CN103104201B - Multidirectional adjustment rotary-type pipe sleeve centering device - Google Patents
Multidirectional adjustment rotary-type pipe sleeve centering device Download PDFInfo
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- CN103104201B CN103104201B CN201310034397.1A CN201310034397A CN103104201B CN 103104201 B CN103104201 B CN 103104201B CN 201310034397 A CN201310034397 A CN 201310034397A CN 103104201 B CN103104201 B CN 103104201B
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- well
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- moving runner
- centralizer body
- centering device
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Abstract
The invention discloses a multidirectional adjustment rotary-type pipe sleeve centering device. The multidirectional adjustment rotary-type pipe sleeve centering device comprises a cylindrical centering body, a plurality of adjusting ribs, and at least one multidirectional adjustment device, wherein the plurality of adjusting ribs are arranged on the outer side of centering body, and the multidirectional adjustment device which can rotate towards multiple directions is arranged at the positions of the adjusting ribs on a shell wall of the centering body. In the running casing process of well drilling construction, particularly when the centering device enter a horizontal or highly slope well section, a cylindrical rotating wheel can rotate inside a hole along a connecting shaft and can rotate along a center shaft so as to enable the friction between a casing wall and a well wall to be changed into the rotary friction, and therefore resistance when a casing pipe moves downward is largely reduced and the casing pipe can be placed in the middle of the well wall and smoothly trip in the well. Not only can the structure of spiral adjusting ribs can be used for scraping mud cakes which attach on the well wall and improve displacement efficiency of cement paste in well cementation, but also a spiral angle changes a vertical stress state in the process that the casing pipe trips in the well. When the centering device meets the resistance of the well wall, the centering device can rotate slightly, guarantee that the casing pipe trips in well smoothly, improve efficiency of casing pipe trip-in, and avoid that engineering accidents in the well from occur.
Description
Technical field
The present invention relates to oil development drilling well casing drilling field at present, be mainly used in High angle or horizontal well completion construction, realize entering sleeve pipe smoothly and the one multidirectional regulating rotary dynamic formula pipe box centralizer improving cementing quality.
Technical background
Current oilfield well completion is constructed the rigid sleeve tube centralizer generally adopted, it regulates muscle to be generally straightedge type or screw type, such centralizer regulates muscle to form primarily of centralizer body and the screw type of giving prominence on body, and this kind of centralizer exists obvious technological deficiency in the completion work progress of some special oil wells.As in directional well Completion Operations, casing string affects comparatively large by the lateral force of hole deviation, and spiral rigid sleeve tube centralizer can not play the effect reducing frictional resistance, increases Frictional Drag of Casing Running on the contrary; Also can increase the contact of sleeve pipe and the borehole wall in bore hole well, the frictional resistance of sleeve pipe and the borehole wall can not be reduced; Straightedge rigid sleeve tube centralizer and spiral rigid sleeve tube centralizer can't use in sleeve pipe, increase the frictional resistance of sleeve pipe and upper strata internal surface of sleeve pipe.
Summary of the invention
The technical problem to be solved in the present invention be for the deficiencies in the prior art provide a kind of can smoothly under enter sleeve pipe and improve the one multidirectional regulating rotary dynamic formula pipe box centralizer of cementing quality.
For solving the problems of the technologies described above the present invention by the following technical solutions:
A kind of multidirectional regulating rotary dynamic formula pipe box centralizer, comprises the centralizer body of tubular, and the outside of described centralizer body is provided with some and regulates muscle, and the position shell wall of described centralizer body being positioned at adjustment muscle is provided with at least one multi-directional regulation device that can rotate towards multiple directions.
Below further improvement of these options of the present invention:
Multi-directional regulation device comprises moving runner, and moving runner is flexibly connected with the shell wall of centralizer body by rotation support device.
Further improvement: position corresponding to moving runner on the shell wall of centralizer body is provided with the through hole that can hold moving runner and rotation support device.
Further improvement: described moving runner can not protrude from the inwall of centralizer body near the part of the inner wall of centralizer body;
Described moving runner protrudes from the outer wall of centralizer body near the part of the shell wall of centralizer body.
Further improvement: rotation support device comprises the support bar of T font, the lateral part of support bar is connected with the centralizer body outer wall in through hole, and vertical part is connected with the connecting axle of a transverse direction, and this connecting axle and moving runner are rotationally connected.
