CN203626730U - Reverse single current device of area pressure operation - Google Patents
Reverse single current device of area pressure operation Download PDFInfo
- Publication number
- CN203626730U CN203626730U CN201320704091.8U CN201320704091U CN203626730U CN 203626730 U CN203626730 U CN 203626730U CN 201320704091 U CN201320704091 U CN 201320704091U CN 203626730 U CN203626730 U CN 203626730U
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- Prior art keywords
- top connection
- operating pressure
- spring
- reverse single
- steel ball
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- Expired - Fee Related
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 abstract description 8
- 230000002457 bidirectional effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Abstract
A reverse single flow device for under-pressure operation belongs to the technical field of oil field under-pressure operation. The upper joint is provided with an inner cavity ball seat which is an upper ball seat and a lower ball seat, the upper joint is of a bidirectional interchangeable structure, and the upper joint thread of the upper joint is 27/8UPTBG box, top sub thread and downhole 27/8"UPTBG tubing connection; the upper joint is connected with the lower joint, and a spring and a steel ball are sequentially arranged in an inner cavity of a spring seat of the lower joint. Inside can realizing one-way shutoff liquid from the sleeve pipe entering oil pipe, realize simultaneously according to the operation needs that liquid opens single current under the low pressure condition, realize that liquid from oil pipe entering sleeve pipe returns the well area pressure operation of going out.
Description
Technical field
The utility model relates to the reverse single flow device of a kind of Operating Pressure, belongs to oil field Operating Pressure technical field.
Background technology
In oilfield downhole operation construction, because the oil field later stage adopts water flooding recovery operation, keep the pressure on stratum by the water that injects stratum.For this reason, oil field will arrange corresponding water injection well in offtake pattern, water injection well needs its tubing string, instrument to carry out upkeep operation after work a period of time, but this type wellhead of water injection well pressure is high, the in the situation that of wellheadpressure, can only take the mode of Operating Pressure to carry out down-hole upkeep operation, in Operating Pressure process, mainly adopt at present the reverse single current of hinge type back-moving spring, the reverse single current working poor reliability of this type Operating Pressure, often occur that leakage and the work of hinge type back-moving spring are unreliable, bring larger risk to Operating Pressure; Also cannot realize the anti-interior pressure testing of pressing of oil pipe simultaneously.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of Operating Pressure reverse single flow device, is that one is used for realizing shutoff oil pipe, keeps the prerequisite of borehole pressure, realizes the special tool of water injection well maintenance activity.
The reverse single flow device of a kind of Operating Pressure, top connection is with inner chamber ball seat, and inner chamber ball seat is upper ball base, lower ball base, and top connection is two-way interchangeable type structure, and the top connection screw thread of top connection is 2
7/
8" UPTBG box, top connection screw thread with go into the well 2
7/
8" UPTBG oil pipe is connected; Top connection is connected with lower contact, at spring base inner chamber mounting spring and the steel ball successively of lower contact.
The upper ball base of top connection, lower ball base structure are symmetrical structure.
Steel ball size is greater than top connection internal diameter, has contact ring sphere.
Steel ball size is greater than spring inside diameter, has contact ring sphere.
Steel ball size, spring outer diameter are all less than lower contact spring base internal diameter.
The beneficial effects of the utility model: the reverse single current of the utility model Operating Pressure, can meet in different well types (straight well, inclined shaft, horizontal well) and carry out Operating Pressure.
1, the reverse single current of this Operating Pressure, combines the function of reverse single current and pressure testing single current, reliable working performance simultaneously, and structure, simple to operate, can carry out independent replacing according to the damage of accessory, and cost is low.
2, solved in Operating Pressure process, spread from oil pipe insecure problem of taking measures for plugged well internal pressure.
3, having solved in Operating Pressure process should shutoff liquid, pressure is by the problem that diffuses to ground and cannot carry out Operating Pressure in well from oil pipe, keeps again oil jacket to have passage, can carry out well-flushing, oil pipe and press in anti-the problem of pressure testing.
Accompanying drawing explanation
When considered in conjunction with the accompanying drawings, by the detailed description with reference to below, can more completely understand better the utility model and easily learn wherein many advantages of following, but accompanying drawing described herein is used to provide further understanding of the present utility model, form a part of the present utility model, schematic description and description of the present utility model is used for explaining the utility model, do not form improper restriction of the present utility model, as schemed wherein:
Fig. 1 is structural representation of the present utility model.
Below in conjunction with drawings and Examples, the utility model is further illustrated.
The specific embodiment
Obviously the many modifications and variations that, those skilled in the art do based on aim of the present utility model belong to protection domain of the present utility model.
Embodiment 1: as shown in Figure 1, the reverse single flow device of a kind of Operating Pressure, can realize shutoff sleeve pipe liquid, pressure in Operating Pressure process and import the single current in oil pipe into, can realize the anti-interior instrument of pressing pressure testing, direct circulation clean-out service with pressure of oil pipe simultaneously.This instrument has the advantages that processing cost is low, functional reliability strong, scene is applied widely.
Take a reverse single current of Operating Pressure that is applicable to internal diameter φ 124.26mm sleeve pipe as example, choose the reverse single current of Operating Pressure of φ 93.17mm, the utility model is described in further detail.
The reverse single flow device of a kind of Operating Pressure, top connection 1 is with inner chamber ball seat, and inner chamber ball seat is upper ball base, lower ball base, and top connection 1 is two-way interchangeable type structure, and the top connection screw thread of top connection 1 is 2
7/
8" UPTBG box, top connection screw thread with go into the well 2
7/
8" UPTBG oil pipe is connected; Top connection 1 is connected with lower contact 4, at spring base inner chamber mounting spring 3 and the steel ball 2 successively of lower contact 4.
Top connection 1, lower contact 4 are by 2
7/
8" UPTBG screwed connection puts in place, Compress Spring 3, steel ball 2 spring 3 effect under contact with the lower ball base of top connection 1, realize liquid opening circuit from top to bottom, the check action of path from top to bottom, single current is opened simultaneously needs certain opening pressure.
The upper and lower button-type of the reverse single current top connection 1 of Operating Pressure is 2
7/
8" UPTBG oil pipe box, the ball seat of top connection 1 is upper and lower two, and total is symmetrical structure, and upper ball base uses while mainly pressing pressure testing in oil pipe is anti-, and lower ball base and steel ball 2, spring 3 and lower contact 4 are in conjunction with the reverse single current of composition Operating Pressure.
Top connection 1 coordinates and puts in place with steel ball 2, and steel ball 2 diameters are greater than top connection 1 internal diameter, has a contact ring sphere.
Embodiment 2: as shown in Figure 1, the reverse single flow device of a kind of Operating Pressure, is mainly made up of top connection 1, steel ball 2, spring 3, lower contact 4.Top connection 1 is two-way interchangeable type structure, and top connection screw thread is 27/8 " UPTBG box, inside is processed as upper and lower ball seat, and " UPTBG oil pipe is connected with going into the well 27/8 in top connection; At spring base inner chamber mounting spring 3 and the steel ball 2 successively of lower contact 4, upper lower contact is by 27/8 " UPTBG screwed connection puts in place; Compress Spring 3; steel ball 2 spring 3 effect under contact with the lower ball base of top connection 1; realize liquid opening circuit from top to bottom; the check action of path from top to bottom, single current is opened simultaneously needs certain opening pressure.
In this well Operating Pressure process, connect the reverse single current+Φ of scraper+Φ 73mmUPTBG oil pipe 1+φ 93.17mm Operating Pressure 73mmUPTBG oil pipe, lower brill scraping, in this process the reverse single current of Operating Pressure in closed condition (by borehole pressure, liquid shutoff is in well), finish in scraping, while pressing pressure testing in need to resisting oil pipe, drop into steel ball from oil pipe, connecting pump truck suppresses, now the reverse single current of Operating Pressure is opened, to the top pressure testing steel ball pressure that put in place, suppress as requested 25MPa, voltage stabilizing 30min, pressure drop be 0.5MPa qualified after, carry out pressure release, the reverse single current of Operating Pressure is closed, dismounting pipeline pulls out of hole.At the reverse single current of whole process Operating Pressure that makes a trip in closed condition, leakproof reliable operation.
As mentioned above, embodiment of the present utility model is explained, but as long as not departing from fact inventive point of the present utility model and effect can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, within such variation is also all included in protection domain of the present utility model.
Claims (5)
1. the reverse single flow device of Operating Pressure, is characterized in that top connection is with inner chamber ball seat, and inner chamber ball seat is upper ball base, lower ball base, and top connection is two-way interchangeable type structure, and the top connection screw thread of top connection is 2
7/
8" UPTBG box, top connection screw thread with go into the well 2
7/
8" UPTBG oil pipe is connected; Top connection is connected with lower contact, at spring base inner chamber mounting spring and the steel ball successively of lower contact.
2. the reverse single flow device of a kind of Operating Pressure according to claim 1, is characterized in that upper ball base, the lower ball base structure of top connection is symmetrical structure.
3. the reverse single flow device of a kind of Operating Pressure according to claim 1, is characterized in that steel ball size is greater than top connection internal diameter, has contact ring sphere.
4. the reverse single flow device of a kind of Operating Pressure according to claim 1, is characterized in that steel ball size is greater than spring inside diameter, has contact ring sphere.
5. the reverse single flow device of a kind of Operating Pressure according to claim 1, is characterized in that steel ball size, spring outer diameter are all less than lower contact spring base internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320704091.8U CN203626730U (en) | 2013-11-08 | 2013-11-08 | Reverse single current device of area pressure operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320704091.8U CN203626730U (en) | 2013-11-08 | 2013-11-08 | Reverse single current device of area pressure operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203626730U true CN203626730U (en) | 2014-06-04 |
Family
ID=50813219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320704091.8U Expired - Fee Related CN203626730U (en) | 2013-11-08 | 2013-11-08 | Reverse single current device of area pressure operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203626730U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469461A (en) * | 2018-12-06 | 2019-03-15 | 中国石油天然气股份有限公司 | Horizontal well subsection huff and puff sand control device |
| CN110671064A (en) * | 2019-10-30 | 2020-01-10 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Oil well sand washing liquid returning stop valve and using method thereof |
| CN115075756A (en) * | 2021-03-10 | 2022-09-20 | 中国石油天然气股份有限公司 | Gas well sand washing device |
-
2013
- 2013-11-08 CN CN201320704091.8U patent/CN203626730U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469461A (en) * | 2018-12-06 | 2019-03-15 | 中国石油天然气股份有限公司 | Horizontal well subsection huff and puff sand control device |
| CN109469461B (en) * | 2018-12-06 | 2023-09-26 | 中国石油天然气股份有限公司 | Sand control device is hugged and disbursed in horizontal well segmentation |
| CN110671064A (en) * | 2019-10-30 | 2020-01-10 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Oil well sand washing liquid returning stop valve and using method thereof |
| CN115075756A (en) * | 2021-03-10 | 2022-09-20 | 中国石油天然气股份有限公司 | Gas well sand washing device |
| CN115075756B (en) * | 2021-03-10 | 2023-09-26 | 中国石油天然气股份有限公司 | Sand washing device for gas well |
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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: 20140604 Termination date: 20211108 |