CN202560139U - Milling and fishing combination tool - Google Patents
Milling and fishing combination tool Download PDFInfo
- Publication number
- CN202560139U CN202560139U CN2012201547464U CN201220154746U CN202560139U CN 202560139 U CN202560139 U CN 202560139U CN 2012201547464 U CN2012201547464 U CN 2012201547464U CN 201220154746 U CN201220154746 U CN 201220154746U CN 202560139 U CN202560139 U CN 202560139U
- Authority
- CN
- China
- Prior art keywords
- milling
- fishing
- cone rod
- combination tool
- upper joint
- 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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Abstract
The utility model relates to tools for petroleum workover operation, in particular to a milling and fishing combination tool. The combination tool comprises an upper joint and a cone rod. The cone rod is designed at the lower end of the upper joint, a main water nozzle is reserved in the centers of the upper joint and the cone rod, and a fishing thread is designed on the outer conical surface of the cone rod. The lower end of the upper joint is connected with a barrel sleeved outside the cone rod, a mill head is welded at the lower end of the barrel, and auxiliary water nozzles are obliquely reserved on the outer walls of the cone rod and communicated with the main water nozzles. The milling and fishing combination tool has the advantages that fishing can be carried out directly after milling so that a construction process can be simplified; the defect that strings are required to run into wells frequently since operators need to lift milling sleeves after milling and then descend fishing tools to fish when falling pipes are buried and jammed is overcome.
Description
Technical field:
The utility model relates to a kind of petroleum well workover power tool, and particularly a kind of cover mills the combination tool of salvaging one.
Background technology:
At present, in the petroleum well workover operation, when the tubing junk was buried the chance card, casing section mill overlapped and mills under needing, and need trip out casing section mill after cover mills, and descended fishing tool to salvage again.
The utility model content:
The technical problem that the utility model will solve provides a kind of cover and mills the combination tool of salvaging one, this tool implementation cover mill the back and directly salvage, reduce working procedure.Overcome existing tubing junk and buried and to trip out casing section mill after cover mills when meeting card, descended fishing tool to salvage again, running string deficiency often.
The technical scheme that the utility model is taked is: a kind of cover mills the combination tool of salvaging one, comprises top connection and awl bar, and the top connection lower end is designed with the awl bar, and top connection has main hydrophthalmia with awl bar center, is designed with the salvaging screw thread on the male cone (strobilus masculinus) of awl bar; The top connection lower end is connected with cylindrical shell, and barrel jacket is contained in the awl bar outside, and the cylindrical shell lower end is welded with milling head, obliquely on the outer wall of awl bar has a secondary hydrophthalmia, and secondary hydrophthalmia is connected with main hydrophthalmia.
The beneficial effect of the utility model is: the utility model is because the mode that adopted die nipple to be connected with casing section mill, thereby has and overlap the function that can directly salvage after milling, reduced working procedure, practiced thrift workover cost.
Description of drawings:
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further detailed explanation.
Accompanying drawing is the structural representation of the utility model.
The specific embodiment:
Shown in accompanying drawing, a kind of cover mills the combination tool of salvaging one, comprises top connection 1 and awl bar 4, and top connection 1 lower end is designed with awl bar 4, and top connection 1 has main hydrophthalmia 5 with awl bar 4 centers, is designed with on the male cone (strobilus masculinus) of awl bar 4 and salvages screw thread 6; Top connection 1 lower end is connected with cylindrical shell 7, and cylindrical shell 7 is sleeved on awl bar 4 outsides, and cylindrical shell 7 lower ends are welded with milling head 2, obliquely on the outer wall of awl bar 4 has a secondary hydrophthalmia 3, and secondary hydrophthalmia 3 is connected with main hydrophthalmia 5.
During the utility model work, the turn on pump circulation slowly started rotating disk when cylindrical shell 7 was gone into the well near top of fish, put while changeing to make the fish head get into cylindrical shell 7.Continue cover and mill, when awl bar 4 got into the fish chamber, weight indicator the pressure of the drill reduced, and when the pressure of the drill reduces 10KN, reduced rotating speed and carried out thread making, dragged for to obtain on the back and carried, if carry the motionless back-off that then carries out.Whole process pump truck keeps circulation, returns out ground until sand etc.If main hydrophthalmia 5 is obstructed, then flow circulates through secondary hydrophthalmia 3 when awl bar 4 inserts the fish chamber.Secondary hydrophthalmia 3 has the effect that prevents because of main hydrophthalmia 5 obstruction bit freezings.
It is understandable that; More than about the specific descriptions of the utility model; Only be used to the utility model is described and be not to be subject to the described technical scheme of the utility model embodiment; Those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model, to reach identical technique effect; As long as satisfy the use needs, all within the protection domain of the utility model.
Claims (1)
1. a cover mills the combination tool of salvaging one, comprises top connection (1) and awl bar (4), and top connection (1) lower end is designed with awl bar (4), and top connection (1) and awl bar (4) center have main hydrophthalmia (5), are designed with on the male cone (strobilus masculinus) of awl bar (4) and salvage screw thread (6); It is characterized in that: top connection (1) lower end is connected with cylindrical shell (7), and cylindrical shell (7) is sleeved on awl bar (4) outside, and cylindrical shell (7) lower end is welded with milling head (2), the oblique secondary hydrophthalmia (3) that has on the outer wall of awl bar (4), and secondary hydrophthalmia (3) is connected with main hydrophthalmia (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201547464U CN202560139U (en) | 2012-04-12 | 2012-04-12 | Milling and fishing combination tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201547464U CN202560139U (en) | 2012-04-12 | 2012-04-12 | Milling and fishing combination tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202560139U true CN202560139U (en) | 2012-11-28 |
Family
ID=47209804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201547464U Expired - Fee Related CN202560139U (en) | 2012-04-12 | 2012-04-12 | Milling and fishing combination tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202560139U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821473A (en) * | 2014-03-03 | 2014-05-28 | 中煤特殊凿井有限责任公司 | Hole bottom falling object fisher in drilling |
| CN115030679A (en) * | 2021-03-04 | 2022-09-09 | 中国石油天然气集团有限公司 | Male cone for coiled tubing salvage slim-hole choke and use method |
-
2012
- 2012-04-12 CN CN2012201547464U patent/CN202560139U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821473A (en) * | 2014-03-03 | 2014-05-28 | 中煤特殊凿井有限责任公司 | Hole bottom falling object fisher in drilling |
| CN115030679A (en) * | 2021-03-04 | 2022-09-09 | 中国石油天然气集团有限公司 | Male cone for coiled tubing salvage slim-hole choke and use method |
| CN115030679B (en) * | 2021-03-04 | 2024-05-14 | 中国石油天然气集团有限公司 | Male cone for coiled tubing fishing slim hole throttle and use method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20130412 |