Further improvement: it is T-shaped chute that position corresponding with connecting axle on the excircle of moving runner is provided with cross section, and described connecting axle is positioned at chute and is rotationally connected with chute.
Further improvement: described chute is arranged ringwise on the excircle of moving runner.
Adopt technique scheme, in wellbore construction setting of casing process, particularly when the level of entering or the larger well section of gradient, cylindrical pivot wheel can rotate along connecting axle and also can rotate along jackshaft in hole, the friction of casing wall and the borehole wall is made to become rolling friction, greatly reduce resistance when sleeve pipe moves downward, enable the sleeve pipe borehole wall placed in the middle and unimpededly enter down; The structure of spiral adjustment muscle not only can strike off the mud cake being attached to the borehole wall, improve displacement efficiency of cement slurry when cementing the well, and spiral angle change sleeve pipe under enter vertical stress in process, can rotate a little when running into wall drag, ensure that and enter under sleeve pipe smoothly, enter efficiency under improve sleeve pipe, avoid the generation of down-hole engineering accident.
Below in conjunction with drawings and Examples, technique scheme is described further:
accompanying drawing illustrates:
Accompanying drawing 1 is the structural representation of rotary type pipe box centralizer in the embodiment of the present invention;
Accompanying drawing 2 is that the A of accompanying drawing 1 is to sectional view.
In figure: 1-centralizer body; 2-regulates muscle; 3-hole; 4-moving runner; The multidirectional regulating block of 5-; 6-draw-in groove; 7-connecting axle.
Detailed description of the invention
Embodiment, as schemed shown in l, 2, a kind of multidirectional regulating rotary dynamic formula pipe box centralizer, comprise the centralizer body 1 of tubular, the outside of described centralizer body 1 is provided with some and regulates muscle 2, and the position shell wall of described centralizer body 1 being positioned at adjustment muscle 2 is provided with at least one multi-directional regulation device that can rotate towards multiple directions.
Multi-directional regulation device comprises moving runner 4, and moving runner 4 is flexibly connected by the shell wall of rotation support device with centralizer body 1.
Position corresponding to moving runner 4 on the shell wall of centralizer body 1 is provided with the through hole 3 that can hold moving runner 4 and rotation support device.
Described moving runner 4 can not protrude from the inwall of centralizer body 1 near the part of the inner wall of centralizer body 1;
Described moving runner 4 protrudes from the outer wall of centralizer body 1 near the part of the shell wall of centralizer body 1.
Rotation support device comprises the support bar 5 of T font, and the lateral part of support bar 5 is connected with centralizer body 1 outer wall in through hole 3, and vertical part is connected with the connecting axle 7 of a transverse direction, and this connecting axle 7 is rotationally connected with moving runner 4.
It is T-shaped chute 6 that position corresponding with connecting axle 7 on the excircle of moving runner 4 is provided with cross section, and described connecting axle 7 is positioned at chute 6 and is rotationally connected with chute 6.
Described chute 6 is arranged ringwise on the excircle of moving runner 4.
Described centralizer body 1 is integrated casting with regulating muscle 2, decrease production technology, reduce cost of production, in wellbore construction setting of casing process, particularly when the level of entering or the larger well section of gradient, cylindrical pivot wheel 4 along multiple directions rotation hole 3 in, can become rolling friction to make the friction of casing wall and the borehole wall, greatly reduce resistance when sleeve pipe moves downward, enable the sleeve pipe borehole wall placed in the middle and unimpededly enter down; The structure of spiral adjustment muscle 2 not only can strike off the mud cake being attached to the borehole wall, improve displacement efficiency of cement slurry when cementing the well, and spiral angle change sleeve pipe under enter vertical stress in process, can rotate a little when running into wall drag, ensure that and enter under sleeve pipe smoothly, enter efficiency under improve sleeve pipe, avoid the generation of down-hole engineering accident.
Claims (1)
1. a multidirectional regulating rotary dynamic formula pipe box centralizer, comprise the centralizer body (1) of tubular, the outside of described centralizer body (1) is provided with some and regulates muscle (2), it is characterized in that: the position shell wall of described centralizer body (1) being positioned at adjustment muscle (2) is provided with at least one multi-directional regulation device that can rotate towards multiple directions;
Multi-directional regulation device comprises moving runner (4), and moving runner (4) is flexibly connected by the shell wall of rotation support device with centralizer body (1);
On the shell wall of centralizer body (1), corresponding position is provided with and can holds moving runner (4) and rotation support device with moving runner (4)
Through hole (3);
Described moving runner (4) can not protrude from the inwall of centralizer body (1) near the part of the inner wall of centralizer body (1);
Described moving runner (4) protrudes from the outer wall of centralizer body (1) near the part of the shell wall of centralizer body (1);
Rotation support device comprises the support bar (5) of T font, the lateral part of support bar (5) is connected with centralizer body (1) outer wall in through hole (3), vertical part is connected with the connecting axle (7) of a transverse direction, and this connecting axle (7) and moving runner (4) are rotationally connected;
Position corresponding with connecting axle (7) on the excircle of moving runner (4) is provided with the chute (6) that cross section is T type, and described connecting axle (7) is positioned at chute (6) and is rotationally connected with chute (6);
Described chute (6) is arranged ringwise on the excircle of moving runner (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310034397.1A CN103104201B (en) | 2013-01-30 | 2013-01-30 | Multidirectional adjustment rotary-type pipe sleeve centering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310034397.1A CN103104201B (en) | 2013-01-30 | 2013-01-30 | Multidirectional adjustment rotary-type pipe sleeve centering device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103104201A CN103104201A (en) | 2013-05-15 |
| CN103104201B true CN103104201B (en) | 2015-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310034397.1A Active CN103104201B (en) | 2013-01-30 | 2013-01-30 | Multidirectional adjustment rotary-type pipe sleeve centering device |
Country Status (1)
| Country | Link |
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| CN (1) | CN103104201B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533313A (en) * | 2014-12-30 | 2015-04-22 | 中国石油大学(华东) | Spiral multi-wing type universal wheel casing centralizer and application thereof |
| CN111691832B (en) * | 2020-07-14 | 2022-05-24 | 中国石油集团渤海钻探工程有限公司 | Rotatable intelligent centralizer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29615594U1 (en) * | 1996-09-02 | 1997-01-02 | Scherf, Bernhard, Dipl.-Ing., 03229 Altdöbern | Spacers for pipe strings of earth probes |
| RU2176717C1 (en) * | 2000-06-13 | 2001-12-10 | Пчелинцев Юрий Владимирович | Sucker-rod centralizer |
| CN201351463Y (en) * | 2009-02-11 | 2009-11-25 | 成都恩承油气有限公司 | Integral drag-reduction casing centralizer |
| CN201908588U (en) * | 2011-02-10 | 2011-07-27 | 中国石油天然气股份有限公司 | Self-positioning roller type sucker rod centralizer |
| CN202090857U (en) * | 2011-06-15 | 2011-12-28 | 李熙 | Novel sucker rod centering device |
| CN202380989U (en) * | 2011-12-28 | 2012-08-15 | 中国石油天然气股份有限公司 | Tubular column centralizing drag reducer |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0410953D0 (en) * | 2004-05-15 | 2004-06-16 | Cromar Ltd | Improvements in or relating to roller subs |
| GB0712629D0 (en) * | 2007-06-29 | 2007-08-08 | Mcnay Graeme | Transport assembly |
| GB0904574D0 (en) * | 2009-03-18 | 2009-04-29 | Wireline Engineering Ltd | Improved downhole device |
-
2013
- 2013-01-30 CN CN201310034397.1A patent/CN103104201B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29615594U1 (en) * | 1996-09-02 | 1997-01-02 | Scherf, Bernhard, Dipl.-Ing., 03229 Altdöbern | Spacers for pipe strings of earth probes |
| RU2176717C1 (en) * | 2000-06-13 | 2001-12-10 | Пчелинцев Юрий Владимирович | Sucker-rod centralizer |
| CN201351463Y (en) * | 2009-02-11 | 2009-11-25 | 成都恩承油气有限公司 | Integral drag-reduction casing centralizer |
| CN201908588U (en) * | 2011-02-10 | 2011-07-27 | 中国石油天然气股份有限公司 | Self-positioning roller type sucker rod centralizer |
| CN202090857U (en) * | 2011-06-15 | 2011-12-28 | 李熙 | Novel sucker rod centering device |
| CN202380989U (en) * | 2011-12-28 | 2012-08-15 | 中国石油天然气股份有限公司 | Tubular column centralizing drag reducer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103104201A (en) | 2013-05-15 |
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