CN207420516U - A kind of preventing oil pipe split junk mill - Google Patents
A kind of preventing oil pipe split junk mill Download PDFInfo
- Publication number
- CN207420516U CN207420516U CN201721557744.9U CN201721557744U CN207420516U CN 207420516 U CN207420516 U CN 207420516U CN 201721557744 U CN201721557744 U CN 201721557744U CN 207420516 U CN207420516 U CN 207420516U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- junk mill
- mill head
- junk
- oil pipe
- 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.)
- Active
Links
Abstract
A kind of preventing oil pipe split junk mill,Including upper body,Junk mill head,Sleeve,Wing,Drill rod thread is arranged at the top of upper body,Junk mill head,The material of wing is hard alloy,Wing is arranged on the lower part of junk mill head,The upper weld of junk mill head is on the lower face of upper body,The top of sleeve and the lower part of upper body connect,Junk mill head,Wing is in sleeve,The lower part of sleeve sets guide port,Upper body,Junk mill head,Sleeve is installed together rear coaxial line,Diameter difference between the outside of junk mill head and the inside of sleeve is more than 24mm,The outer diameter of sleeve is less than 7 11mm of oil well or well casing inner diameter,Even under most drift condition between sleeve and casing,Also the annular space that the oil pipe fallen in casing can be inserted between junk mill head and sleeve,The wing of junk mill head lower part can be with milling to the junk in oil pipe,The oil pipe for being inserted in the annular space between junk mill head and sleeve will not split,It will not be by asphyxia by external pressure on the chest and abdomen to internal surface of sleeve pipe,Junk in the smooth milling oil pipe of energy and oil pipe.
Description
Technical field
The utility model is a kind of instrument of oilfield oil well, is a kind of preventing oil pipe split junk mill.
Background technology
Oilfield oil well has some equipment during production and workover treatment and instrument drops in well, is known as junk,
Some junks are overlapped or are nested together, if any junk be oil pipe, also have junk in oil pipe, and these junks are with existing
Fishing operation and fishing tool cannot be salvaged, only take the junk in first milling oil pipe, consider further that salvaging or
Junk in the method processing well of milling oil pipe.If with the junk in existing junk mill elder generation milling oil pipe, junk mill will be put in
In oil pipe, since junk is in the underground of upper 1000m, underground feelings can not possibly be done fully aware of again, along with operating worker
Operational capacity is bad, and the top pressure that will result in junk mill splits oil pipe, and the oil pipe after pressure is split swings to shaft in wall, and junk mill is further continued for pressing
Squeeze rive after oil pipe, make trouble of lost tool in hole by casing become fast knot, can not junk mill and salvaging, increase the well workover of oil-water well
Difficulty and workover cost can cause heavy economic losses.
The content of the invention
The purpose of this utility model is a kind of preventing oil pipe split junk mill of design, overcomes the problems, such as that existing junk mill exists, smoothly
Junk in milling oil pipe.
What the purpose of this utility model was realized in：Including upper body, junk mill head, sleeve, wing, brill is arranged at the top of upper body
Bar screw thread, junk mill head, the material of wing are hard alloy, and wing is arranged on the lower part of junk mill head, and the upper weld of junk mill head exists
On the lower face of upper body, the top of sleeve and the lower part of upper body connect, and junk mill head, wing are in sleeve, and the lower part of sleeve is set
Guide port is put, upper body, junk mill head, sleeve are installed together rear coaxial line, straight between the outside of junk mill head and the inside of sleeve
Footpath difference is more than 24mm, and the outer diameter of sleeve is less than oil well or well casing inner diameter 7-11mm.
The beneficial effects of the utility model are：Upper body, junk mill head, sleeve are installed together rear coaxial line, junk mill head it is outer
Diameter difference between side and the inside of sleeve is more than 24mm, and the outer diameter of sleeve is less than oil well or well casing inner diameter 7-11mm, set
Even under most drift condition between cylinder and casing, the oil pipe fallen in casing can be also inserted between junk mill head and sleeve
Annular space, the wing of junk mill head lower part can be with milling to the junk in oil pipe, the ring being inserted between junk mill head and sleeve
The oil pipe in shape space will not split, will not be by asphyxia by external pressure on the chest and abdomen to inner tube wall, therefore, the utility model can reach goal of the invention, gram
Taken existing junk mill there are the problem of, junk that can smoothly in milling oil pipe and oil pipe has significant economic benefit.
Description of the drawings
Attached drawing 1 is the installation diagram of the utility model embodiment.
Specific embodiment
The embodiment of 1 pair of the utility model illustrates below in conjunction with the accompanying drawings.
