CN203584351U - Efficient and wear-resistant mill shoe with flow guide rib plates - Google Patents
Efficient and wear-resistant mill shoe with flow guide rib plates Download PDFInfo
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- CN203584351U CN203584351U CN201320805521.5U CN201320805521U CN203584351U CN 203584351 U CN203584351 U CN 203584351U CN 201320805521 U CN201320805521 U CN 201320805521U CN 203584351 U CN203584351 U CN 203584351U
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- tooth
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- milling shoe
- rib plate
- ballas
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Abstract
The utility model relates to an efficient and wear-resistant mill shoe with flow guide rib plates. The mill shoe comprises a mill shoe body, a casing and a threaded head, wherein the bottom face of the casing is provided with discharging grooves, teeth are arranged between the adjacent discharging grooves, and the teeth include black diamond teeth and ballas teeth. The mill shoe is characterized in that flow guide grooves are additionally formed in the mill shoe body, the flow guide rib plates distributed at intervals are machined on the outside of the mill shoe body, nickel base alloy is welded to the outer surfaces of the flow guide rib plates, the teeth are divided into three types, namely the a type, the b type and the c type, the a type of the teeth and the c type of the teeth are asymmetric in arrangement, the flow guide grooves are matched with the flow guide rib plates, the black diamond teeth are distributed in a ridge embedment mode and are flush with the lower plane of the casing, the ballas teeth are arranged on the position 1/3 distance away from the bottom of the casing, and the number of the discharging grooves is seven. Compared with the prior art, the strength of the mill shoe body is improved, the bending probability of the mill shoe body is reduced, stress concentrated on the discharging grooves is reduced, and cracks on the connection portions of the discharging grooves are reduced.
Description
Technical field
The utility model relates to petroleum industry drilling and repairing well accident treatment technical field of tools, particularly a kind of high-efficiency abrasion-proof milling shoe with diversion rib plate.
Background technology
If cement paste shifts to an earlier date multiviscosisty and will cause well cementation accident in the process of cementing, drilling tool will be stuck in sleeve pipe by envelope.Adopt milling shoe that Behavior of Hardened Cement Paste and tool joint part top layer between envelope card section drilling rod and sleeve pipe are ground off, drilling rod and sleeve pipe are departed from, drilling rod being tripped out is afterwards a kind of measure of economical and efficient again.
Existing milling shoe body intensity is limited, in drilling and repairing well process, during due to bit freezing, drilling tool is up and down, the top rod being solidified by cement paste bends and is serpentine, and drilling rod is not placed in the middle in sleeve pipe, and milling shoe is subject to the closely spaced extruding in narrow limit, in addition tank place easily produces stress, even strict control electric TORQ and the pressure of the drill in the situation that, milling shoe tank position or easily occur breaking in various degree, even causes the integral body of milling shoe bottom to come off.
The technical disadvantages flexible for milling shoe body, discharge groove place easily cracks, has enterprise to milling shoe body Integral upset, promotes milling shoe intensity.This kind of mode contributes to improve milling shoe bizet intensity, but simultaneously also increased considerably milling area, causes overlapping milling speed slack-off.Meanwhile, this milling shoe internal diameter reduces, and interior rule footpath diamond increases tool joint grinding depth, causes interior rule footpath odontotripsis serious.
However, but the milling shoe emissions groove place concentrated problem of stress still cannot solve.In addition, because milling shoe body is crooked, also easily there is blocking-up in internal fluid channels, and causing overlapping milling foreign material cannot discharge smoothly.
Summary of the invention
The purpose of this utility model is, flexible for existing milling shoe body, internal fluid channels easily blocks, tank place stress is concentrated the technical disadvantages easily cracking, and a kind of high-efficiency abrasion-proof milling shoe with diversion rib plate is provided.
The utility model is achieved through the following technical solutions:
A kind of high-efficiency abrasion-proof milling shoe with diversion rib plate, structure comprises milling shoe body (1), machining is in the carcass (2) of milling shoe body (1) bottom and machining in the thread head (3) on milling shoe body (1) top, carcass bottom surface is provided with discharge groove (5), between adjacent discharge groove (5), be provided with tooth (4), tooth (4) consists of black diamond tooth (6) and ballas tooth (7), it is characterized in that, inner the increasing of described milling shoe body (1) has guiding gutter (11), milling shoe body (1) exterior mechanical is processed with the diversion rib plate (12) being spacedly distributed, diversion rib plate (12) external surface surfacing nickel-base alloy (13),
Described tooth (4) is set to a, b and c three types, in a type, the quantity of ballas tooth (7) is 8, in b type, the quantity of ballas tooth (7) is that the quantity of ballas tooth (7) in 9, c type is that the quantity of black diamond tooth (6) on 7, a, b and c three types is 7;
The arrangement mode of described tooth (4) is a type tooth, b type tooth, c type tooth, a type tooth, b type tooth, c type tooth and b type tooth, and a type tooth and c type tooth adopt asymmetric arrangement.
