-
2011
- 2011-03-31 CN CN2011200919287U patent/CN201963284U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603641A (en) * | 2013-11-09 | 2014-02-26 | 胜利油田华滨机制管件有限责任公司 | Injection allocator |
| WO2015089669A1 (en) * | 2013-12-20 | 2015-06-25 | Absolute Completion Technologies Ltd. | Nozzle, wellbore tubular and method |
| CN104314544A (en) * | 2014-10-24 | 2015-01-28 | 中国石油天然气股份有限公司 | Adjustable annular flow injection valve and steam injection string |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110907 |