CN208858325U - A kind of three gear wheel drag bits - Google Patents
A kind of three gear wheel drag bits Download PDFInfo
- Publication number
- CN208858325U CN208858325U CN201821235422.7U CN201821235422U CN208858325U CN 208858325 U CN208858325 U CN 208858325U CN 201821235422 U CN201821235422 U CN 201821235422U CN 208858325 U CN208858325 U CN 208858325U
- Authority
- CN
- China
- Prior art keywords
- protruding portion
- gear wheel
- bearing
- fixed plate
- sealing ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Branch Pipes, Bends, And The Like (AREA)
Abstract
The utility model belongs to a kind of three gear wheel drag bits；Including fixed plate, the bottom of fixed plate is respectively equipped with the first protruding portion, second protruding portion and third protruding portion, first protruding portion, angle between second protruding portion and third protruding portion is 120 °, the inside of first protruding portion is equipped with the first gear wheel by first bearing, first bearing is equipped with the first sealing ring, the inside of second protruding portion is equipped with the second gear wheel by second bearing, second bearing is equipped with the second sealing ring, the inside of third protruding portion is equipped with third gear wheel by 3rd bearing, 3rd bearing is equipped with third sealing ring, first protruding portion, heap is welded with tungsten alloy scraper respectively in the outside of second protruding portion and third protruding portion, top connection is connected at the top of fixed plate, top connection is connected with screw drill；The advantages of simple with structure, design is rationally, easy for installation, and operation is reliable, improves the one-time success rate for boring plug cleaning, while also reducing repetition flow chart.
Description
Technical field
The utility model belongs to the well repairing device technical field of petroleum industry, specially a kind of three gear wheel drag bits.
Background technique
Currently, oil, gas and water well are often covered in the fouling construction on daily drilling out or processing internal surface of sleeve pipe
There are cement sheath or dirty block not to clean out on inside pipe wall, such as to lower step process: lower packet beats bridge plug or Back-off Pipe String is met
Resistance, down toward design position can not there is also sometimes cement sheath, dirty block falls off and cement block or hard scale block is caused to bury dead tubing string,
Deal with also more troublesome, situation seriously needs drilling rod to be buckled to, and processing also needs set milling to lower part, salvages, and this construction consumes
Work is time-consuming, and the construction time is long, and operating cost investment is larger, causes greatly to waste, is unfavorable for the effective development of enterprise, at present also
There is no suitable tool that can preferably complete internal surface of sleeve pipe cleaning work.
Utility model content
It is simple, easy to use that a kind of structure is provided the purpose of the utility model is to overcome defect in the prior art,
When there is drilling out or cleaning internal surface of sleeve pipe, on one side bores plug, while clear up, guarantee internal surface of sleeve pipe is unimpeded, smooth no-sundries
Three gear wheel drag bit of one kind.
Purpose of the utility model is realized as follows: including fixed plate, it is prominent that the bottom of fixed plate is respectively equipped with first
Portion, the second protruding portion and third protruding portion, the angle between the first protruding portion, the second protruding portion and third protruding portion are 120 °,
The inside of first protruding portion is equipped with the first gear wheel by first bearing, and first bearing is equipped with the first sealing ring, and second is prominent
The inside in portion is equipped with the second gear wheel by second bearing, and second bearing is equipped with the second sealing ring, the inside of third protruding portion
Third gear wheel is installed by 3rd bearing, 3rd bearing is equipped with third sealing ring, first protruding portion, the second protruding portion
Heap is welded with tungsten alloy scraper respectively with the outside of third protruding portion, and top connection, top connection and screw rod are connected at the top of fixed plate
It bores and is connected.
Preferably, the end face collective effect of first gear wheel, the second gear wheel and third gear wheel is in one plane.
The utility model has structure simple, and design is rationally, easy for installation, and operation is reliable, can guarantee the cleaning of pit shaft, mentions
The advantages of height bores the one-time success rate of plug cleaning, while also reducing repetition flow chart, raising operation actual effect.
Detailed description of the invention
The structural schematic diagram of Fig. 1 the utility model.
Fig. 2 is the utility model bottom cross-sectional view.
Specific embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, now compareing Detailed description of the invention
Specific embodiment of the present utility model, identical label indicates identical component in the various figures.To make simplified form, in each figure
Part relevant to utility model is only schematically shown, they do not represent its practical structures as product.
