CN106014304A - Swirling flow device for well cementation - Google Patents
Swirling flow device for well cementation Download PDFInfo
- Publication number
- CN106014304A CN106014304A CN201610502242.XA CN201610502242A CN106014304A CN 106014304 A CN106014304 A CN 106014304A CN 201610502242 A CN201610502242 A CN 201610502242A CN 106014304 A CN106014304 A CN 106014304A
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- China
- Prior art keywords
- well cementation
- plate
- swirl
- flow devices
- hole
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Classifications
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- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of swirling flow devices and provides a swirling flow device for well cementation. The device comprises a body, a fixing annular plate, a center shaft, a first porous plate, a second porous plate, a mushroom-shaped float collar and a baffle. The fixing annular plate, the first porous plate, the second porous plate and the baffle are fixed in the body at intervals from left to right, the two ends of the center shaft are installed in the fixing annular plate and the first porous plate through bearings respectively, at least three impellers are fixedly installed on the center shaft, at least six circulating holes are formed in the positions, corresponding to the body, of the center shaft, and at least two first through holes are formed in the first porous plate. The swirling flow device is reasonable and compact in structure and convenient to use, in the well cementation replacement process, drilling fluid drives the impellers to rotate, the impellers continuously inject the rotating drilling fluid into an annulus through the circulating holes, the well wall can be better cleaned by means of the rotating and turbulent drilling fluid, mud cakes are carried, risks generated when sleeves are put down are reduced, and well cementation is greatly helped.
Description
Technical field
The present invention relates to swirl-flow devices technical field, be a kind of well cementation swirl-flow devices.
Background technology
In reinforcing oil well operation, sleeve pipe smooth under enter and later stage height displacement efficiency of cementing the well is for reinforcing oil well operation
Be smoothed out critically important, later stage cementing quality is also had a certain impact, in actual reinforcing oil well and setting of casing process simultaneously
In, due to reasons such as the borehole wall are unclean, mud cake, during setting of casing, increase sleeve pipe frictional resistance, be unfavorable under sleeve pipe entering.
Summary of the invention
The invention provides a kind of well cementation swirl-flow devices, overcome the deficiency of above-mentioned prior art, it can effectively solve
Due to reasons such as the borehole wall is unclean, mud cakes, during setting of casing, increase sleeve pipe frictional resistance, be unfavorable for the problem entered under sleeve pipe.
The technical scheme is that and realized by following measures: a kind of well cementation swirl-flow devices, including body, consolidate
Determine ring flat-plate, central shaft, the first orifice plate, the second orifice plate, in the left narrow mushroom float collar of right width and baffle plate, this most internal from left to right between
Every being fixed with fixing ring flat-plate, the first orifice plate, the second orifice plate and baffle plate, the two ends of central shaft are arranged on retainer ring by bearing respectively
In plate and the first orifice plate, central shaft being installed with at least three impeller, the body corresponding with central shaft is provided with at least six
Individual circulation port, the first orifice plate is provided with at least two the first through hole, and the second orifice plate is provided with at least two the second through hole, baffle plate
Center is provided with linked hole, and float collar right-hand member withstands on linked hole, and float collar left end is sleeved in the middle part of the second orifice plate, at the left part set of float collar
Equipped with the compression spring in compression shape.
Further optimization and/or improvements to foregoing invention technical scheme are presented herein below:
Above-mentioned body left end is dome-type.
Above-mentioned circulation port is eight.
Above-mentioned body right-hand member inner side and outer side is provided with screw thread.
Above-mentioned first through hole is right wide left narrow inclined hole.
It is provided with sealing ring between inside above-mentioned baffle plate and body.
Present configuration is reasonable and compact, easy to use, and in well cementation displacement process, drilling fluid drives impeller to rotate, leaf
The drilling fluid rotated constantly is injected annular space by circulation port by wheel, and the drilling fluid rotating turbulent flow can preferably clean the borehole wall,
Carry mud cake, reduce setting of casing risk, well cementation is very helpful simultaneously.
Accompanying drawing explanation
Accompanying drawing 1 is that the master of preferred embodiment regards sectional structure schematic diagram.
Master when accompanying drawing 2 works for the present invention regards sectional structure schematic diagram.
It is body that coding in accompanying drawing is respectively as follows: 1, and 2 is fixing ring flat-plate, and axle centered by 3,4 is the first orifice plate, and 5 is second
Orifice plate, 6 is float collar, and 7 is baffle plate, and 8 is bearing, and 9 is the first through hole, and 10 is impeller, and 11 is circulation port, and 12 is linked hole, and 13 are
Compression spring, 14 is the second through hole, and 15 is screw thread, and 16 is sealing ring.
