CN209724273U - A kind of more steps of variable-distance close window compound sleeve-milling cylinder - Google Patents
A kind of more steps of variable-distance close window compound sleeve-milling cylinder Download PDFInfo
- Publication number
- CN209724273U CN209724273U CN201821894534.3U CN201821894534U CN209724273U CN 209724273 U CN209724273 U CN 209724273U CN 201821894534 U CN201821894534 U CN 201821894534U CN 209724273 U CN209724273 U CN 209724273U
- Authority
- CN
- China
- Prior art keywords
- window
- cylinder
- casing section
- section mill
- milling
- 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
Links
- 238000003801 milling Methods 0.000 title claims abstract description 35
- 150000001875 compounds Chemical class 0.000 title claims abstract description 16
- 238000006073 displacement reaction Methods 0.000 claims abstract description 25
- 210000002445 nipple Anatomy 0.000 claims abstract description 21
- 241000251468 Actinopterygii Species 0.000 abstract description 14
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Dry Shavers And Clippers (AREA)
Abstract
The more steps of a kind of variable-distance disclosed by the utility model close window compound sleeve-milling cylinder, including casing section mill ontology and the top connection for being connected to casing section mill ontology upper end, the lower end of casing section mill ontology is connected with one end of displacement cylinder, the other end of displacement cylinder is flexibly connected milling head, the inner cavity top of casing section mill ontology is radially provided with die nipple, on the internal chamber wall of casing section mill ontology around die nipple be provided with it is spiral close window window tongue, the length that multistage closes window window tongue is successively increased along displacement cylinder to the direction of top connection.The more steps of the variable-distance of the utility model, which close window compound sleeve-milling cylinder, to be made screw thread in the inner wall of fish using the die nipple of casing section mill chamber body and is salvaged, and die nipple bottom setting hydrophthalmia can then carry out positive and negative formula set milling operation, cooperation multiple coil shape closes window window tongue, internal combine with outside is realized for the fish that appearance has shoulder, aperture, groove or raised form to salvage, the fish that various forms, length can be applicable in by replacing displacement cylinder, expands use scope.
Description
Technical field
The utility model belongs to set milling fishing tool technical field, and in particular to a kind of more steps of variable-distance close window compound sleeve
Mill cylinder.
Background technique
During oilfield downhole operation, for part because tube corrosion seriously fall naturally well, bridge plug become rusty for a long time dead failure,
The underground fish trouble for situations such as packer gum cover can not unseal needs to carry out set milling operation using casing section mill, after set milling
Tripping in die nipple or dipper are salvaged, often time-consuming and laborious, inefficiency.
Utility model content
Window compound sleeve-milling cylinder is closed the purpose of this utility model is to provide a kind of more steps of variable-distance, and screw thread, interior is made in realization
Fishing and set milling institutional operation, so as to carry out the salvage of underground fish efficient, safe and simplely.
The technical scheme adopted by the utility model is a kind of more steps of variable-distance close window compound sleeve-milling cylinder, including set milling
Cylinder ontology and the top connection for being connected to casing section mill ontology upper end, the lower end of the casing section mill ontology is connected with displacement cylinder
One end, the other end of the displacement cylinder is connected with milling head, and the inner cavity top of the casing section mill ontology is radially arranged
There is a die nipple, closes window window tongue around what the die nipple was provided with multiple coil shape on the internal chamber wall of the casing section mill ontology, it is described more
The length that grade closes window window tongue is successively increased along displacement cylinder to the direction of top connection.
The utility model is also characterized by
The die nipple bottom is provided with hydrophthalmia.
It is described to close one end bottom that window window tongue is in contact with the internal chamber wall of the casing section mill ontology and be provided with hydrophthalmia.
The displacement cylinder passes through screwed connection with the casing section mill ontology and milling head respectively.
The window window tongue that closes is equipped with six grades altogether, is respectively along the length for closing window window tongue described in direction of the displacement cylinder to top connection
4.0cm、4.5cm、5.0cm、5.5cm、6.0cm、6.5cm。
The window window tongue that closes near the displacement cylinder is 20cm at a distance from the die nipple bottom end.
The beneficial effects of the utility model are: the more steps of the variable-distance of the utility model close window compound sleeve-milling cylinder using set milling
The die nipple of cylinder chamber body is made screw thread in the inner wall of fish and is salvaged, and die nipple bottom setting hydrophthalmia can then carry out positive and negative formula
Set milling operation, cooperation multiple coil shape close window window tongue, have the fish of the forms such as shoulder, aperture, groove or protrusion real appearance
Show internal combine with outside to be salvaged, the fish that can be applicable in various forms, length by replacing displacement cylinder expands
Its use scope.
Detailed description of the invention
Fig. 1 is that the more steps of variable-distance of the utility model close the structural schematic diagram of window compound sleeve-milling cylinder；
Fig. 2 is the structural schematic diagram that window window tongue is closed in Fig. 1.
In figure, 1. top connections, 2. close window window tongue, 3. die nipples, 4. displacement cylinders, 5. milling heads, 6. hydrophthalmias.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
The more steps of variable-distance provided by the utility model close the structure of window compound sleeve-milling cylinder as shown in Figure 1, including casing section mill
Ontology and the top connection 1 for being connected to casing section mill ontology upper end, the lower end of casing section mill ontology are connected with one end of displacement cylinder 4,
The other end of displacement cylinder 4 is connected with milling head 5, and the inner cavity top of casing section mill ontology is radially provided with die nipple 3, casing section mill
Window window tongue 2 is closed around what die nipple 3 was provided with multiple coil shape on the internal chamber wall of ontology, and multistage closes the length of window window tongue 2 along displacement
Cylinder 4 is successively increased to the direction of top connection 1.
Further, the bottom of die nipple 3 is provided with hydrophthalmia 6, and hydrophthalmia 6 mills fluid course when operation as set, realizes
Positive and negative formula set milling operation.
Referring to fig. 2, it closes one end bottom that window window tongue 2 is in contact with the internal chamber wall of casing section mill ontology and is also equipped with hydrophthalmia 6, use
Fluid course when set mills operation closes window window tongue 2 to the resistance of liquid stream when reducing positive milling operation.
Further, displacement cylinder 4 passes through screwed connection with casing section mill ontology and milling head 5 respectively.Due in actual job mistake
Cheng Zhong, the form of fish is complicated, different in size, therefore can be according to the displacement cylinder of the form, length replacement different length rained
4, it determines suitable casing section mill length, carries out corresponding fishing.
Further, it closes window window tongue 2 and is equipped with six grades altogether, close the length of window window tongue to this six grades of the direction of top connection along displacement cylinder
Degree is respectively 4.0cm, 4.5cm, 5.0cm, 5.5cm, 6.0cm, 6.5cm.Window window tongue 2 and 3 bottom of die nipple are closed near displacement cylinder 4
The distance H at end is 20cm.
In use, selection length displacement cylinder 4 appropriate connects by respectively with casing section mill ontology, milling head 5 by screwed connection
First 1 is connected to fishing string, is cut using milling head 5 fish top, and the inner wall followed by die nipple 3 in fish makes screw thread
Accordingly salvaged；There is the fish of the forms such as shoulder, aperture, groove or protrusion to appearance, can use multistage and close the card of window window tongue 2
Enter wherein engaging fish, is cooperatively salvaged thus internal, external to fish progress.
Claims (6)
1. a kind of more steps of variable-distance close window compound sleeve-milling cylinder, which is characterized in that including casing section mill ontology and be connected to the set
The top connection of cylinder ontology upper end is milled, the lower end of the casing section mill ontology is connected with one end of displacement cylinder, the displacement cylinder
The other end is connected with milling head, and the inner cavity top of the casing section mill ontology is radially provided with die nipple, the casing section mill sheet
Window window tongue is closed around what the die nipple was provided with multiple coil shape on the internal chamber wall of body, the length for closing window window tongue is along displacement cylinder
It is successively increased to the direction of top connection.
