CN108412445A - The special long conical surface looks for channel pen tip milling cone - Google Patents
The special long conical surface looks for channel pen tip milling cone Download PDFInfo
- Publication number
- CN108412445A CN108412445A CN201810485403.8A CN201810485403A CN108412445A CN 108412445 A CN108412445 A CN 108412445A CN 201810485403 A CN201810485403 A CN 201810485403A CN 108412445 A CN108412445 A CN 108412445A
- Authority
- CN
- China
- Prior art keywords
- milling
- pen tip
- ontology
- bar shaped
- band
- 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.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B29/00—Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B29/00—Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
- E21B29/10—Reconditioning of well casings, e.g. straightening
Abstract
The present invention relates to a kind of special long conical surfaces to look for channel pen tip milling cone.It is main to solve the problems, such as that prior art well workover needs multiple tripping in set, milling class tool construction risk height and long construction period step by step.It is characterized in that：The ontology（1）Center cavity is hydrophthalmia（5）, ontology（1）Lower end is pen tip shape guide shoe（4）, ontology（1）Upper end is box cupling（7）；Ontology（1）Middle upper end is provided with step, and 4 part bar shaped milling bands are evenly distributed on step, is by one layer of solder flux per part bar shaped milling band（3）Weld one layer of hard alloy particle（2）；Bar shaped milling band lower body（1）On stud with two spiral shape milling bands（6）, spiral shape milling band（6）For one layer of hard alloy particle of solder flux welding（2）.The special long conical surface looks for channel pen tip milling cone, it can be achieved that the looking for of big displacement and small latus rectum well, getting through pipeline in one step and carrying out, and reduces construction risk, shortens construction period.
Description
Technical field
The present invention relates to a kind of workover tool in oilfield engineering technical field, especially a kind of special long conical surface looks for channel pen
Sharp milling cone.
Background technology
Current well workover technology generally use plays lead stamp and implements set damage situation, reuses milling, shaping class tool is covered
Pipe reparation, but, deflection big for casing fracture displacement be larger and well there are local buckling, needs multiple tripping in step by step
Set, milling class tool, construction risk height and long construction period.
Invention content
It is more step by step the technical problem to be solved by the present invention is to overcome prior art well workover present in background technology to need
The problem of secondary tripping in set, milling class tool construction risk height and long construction period, and the special long conical surface of one kind is provided and looks for channel pen
Sharp milling cone, the special long conical surface look for channel pen tip milling cone, it can be achieved that the looking for of big displacement and small latus rectum well, get through pipeline in one step into
Row, reduces construction risk, shortens construction period.
The present invention solves the problems, such as that it can reach by following technical solution：The special long conical surface looks for channel pen tip milling cone,
Including main body, the body central cavity is hydrophthalmia, and ontology lower end is pen tip shape guide shoe, and ontology upper end is box cupling；In ontology
Upper end is provided with step, and 4 part bar shaped milling bands are evenly distributed on step, is to weld one layer firmly by one layer of solder flux per part bar shaped milling band
Matter alloying pellet；Two spiral shape milling bands are studded in bar shaped milling band lower body, spiral shape milling band is solder flux welding
One layer of hard alloy particle.
The bar shaped milling band connection of every spiral shape milling band and two intervals；The bar shaped milling band and spiral shape
Milling strip length ratio is 2:3；The hard alloy particle is YG hard alloy particles.
The present invention can have the advantages that compared with above-mentioned background technology：The special long conical surface looks for channel pen tip milling
It bores due to, it can be achieved that the looking for of big displacement and small latus rectum well, get through pipeline in one step and carry out, reducing construction wind using the above structure
Danger, shortens construction period, improves construction efficiency, looks for, diameter enlarging and milling significant effect.
Description of the drawings
Attached drawing 1 is the structural schematic diagram of the present invention；
Attached drawing 2 is the sectional view of the a-a lines along Fig. 1；
Attached drawing 3 is the sectional view of the c-c lines along Fig. 1.
