CN103032032A - Helical rigid roller resin centralizer for casings - Google Patents
Helical rigid roller resin centralizer for casings Download PDFInfo
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- CN103032032A CN103032032A CN2012105906348A CN201210590634A CN103032032A CN 103032032 A CN103032032 A CN 103032032A CN 2012105906348 A CN2012105906348 A CN 2012105906348A CN 201210590634 A CN201210590634 A CN 201210590634A CN 103032032 A CN103032032 A CN 103032032A
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- centralizer
- helical
- roller resin
- rigid roller
- roller
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Abstract
The invention relates to a helical rigid roller resin centralizer for casings, which comprises a centralizer shell (1) and positioning screws (2). The helical rigid roller resin centralizer is characterized in that: the outer wall of the centralizer shell (1) is composed of helical convex and concave surfaces, two rollers (5) are arranged at an upper position and a lower position on each concave surface, and the rollers (5) are at upper and lower positions on the central axes (4) of the concave surfaces, and are distributed along helical groove pitches. The helical rigid roller resin centralizer has the advantages that: the rigid centralizer is mounted on a casing to centralize the casing; since the centralizing strips of the helical rigid roller resin centralizer are designed to be helical, fluid can produce a vortex, which is favorable for the displacement of slurry, the enlargement of circulation area and the sufficient contact between the slurry and the well wall, and thereby the casing can be centralized and prevented from being stuck.
Description
Technical field
The present invention relates to the effective spiral rigidity of the cover roller resin centralizer of righting sleeve pipe.
Background technology
Rigid centralizer is contained on the sleeve pipe, is used for the righting sleeve pipe.In inclined shaft and horizontal well, can hold sleeve pipe, make casing centralization, reduce frictional resistance, increase horizontal segment sleeve pipe translational speed, improve cementing quality.Existing righting sleeve pipe mostly is tubular structure, and this structure can not make fluid produce eddy current, is unfavorable for the replacement of mud, reduces the area that circulates, and can not make mud contact fully the borehole wall, can not make casing centralization, the sticking card of sleeve pipe occurs.
Summary of the invention
The purpose of this invention is to provide a kind of replacement that is conducive to mud, increase the circulation area, mud contacts the borehole wall fully, thereby makes casing centralization, prevents the effective spiral rigidity of the cover roller resin centralizer of the sticking card of sleeve pipe.
The object of the present invention is achieved like this, overlap effective spiral rigidity roller resin centralizer, comprise: by centralizer housing and dog screw, it is characterized in that: centralizer housing outer arm is to be made of spiral male and female face, two rollers have been located one on the other at concave surface, roller is at the upper-lower position of concave surface central axis, along distributing in the helicla flute distance.
Described centralizer case material is resin.
Between described two rollers dog screw is arranged.
The internal diameter of described centralizer housing 142 and 182mm between, external diameter is at 210mm, length is at 150 ± 1mm.
Advantage of the present invention is: rigid centralizer is contained on the sleeve pipe, is used for the righting sleeve pipe.Its righting strip is designed to helical form, can make fluid produce eddy current, is conducive to the replacement of mud, increases the circulation area, and mud contacts the borehole wall fully, thereby makes casing centralization, prevents the sticking card of sleeve pipe.
Description of drawings
The invention will be further described below in conjunction with the embodiment accompanying drawing:
Fig. 1 is embodiment of the invention structural representation;
Among the figure, 1, the centralizer housing; 2, dog screw; 3, convex-concave helical form; 4, central axis; 5, roller.
The specific embodiment
Embodiment 1
As shown in Figure 1, overlap effective spiral rigidity roller resin centralizer, comprise: by centralizer housing 1 and dog screw 2, it is characterized in that: centralizer housing 1 outer arm is to be made of spiral male and female face, two rollers 5 have been located one on the other at concave surface, roller 5 is at the upper-lower position of concave surface central axis 4, along distributing in the helicla flute distance.Centralizer housing 1 material is resin.Between two rollers 5 dog screw 2 is arranged.The internal diameter of centralizer housing 1 142 and 182mm between, external diameter is at 210mm, length is at 150 ± 1mm.
The internal diameter of the centralizer housing 1 of present embodiment is at 142 mm ± 0.2 mm, and external diameter is at 210mm, and length is at 150 ± 1mm.
As shown in Figure 1, overlap effective spiral rigidity roller resin centralizer, comprise: by centralizer housing 1 and dog screw 2, it is characterized in that: centralizer housing 1 outer arm is to be made of spiral male and female face, two rollers 5 have been located one on the other at concave surface, roller 5 is at the upper-lower position of concave surface central axis 4, along distributing in the helicla flute distance.Centralizer housing 1 material is resin.Between two rollers 5 dog screw 2 is arranged.The internal diameter of centralizer housing 1 is in 182 mm ± 0.2, and external diameter is at 210mm, and length is at 150 ± 1mm.
The effective spiral rigidity of the cover roller resin centralizer that what embodiment 1 provided among the present invention is 5 1/2 " the effective spiral rigidity of cover roller resin centralizer, what embodiment 2 provided is 7 ".Mounting method of the present invention is: unclamp jackscrew and will overlap effective spiral rigidity roller resin centralizer and be enclosed within sleeve shell, select correct position and tighten jackscrew to get final product, with sleeve pipe access tube string.
The present invention can be widely used in laterally being equipped with on the setting of casing construction operation rolling wheel centralizer centering edge of horizontal well or high angle hole two row's rollers, and this centralizer roller axis is vertical with borehole axis.When sleeve pipe enters lower curved section, make large section sleeve body not be close to the low limit of well on the one hand, friction area reduces; On the other hand, because the rolling of roller, the sliding friction when making conventional setting of casing becomes rolling friction, thereby greatly reduces the coefficient of friction resistance between sleeve pipe and the borehole wall, makes sleeve pipe enter smoothly well.
Claims (4)
1. overlap effective spiral rigidity roller resin centralizer, comprise: by centralizer housing (1) and dog screw (2), it is characterized in that: centralizer housing (1) outer arm is to be made of spiral male and female face, two rollers (5) have been located one on the other at concave surface, roller (5) is at the upper-lower position of concave surface central axis (4), along distributing in the helicla flute distance.
2. the effective spiral rigidity of cover according to claim 1 roller resin centralizer, it is characterized in that: described centralizer housing (1) material is resin.
3. the effective spiral rigidity of cover according to claim 1 roller resin centralizer is characterized in that: dog screw (2) is arranged between described two rollers (5).
4. the effective spiral rigidity of cover according to claim 1 roller resin centralizer is characterized in that: the internal diameter of described centralizer housing (1) 142 and 182mm between, external diameter is at 210mm, length is at 150 ± 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105906348A CN103032032A (en) | 2012-12-31 | 2012-12-31 | Helical rigid roller resin centralizer for casings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105906348A CN103032032A (en) | 2012-12-31 | 2012-12-31 | Helical rigid roller resin centralizer for casings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103032032A true CN103032032A (en) | 2013-04-10 |
Family
ID=48019379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105906348A Pending CN103032032A (en) | 2012-12-31 | 2012-12-31 | Helical rigid roller resin centralizer for casings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103032032A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628829A (en) * | 2013-12-03 | 2014-03-12 | 林林 | Resin cyclone centralizer |
| CN113216870A (en) * | 2021-05-24 | 2021-08-06 | 中石化石油工程技术服务有限公司 | Straight wing type resin casing centralizer and installation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2039199C1 (en) * | 1993-02-11 | 1995-07-09 | Научно-производственная фирма "Эридан-Экспо" | Hydraulic centralizer |
| CN2693935Y (en) * | 2003-03-26 | 2005-04-20 | 大港油田集团有限责任公司 | Roller type centralizer |
| CN201024926Y (en) * | 2007-04-28 | 2008-02-20 | 北京奥格特技术有限公司 | Trolley spiral bushing centralizer |
| CN201196035Y (en) * | 2008-01-16 | 2009-02-18 | 刘白杨 | Casing tube roller centralizer |
| CN201351463Y (en) * | 2009-02-11 | 2009-11-25 | 成都恩承油气有限公司 | Integral drag-reduction casing centralizer |
| CN102635316A (en) * | 2012-05-09 | 2012-08-15 | 常熟市石油固井工具有限公司 | Rigid spiral idler centralizer |
| CN202431223U (en) * | 2011-12-30 | 2012-09-12 | 中国石油集团川庆钻探工程有限公司 | Centralizer of resin screw shell |
| CN203188932U (en) * | 2012-12-31 | 2013-09-11 | 中国石油集团川庆钻探工程有限公司长庆固井公司 | Spiral rigid idler wheel resin centering device for sleeve |
-
2012
- 2012-12-31 CN CN2012105906348A patent/CN103032032A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2039199C1 (en) * | 1993-02-11 | 1995-07-09 | Научно-производственная фирма "Эридан-Экспо" | Hydraulic centralizer |
| CN2693935Y (en) * | 2003-03-26 | 2005-04-20 | 大港油田集团有限责任公司 | Roller type centralizer |
| CN201024926Y (en) * | 2007-04-28 | 2008-02-20 | 北京奥格特技术有限公司 | Trolley spiral bushing centralizer |
| CN201196035Y (en) * | 2008-01-16 | 2009-02-18 | 刘白杨 | Casing tube roller centralizer |
| CN201351463Y (en) * | 2009-02-11 | 2009-11-25 | 成都恩承油气有限公司 | Integral drag-reduction casing centralizer |
| CN202431223U (en) * | 2011-12-30 | 2012-09-12 | 中国石油集团川庆钻探工程有限公司 | Centralizer of resin screw shell |
| CN102635316A (en) * | 2012-05-09 | 2012-08-15 | 常熟市石油固井工具有限公司 | Rigid spiral idler centralizer |
| CN203188932U (en) * | 2012-12-31 | 2013-09-11 | 中国石油集团川庆钻探工程有限公司长庆固井公司 | Spiral rigid idler wheel resin centering device for sleeve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628829A (en) * | 2013-12-03 | 2014-03-12 | 林林 | Resin cyclone centralizer |
| CN103628829B (en) * | 2013-12-03 | 2016-01-13 | 林林 | A kind of resin cyclone centralizer |
| CN113216870A (en) * | 2021-05-24 | 2021-08-06 | 中石化石油工程技术服务有限公司 | Straight wing type resin casing centralizer and installation method thereof |
| CN113216870B (en) * | 2021-05-24 | 2022-05-20 | 中石化石油工程技术服务有限公司 | Straight wing type resin casing centralizer and installation method thereof |
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Application publication date: 20130410 |