CN107091069A - A kind of gaslift piston - Google Patents
A kind of gaslift piston Download PDFInfo
- Publication number
- CN107091069A CN107091069A CN201710267369.2A CN201710267369A CN107091069A CN 107091069 A CN107091069 A CN 107091069A CN 201710267369 A CN201710267369 A CN 201710267369A CN 107091069 A CN107091069 A CN 107091069A
- Authority
- CN
- China
- Prior art keywords
- piston
- gaslift
- head
- seal head
- sealing shroud
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 230000007306 turnover Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000011176 pooling Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 15
- 238000004519 manufacturing process Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/122—Gas lift
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses a kind of gaslift piston, the piston includes：Sealing shroud, guiding gutter is provided with the outer peripheral face of the sealing shroud, sealing shroud two ends are equipped with the upper seal head and lower seal head that can be moved axially, and the upper seal head, lower seal head and the sealing shroud inwall are encircled into annular seal space, the annular seal space filled with pressed gas.The gaslift piston of the present invention, simple in construction, intensity is high, and global density is low, Yi Fanpai, and with pooling feature, substantially increases the fluid-carrying capability of piston.
Description
Technical field
The present invention relates to oil extraction in oil field, production gas technology field, more particularly to a kind of gaslift piston.
Background technology
Using gaslift piston gas drainage gas recovery in gas well extensive use, piston global density presently, there are greatly,
When gas well energy is not enough, the phenomenon that counter can not be discharged usually occurs；After wellhead control valve closing, piston is high in tubing string
Speed is descending, falls on behind bottom while can produce impact to bottom tubing string stopping means, gaslift piston is in itself also by certain journey
The damage of degree.
The content of the invention
For problems of the prior art, used it is an object of the invention to provide a kind of in gas-lift production method
Gaslift piston.
To achieve the above object, technical scheme is as follows：
A kind of gaslift piston, the piston includes：Be provided with sealing shroud, the outer peripheral face of the sealing shroud communication seals set top and
The guiding gutter of lower section, sealing shroud two ends are equipped with the upper seal head and lower seal head that can move axially, the upper seal head, described
Lower seal head and sealing shroud inwall are encircled into annular seal space, the annular seal space filled with pressed gas.
Further, the filling channel of pressed gas is provided with the upper seal head, the filling channel end is provided with
Seal plug for closing the annular seal space.
Further, it is provided with the inwall of the sealing set upper side in the jump-ring slot of annular, the jump-ring slot and card is installed
Spring, the jump ring is blocked on the data feedback channel of the upper seal head.
Further, the sealing shroud lower end is provided with the step for the turnover that concaves, and the step is blocked in the lower sealing
On the down going channel of head.
Further, it is provided with seizure head on the upper seal head.
Further, the seizure head is ball-type.
Further, it is provided with buffer head on the lower seal head.
Further, the buffer head is ball-type.
The gaslift piston of the present invention, simple in construction, intensity is high, and global density is low, Yi Fanpai, and has pooling feature, greatly
The big fluid-carrying capability for improving piston.
Brief description of the drawings
Fig. 1 is the schematic diagram of gaslift piston of the present invention；
Wherein, seal head, 1.1 catch heads, 1.2 filling channels, 2 seal plugs, 3 jump rings, 4 sealing shrouds, 4.1 jump-ring slots, 4.2 on 1
Step, 4.3 guiding gutters, 5 annular seal spaces, 6 times seal heads, 6.1 buffer heads.
Embodiment
The present invention is more fully illustrated below with embodiment.The present invention can be presented as a variety of multi-forms,
It is not construed as the exemplary embodiment for being confined to describe here.
For ease of explanation, the space relative terms such as " on ", " under ", "left", "right" can be used herein, are used for
The element or feature shown in explanation figure is relative to another element or the relation of feature.It should be understood that except figure
In outside the orientation that shows, spatial terminology is intended to include the different azimuth of device in use or operation.If for example, in figure
Device be squeezed, be stated as being located at other elements or feature " under " element will be located into other elements or feature " on ".
