CN203783550U - Steam huff and puff non-pressing well device - Google Patents
Steam huff and puff non-pressing well device Download PDFInfo
- Publication number
- CN203783550U CN203783550U CN201420026650.9U CN201420026650U CN203783550U CN 203783550 U CN203783550 U CN 203783550U CN 201420026650 U CN201420026650 U CN 201420026650U CN 203783550 U CN203783550 U CN 203783550U
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- China
- Prior art keywords
- main body
- body tube
- sealing
- body pipe
- pipe
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- Expired - Fee Related
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Abstract
The utility model discloses a steam huff and puff non-pressing well device which comprises a main body pipe, wherein the outer side of the main body pipe is provided with an anchoring device; the anchoring device is used for fixing and hanging the main body pipe in a sleeve; the non-pressing well device also comprises a sealing insert pipe and a sliding sleeve valve; the inner bottom end of the main body pipe is provided with the sliding sleeve valve; the interior of the main body pipe is provided with an inner cavity capable of allowing falling of the sealing insert pipe; the sealing insert pipe falls down in the inner cavity and is in contact with the slide sleeve valve, and then operations is performed on the slide valve sleeve; the inner wall of the main body pipe is provided with a seal groove; the seal groove is internally provided with a seal ring; when the sealing insert pipe falls down in the main body pipe, a space between the outer wall of the sealing insert pipe and the inner wall of the main body pipe is sealed by the seal ring; an annular space between the outer side of the main body pipe and the sleeve is provided with a thermal recovery annular space sealing device. The steam huff and puff non-pressing well device is capable of greatly shortening the operation time and preventing cold damage, is convenient in use, is safe and reliable, can be widely applied to a steam huff and puff thermal recovery well, and can be used for realizing rapid and non-pressing well rotation and drawing after steam huff and puff thermal recovery.
Description
Technical field
The utility model relates to oil-field thick-oil thermal recovery implement, especially steam soak and exempts from kill-job device.
Background technology
At present oil-field thick-oil exploitation be take steam injection and is handled up as main, and most of thermal production well open flow turns to be taken out link and have long, the problem of kill-job to stratum cold damage of low liquid measure open flow time, causes operation to account for that the product time is long, efficiency is low, thermal recovery weak effect.
Hollow cannula bridging plug technique is having ripe application aspect oilfield shutoff, well water filling.But turn and take out not concrete application in operation in thermal recovery.
Summary of the invention
The purpose of this utility model is to provide steam soak to exempt from kill-job device, can significantly shorten operation and account for the product time, prevents cold damage, easy to use, safe and reliable, can be widely used in steam soak thermal production well.Realizing after steam soak thermal recovery fast, exempt from kill-job turns and takes out.
In order to reach above-mentioned purpose, the utility model has adopted following technical scheme, steam soak is exempted from kill-job device, comprise main body tube, described main body tube arranged outside has anchoring device, and anchoring device is fixedly suspended in sleeve pipe by main body tube, also comprise sealing intubate, Valve with sliding bush, described main body tube inner bottom is provided with Valve with sliding bush, and described main body tube inside is offered and held the inner chamber that sealing intubate falls, and described sealing intubate falls and contacts slide valve buckle at described inner chamber and then slide valve buckle performed an action.
Described main body tube inwall is offered seal groove, and sealing ring is set in seal groove, and when described sealing intubate falls in main body tube, sealing ring is realized the sealing between sealing intubate outer wall and main body tube inwall.
Annular space between described main body tube outside and sleeve pipe also arranges thermal recovery annular space sealing device, and described thermal recovery annular space sealing device is positioned at anchoring device below.
Described main body tube upper end connects instlated tubular, and in connection, flow divider is set, and in described instlated tubular, to flow divider, throws steel ball, drops on the ball seat of flow divider, can realize anti-flushing well cooling, and flushing fluid can not enter oil reservoir.
Main body tube upper end connected pipes, described sealing intubate upper end is connected to the bottom of the oil well pump arranging on oil pipe.
Compared to prior art, the utlity model has following beneficial effect:
1) seal intubate during heat extraction by steam injection and insert and realize packing steam injection, open flow need to turn latter stage to be extracted intubate while taking out and closes outlet, realizes exempting from kill-job and turning and take out, and improves operation actual effect, prevents well-flushing cold damage.
2) safety is good, turns and takes out front pitching, by flow divider capable of backwashing wells, lowers the temperature, and improves thermal recovery and turns the safe coefficient of taking out construction.
Accompanying drawing explanation
Fig. 1 is that steam soak of the present utility model is exempted from kill-job application of installation at the structure chart of steam injection string;
Fig. 2 is that steam soak of the present utility model is exempted from kill-job application of installation at the structure chart of flow string.
In figure: 1. flow divider; 2. seal intubate; 3. anchoring device; 4. thermal recovery annular space sealing device; 5 sealing rings; 6. Valve with sliding bush; 7. sleeve pipe; 8. instlated tubular; 9. oil pipe; 10. oil well pump.
The specific embodiment
Relevant detailed description of the present utility model and technology contents, coordinate accompanying drawing to be described as follows, yet accompanying drawing only provides the use of reference with explanation, is not used for the utility model to be limited.
