CN205714021U - A kind of horizontal well idler wheel centralizing resistance absorber - Google Patents
A kind of horizontal well idler wheel centralizing resistance absorber Download PDFInfo
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- CN205714021U CN205714021U CN201620421865.XU CN201620421865U CN205714021U CN 205714021 U CN205714021 U CN 205714021U CN 201620421865 U CN201620421865 U CN 201620421865U CN 205714021 U CN205714021 U CN 205714021U
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- resistance
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Abstract
This utility model relates to oilfield horizontal well completion technique field, particularly to a kind of horizontal well idler wheel centralizing resistance absorber.The body shaft of this device is the most equidistant is designed with a plurality of oblique rigidity centering edge, equidistant on rigidity centering edge have multiple mounting groove, roller is installed in mounting groove, the height that stretches out of roller maintains an equal level mutually with rigidity centering edge outer surface, rigidity centering edge upper end is inlaid with orthogonal cutting tooth, rigidity centering edge lower end is inlaid with the traditional method of indicating the pronunciation of a Chinese character and cuts tooth, cuts in the traditional method of indicating the pronunciation of a Chinese character and is inlaid with resistance to roll flute on the rigidity centering edge of tooth upper end.This utility model achieves has stronger rigidity, the strength of safeguard level well High angle section bunch tube is placed in the middle, sliding friction during setting of casing can be become rolling friction, reduce cased resistance, there is the function of the cutting borehole wall, it is possible to striking off the mud cake being attached on the borehole wall, the borehole wall can rotate a little being hampered, cement mortar can be made when cementing to produce eddy flow, improve displacement efficiency.
Description
Technical field:
This utility model relates to oilfield horizontal well completion technique field, particularly to a kind of horizontal well idler wheel centralizing drag reduction
Device.
Background technology:
At present, the casing stabbing board of use is all rigidity or spring is main, and they are along with pre-under sleeve pipe together lower going-into-well
Location is put, and promotes sleeve pipe to be positioned at well center as far as possible, does not offsets, it is possible to be effectively improved cementing quality, especially lower curved section
Cementing quality, the application of centralizer simultaneously can also reduce occur sleeve pipe pressure reduction meet card risk.But the most either rigidity
The centralizer of material or the equal Shortcomings of the centralizer of spring materials.The righting effect of spring centralizer does not has rigid centralizer
Righting effective, due to horizontal well lower curved section and the impact of horizontal segment pipe string gravity, general spring centralizer can lose efficacy, rise not
Effect to righting sleeve pipe placed in the middle.Although rigid centralizer has preferable intensity, it is possible to overcome the basis weight of pipe string, because of
During entering under for, moment of torsion is excessive, and the risk of bit freezing often occurs.
Utility model content:
The technical problems to be solved in the utility model is to provide a kind of horizontal well idler wheel centralizing resistance absorber, and this device realizes
Having a stronger rigidity, the strength of safeguard level well High angle section bunch tube is placed in the middle, it is possible to by sliding friction during setting of casing
Become rolling friction, reduce cased resistance, there is the function of the cutting borehole wall, it is possible to strike off the mud cake being attached on the borehole wall,
Being hampered, the borehole wall can rotate a little, cement mortar can be made when cementing to produce eddy flow, improve displacement efficiency.Overcome existing set
Pipe rigid centralizer easily occurs setting of casing to be hampered card situation, the deficiency that sleeve pipe spring centralizer easily lost efficacy.
Technical solution adopted in the utility model is: a kind of horizontal well idler wheel centralizing resistance absorber, including body；This
Body is axially gone up and equidistant is designed with a plurality of oblique rigidity centering edge, equidistant on rigidity centering edge has multiple mounting groove, installs
Being provided with roller in groove, the height that stretches out of roller maintains an equal level mutually with rigidity centering edge outer surface, and rigidity centering edge upper end is just inlaid with
Cutting tooth, rigidity centering edge lower end is inlaid with the traditional method of indicating the pronunciation of a Chinese character and cuts tooth, cuts in the traditional method of indicating the pronunciation of a Chinese character and is inlaid with resistance to roll flute on the rigidity centering edge of tooth upper end.
The beneficial effects of the utility model are: this utility model has stronger rigidity, safeguard level well High angle section set
The strength of pipe string is placed in the middle, it is possible to sliding friction during setting of casing is become rolling friction, reduces cased resistance, has cutting
The function of the borehole wall, it is possible to strike off the mud cake being attached on the borehole wall, being hampered, the borehole wall can rotate a little, can make water when cementing
Mud produces eddy flow, improves displacement efficiency.
Accompanying drawing illustrates:
The utility model is described in more detail with detailed description of the invention below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention:
As it is shown in figure 1, a kind of horizontal well idler wheel centralizing resistance absorber, including body 1；Body 1 axially goes up equidistant design
There is an a plurality of oblique rigidity centering edge 2, equidistant on rigidity centering edge 2 have multiple mounting groove, roller 3 is installed in mounting groove,
The height that stretches out of roller 3 maintains an equal level mutually with rigidity centering edge 2 outer surface, and rigidity centering edge 2 upper end is inlaid with orthogonal cutting tooth 4, rigidity
Centering edge 2 lower end is inlaid with the traditional method of indicating the pronunciation of a Chinese character and cuts tooth 5, is inlaid with resistance to roll flute 6 on the rigidity centering edge 2 that the traditional method of indicating the pronunciation of a Chinese character cuts tooth 5 upper end.
During use, this utility model can be freely rotatable and slide up and down on sleeve pipe, it is also possible to fixing screw by it
It is fixed on certain position of sleeve pipe.When sleeve pipe enters lower curved section, on the one hand this utility model makes big section sleeve body not be close to
The low limit of well, friction area reduces；On the other hand, due to the rolling of roller 3, make sliding friction during conventional setting of casing become
Rolling friction, thus the frictional force being greatly reduced between sleeve pipe and the borehole wall, make sleeve pipe enter well smoothly.The cutting of positive and negative both direction
Tooth ensures that centralizer has the function of certain cutting borehole wall.Aerial at pipe outer shroud, cement mortar passes adjacent two rigidity rightings
Produce eddy flow during runner between rib 2, wash away the mud cake on the borehole wall.Internal diameter of the present utility model is bigger than sleeve outer, it is simple to dress
On sleeve pipe, and body 1 external diameter is identical with the external diameter of casing coupling, in order to have enough circulation areas.
It is understood that above with respect to specific descriptions of the present utility model, be merely to illustrate this utility model and not
It is limited to the technical scheme described by this utility model embodiment, it will be understood by those within the art that, the most permissible
This utility model is modified or equivalent, to reach identical technique effect；Needs are used, all in this reality as long as meeting
Within novel protection domain.
Claims (1)
1. a horizontal well idler wheel centralizing resistance absorber, including body (1)；It is characterized in that: body (1) is the most equidistant to be set
In respect of a plurality of oblique rigidity centering edge (2), rigidity centering edge (2) is the most equidistant has multiple mounting groove, is provided with in mounting groove
Roller (3), the height that stretches out of roller (3) maintains an equal level mutually with rigidity centering edge (2) outer surface, and rigidity centering edge (2) upper end is inlaid with
Orthogonal cutting tooth (4), rigidity centering edge (2) lower end is inlaid with the traditional method of indicating the pronunciation of a Chinese character and cuts tooth (5), cuts the rigidity centering edge of tooth (5) upper end in the traditional method of indicating the pronunciation of a Chinese character
(2) resistance to roll flute (6) it is inlaid with on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620421865.XU CN205714021U (en) | 2016-05-10 | 2016-05-10 | A kind of horizontal well idler wheel centralizing resistance absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620421865.XU CN205714021U (en) | 2016-05-10 | 2016-05-10 | A kind of horizontal well idler wheel centralizing resistance absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205714021U true CN205714021U (en) | 2016-11-23 |
Family
ID=57304886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620421865.XU Active CN205714021U (en) | 2016-05-10 | 2016-05-10 | A kind of horizontal well idler wheel centralizing resistance absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205714021U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356529A (en) * | 2018-12-12 | 2019-02-19 | 林林 | It is a kind of to cross size mud cake removal device and its production technology |
-
2016
- 2016-05-10 CN CN201620421865.XU patent/CN205714021U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356529A (en) * | 2018-12-12 | 2019-02-19 | 林林 | It is a kind of to cross size mud cake removal device and its production technology |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |