CN207813517U - Anti- mud drum reducing centralizer - Google Patents
Anti- mud drum reducing centralizer Download PDFInfo
- Publication number
- CN207813517U CN207813517U CN201720829104.2U CN201720829104U CN207813517U CN 207813517 U CN207813517 U CN 207813517U CN 201720829104 U CN201720829104 U CN 201720829104U CN 207813517 U CN207813517 U CN 207813517U
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- centralizer
- wiper block
- cylinder
- spring
- mud drum
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Abstract
The utility model is related to the technical fields of drilling tool attachment, it is a kind of anti-mud drum reducing centralizer, it includes centralizer cylinder, wiper block, it the quantity at least two of wiper block and is distributed on the outer wall of centralizer cylinder, it is provided with spring groove and mounting groove on the outer wall of centralizer cylinder, spring is installed in spring groove, one end inlay card of wiper block is in spring groove and the upper end of spring acts against on wiper block, the other end of wiper block is screwed in the mounting groove on centralizer cylinder, setting is fluted in the middle part of wiper block, the outer wall of groove and centralizer cylinder surrounds flow channels.Spring groove and spring is arranged in the utility model on centralizer cylinder, and flow channels are set on wiper block, wiper block can be retracted in spring groove after being under pressure, the outer diameter of itself can be changed, the resistance point that can be smoothly through in well, flow channels can reduce the mud drum at centralizer, to reduce the Radial resistant force that drilling tool generates at centralizer when rotated.
Description
Technical field
The utility model is related to the technical fields of drilling tool attachment, are a kind of anti-mud drum reducing centralizers.
Background technology
During oil exploration, drilling well be recover the oil the first procedure, and centralizer be in drilling tool attachment most
Common one kind because centralizer during drilling well as drill string rotates together, once encounter the borehole wall of out-of-flatness
Or centralizer mud drum, it is easy to cause bit freezing, huge insecurity is brought to drilling platforms.
Invention content
The utility model provides a kind of anti-mud drum reducing centralizer, overcomes the deficiency of the above-mentioned prior art, energy
Effectively solve the problems, such as the bit freezing that drill string encounters the borehole wall of out-of-flatness in drilling process or centralizer mud drum generates.
The technical solution of the utility model is realized by following measures：A kind of anti-mud drum reducing centralizer includes
Centralizer cylinder, wiper block, the quantity at least two of wiper block and are distributed on the outer wall of centralizer cylinder, centralizer cylinder
Outer wall on be provided with spring groove and mounting groove, spring is installed in spring groove, one end inlay card of wiper block is in spring groove
Interior and spring upper end acts against on wiper block, and the other end of wiper block is screwed the installation on centralizer cylinder
In slot, setting is fluted in the middle part of wiper block, and the outer wall of groove and centralizer cylinder surrounds flow channels.
Here is the further optimization and/or improvements to above-mentioned utility model technical solution：
It is provided with internal thread segment on the left end inner wall of above-mentioned centralizer cylinder, is provided on the right end outer wall of centralizer cylinder
External thread section.
The exterior contour of above-mentioned wiper block is the streamlined of bending, and the outer wall of wiper block and centralizer cylinder fits closely.
Spring groove between above-mentioned adjacent wiper block is arranged at the different ends of centralizer cylinder.
Above-mentioned centralizer cylinder, wiper block outer surface on be both provided with corrosion-inhibiting coating.
The utility model reasonable and compact in structure, by the way that wiper block is arranged on centralizer cylinder, when drilling rod is on the borehole wall
When encountering barrier, wiper block can be retracted in spring groove after being under pressure, and in this way, centralizer can change
The outer diameter for becoming itself so as to the resistance point being smoothly through very much in well, while can also carry out effectively the irregular borehole wall
It repairs and reaming hole, flow channels can reduce the Radial resistant force that drilling tool generates at centralizer when rotated, be produced in drilling process
Raw small mud drum can also be thrown away by flow channels, reduce the mud drum at centralizer.
Description of the drawings
Attached drawing 1 is the structural schematic diagram of the best embodiment of the utility model.
Attached drawing 2 is the half section schematic of the best embodiment of the utility model.
Coding in attached drawing is respectively：1 is centralizer cylinder, and 2 be wiper block, and 3 be spring groove, and 4 be spring, and 5 be overcurrent
Channel, 6 be mounting groove, and 7 be screw.
Specific implementation mode
The utility model is not limited by following embodiments, can technical solution according to the present utility model and actual conditions
Determine specific embodiment.
In the present invention, for ease of description, the description of the relative position relation of each component is according to specification
The Butut mode of attached drawing 2 is described, such as：The position relationship of upper and lower, left and right etc. is the Butut according to Figure of description 2
Direction determines.
The utility model is further described with reference to embodiment and attached drawing：
As shown in attached drawing 1-2, the centralizer of the anti-mud drum reducing includes centralizer cylinder 1, wiper block 2, wiper block 2
It quantity at least two and is distributed on the outer wall of centralizer cylinder 1,3 He of spring groove is provided on the outer wall of centralizer cylinder 1
Mounting groove 6, is installed with spring 4 in spring groove 3, wiper block 2 one end inlay card is in spring groove 3 and the upper end of spring 4 is pushed up
It leans against on wiper block 2, the other end of wiper block 2 is fixedly mounted on by screw 7 in the mounting groove 6 on centralizer cylinder 1, wiper block
2 middle part settings are fluted, and the outer wall of groove and centralizer cylinder 1 surrounds flow channels 5.When wiper block 2 is by obstacle on the borehole wall
After the extruding of object, one end of wiper block 2 can be compressed in spring groove 3, to reduce the centralizer of the anti-mud drum reducing
Outer diameter, so as to be smoothly through resistance point, at the same time, wiper block 2 that is constantly flexible and squeezing the borehole wall also has the borehole wall
Certain repair, flow channels 5 can not only effectively reduce the resistance generated when rotated in centralizer cylinder 1, carry
High drilling speed, and when centralizer cylinder 1 generates mud drum, using the rotation of flow channels 5 and centralizer cylinder 1, block can be made
The mud drum of shape is quickly smashed and is thrown away, and then reduces the bit freezing phenomenon caused by mud drum.
The centralizer of above-mentioned anti-mud drum reducing can be made further optimization and/or improvements according to actual needs：
As shown in attached drawing 1-2, internal thread segment, the right end of centralizer cylinder 1 are provided on the left end inner wall of centralizer cylinder 1
External thread section is provided on outer wall.Greatly facilitate disassembly process when in use in this way.
As shown in attached drawing 1-2, the exterior contour of wiper block 2 is the streamlined of bending, wiper block 2 and centralizer cylinder 1
Outer wall fits closely.Fusiform wiper block 2 is conducive to the borehole wall of the centralizer cylinder 1 by out-of-flatness, wiper block 2 and centralizer
Cylinder 1 plays the role of stable drilling direction, anti-drilling deflection during drilling.
As shown in attached drawing 1-2, the spring groove 3 between adjacent wiper block 2 is arranged at the different ends of centralizer cylinder 1.In this way
The effect that wiper block 2 can be played simultaneously in the left and right ends of centralizer cylinder 1, makes capable of more stablizing for the utility model
Ground plays its effect.
As shown in attached drawing 1-2, centralizer cylinder 1, wiper block 2 outer surface on be both provided with corrosion-inhibiting coating.Corrosion-inhibiting coating
The utility model can be protected from the erosion of well oil dirt, extend service life.
The above technical characteristic constitutes the most preferred embodiment of the utility model, with stronger adaptability and best implementation
Effect can increase and decrease non-essential technical characteristic, to meet the needs of different situations according to actual needs.
Claims (8)
1. a kind of anti-mud drum reducing centralizer, it is characterised in that including centralizer cylinder, wiper block, the quantity of wiper block is at least
It for two and is distributed on the outer wall of centralizer cylinder, spring groove and mounting groove, spring is provided on the outer wall of centralizer cylinder
Be installed with spring in slot, wiper block one end inlay card is in spring groove and the upper end of spring acts against on wiper block, righting
The other end of block is screwed in the mounting groove on centralizer cylinder, and setting is fluted in the middle part of wiper block, groove with
The outer wall of centralizer cylinder surrounds flow channels.
2. anti-mud drum reducing centralizer according to claim 1, it is characterised in that on the left end inner wall of centralizer cylinder
It is provided with internal thread segment, external thread section is provided on the right end outer wall of centralizer cylinder.
3. anti-mud drum reducing centralizer according to claim 1 or 2, it is characterised in that the exterior contour of wiper block is curved
Bent streamlined, the outer wall of wiper block and centralizer cylinder fit closely.
4. anti-mud drum reducing centralizer according to claim 1 or 2, it is characterised in that the spring between adjacent wiper block
Slot is arranged at the different ends of centralizer cylinder.
5. anti-mud drum reducing centralizer according to claim 3, it is characterised in that the spring groove between adjacent wiper block
It is arranged at the different ends of centralizer cylinder.
6. anti-mud drum reducing centralizer according to claim 3, it is characterised in that centralizer cylinder, wiper block appearance
Corrosion-inhibiting coating is both provided on face.
7. anti-mud drum reducing centralizer according to claim 4, it is characterised in that centralizer cylinder, wiper block appearance
Corrosion-inhibiting coating is both provided on face.
8. the anti-mud drum reducing centralizer according to claims 1 or 2 or 5, it is characterised in that centralizer cylinder, wiper block
Outer surface on be both provided with corrosion-inhibiting coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720829104.2U CN207813517U (en) | 2017-07-10 | 2017-07-10 | Anti- mud drum reducing centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720829104.2U CN207813517U (en) | 2017-07-10 | 2017-07-10 | Anti- mud drum reducing centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207813517U true CN207813517U (en) | 2018-09-04 |
Family
ID=63335940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720829104.2U Active CN207813517U (en) | 2017-07-10 | 2017-07-10 | Anti- mud drum reducing centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207813517U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112502648A (en) * | 2020-12-06 | 2021-03-16 | 北京鼎点石油科技有限公司 | Blade mud-pack-preventing design method for blade-like well cleaning tool |
-
2017
- 2017-07-10 CN CN201720829104.2U patent/CN207813517U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112502648A (en) * | 2020-12-06 | 2021-03-16 | 北京鼎点石油科技有限公司 | Blade mud-pack-preventing design method for blade-like well cleaning tool |
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