As shown in Figure 1-2, steam soak is exempted from kill-job device, comprise main body tube, described main body tube arranged outside has anchoring device 3, anchoring device is fixedly suspended on main body tube in sleeve pipe 7, also comprises sealing intubate 2, Valve with sliding bush 6, and described main body tube inner bottom is provided with Valve with sliding bush, described main body tube inside is offered and is held the inner chamber that sealing intubate falls, and described sealing intubate falls and contacts slide valve buckle at described inner chamber and then slide valve buckle performed an action.Described main body tube inwall is offered seal groove, and sealing ring 5 is set in seal groove, and when described sealing intubate falls in main body tube, sealing ring is realized the sealing between sealing intubate outer wall and main body tube inwall.Annular space between described main body tube outside and sleeve pipe also arranges thermal recovery annular space sealing device 4, and described thermal recovery annular space sealing device is positioned at anchoring device below.
During steam injection, first descend and under instlated tubular, connect anchoring device 3 and thermal recovery annular space sealing device 4, after design attitude, by ground pump truck, suppress setting giving up, on put put instlated tubular by sealing intubate 2 open Valve with sliding bush 6, thereby open fluid course, sealing intubate 2 is isolated by sealing ring 5 realizations and upper annulus, realizes sealing steam injection.After steam injection completes, pitching in instlated tubular, drops on flow divider 1 ball seat, can realize anti-flushing well cooling, and flushing fluid can not enter oil reservoir, carries instlated tubular on after well-flushing to take sealing intubate 2 out of, closes Valve with sliding bush 6, closes fluid course, realizes exempting from kill-job and turning and take out.During lower pump, by connect sealing intubate 2 under pump, transfer and open Valve with sliding bush 6, open production fluid passage, drop into normally and produce.
Hollow cannula bridging plug technique is having ripe application aspect oilfield shutoff, well water filling.But turn and take out not concrete application in operation in thermal recovery.This device, on the basis of former application, designs resistance to 350 ℃ of high temperature packing rubber sleeves, sealing ring, can meet thermal recovery temperature requirement, design flow divider, can before upper lifting pipe post, implement pitching well-flushing cooling, and flushing fluid can not enter oil reservoir, improve the security reliability of job execution.The supporting sealing intubate of this application of installation hollow bridging plug principle, sealing intubate realizes steam injection, stewing well, open flow while inserting, and pressure drop need to turn while taking out, and extracts intubate bottom bottom valve and automatically closes, and realizes and exempts from kill job, reaches the object that effect is put forward in thermal recovery operation.Shortcoming is high to the sleeve pipe situation requirement of oil well, requires sleeve pipe rule without distortion, seepage.
The foregoing is only preferred embodiment of the present utility model, non-in order to limit the scope of the claims of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should all belong to the scope of the claims of the present utility model.
Claims (5)
1. steam soak is exempted from kill-job device, comprise main body tube, described main body tube arranged outside has anchoring device, anchoring device is fixedly suspended in sleeve pipe by main body tube, it is characterized in that, also comprise sealing intubate, Valve with sliding bush, described main body tube inner bottom is provided with Valve with sliding bush, described main body tube inside is offered and is held the inner chamber that sealing intubate falls, and described sealing intubate falls and contacts slide valve buckle at described inner chamber and then slide valve buckle performed an action.
2. steam soak according to claim 1 is exempted from kill-job device, it is characterized in that, described main body tube inwall is offered seal groove, and sealing ring is set in seal groove, when described sealing intubate falls in main body tube, sealing ring is realized the sealing between sealing intubate outer wall and main body tube inwall.
3. steam soak according to claim 1 is exempted from kill-job device, it is characterized in that, the annular space between described main body tube outside and sleeve pipe also arranges thermal recovery annular space sealing device, and described thermal recovery annular space sealing device is positioned at anchoring device below.
4. steam soak according to claim 1 is exempted from kill-job device, it is characterized in that, described main body tube upper end connects instlated tubular, and in connection, flow divider is set, in described instlated tubular, to flow divider, throw steel ball, drop on the ball seat of flow divider, can realize anti-flushing well cooling, and flushing fluid can not enter oil reservoir.
5. steam soak according to claim 1 is exempted from kill-job device, it is characterized in that, and main body tube upper end connected pipes, described sealing intubate upper end is connected to the bottom of the oil well pump arranging on oil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420026650.9U CN203783550U (en) | 2014-01-16 | 2014-01-16 | Steam huff and puff non-pressing well device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420026650.9U CN203783550U (en) | 2014-01-16 | 2014-01-16 | Steam huff and puff non-pressing well device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203783550U true CN203783550U (en) | 2014-08-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420026650.9U Expired - Fee Related CN203783550U (en) | 2014-01-16 | 2014-01-16 | Steam huff and puff non-pressing well device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203783550U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107605443A (en) * | 2017-09-12 | 2018-01-19 | 中国石油天然气股份有限公司 | A kind of CO2Drive gas injection technology tubular column structure |
-
2014
- 2014-01-16 CN CN201420026650.9U patent/CN203783550U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107605443A (en) * | 2017-09-12 | 2018-01-19 | 中国石油天然气股份有限公司 | A kind of CO2Drive gas injection technology tubular column structure |
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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: 20140820 Termination date: 20150116 |
|
| EXPY | Termination of patent right or utility model |