Therefore, exemplary term " under " can be both comprising upper and lower orientation.Device can be positioned otherwise（It is rotated by 90 ° or position
In other orientation）, can correspondingly be explained used herein of the relative explanation in space.
Gaslift piston as shown in Figure 1, including：One hollow and the sealing shroud 4 without wall, the outer peripheral face of sealing shroud 4 up and down
On offer guiding gutter 4.3, guiding gutter 4.3 can be set above and below communication seals set 4 on the inwall of the upper end of sealing shroud 4
Have in the jump-ring slot 4.1 of annular, jump-ring slot 4.1 and jump ring 3 is installed, the lower end of sealing shroud 4 is provided with the step for the turnover that concaves
4.2, jump ring 3 and step 4.2 constitute position limiting structure.
The two ends of sealing shroud 4 are equipped with the upper seal head 1 and lower seal head 6 that can be moved axially, upper seal head 1 and lower seal head
Sealing ring is carried on 6, it is ensured that keep contacting with the inwall of sealing shroud 4 in the moving process of upper seal head 1 and lower seal head 6
Sealing, upper seal head 1, lower seal head 6 and the inwall of sealing shroud 4 are encircled into annular seal space 5, annular seal space 5 filled with pressed gas, jump ring
3 are blocked on the data feedback channel of seal head 1, and step 4.2 is blocked on the down going channel of lower seal head 6.
The top of upper seal head 1 is provided with the seizure first 1.1 of ball-type, upper seal head 1 and is provided with filling channel 1.2,
The lower end of filling channel 1.2 is provided with seal plug 2, and top is opened after seal plug 2 downwards, and pressed gas is filled with by filling channel 1.2
In annular seal space 5, after inflation, gas enables seal plug 2 that gas passage 1.2 is close outwardly against seal plug 2 in annular seal space 5
Closure, it is ensured that the pressure of gas in annular seal space 5.
The end of lower seal head 6 is provided with the buffer head 6.1 of ball-type, in the present embodiment, upper seal head 1 and lower seal head
6 function and structure is essentially identical, therefore when in use, gaslift piston, which can turn upside down, to be used.
In use, after by lubricator, the gaslift piston is delivered into gas lift string, gaslift piston adds by self gravitation
Speed sinks to tubing string bottom and spacing, and under the effect of its mesohigh elasticity of gases of annular seal space 5, gaslift piston is buffered；Tubing string
Water in lower parts casing pipe reaches gaslift upper piston area by the guiding gutter 4.3 on gaslift piston outer periphery face, when well head pressure reaches
During certain value, gaslift control valve automatically opens up production, now, and gaslift piston is up under borehole pressure effect, carries its top
Water is up to up to well head together, and water is discharged into manifold of ground；When gaslift piston is reached in well head jet pipe, gaslift control valve is certainly
Dynamic to close, gaslift piston accelerates to sink to tubing string bottom and spacing by self gravitation, repeats said process and realizes gas well drainer
Skill.
Several preferred embodiments of the application, but the application not limited to this, every ability are only described above in association with accompanying drawing
Domain those of ordinary skill is not in the case where departing from spirit herein, and any improvement and/or deformation made belong to the guarantor of the application
Protect scope.
Claims (8)
1. a kind of gaslift piston, it is characterised in that the piston includes：It is provided with and leads on sealing shroud, the outer peripheral face of the sealing shroud
Chute, sealing shroud two ends are equipped with the upper seal head and lower seal head that can be moved axially, the upper seal head, the lower seal head
It is encircled into sealing shroud inwall in annular seal space, the annular seal space filled with pressed gas.
2. gaslift piston as claimed in claim 1, it is characterised in that the inflation of pressed gas is provided with the upper seal head
Passage, the filling channel end is provided with the seal plug for closing the annular seal space.
