CN107143316A - Suitable for directional well and the Plunger Lift Novel plunger of horizontal well - Google Patents
Suitable for directional well and the Plunger Lift Novel plunger of horizontal well Download PDFInfo
- Publication number
- CN107143316A CN107143316A CN201710251019.7A CN201710251019A CN107143316A CN 107143316 A CN107143316 A CN 107143316A CN 201710251019 A CN201710251019 A CN 201710251019A CN 107143316 A CN107143316 A CN 107143316A
- Authority
- CN
- China
- Prior art keywords
- plunger
- cushion block
- well
- horizontal well
- spherical
- 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.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
Abstract
The invention provides a kind of Plunger Lift Novel plunger suitable for directional well and horizontal well, including spherical substrate and the arc cushion block that is covered in around matrix, pass through spring and guiding pin connection between spherical substrate and arc cushion block.The Plunger Lift Novel plunger for being suitable to directional well and horizontal well that the present invention is provided, can prevent the leakage of liquid and the slippage of gas in lifting process, improve lifting efficiency.The big dog-leg severity well section that the Novel plunger can be passed through in directional well or horizontal well reaches shaft bottom, realizes effective mining to high angle hole and Horizontal Well bottom hydrops.When running into oil pipe reducing, spherical plunger can be made to occur reducing by arc cushion block compression spring, so as to pass through oil pipe.Liquid flows in spherical plunger surface groove can be such that plunger is rolled on tubing wall, so as to mitigate the rubbing action between plunger and oil pipe, extend the service life of plunger.
Description
Technical field
The invention belongs to plunger used in oil gas field oil recovery gas recovery well Plunger Lift technique, more particularly to suitable for directional well and water
The Plunger Lift Novel plunger of horizontal well.
Background technology
Plunger Lift is as more conventional artificial lift measure, applied to part oil gas field.It is continuous with routine
Gaslift is compared, and Plunger Lift technique adds a solid interface between liquids and gases, prevents leakage and the gas of liquid
Slippage, so as to improve lifting efficiency.But conventional bar type plunger is only applicable to straight well or the less inclined shaft of dog-leg severity, it is impossible to logical
The big dog-leg severity well section of directional well or horizontal well is crossed, so that Plunger Lift technique can not be used, causes this part well available
Lifting technology reduce.Meanwhile, conventional plunger requires that tubing size is more consistent from top to bottom or change is little, but many wells by
In the presence of the factor such as tripping in oil pipe size heterogeneity or crimp so that a certain degree of reducing occurs for oil pipe, so as to cause
The application of conventional plunger technique is limited or can not use Plunger Lift technique.
Research on plunger used in directional well and horizontal well is less, and Li Chen et al. has invented a kind of liner type water pumping gas production
Plunger, including body and positioned at the guide head of body bottom and body by screwed connection, the outer surface of body is embedded with cushion block,
Connected between cushion block and body by guide finger and spring, but the plunger is only applicable to straight well or the less inclined shaft of dog-leg severity.
ZIMMERMAN et al. has invented a kind of spherical plunger suitable for high angle hole, and the spherical plunger surface, which is provided with many, to be run through
The aperture of spheroid sets spiral groove in spherome surface, but the spherical plunger is fixed dimension, and card can be met at pipe with small pipe diameter,
Liquid is missed at Large Diameter Pipeline, and lifting effect is deteriorated.Patent of the present invention plunger profile is set to it is spherical, can by appoint
The lower curved section of what dog-leg severity realizes effective carrying to shaft bottom liquid, including directional well and horizontal well so as to smoothly reach shaft bottom.
Spherical plunger surface is provided with 6 arc cushion blocks, is uniformly covered in spherical substrate surface, and keep necessarily with spherical substrate
Distance, is connected by spring and guide finger with spherical substrate.In the presence of external force, by arc cushion block compression spring, it can make
Spherical plunger reducing, so that the oil pipe of different inner diameters is passed through, while sealing effectiveness can be ensured.In lifting process, liquid
Body can flow along the groove of spherical plunger surface, spherical plunger is constantly in rolling condition, mitigate plunger and tubing wall
Between friction, extension
The content of the invention
It is an object of the invention to provide a kind of suitable for directional well and the Plunger Lift Novel plunger of horizontal well, it is intended to solve
Directional well and horizontal well can not use conventional bar type plunger to carry out the problems such as artificial lift, plunger can not be by pipe with small pipe diameter oil pipes.
Suitable for directional well and the Plunger Lift Novel plunger of horizontal well, the device is by spherical substrate, arc cushion block, guiding
Pin and spring composition, can replace conventional bar type plunger tripping in directional well and horizontal well to carry out artificial lift.
The Plunger Lift suitable for directional well and horizontal well is alloy steel material with Novel plunger, by spherical substrate and arc
Shape cushion block by spring and be oriented to pin connection constitute, a total of 6 of arc cushion block, be divided into above and below two groups be uniformly covered on it is spherical
Matrix surface, and certain distance is kept with spherical substrate, send out can under external force by cushion block compression spring spherical plunger
Change footpath.
The spherical substrate surface is provided with 18 pilot holes and 6 and spring eye, is respectively intended to install guide finger and spring,
The axis of the pilot hole and spring eye is directed to the centre of sphere direction of spherical substrate.Above and below the spherical substrate in two-stage and spheroid
Between position be provided with T-shaped neck, coordinate guide finger, arc cushion block be fixed on spherical substrate surface fixed position.
The arc cushion block inner surface setting has corresponding with spherical substrate pilot hole and spring eye, convenient to pass through guide finger
It is connected with spring with spherical substrate.The arc cushion block upper and lower ends be set to it is step-like, can with two-stage above and below spherical substrate and
Middle T-shaped neck engagement, makes cushion block can not separable spherical matrix.
The present invention is from new angle, for the purpose of the problem for solving directional well and horizontal well Plunger Lift technique, leads to
Cross and be changed to plunger shape spherical, allow it by the Oil/gas Well of any dog-leg severity, add the application of Plunger Lift.
By the spring cushion block structure of plunger surface, plunger can be made to realize reducing, adapt it to the oil pipe of different tube diameters size, and reached
To sealing effectiveness, the leakage of liquid and the slippage of gas are prevented.Groove between upper lower cushion block group staggers certain angle, prevents
Liquid is missed by groove, improves lifting efficiency.Liquid flows in the groove of spherical plunger surface and plunger can be made continuous simultaneously
In rolling condition, the friction loss with tubing wall is reduced, increases the service life of plunger.
Brief description of the drawings
Fig. 1 is the present invention suitable for directional well and the structural representation of the Plunger Lift Novel plunger of horizontal well；
Fig. 2 is the present invention suitable for directional well and the profile of the Plunger Lift Novel plunger of horizontal well；
Fig. 3 is structural representation of the present invention suitable for directional well and the Plunger Lift Novel plunger spherical substrate of horizontal well
Figure；
Fig. 4 is structural representation of the present invention suitable for directional well and the Plunger Lift Novel plunger arc cushion block of horizontal well
Figure.
Fig. 5 is the present invention suitable for directional well and the simple profile of the Plunger Lift Novel plunger of horizontal well.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
As shown in figures 1-4, wherein, Fig. 1 is Plunger Lift Novel plunger of the present invention suitable for directional well and horizontal well
Structural representation；Fig. 2 is the present invention suitable for directional well and the profile of the Plunger Lift Novel plunger of horizontal well；Fig. 3 is this
Invention is suitable for directional well and the structural representation of the Plunger Lift Novel plunger spherical substrate of horizontal well；Fig. 4 is that the present invention is suitable
In the structural representation of the Plunger Lift Novel plunger arc cushion block of directional well and horizontal well.
Suitable for directional well and the Plunger Lift Novel plunger of horizontal well, including spherical substrate 1, arc cushion block 2, middle supporting ring
3, upper lower fulcrum 4, spring 5, pin hole 6, latch 7, spring eye 8；
The Plunger Lift suitable for directional well and horizontal well is alloy steel material with Novel plunger, including spherical substrate and
Arc cushion block two large divisions, by spring and is oriented to pin connection, above and below arc cushion block is divided between arc cushion block and spherical substrate
Two groups are uniformly covered in spherical substrate surface, and keep certain distance with spherical substrate respectively.
The spherical substrate outer surface is provided with 18 pilot holes and 6 spring eyes, and its axis passes through spherical substrate
The centre of sphere.The inner surface corresponding position of the arc cushion block is again provided with pilot hole and spring eye, axis and spherical substrate table
The axially bored line in face is overlapped.Two-stage and centre are provided with T-shaped fulcrum neck above and below the spherical substrate, convenient that arc cushion block is carried out
It is fixed.
When spherical plunger is run in oil pipe, 0~1mm gap is kept between normal condition lower plunger and tubing wall,
When running into caliber diminution, tube wall applies an extruding force on spherical plunger, and extruding force is made by arc cushion block compression spring
Spherical diameter of plunger reduces, so as to pass through at oil pipe reducing, when tube wall recovers normal, under the action of the spring arc-shaped pad
Block is upspring, and plunger restores to the original state.
The arc cushion block includes two groups up and down altogether, every group 3, is connected by spring and guide finger with spherical substrate.Institute
The lower edges for stating arc cushion block are set to step-like, can coordinate with the middle supporting ring of spherical substrate and upper lower fulcrum, while leading
To in the presence of pin, arc cushion block is fixed on to a certain fixed position on spherical substrate surface.
The pilot hole includes 6 groups, including the first pilot hole, the second pilot hole and the 3rd pilot hole accordingly, and three are led
To the hole outer surface triangular in shape for being distributed in spherical substrate and the inner surface of arc cushion block, spring eye is located at the center of triangle
The heart.Coordinate between the guide finger and spherical substrate for gap, be interference fit between arc cushion block.
The cushion block structure suitable for directional well and the Plunger Lift Novel plunger of horizontal well can be realized to plunger upper part
The isolating seal of liquid and lower gas, prevents the leakage of liquid and the slippage of gas, and the spherical plunger surface is provided with ditch
Groove, liquid can along groove flowing so that spherical plunger constantly be in rolling condition, reduce the friction loss between tube wall,
Upper lower groove staggers certain angle, prevents liquid from being leaked along groove, improves lifting efficiency.
The Plunger Lift suitable for directional well and horizontal well can be applied to larger all kinds of of dog-leg severity with Novel plunger and adopt
Oily gas recovery well, including directional well and horizontal well, have widened the application of Plunger Lift.
Compared to the shortcoming and defect of prior art, the invention has the advantages that：
1) lower curved section of any dog-leg severity can be passed through by being suitable to directional well and the Plunger Lift Novel plunger of horizontal well,
Including directional well and horizontal well, using not limited by well type；
2) cushion block structure can make spherical plunger occur reducing, so as to pass through at oil pipe reducing, while ensureing to plunger
The isolating seal of upper liquid and lower gas；
3) liquid flows in spherical plunger surface groove can make plunger constantly be in rolling condition, reduce plunger and oil pipe
Friction loss between wall；
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (5)
1. suitable for directional well and the Plunger Lift Novel plunger of horizontal well, including spherical substrate and arc cushion block, its feature exists
In：By spring and guiding pin connection between spherical substrate and arc cushion block, arc cushion block is covered in around spherical substrate, outside
By arc cushion block compression spring spherical plunger can be made to occur reducing in the presence of power.
2. as claimed in claim 1 suitable for directional well and the Plunger Lift Novel plunger of horizontal well, it is characterised in that：It is described
Arc cushion block includes two groups up and down, and upper half ball surface of the upper cushion block group by three points of cushion blocks along the spherical substrate is uniformly divided
Cloth, lower half ball surface of the lower cushion block group by three points of cushion blocks along the spherical substrate is uniformly distributed.
3. as claimed in claim 2 suitable for directional well and the Plunger Lift Novel plunger of horizontal well, it is characterised in that：It is described
Include three guide fingers and distribution triangular in shape under cushion block, spring is arranged on triangle center location.
4. as claimed in claim 3 suitable for directional well and the Plunger Lift Novel plunger of horizontal well, it is characterised in that：It is described
Guide finger and spring being radially arranged along the spherical substrate.
5. as claimed in claim 4 suitable for directional well and the Plunger Lift Novel plunger of horizontal well, it is characterised in that：It is described
The section of middle supporting ring and upper lower fulcrum is T-shaped, and position-limiting action is played to the cushion block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710251019.7A CN107143316A (en) | 2017-04-18 | 2017-04-18 | Suitable for directional well and the Plunger Lift Novel plunger of horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710251019.7A CN107143316A (en) | 2017-04-18 | 2017-04-18 | Suitable for directional well and the Plunger Lift Novel plunger of horizontal well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107143316A true CN107143316A (en) | 2017-09-08 |
Family
ID=59774716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710251019.7A Pending CN107143316A (en) | 2017-04-18 | 2017-04-18 | Suitable for directional well and the Plunger Lift Novel plunger of horizontal well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107143316A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253447A (en) * | 2020-10-21 | 2021-01-22 | 西南石油大学 | Be suitable for new plunger of local undergauge plunger drainage gas production of tubular column in pit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8181706B2 (en) * | 2009-05-22 | 2012-05-22 | Ips Optimization Inc. | Plunger lift |
| CN203114252U (en) * | 2013-02-22 | 2013-08-07 | 延长油田股份有限公司 | Sealed type water drainage and gas production plunger for natural gas horizontal well |
| CN104389782A (en) * | 2014-12-02 | 2015-03-04 | 中国石油天然气股份有限公司 | Cushioned drainage and gas production plunger |
| CN104632145A (en) * | 2015-02-06 | 2015-05-20 | 中国石油天然气股份有限公司 | Plunger used for gas well water drainage |
| US20150322753A1 (en) * | 2014-05-06 | 2015-11-12 | Integrated Production Services, Inc. | Ball plunger lift system for high deviated wellbores |
-
2017
- 2017-04-18 CN CN201710251019.7A patent/CN107143316A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8181706B2 (en) * | 2009-05-22 | 2012-05-22 | Ips Optimization Inc. | Plunger lift |
| CN203114252U (en) * | 2013-02-22 | 2013-08-07 | 延长油田股份有限公司 | Sealed type water drainage and gas production plunger for natural gas horizontal well |
| US20150322753A1 (en) * | 2014-05-06 | 2015-11-12 | Integrated Production Services, Inc. | Ball plunger lift system for high deviated wellbores |
| CN104389782A (en) * | 2014-12-02 | 2015-03-04 | 中国石油天然气股份有限公司 | Cushioned drainage and gas production plunger |
| CN104632145A (en) * | 2015-02-06 | 2015-05-20 | 中国石油天然气股份有限公司 | Plunger used for gas well water drainage |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253447A (en) * | 2020-10-21 | 2021-01-22 | 西南石油大学 | Be suitable for new plunger of local undergauge plunger drainage gas production of tubular column in pit |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170908 |