Further, described guiding gutter (11) matches with diversion rib plate (12).
Further, described black diamond tooth (6) adopts ridge edge formula mode cloth tooth.
Further, described ballas tooth (7) is positioned at black diamond tooth (6) outside.
Further, described black diamond tooth (6) is mutually concordant with carcass (2) lower plane.
Further, described ballas tooth (7) is arranged at apart from 1/3 place, carcass (2) bottom surface.
Further, the quantity of described discharge groove (5) is 7.
The utility model relates to a kind of high-efficiency abrasion-proof milling shoe with diversion rib plate, and beneficial effect is:
1. the utility model has guiding gutter in the increase of milling shoe body interior, exterior mechanical is processed with the diversion rib plate being spacedly distributed, promoted the intensity of milling shoe body, reduced the probability of body bending, this kind of reinforcing mode compared with integral reinforcing, substantially do not strengthen weight and the milling area of milling shoe, guaranteed the Efficient Operation of milling shoe; Diversion rib plate external surface surfacing nickel-base alloy; Nickel-base alloy material is softer, the less injury to sleeve pipe when cover milling operation, thereby protective casing.
2. the guiding gutter of the utility model milling shoe body setting matches with diversion rib plate, when increasing milling shoe intensity, guarantees that milling shoe has enough working spaces and fluid circulation passage.
3. the utility model carcass bottom surface is provided with discharge groove, the quantity of discharge groove is preferably 7, between adjacent discharge groove, be provided with tooth, tooth is set to a, b and c three types, in a type, the quantity of ballas tooth is 8, in b type, the quantity of ballas tooth is that the quantity of ballas tooth in 9, c type is that the quantity of black diamond tooth on 7, a, b and c three types is 7; The arrangement mode of tooth is a type tooth, b type tooth, c type tooth, a type tooth, b type tooth, c type tooth and b type tooth, and a type tooth and c type tooth adopt asymmetric arrangement; The discharge groove quantity of optimizing and a type tooth and c type tooth asymmetric, has reduced to concentrate on the stress at discharge groove place to greatest extent, has reduced the generation of discharge groove junction crackle.
Accompanying drawing explanation
Fig. 1 is the high-efficiency abrasion-proof milling shoe structural representation of the utility model band diversion rib plate.
Fig. 2 is the utility model carcass bottom surface cloth tooth schematic diagram.
The specific embodiment
Consulting 2 pairs of the utility model of accompanying drawing 1 and accompanying drawing is described further.
The utility model relates to a kind of high-efficiency abrasion-proof milling shoe with diversion rib plate, structure comprises milling shoe body (1), machining is in the carcass (2) of milling shoe body (1) bottom and machining in the thread head (3) on milling shoe body (1) top, carcass bottom surface is provided with discharge groove (5), between adjacent discharge groove (5), be provided with tooth (4), tooth (4) consists of black diamond tooth (6) and ballas tooth (7), it is characterized in that, inner the increasing of described milling shoe body (1) has guiding gutter (11), milling shoe body (1) exterior mechanical is processed with the diversion rib plate (12) being spacedly distributed, diversion rib plate (12) external surface surfacing nickel-base alloy (13),
Described tooth (4) is set to a, b and c three types, in a type, the quantity of ballas tooth (7) is 8, in b type, the quantity of ballas tooth (7) is that the quantity of ballas tooth (7) in 9, c type is that the quantity of black diamond tooth (6) on 7, a, b and c three types is 7;
The arrangement mode of described tooth (4) is a type tooth, b type tooth, c type tooth, a type tooth, b type tooth, c type tooth and b type tooth, and a type tooth and c type tooth adopt asymmetric arrangement.
Preferably, described guiding gutter (11) matches with diversion rib plate (12).
Preferably, described black diamond tooth (6) adopts ridge edge formula mode cloth tooth.
Preferably, described ballas tooth (7) is positioned at black diamond tooth (6) outside.
Preferably, described black diamond tooth (6) is mutually concordant with carcass (2) lower plane.
Preferably, described ballas tooth (7) is arranged at apart from 1/3 place, carcass (2) bottom surface.
Preferably, the quantity of described discharge groove (5) is 7.
While utilizing milling shoe that the utility model relates to overlap milling, inner the increasing of milling shoe body (1) has guiding gutter (11), exterior mechanical is processed with the diversion rib plate (12) being spacedly distributed, promoted the intensity of milling shoe body, reduced the probability of body bending, this kind of reinforcing mode compared with integral reinforcing, substantially do not strengthen weight and the milling area of milling shoe, guaranteed the Efficient Operation of milling shoe; Diversion rib plate (12) external surface surfacing nickel-base alloy (13); Nickel-base alloy material is softer, the less injury to sleeve pipe when cover milling operation, thereby protective casing; The guiding gutter (11) that milling shoe body (1) arranges matches with diversion rib plate (12), when increasing milling shoe intensity, guarantees that milling shoe has enough working spaces and fluid circulation passage.
The utility model carcass (2) bottom surface is provided with discharge groove (5), the quantity of discharge groove (5) is preferably 7, between adjacent discharge groove (5), be provided with tooth (4), tooth (4) is set to a, b and c three types, in a type, the quantity of ballas tooth (7) is 8, in b type, the quantity of ballas tooth (7) is that the quantity of ballas tooth (7) in 9, c type is that the quantity of black diamond tooth (6) on 7, a, b and c three types is 7; The arrangement mode of tooth is a type tooth, b type tooth, c type tooth, a type tooth, b type tooth, c type tooth and b type tooth, and a type tooth and c type tooth adopt asymmetric arrangement; Discharge groove (5) quantity of optimizing and a type tooth and c type tooth asymmetric, has reduced to concentrate on the stress at discharge groove place to greatest extent, has reduced the generation of discharge groove junction crackle.
The above; it is only the preferably specific embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; according to the technical solution of the utility model and utility model design thereof, be equal to replacement or changed, within all should being encompassed in protection domain of the present utility model.
Claims (7)
1. the high-efficiency abrasion-proof milling shoe with diversion rib plate, structure comprises milling shoe body (1), machining is in the carcass (2) of milling shoe body (1) bottom and machining in the thread head (3) on milling shoe body (1) top, carcass bottom surface is provided with discharge groove (5), between adjacent discharge groove (5), be provided with tooth (4), tooth (4) consists of black diamond tooth (6) and ballas tooth (7), it is characterized in that, inner the increasing of described milling shoe body (1) has guiding gutter (11), milling shoe body (1) exterior mechanical is processed with the diversion rib plate (12) being spacedly distributed, diversion rib plate (12) external surface surfacing nickel-base alloy (13),
Described tooth (4) is set to a, b and c three types, in a type, the quantity of ballas tooth (7) is 8, in b type, the quantity of ballas tooth (7) is that the quantity of ballas tooth (7) in 9, c type is that the quantity of black diamond tooth (6) on 7, a, b and c three types is 7;
The arrangement mode of described tooth (4) is a type tooth, b type tooth, c type tooth, a type tooth, b type tooth, c type tooth and b type tooth, and a type tooth and c type tooth adopt asymmetric arrangement.
2. the high-efficiency abrasion-proof milling shoe with diversion rib plate according to claim 1, is characterized in that, described guiding gutter (11) matches with diversion rib plate (12).
3. the high-efficiency abrasion-proof milling shoe with diversion rib plate according to claim 1, is characterized in that, described black diamond tooth (6) adopts ridge edge formula mode cloth tooth.
4. the high-efficiency abrasion-proof milling shoe with diversion rib plate according to claim 1 and 2, is characterized in that, described ballas tooth (7) is positioned at black diamond tooth (6) outside.
5. according to the high-efficiency abrasion-proof milling shoe with diversion rib plate described in claim 1 ~ 3 any one, it is characterized in that, described black diamond tooth (6) is mutually concordant with carcass (2) lower plane.
6. according to the high-efficiency abrasion-proof milling shoe with diversion rib plate described in any one in claim 1, claim 2 and claim 4, it is characterized in that, described ballas tooth (7) is arranged at apart from 1/3 place, carcass (2) bottom surface.
7. the high-efficiency abrasion-proof milling shoe with diversion rib plate according to claim 1, is characterized in that, the quantity of described discharge groove (5) is 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320805521.5U CN203584351U (en) | 2013-12-10 | 2013-12-10 | Efficient and wear-resistant mill shoe with flow guide rib plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320805521.5U CN203584351U (en) | 2013-12-10 | 2013-12-10 | Efficient and wear-resistant mill shoe with flow guide rib plates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203584351U true CN203584351U (en) | 2014-05-07 |
Family
ID=50582287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320805521.5U Expired - Fee Related CN203584351U (en) | 2013-12-10 | 2013-12-10 | Efficient and wear-resistant mill shoe with flow guide rib plates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203584351U (en) |
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2013
- 2013-12-10 CN CN201320805521.5U patent/CN203584351U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20151210 |
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| EXPY | Termination of patent right or utility model |