As shown in Figure 1, the embodiment of the utility model includes upper body 2, junk mill first 3, sleeve 4, wing 5, the top of upper body 2
There is drill rod thread 1, can be connected with the drilling rod of set milling tubing string lower part, junk mill is first 3, the material of wing 5 is hard alloy, hardness
It is much higher than the hardness of junk, can be with milling junk, wing 5 is arranged on the lower part of junk mill first 3, and wing 5 is four, makes its intensity
Reach optimum efficiency with milling efficiency, the upper weld of junk mill first 3 is on the lower face of upper body 2, top and the upper body 2 of sleeve 4
Lower part connection, junk mill is first 3, wing 5 be in sleeve 4, the lower part setting guide port 6 of sleeve 4, and upper body 2, junk mill are first 3, sleeve
4 are installed together rear coaxial line, and the diameter difference between the outside of junk mill first 3 and the inside of sleeve 4 is more than 24mm, sleeve 4 it is outer
Footpath is less than oil well or well casing inner diameter 7-11mm.Sleeve 4 between oil well or the casing of water injection well even at most deviating
In the case of, the oil pipe in casing that also can will fall within oil well or water injection well is inserted in the annular space between junk mill first 3 and sleeve 4,
The wing 5 of first 3 lower part of junk mill can be with milling to the junk in oil pipe.
The end face of guide port 6 is helicoid, and rotation can be generated when touching junk, so as to which oil pipe smoothly is imported into set
In cylinder 4.
Claims (1)
1. a kind of preventing oil pipe split junk mill, including upper body（2）, junk mill head（3）, sleeve（4）, wing（5）, upper body（2）Top
There is drill rod thread（1）, junk mill head（3）, wing（5）Material for hard alloy, it is characterized in that：Wing（5）It is arranged on junk mill head
（3）Lower part, junk mill head（3）Upper weld in upper body（2）Lower face on, sleeve（4）Top and upper body（2）Lower part
Connection, junk mill head（3）, wing（5）In sleeve（4）It is interior, sleeve（4）Lower part set guide port（6）, upper body（2）, junk mill head
（3）, sleeve（4）It is installed together rear coaxial line, junk mill head（3）Outside and sleeve（4）Inside between diameter difference be more than
24mm, sleeve（4）Outer diameter be less than oil well or well casing inner diameter 7-11mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721557744.9U CN207420516U (en) | 2017-11-21 | 2017-11-21 | A kind of preventing oil pipe split junk mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721557744.9U CN207420516U (en) | 2017-11-21 | 2017-11-21 | A kind of preventing oil pipe split junk mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207420516U true CN207420516U (en) | 2018-05-29 |
Family
ID=62303839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721557744.9U Active CN207420516U (en) | 2017-11-21 | 2017-11-21 | A kind of preventing oil pipe split junk mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207420516U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031692A (en) * | 2020-09-14 | 2020-12-04 | 北京博德世达石油技术股份有限公司 | External positioning milling composite milling shoe, and oil drilling equipment and method adopting same |
-
2017
- 2017-11-21 CN CN201721557744.9U patent/CN207420516U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031692A (en) * | 2020-09-14 | 2020-12-04 | 北京博德世达石油技术股份有限公司 | External positioning milling composite milling shoe, and oil drilling equipment and method adopting same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205503076U (en) | Down -hole junk slip socket | |
| CN105443057A (en) | Torque-withstanding type double-acting releasing tool | |
| CN105604499A (en) | A direct connection type double-step threaded joint | |
| CN204200083U (en) | A kind of drill stem type is with the micro-hole reaming tool of brill | |
| CN207420516U (en) | A kind of preventing oil pipe split junk mill | |
| CN204002734U (en) | A kind of pneumatic setting restriction choke | |
| CN206681707U (en) | Hammering oil discharger | |
| CN207245664U (en) | Class of restricting and tubing junk integration fishing tool | |
| CN105604484A (en) | Drag-reducing and torque-reducing device | |
| CN204040941U (en) | Salvage the special centralizing tool of sleeve pipe | |
| CN204899776U (en) | Dropping assembly | |
| CN104514528B (en) | Reducer packing element lytic agent delivery device | |
| CN204238870U (en) | A kind of drill rod connector | |
| CN209212173U (en) | Coiled tubing connector | |
| CN104251122A (en) | Non-excavation horizontal directional drilling electric drill rod | |
| CN209145538U (en) | A kind of circular arc magnetic sheet strong magnetic die | |
| CN203729977U (en) | Emergency safety release device for measurement-while-drilling instruments | |
| CN206418989U (en) | A kind of safe die nipple | |
| CN206346713U (en) | A kind of hermetic seal oil casing threaded connection structure | |
| CN205990895U (en) | A kind of fluid pressure type is combined fish fishing tool | |
| CN104373055A (en) | Drill pipe connector | |
| CN204851108U (en) | Sleeve pipe trades set tieback ware that links closely | |
| CN205089267U (en) | Coiled tubing salvages a section of thick bamboo | |
| CN204212729U (en) | A kind of without box cupling shaft fishing tool | |
| CN203939476U (en) | Downhole falling object catch sleeve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |