CN203271678U - Combined tapered mill for descaling and drifting - Google Patents
Combined tapered mill for descaling and drifting Download PDFInfo
- Publication number
- CN203271678U CN203271678U CN 201320334477 CN201320334477U CN203271678U CN 203271678 U CN203271678 U CN 203271678U CN 201320334477 CN201320334477 CN 201320334477 CN 201320334477 U CN201320334477 U CN 201320334477U CN 203271678 U CN203271678 U CN 203271678U
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- scraping
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- descaling
- drifting
- pipe body
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Abstract
The utility model relates to an oil field well repair tool, namely, a combined tapered mill for descaling and drifting. The combined tapered mill comprises a pipe body, wherein a joint buckle connected with a pipe column is arranged at the upper end of the pipe body, four or five scraping alloy paving and welding channel slots are axially formed in the surface of the lower part of the pipe body, the channel slots are internally paved and welded with scraping alloy, water slots are arranged between the scraping alloy channel slots and are provided with a plurality of spraying water holes which are communicated with an inner cavity of the pipe body, and the water holes spray downward toward the scraping alloy by an axial direction of 45 degree. Through scientific arrangement of the scraping alloy channel slots and by combining a waterpower jet principle, the water slots are arranged reasonably; by utilizing constant high pressure spray washing and through scraping and slight milling of the scraping alloy, the descaling and casing repair effects can be greatly improved; by adopting a combined tool, integration of descaling, casing repair and drifting can realized; the combined tapered mill has a strong descaling effect and has strong descaling efficiency five to eight times that of a common tapered mill.
Description
Technical field
The utility model relates to a kind of oil well instrument, namely scrapes dirty drifting milling combined type and mills cone.
Background technology
In the prior art, mill the cone instrument and comprise body, the body upper end is processed with the joint buckle that is connected with tubing string, lower surface axially is processed with lay YD scraping alloy 6-8 road groove (helicla flute, straight trough etc.), paving weldering YD scraping alloy in it, be used for interior residual of milling oil pipe, its shortcoming is the various dirty matter (calcium carbonate, magnesium carbonate etc.) that is unfavorable for removing on internal surface of sleeve pipe.
The utility model content
The purpose of this utility model is to provide a kind of dirty drifting milling combined type of scraping of removing the various dirty matter on internal surface of sleeve pipe that is beneficial to mill cone for above-mentioned deficiency.
Technical solution of the present utility model is: scrape dirty drifting milling combined type and mill cone, comprise body, the body upper end is processed with the joint buckle that is connected with tubing string, and the body lower surface axially is processed with paving weldering scraping alloy road groove, paving weldering scraping alloy in the road groove.Paving weldering scraping alloy road groove is 4-5, between scraping alloy road groove, tank is arranged, and a plurality of injections of processing water hole on tank is sprayed the water hole and is communicated with tube cavity.The water hole is at axial 45 degree, and jet sprays to the scraping alloy downwards.
This instrument can mill cone for monolithic or combined type, is mainly used in removing the various dirty matter (calcium carbonate, magnesium carbonate etc.) on internal surface of sleeve pipe; Can play repair to casing deformation by extruding, slight milling; After being used in combination, meet the drifting length standard, can realize drifting.Particularly each oil field injection and extraction later stage, the well fouling is very serious, and the validity of overhaul water well operation pit shaft descaling tool function is the key that determines the unfreezing fishing success or failure, and this instrument is first-selected product.
The utility model has the advantages that: by the science scraping alloy road groove (interval is wider, is the 4-5 road, in order to reserve the tank space) of arranging; In conjunction with the hydraulic jet principle, the reasonable Arrangement tank utilizes continuous high-pressure spray to rinse, and by the scraping of scraping alloy, slight milling, can greatly promote scale removal, repair the cover effect.Adopt collapsible tool can realize scale removal, repair cover, drifting is integrated.This instrument has extremely strong scale removal usefulness, is 5-8 times of conventional milling cone scale removal efficient.
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Description of drawings
Fig. 1 is the utility model the first example structure sketch.
Fig. 2 is that Fig. 1 is along the B-B sectional drawing.
Fig. 3 is that Fig. 1 is along C to structure diagram.
Fig. 4 is the utility model the second example structure sketch.
Fig. 5 is that Fig. 4 is along the A-A sectional drawing.
The specific embodiment
Referring to Fig. 1-5, the component title is as follows: body 1, and road groove 2, scraping alloy 3, tank 4 sprays water hole 5, inner chamber 6.
Referring to Fig. 1,2,3, scrape dirty drifting milling combined type and mill cone, comprise body 1, body 1 upper end is processed with the joint buckle that is connected with tubing string, and body 1 lower surface axially is processed with paving weldering scraping alloy road groove 2, the interior paving weldering of road groove 2 YD scraping alloy 3, paving weldering scraping alloy road groove 2 is 4-5 along circumference, between scraping alloy road groove 2, wider tank 4 is arranged, a plurality of injections of processing water hole 5 on tank 4 is sprayed water hole 5 and is communicated with tube cavity 6.Water hole 5 sprays to scraping alloy 3 at the axial 45 downward jets of degree.In figure, scraping alloy road groove 2 forms are divided into helical groove structure.
Referring to Fig. 4,5, in figure, scraping alloy road groove 2 forms are divided into straight groove structure.And form by three sections, for combined type mills cone.
Be divided into monolithic, combined type on structure; Scraping alloy road flute profile formula is divided into straight trough, helicla flute, contains all kinds of button-type instruments of positive left-hand thread.
Method of operating: connect this instrument and go into the well, lower to the precalculated position, turn on pump rotation tubing string carries out scraping, and the pressure of the drill is not more than 2t usually, and the per hour discharge capacity of pump is not less than 30 cubic metres, and scraping is inject high pressure water simultaneously, has in time removed and cut slag.
Claims (2)
1. scrape dirty drifting milling combined type and mill cone for one kind, comprise body (1), body (1) upper end is processed with the joint buckle that is connected with tubing string, body (1) lower surface axially is processed with paving weldering scraping alloy road groove (2), paving weldering scraping alloy (3) in road groove (2), it is characterized in that paving weldering scraping alloy road groove (2) is 4-5, tank (4) is arranged between scraping alloy road groove (2), the upper processing of tank (4) a plurality of injections water holes (5) are sprayed water hole (5) and are communicated with tube cavity (6).
2. scrape dirty drifting milling combined type and mill cone according to claimed in claim 1, it is characterized in that water hole (5) is at axial 45 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320334477 CN203271678U (en) | 2013-06-12 | 2013-06-12 | Combined tapered mill for descaling and drifting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320334477 CN203271678U (en) | 2013-06-12 | 2013-06-12 | Combined tapered mill for descaling and drifting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203271678U true CN203271678U (en) | 2013-11-06 |
Family
ID=49502116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320334477 Expired - Lifetime CN203271678U (en) | 2013-06-12 | 2013-06-12 | Combined tapered mill for descaling and drifting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203271678U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2960425A1 (en) * | 2014-06-24 | 2015-12-30 | Schoeller Bleckmann Oilfield Equipment AG | Drifting system |
| CN106377051A (en) * | 2016-11-11 | 2017-02-08 | 贵州高峰石油机械股份有限公司 | Novel hairbrush pipe scraping device |
| CN108661597A (en) * | 2017-03-28 | 2018-10-16 | 中国石油化工股份有限公司 | A kind of underground work integration wellbore treatments tool and method |
-
2013
- 2013-06-12 CN CN 201320334477 patent/CN203271678U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2960425A1 (en) * | 2014-06-24 | 2015-12-30 | Schoeller Bleckmann Oilfield Equipment AG | Drifting system |
| GB2527531A (en) * | 2014-06-24 | 2015-12-30 | Schoeller Bleckmann Oilfield Equipment Ag | Drifting system |
| CN106377051A (en) * | 2016-11-11 | 2017-02-08 | 贵州高峰石油机械股份有限公司 | Novel hairbrush pipe scraping device |
| CN106377051B (en) * | 2016-11-11 | 2018-06-12 | 贵州高峰石油机械股份有限公司 | A kind of novel brush scrapes pipe device |
| CN108661597A (en) * | 2017-03-28 | 2018-10-16 | 中国石油化工股份有限公司 | A kind of underground work integration wellbore treatments tool and method |
| CN108661597B (en) * | 2017-03-28 | 2023-10-24 | 中国石油化工股份有限公司 | Underground operation integrated shaft treatment tool and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |
|
| CX01 | Expiry of patent term |