3. gaslift piston as claimed in claim 1, it is characterised in that annular is provided with the inwall of the sealing set upper side
Jump ring is installed, the jump ring is blocked on the data feedback channel of the upper seal head in jump-ring slot, the jump-ring slot.
4. gaslift piston as claimed in claim 1, it is characterised in that the sealing shroud lower end is provided with the platform for the turnover that concaves
Rank, the step is blocked on the down going channel of the lower seal head.
5. gaslift piston as claimed in claim 1, it is characterised in that be provided with seizure head on the upper seal head.
6. gaslift piston as claimed in claim 5, it is characterised in that the seizure head is ball-type.
7. gaslift piston as claimed in claim 1, it is characterised in that be provided with buffer head on the lower seal head.
8. gaslift piston as claimed in claim 7, it is characterised in that the buffer head is ball-type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710267369.2A CN107091069A (en) | 2017-04-21 | 2017-04-21 | A kind of gaslift piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710267369.2A CN107091069A (en) | 2017-04-21 | 2017-04-21 | A kind of gaslift piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107091069A true CN107091069A (en) | 2017-08-25 |
Family
ID=59637910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710267369.2A Withdrawn CN107091069A (en) | 2017-04-21 | 2017-04-21 | A kind of gaslift piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107091069A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253059A (en) * | 2020-10-19 | 2021-01-22 | 中建四局土木工程有限公司 | Central well completion pipe string for gas lift production and gas lift construction method |
Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2878754A (en) * | 1956-05-18 | 1959-03-24 | Harold Brown Company | Fluid lift plunger for wells |
| SU1040124A1 (en) * | 1982-01-25 | 1983-09-07 | Ивано-Франковский Институт Нефти И Газа | Plunger for plunger lift |
| US4747466A (en) * | 1983-09-06 | 1988-05-31 | Jaworski Bill L | Impact tool |
| US5069242A (en) * | 1991-01-25 | 1991-12-03 | Otis Engineering Corporation | Gas lift valve utilizing a diaphragm pilot |
| US5127803A (en) * | 1990-02-16 | 1992-07-07 | Walter James C | Pump tool |
| AU2243400A (en) * | 1995-11-02 | 2000-06-01 | Mcgarry, John E. | Producing well artificial lift system control |
| CA2521013A1 (en) * | 1999-05-14 | 2000-11-14 | Mgm Well Service, Inc. | Plunger lift piston |
| CN2424057Y (en) * | 2000-06-09 | 2001-03-21 | 黄培华 | Pneumatic controlled lifting valve |
| CN2451735Y (en) * | 2000-11-03 | 2001-10-03 | 中国石油天然气股份有限公司 | Capillary tube pressure monitoring pressure transmission cylinder in well |
| CN2613654Y (en) * | 2003-03-08 | 2004-04-28 | 吉林大学 | Pressure-reducing regulator for LPG |
| CA2428618A1 (en) * | 2003-05-13 | 2004-11-13 | Murray Ray Townsend | Plunger for gas wells |
| CN101105119A (en) * | 2006-07-11 | 2008-01-16 | 刘克文 | Pumping unit balance adjusting apparatus and pumping unit balance structure adjusting method |
| CA2651083A1 (en) * | 2008-01-25 | 2009-07-25 | Weatherford/Lamb, Inc. | Plunger lift system for well |
| CN201344911Y (en) * | 2008-12-25 | 2009-11-11 | 中国建筑材料检验认证中心 | Thin film-type gas density stabilizer |
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| CN202338481U (en) * | 2011-11-25 | 2012-07-18 | 中国石油天然气股份有限公司 | Automatic liquid-discharging plunger for gas well |
| CN103133340A (en) * | 2011-11-25 | 2013-06-05 | 中国石油天然气股份有限公司 | Automatic liquid-discharging plunger for gas well |
| CN103502027A (en) * | 2011-05-04 | 2014-01-08 | 康蒂泰克空气弹簧系统有限公司 | Rolling piston for an air spring rolling bellows |
| CN104632145A (en) * | 2015-02-06 | 2015-05-20 | 中国石油天然气股份有限公司 | Plunger for gas well drainage |
| CN106274787A (en) * | 2016-08-04 | 2017-01-04 | 泰州市易通车件有限公司 | A kind of intelligence aerating gasbag |
| CN106499623A (en) * | 2016-10-14 | 2017-03-15 | 中国石油天然气股份有限公司 | Production method and application of plunger with buffer and gas lift liquid drainage |
-
2017
- 2017-04-21 CN CN201710267369.2A patent/CN107091069A/en not_active Withdrawn
Patent Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2878754A (en) * | 1956-05-18 | 1959-03-24 | Harold Brown Company | Fluid lift plunger for wells |
| SU1040124A1 (en) * | 1982-01-25 | 1983-09-07 | Ивано-Франковский Институт Нефти И Газа | Plunger for plunger lift |
| US4747466A (en) * | 1983-09-06 | 1988-05-31 | Jaworski Bill L | Impact tool |
| US5127803A (en) * | 1990-02-16 | 1992-07-07 | Walter James C | Pump tool |
| US5069242A (en) * | 1991-01-25 | 1991-12-03 | Otis Engineering Corporation | Gas lift valve utilizing a diaphragm pilot |
| AU2243400A (en) * | 1995-11-02 | 2000-06-01 | Mcgarry, John E. | Producing well artificial lift system control |
| CA2521013A1 (en) * | 1999-05-14 | 2000-11-14 | Mgm Well Service, Inc. | Plunger lift piston |
| CN2424057Y (en) * | 2000-06-09 | 2001-03-21 | 黄培华 | Pneumatic controlled lifting valve |
| CN2451735Y (en) * | 2000-11-03 | 2001-10-03 | 中国石油天然气股份有限公司 | Capillary tube pressure monitoring pressure transmission cylinder in well |
| CN2613654Y (en) * | 2003-03-08 | 2004-04-28 | 吉林大学 | Pressure-reducing regulator for LPG |
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| US20040226713A1 (en) * | 2003-05-13 | 2004-11-18 | Townsend Murray Ray | Plunger for gas wells |
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| CN201344911Y (en) * | 2008-12-25 | 2009-11-11 | 中国建筑材料检验认证中心 | Thin film-type gas density stabilizer |
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| ITVA20100032A1 (en) * | 2010-04-08 | 2011-10-09 | Metau Engineering S R L | "PIPE-LESS" HYDRAULIC LIFT |
| CN103502027A (en) * | 2011-05-04 | 2014-01-08 | 康蒂泰克空气弹簧系统有限公司 | Rolling piston for an air spring rolling bellows |
| CN202338481U (en) * | 2011-11-25 | 2012-07-18 | 中国石油天然气股份有限公司 | Automatic liquid-discharging plunger for gas well |
| CN103133340A (en) * | 2011-11-25 | 2013-06-05 | 中国石油天然气股份有限公司 | Automatic liquid-discharging plunger for gas well |
| CN104632145A (en) * | 2015-02-06 | 2015-05-20 | 中国石油天然气股份有限公司 | Plunger for gas well drainage |
| CN106274787A (en) * | 2016-08-04 | 2017-01-04 | 泰州市易通车件有限公司 | A kind of intelligence aerating gasbag |
| CN106499623A (en) * | 2016-10-14 | 2017-03-15 | 中国石油天然气股份有限公司 | Production method and application of plunger with buffer and gas lift liquid drainage |
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| Title |
|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253059A (en) * | 2020-10-19 | 2021-01-22 | 中建四局土木工程有限公司 | Central well completion pipe string for gas lift production and gas lift construction method |
| CN112253059B (en) * | 2020-10-19 | 2024-04-09 | 中建四局土木工程有限公司 | Center well completion pipe column for gas lift production and gas lift construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170825 |