Detailed description of the invention
The present invention is not limited by following embodiment, can determine specifically according to technical scheme and practical situation
Embodiment.
In the present invention, for the ease of describing, the description of the relative position relation of each parts is all according to Figure of description
Butut mode be described, such as: the position relationship of upper and lower, left and right etc. is based on the Butut direction of Figure of description to be come
Determine.
Below in conjunction with embodiment and accompanying drawing, the invention will be further described:
As shown in accompanying drawing 1,2, this well cementation swirl-flow devices includes body 1, fixing ring flat-plate 2, central shaft the 3, first orifice plate 4, second
Orifice plate 5, in left narrow right wide mushroom float collar 6 and baffle plate 7, in body 1, interval is fixed with fixing ring flat-plate 2, first from left to right
Orifice plate the 4, second orifice plate 5 and baffle plate 7, the two ends of central shaft 3 are arranged on fixing ring flat-plate 2 and the first orifice plate 4 by bearing 8 respectively
In, central shaft 3 is installed with at least three impeller 10, the body 1 corresponding with central shaft 3 is provided with at least six circulation port
11, the first orifice plate 4 is provided with at least two the first through hole 9, and the second orifice plate 5 is provided with at least two the second through hole 14, baffle plate 7
Center is provided with linked hole 12, and float collar 6 right-hand member withstands on linked hole 12, and float collar 6 left end is sleeved in the middle part of the second orifice plate 5, at float collar 6
Left part be set with in compression shape compression spring 13.During use, the present invention is connected to bunch tube lower end, in setting of casing process
In, drilling fluid thrust promotes compression spring 13 to produce circulation canal, and drilling fluid flows through the on the second orifice plate 5 by linked hole 12
After two through holes 14 enter the first through hole 9 on the first orifice plate 4, drilling fluid alignment impeller 10, thus in the impetus of drilling fluid
Under, make central shaft 3 rotate, the rotation of central shaft 3 makes the drilling fluid flow through that turbulent flow to occur, such that it is able to play the work cleaning the borehole wall
With；In well cementing process, the displacement efficiency of turbulence replacement liquid is best, and it is disorderly that the present invention can make displacement fluid occur in displacement process
Stream, thus improve displacement efficiency, well cementation is had very great help.
According to actual needs above-mentioned well cementation swirl-flow devices can be made further optimization and/or improvements:
As shown in accompanying drawing 1,2, in order to reduce the resistance in well cementing process, body 1 left end is dome-type.
As shown in accompanying drawing 1,2, in order to make drilling fluid preferably occur turbulent flow, circulation port 11 to be eight.
As shown in accompanying drawing 1,2, body 1 right-hand member inner side and outer side is provided with screw thread 15.So, it is simple to be connected with bunch tube.
As shown in accompanying drawing 1,2, the first through hole 9 is right wide left narrow inclined hole.Angle of inclination is preferably 30 degree, so can be more preferable
Make drilling fluid promote impeller.As shown in accompanying drawing 1,2, for the ease of seal, inside baffle plate 7 and body 1 between be provided with sealing ring
16。
Above technical characteristic constitutes highly preferred embodiment of the present invention, and it has stronger adaptability and most preferably implements effect
Really, non-essential technical characteristic can be increased and decreased according to actual needs, meet the demand of different situations.
Claims (10)
1. a well cementation swirl-flow devices, it is characterised in that include body, fixing ring flat-plate, central shaft, the first orifice plate, the second hole
Plate, in the left narrow mushroom float collar of right width and baffle plate, this most internal interval from left to right be fixed with fixing ring flat-plate, the first orifice plate, the
Two orifice plates and baffle plate, the two ends of central shaft are arranged in fixing ring flat-plate and the first orifice plate by bearing respectively, fixing on central shaft
Being provided with at least three impeller, the body corresponding with central shaft is provided with at least six circulation port, and the first orifice plate is provided with at least
Two the first through holes, the second orifice plate is provided with at least two the second through hole, and baffle center is provided with linked hole, and float collar right-hand member withstands on
On linked hole, float collar left end is sleeved in the middle part of the second orifice plate, and the left part at float collar is set with the compression spring in compression shape.
Well cementation swirl-flow devices the most according to claim 1, it is characterised in that body left end is dome-type.
Well cementation swirl-flow devices the most according to claim 1 and 2, it is characterised in that circulation port is eight.