As shown in Figure 1, 2, the utility model is a kind of three gear wheel drag bits, including fixed plate 1, the bottom of fixed plate 1
It is respectively equipped with the first protruding portion 2, the second protruding portion 3 and third protruding portion 4, the first protruding portion 2, the second protruding portion 3 and third are prominent
The angle between portion 4 is 120 ° out, and the inside of the first protruding portion 2 is equipped with the first gear wheel 6, first bearing 5 by first bearing 5
It is equipped with the first sealing ring 7, the inside of the second protruding portion 3 is equipped with the second gear wheel 9 by second bearing 8, sets in second bearing 8
There is the second sealing ring 10, the inside of third protruding portion 4 is equipped with third gear wheel 12 by 3rd bearing 11, sets in 3rd bearing 11
There is third sealing ring 13, heap is welded with tungsten alloy respectively in the outside of first protruding portion 2, the second protruding portion 3 and third protruding portion 4
Scraper 14, the top of fixed plate 1 are connected with top connection 15, and top connection 15 is connected with screw drill 16.First gear wheel 6,
The end face collective effect of two gear wheels 9 and third gear wheel 12 is in one plane.
The working principle of the utility model is as follows: first gear wheel 6, the second gear wheel 9 and third gear wheel 12 of the utility model
It is referred to as three gear wheels, top connection 15 is connected by when use with screw drill 16, using the power of screw drill 16, by the first gear wheel 6,
Two gear wheels 9 and third gear wheel 12 after turn on pump circulation is normal, slowly transfer pressurization 5- with up to the face of plug or the abnormal well section above 5m
10KN, tricone bit are drilled down into, while heap is distinguished in the outside of the first protruding portion 2, the second protruding portion 3 and third protruding portion 4
It is welded with tungsten alloy scraper 14, tungsten alloy scraper 14 carries out milling to the part that do not bore, by cement block, the cement on internal surface of sleeve pipe
Ring, fouling are cleaned out, and clast takes pit shaft out of with circulation fluid, guarantee being normally carried out for lower step process, after cleaning up, are risen and to bore
Tubing string is filled in, so as to improve the ability of cleaning internal surface of sleeve pipe, process is reduced and does over again, improve operation actual effect, also reduce cost branch
Out and mitigate staff labor intensity.The utility model secrete 38, lower J4-606, under secrete shallow 63, T408, lower T4-221, south 79-6,
The field application of more than the 20 mouth well such as southern 104-1 improves the primary construction rate for clearing up internal surface of sleeve pipe to mesh from previous 62.3%
Preceding 92.8%, improves 30.5%, and strong also reduces operating cost expenditure, improves operation actual effect, firmly gets execute-in-place
The consistent favorable comment of employee and unit.
This tool has that structure is simple, and design is rationally, easy for installation, and operation is reliable, can guarantee the cleaning of pit shaft, improves and bores plug
The one-time success rate of cleaning, while repetition flow chart is also reduced, operation actual effect is improved, cost payout is also reduced, it is deep
The favorable comment of execute-in-place employee and unit is obtained, there is very big promotional value.
The above embodiments are merely examples for clarifying the description, and does not limit the embodiments.For institute
For the general technical staff in category field, other various forms of variations or change can also be made on the basis of the above description
It is dynamic.There is no necessity and possibility to exhaust all the enbodiments, and the obvious variation or change thus amplified out
It is dynamic to be created among scope of protection of the claims still in the utility model.
Claims (2)
1. a kind of three gear wheel drag bits, including fixed plate (1), it is characterised in that: the bottom of fixed plate (1) is respectively equipped with first
Protruding portion (2), the second protruding portion (3) and third protruding portion (4), the first protruding portion (2), the second protruding portion (3) and third are prominent
Angle between portion (4) is 120 °, and the inside of the first protruding portion (2) is equipped with the first gear wheel (6) by first bearing (5), the
One bearing (5) is equipped with the first sealing ring (7), and the inside of the second protruding portion (3) is equipped with the second gear wheel by second bearing (8)
(9), second bearing (8) is equipped with the second sealing ring (10), and the inside of third protruding portion (4) is equipped with by 3rd bearing (11)
Third gear wheel (12), 3rd bearing (11) are equipped with third sealing ring (13), first protruding portion (2), the second protruding portion (3)
Heap is welded with tungsten alloy scraper (14) respectively with the outside of third protruding portion (4), and fixed plate is connected with top connection at the top of (1)
(15), top connection (15) is connected with screw drill (16).
2. a kind of three gear wheels drag bit according to claim 1, it is characterised in that: first gear wheel (6), second
The end face collective effect of gear wheel (9) and third gear wheel (12) is in one plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821235422.7U CN208858325U (en) | 2018-07-26 | 2018-07-26 | A kind of three gear wheel drag bits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821235422.7U CN208858325U (en) | 2018-07-26 | 2018-07-26 | A kind of three gear wheel drag bits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208858325U true CN208858325U (en) | 2019-05-14 |
Family
ID=66413770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821235422.7U Expired - Fee Related CN208858325U (en) | 2018-07-26 | 2018-07-26 | A kind of three gear wheel drag bits |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208858325U (en) |
-
2018
- 2018-07-26 CN CN201821235422.7U patent/CN208858325U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190514 Termination date: 20200726 |