In figure：1- ontologies；2- hard alloy particles；3- solder flux；4- guide shoes；5- hydrophthalmias；6- spiral shape milling bands；7-
Box cupling.
Specific implementation mode：
The invention will be further described below in conjunction with the accompanying drawings：
Attached drawing 1 combines shown in Fig. 2, Fig. 3, which looks for the channel pen tip milling cone, including ontology 1,1 center cavity of ontology to be
Hydrophthalmia 5,1 lower end of ontology are pen tip shape guide shoe 4, can carry out looking for passage construction conducive to tool；1 top of ontology is box cupling 7；Ontology 1
Middle upper end is provided with step, and 4 part bar shaped milling bands are evenly distributed on step, is to weld one by one layer of solder flux 3 per part bar shaped milling band
Layer hard alloy particle 2；Two spiral shape milling bands 6, every spiral shape milling band 6 are studded in bar shaped milling band lower body 1
The bar shaped milling band connection being spaced with two；Spiral shape milling band 6 is one layer of hard alloy particle 2 of solder flux welding；It is described hard
Matter alloying pellet 2 is YG alloying pellets；The bar shaped milling band and spiral shape milling band are in the ontology between guide shoe 4 and box cupling 7
Outer surface.
The special long conical surface looks for channel pen tip milling cone, guide shoe part to be set to the lower end of ontology, and milling part is set to this
The middle and upper part of body, YG alloys are set to efficient milling shoes middle and upper part, lengthen pen tip body milling alloy and are divided into two parts welding, are divided into this
Bar shaped milling band below the hoop of body top and spiral shape milling band immediately below；The bar shaped milling band and spiral shape milling
Strip length ratio is 2:3, keep milling effect more preferable, spiral milling is reducing milling, can once realize multistage milling, reduce and apply
Work process, at the same when greatly reducing milling bit freezing probability.Bar shaped milling band can be more effectively to milling part into traveling
One step milling is modified.
The special long conical surface looks for channel pen tip milling cone, uses and looks for channel and diameter enlarging integral structure, in diameter enlarging part
It is covered with alloy, alloy component is in the top of tool, and alloy paving is welded into spiral shape, and diameter enlarging latus rectum is from 73mm to 114mm.It should
Tool body lower end is designed as drilling rod pen tip, can carry out looking for passage construction conducive to tool.G.I.H is only needed to visit to fish when well workover
Top, you can carry out looking for passage construction, after finding channel, add appropriate bit pressure, which can carry out diameter enlarging construction, will be by
Lower part casing swage is damaged to just, then the other tools of tripping in can complete broken well repair again, this tool construction is simple, makes
With conveniently, broken well reparation can be widely applied to.
In use, milling is first filed up and down, and then rotation construction, rotation construction construction parameter：Bit pressure 20-30KN；Discharge capacity 0.3-
0.5m3/min；Revolution 30-50r/min, the tool have different specifications according to construction casing size difference.
Since the tool has the function of looking for channel, diameter enlarging and repairing casing, big displacement activity broken well may be implemented
Big displacement quantity and the progress of big section casing damaged well section effectively look for diameter enlarging and reconditioning casing, look for diameter enlarging and shaping efficient, effect is good
It is good.
Claims (4)
1. a kind of special long conical surface looks for channel pen tip milling cone, including main body（1）, it is characterised in that：The ontology（1）Center cavity
For hydrophthalmia（5）, ontology（1）Lower end is pen tip shape guide shoe（4）, ontology（1）Upper end is box cupling（7）；Ontology（1）Middle upper end is provided with
Step, uniformly distributed 4 part bar shaped milling bands on step are by one layer of solder flux per part bar shaped milling band（3）One layer of hard of welding closes
Gold particle（2）；Bar shaped milling band lower body（1）On stud with two spiral shape milling bands（6）, spiral shape milling band（6）For weldering
One layer of hard alloy particle of agent welding（2）.
2. the special long conical surface according to claim 1 looks for channel pen tip milling cone, it is characterised in that：Every spiral shape mill
Milling band（6）The bar shaped milling band connection being spaced with two.
3. the special long conical surface according to claim 1 or 2 looks for channel pen tip milling cone, it is characterised in that：The bar shaped milling
Band and spiral shape milling band（6）Length ratio is 2:3.
4. the special long conical surface according to claim 1 looks for channel pen tip milling cone, it is characterised in that：The hard alloy particle
（2）For YG hard alloy particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810485403.8A CN108412445A (en) | 2018-05-21 | 2018-05-21 | The special long conical surface looks for channel pen tip milling cone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810485403.8A CN108412445A (en) | 2018-05-21 | 2018-05-21 | The special long conical surface looks for channel pen tip milling cone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108412445A true CN108412445A (en) | 2018-08-17 |
Family
ID=63140092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810485403.8A Pending CN108412445A (en) | 2018-05-21 | 2018-05-21 | The special long conical surface looks for channel pen tip milling cone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108412445A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110863788A (en) * | 2019-12-10 | 2020-03-06 | 贵州高峰石油机械股份有限公司 | Hydraulic bendable pen point device |
| CN111980614A (en) * | 2020-08-28 | 2020-11-24 | 中国石油天然气股份有限公司 | Hydraulic large-angle bendable milling tool |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203925375U (en) * | 2014-06-24 | 2014-11-05 | 中国石油集团渤海钻探工程有限公司 | A kind of abrasionproof piloted mill |
| CN204371176U (en) * | 2014-12-10 | 2015-06-03 | 中国石油天然气股份有限公司 | Complex and spiral milling is bored |
| CN105089505A (en) * | 2015-09-09 | 2015-11-25 | 扬州睿德石油机械有限公司 | Efficient drill cement tool |
| CN205503071U (en) * | 2016-04-20 | 2016-08-24 | 中国石油天然气股份有限公司 | Plush copper is guided long conical surface of son and is milled awl |
| RU176205U1 (en) * | 2017-07-31 | 2018-01-12 | Акционерное общество "Научно-производственное предприятие "Бурсервис" | Milling cutter |
-
2018
- 2018-05-21 CN CN201810485403.8A patent/CN108412445A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203925375U (en) * | 2014-06-24 | 2014-11-05 | 中国石油集团渤海钻探工程有限公司 | A kind of abrasionproof piloted mill |
| CN204371176U (en) * | 2014-12-10 | 2015-06-03 | 中国石油天然气股份有限公司 | Complex and spiral milling is bored |
| CN105089505A (en) * | 2015-09-09 | 2015-11-25 | 扬州睿德石油机械有限公司 | Efficient drill cement tool |
| CN205503071U (en) * | 2016-04-20 | 2016-08-24 | 中国石油天然气股份有限公司 | Plush copper is guided long conical surface of son and is milled awl |
| RU176205U1 (en) * | 2017-07-31 | 2018-01-12 | Акционерное общество "Научно-производственное предприятие "Бурсервис" | Milling cutter |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110863788A (en) * | 2019-12-10 | 2020-03-06 | 贵州高峰石油机械股份有限公司 | Hydraulic bendable pen point device |
| CN110863788B (en) * | 2019-12-10 | 2023-11-28 | 贵州高峰石油机械股份有限公司 | Hydraulic bendable nib device |
| CN111980614A (en) * | 2020-08-28 | 2020-11-24 | 中国石油天然气股份有限公司 | Hydraulic large-angle bendable milling tool |
| CN111980614B (en) * | 2020-08-28 | 2022-11-15 | 中国石油天然气股份有限公司 | Hydraulic large-angle bendable milling tool |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180817 |
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| WD01 | Invention patent application deemed withdrawn after publication |