Well cementation swirl-flow devices the most according to claim 1 and 2, it is characterised in that body right-hand member inner side and outer side is provided with spiral shell
Stricture of vagina.
Well cementation swirl-flow devices the most according to claim 3, it is characterised in that body right-hand member inner side and outer side is provided with screw thread.
6. according to the well cementation swirl-flow devices described in claim 1 or 2 or 5, it is characterised in that the first through hole is right wide left narrow
Inclined hole.
Well cementation swirl-flow devices the most according to claim 4, it is characterised in that the first through hole is right wide left narrow inclined hole.
8. according to the well cementation swirl-flow devices described in claim 1 or 2 or 5 or 7, it is characterised in that between inside baffle plate and body
It is provided with sealing ring.
Well cementation swirl-flow devices the most according to claim 4, it is characterised in that be provided with sealing between inside baffle plate and body
Circle.
Well cementation swirl-flow devices the most according to claim 6, it is characterised in that be provided with sealing between inside baffle plate and body
Circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610502242.XA CN106014304A (en) | 2016-06-30 | 2016-06-30 | Swirling flow device for well cementation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610502242.XA CN106014304A (en) | 2016-06-30 | 2016-06-30 | Swirling flow device for well cementation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106014304A true CN106014304A (en) | 2016-10-12 |
Family
ID=57105361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610502242.XA Pending CN106014304A (en) | 2016-06-30 | 2016-06-30 | Swirling flow device for well cementation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106014304A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100554A (en) * | 2017-05-31 | 2017-08-29 | 中国石油集团西部钻探工程有限公司 | Well cementation vibration pipe nipple |
| CN108756808A (en) * | 2018-05-14 | 2018-11-06 | 中国石油集团西部钻探工程有限公司 | Well cementation self-oscillation float collar |
| CN111734405A (en) * | 2020-06-29 | 2020-10-02 | 中国石油天然气集团有限公司 | Device for improving accuracy of flushing efficiency of pad by pad fluid in well cementation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5261486A (en) * | 1992-05-04 | 1993-11-16 | Atlantic Richfield Company | Method and apparatus for gravel pack well completions |
| CN203008808U (en) * | 2013-01-16 | 2013-06-19 | 西南石油大学 | Casing centralizer with variable diameter and rotational flow function |
| CN203742480U (en) * | 2014-01-29 | 2014-07-30 | 中国石油集团西部钻探工程有限公司 | Clamping-preventing casing guide device |
| CN203742539U (en) * | 2014-01-29 | 2014-07-30 | 中国石油集团西部钻探工程有限公司 | Vibration well cementation short joint device |
| CN105064952A (en) * | 2015-09-09 | 2015-11-18 | 长江大学 | Well cementation fluid rotary flow generating device |
| CN205876239U (en) * | 2016-06-30 | 2017-01-11 | 中国石油集团西部钻探工程有限公司 | Whirl device for well cementation |
-
2016
- 2016-06-30 CN CN201610502242.XA patent/CN106014304A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5261486A (en) * | 1992-05-04 | 1993-11-16 | Atlantic Richfield Company | Method and apparatus for gravel pack well completions |
| CN203008808U (en) * | 2013-01-16 | 2013-06-19 | 西南石油大学 | Casing centralizer with variable diameter and rotational flow function |
| CN203742480U (en) * | 2014-01-29 | 2014-07-30 | 中国石油集团西部钻探工程有限公司 | Clamping-preventing casing guide device |
| CN203742539U (en) * | 2014-01-29 | 2014-07-30 | 中国石油集团西部钻探工程有限公司 | Vibration well cementation short joint device |
| CN105064952A (en) * | 2015-09-09 | 2015-11-18 | 长江大学 | Well cementation fluid rotary flow generating device |
| CN205876239U (en) * | 2016-06-30 | 2017-01-11 | 中国石油集团西部钻探工程有限公司 | Whirl device for well cementation |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100554A (en) * | 2017-05-31 | 2017-08-29 | 中国石油集团西部钻探工程有限公司 | Well cementation vibration pipe nipple |
| CN108756808A (en) * | 2018-05-14 | 2018-11-06 | 中国石油集团西部钻探工程有限公司 | Well cementation self-oscillation float collar |
| CN111734405A (en) * | 2020-06-29 | 2020-10-02 | 中国石油天然气集团有限公司 | Device for improving accuracy of flushing efficiency of pad by pad fluid in well cementation |
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Application publication date: 20161012 |