2. the more steps of variable-distance as described in claim 1 close window compound sleeve-milling cylinder, which is characterized in that the die nipple bottom setting
There is hydrophthalmia.
3. the more steps of variable-distance as described in claim 1 close window compound sleeve-milling cylinder, which is characterized in that described to close window window tongue and institute
It states one end bottom that the internal chamber wall of casing section mill ontology is in contact and is provided with hydrophthalmia.
4. the more steps of variable-distance as described in claim 1 close window compound sleeve-milling cylinder, which is characterized in that the displacement cylinder respectively with
The casing section mill ontology and milling head pass through screwed connection.
5. the more steps of variable-distance as described in claim 1 close window compound sleeve-milling cylinder, which is characterized in that the window window tongue that closes is set altogether
Have six grades, along the length that window window tongue is closed described in direction of the displacement cylinder to top connection be respectively 4.0cm, 4.5cm, 5.0cm, 5.5cm,
6.0cm、6.5cm。
6. the more steps of variable-distance as described in claim 1 close window compound sleeve-milling cylinder, which is characterized in that described near the change
The window window tongue that closes away from cylinder is 20cm at a distance from the die nipple bottom end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821894534.3U CN209724273U (en) | 2018-11-18 | 2018-11-18 | A kind of more steps of variable-distance close window compound sleeve-milling cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821894534.3U CN209724273U (en) | 2018-11-18 | 2018-11-18 | A kind of more steps of variable-distance close window compound sleeve-milling cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209724273U true CN209724273U (en) | 2019-12-03 |
Family
ID=68658731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821894534.3U Expired - Fee Related CN209724273U (en) | 2018-11-18 | 2018-11-18 | A kind of more steps of variable-distance close window compound sleeve-milling cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209724273U (en) |
-
2018
- 2018-11-18 CN CN201821894534.3U patent/CN209724273U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201358755Y (en) | Underground switch slide bushing | |
| CN205503076U (en) | Down -hole junk slip socket | |
| CN104790917B (en) | Intelligent pole plug water drainage gas production device | |
| CN107060702B (en) | A kind of coupling type underground throttle device | |
| CN107075930A (en) | Compact diced system and method | |
| NZ602388A (en) | Valve system | |
| CN103321624B (en) | A desirable ball seat sliding sleeve of screw-type | |
| CN209724273U (en) | A kind of more steps of variable-distance close window compound sleeve-milling cylinder | |
| CN105888650B (en) | A kind of gas well memory-type integration regulating multi-zone production rate measuring cell | |
| CN209308660U (en) | A kind of dual-grip reversible coiled tubing fish fishing tool | |
| CN204627562U (en) | Intelligent pole plug water drainage gas production device | |
| CN201100110Y (en) | A driller milling wrecking male wimble | |
| CN206190258U (en) | Special spray gun of annotating of oil field wellhead sealing device | |
| CN201103360Y (en) | Underground falling objects salvaging barrel | |
| CN201428408Y (en) | General overshot for oil well workover operation | |
| CN203769700U (en) | Dragging and milling canister | |
| CN105350941B (en) | Push-down instruction device and rubber plug downlink indicate cementing head | |
| CN207420516U (en) | A kind of preventing oil pipe split junk mill | |
| CN202510076U (en) | Leader pin cap | |
| CN206458346U (en) | Pumping rod anti-corrosive device | |
| CN207349458U (en) | Manual soft sealing butterfly valve | |
| CN206845149U (en) | A kind of stepping oil recovery valve body | |
| CN203756101U (en) | Through dual slider socket | |
| CN201874505U (en) | Multifunctional milling fishing tool | |
| CN206458384U (en) | A kind of tubing string iron pin catcher |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |