CN204113169U - Milling fisher - Google Patents
Milling fisher Download PDFInfo
- Publication number
- CN204113169U CN204113169U CN201420562098.5U CN201420562098U CN204113169U CN 204113169 U CN204113169 U CN 204113169U CN 201420562098 U CN201420562098 U CN 201420562098U CN 204113169 U CN204113169 U CN 204113169U
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- milling
- spline
- slips
- urceolus
- milling head
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Abstract
The utility model provides a kind of milling fisher, top connection is connected with spline urceolus, spline urceolus top arranges pin of slipping out of the hand, spline outer barrel is provided with splined shaft, slips can at spring, move down under cone acting in conjunction, spring upper end is provided with snap ring to ensure that slips is on same cross section all the time, milling head top arranges the conical surface and opens smoothly to coordinate slips, grinding milling cylinder and milling head composition milling system, ensure all to be within the scope of milling in whole wellbore section, splined shaft is provided with side circulation port, milling head is provided with bottom cycle hole, outside spline urceolus and grinding milling cylinder, same position is provided with longitudinal circulating slot, spline outer tube inner wall is provided with spline draw-in groove, spline urceolus is provided with spline and spline draw-in groove is engaged, slips is respectively equipped with slips upper inclined surface and slips lower bevel, its realization is to the milling of down-hole fish and salvaging, one-trip string can realize the process to fish under Holes of Complicated Wells, decrease the number of times made a trip, reduce operating risk and cost.
Description
Technical field
The utility model relates to oil well repairing operation apparatus field, particularly relates to a kind of milling fisher.
Background technology
At present, Oil/gas Well is in production, measure, the operation process decline movement pattern of fish conditions such as well workover are complicated, the down-hole string that existing rigidity is stronger, power tool etc., also such as non-salvaging type bridging plug is had, the fish of the soft or hard combination of the subsidiary rubber parts such as packer, complicated fish causes workover treatment to have to pass through multiple trips changing different millings, the underground operation tools such as salvaging thoroughly can complete the process to down-hole fish, although through continuous instrument research and development and improvement, still can not realize milling and the salvaging two kinds of functions to down-hole fish without any a kind of instrument simultaneously, this just needs one badly can milling, the workover tool can salvaged again, to process fish under Holes of Complicated Wells.
Summary of the invention
In order to overcome the above problems, the utility model provides a kind of milling fisher, its structure is simple, convenient operation, in milling process can at any time upper lifting pipe post judge fish remainder whether can salvaged go out well, realize the milling to down-hole fish and salvaging, one-trip string can realize the process to fish under Holes of Complicated Wells simultaneously, decrease the number of times made a trip, improve operating efficiency.
The technical solution of the utility model is: provide a kind of milling fisher, it is by top connection, spline urceolus, grinding milling cylinder, splined shaft, milling head, slips, snap ring, cone, spring, to slip out of the hand pin, side circulation port, bottom cycle hole, circulating slot, spline draw-in groove, spline, slips upper inclined surface and slips lower bevel composition, top connection is connected with spline urceolus, and spline urceolus top arranges pin of slipping out of the hand, and spline outer barrel is provided with splined shaft, and slips can at spring, move down under cone acting in conjunction, spring upper end is provided with snap ring to ensure that slips is on same cross section all the time, milling head top arranges the conical surface and opens smoothly to coordinate slips, grinding milling cylinder and milling head composition milling system, ensure all to be within the scope of milling in whole wellbore section, splined shaft is provided with side circulation port, milling head is provided with bottom cycle hole, outside spline urceolus and grinding milling cylinder, same position is provided with longitudinal circulating slot, spline outer tube inner wall is provided with spline draw-in groove, spline urceolus is provided with spline and spline draw-in groove is engaged, slips is respectively equipped with slips upper inclined surface and slips lower bevel.
Described splined shaft can carry out the displacement of axial 30mm in spline urceolus.
Described slips can move down under the effect of spring and cone, and opens with the upper cone match of milling head, opens rear maintenance and has 5% cross and win to milling head external diameter, to keep the remainder enough resistance being carried fish up.
Described pin of slipping out of the hand can design shearing threshold value according to actual needs, and when needs are slipped out of the hand, cuts off pin realize slipping out of the hand smoothly of top tubing string with the upper lifting force being greater than shearing threshold value.
Described milling head end angle is 120 °, and angle can change according to actual needs.
Compared with prior art, the beneficial effects of the utility model are: realize the milling to down-hole fish and salvaging, and one-trip string can realize the process to fish under Holes of Complicated Wells, decrease the number of times made a trip, improve operating efficiency, reduce operating risk and cost.
Accompanying drawing explanation
Further the utility model is illustrated with reference to the accompanying drawings below
Accompanying drawing 1 is the sectional view under the utility model normal operating conditions;
Accompanying drawing 2 be the utility model slip out of the hand pin cut off after the slips up instrument entirety sectional view of slipping out of the hand under state;
Accompanying drawing 3 is structural representations of the utility model spline urceolus;
Accompanying drawing 4 is structural representations of the utility model spline draw-in groove;
Accompanying drawing 5 is structural representations of the utility model spline;
Accompanying drawing 6 is structural representations of the utility model slips;
Shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6: 1, top connection, 2, spline urceolus, 3, grinding milling cylinder, 4, splined shaft, 5, milling head, 6, slips, 7, snap ring, 8, cone, 9, spring, 10, to slip out of the hand pin, 11, side circulation port, 12, bottom cycle hole, 13, circulating slot, 14, spline draw-in groove, 15, spline, 16, slips upper inclined surface, 17, slips lower bevel.
Detailed description of the invention
Be described in further detail the utility model below in conjunction with accompanying drawing, it should be noted that, accompanying drawing, only for explaining the utility model, being schematically illustrating the utility model embodiment, and can not being interpreted as restriction of the present utility model.
In description of the present utility model, except as otherwise noted, term " on ", D score, "left", "right", " interior ", " outward ", " front end ", " rear end ", " head ", the orientation of the instruction such as " afterbody " or position relationship be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " is connected ", " connection " should be interpreted broadly, such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, shown in Fig. 6, milling fisher, it is by top connection 1, spline urceolus 2, grinding milling cylinder 3, splined shaft 4, milling head 5, slips 6, snap ring 7, cone 8, spring 9, to slip out of the hand pin 10, side circulation port 11, bottom cycle hole 12, circulating slot 13, spline draw-in groove 14, spline 15, slips upper inclined surface 16 and slips lower bevel 17 form, and top connection 1 is connected with spline urceolus 2, and spline urceolus 2 top arranges pin 10 of slipping out of the hand, and spline urceolus 2 inside is provided with splined shaft 4, and slips 6 can at spring 9, move down under cone 8 acting in conjunction, spring 9 upper end is provided with snap ring 7 to ensure that slips 6 is on same cross section all the time, milling head 5 top arranges the conical surface and opens smoothly to coordinate slips 6, grinding milling cylinder 3 and milling head 5 form milling system, ensure all to be within the scope of milling in whole wellbore section, splined shaft 4 is provided with side circulation port 11, milling head 5 is provided with bottom cycle hole 12, outside spline urceolus 2 and grinding milling cylinder 3, same position is provided with longitudinal circulating slot 13, spline urceolus 2 inwall is provided with spline draw-in groove 14, it is engaged with spline draw-in groove 14 that spline urceolus 2 is provided with spline 15, slips 6 is respectively equipped with slips upper inclined surface 16 and slips lower bevel 17.
Described splined shaft 4 can carry out the displacement of axial 30mm in spline urceolus 2.
Described slips 6 can move down under the effect of spring 9 and cone 8, and opens with the upper cone match of milling head 5, opens rear maintenance and has 5% cross and win to milling head 5 external diameter, to keep the remainder enough resistance being carried fish up.
Described pin 10 of slipping out of the hand can design shearing threshold value according to actual needs, and when needs are slipped out of the hand, cuts off pin realize slipping out of the hand smoothly of top tubing string with the upper lifting force being greater than shearing threshold value.
Described milling head 5 end angle is 120 °, and angle can change according to actual needs.
When reality uses, top connection 1 with enter well casing post bottom and be connected, well is entered with tubing string, after observation well head suspending weight judges to have arrived fish position, apply the pressure of the drill transmitting torque starts milling fish to milling head 5, enter fish body when milling head 5 and march to forward after grinding milling cylinder 3 contacts outside fish, the milling system be jointly made up of grinding milling cylinder 3 and milling head 5 will cover the cross section of whole fish, the milling to fish is realized under the sustained delivery of moment of torsion, the drilling cuttings that milling produces returns to well head with circulating slot 13, in milling process can at any time upper lifting pipe post judge fish remainder whether can salvaged go out well, specific works process is: upper lifting pipe post, slips 6 moves down under the effect of spring 9 and cone 8, and open with the upper cone match of milling head 5, open the win excessively that rear slips 6 keeps having the external diameter of milling head 5 5%, the cavity inner wall that slips 6 gets out in fish inside with milling head 5 is engaged, if now upper lifting force is greater than the drag between fish and the borehole wall, then under the effect of upper lifting force, fish remainder can be salvaged well, thus the milling completed fish and fishing.
If in use, milling head 5 not drilling depth, and on put forward the situation cannot salvaging fish, upper lifting force can be strengthened caused and carry, cut off pin 10 of slipping out of the hand, milling fishing tool being slipped out of the hand at pin 10 place of slipping out of the hand, ensureing that top working string is from tripping out smoothly, avoids the further complexity causing down-hole situation within the border.
The utility model structure is simple, and convenient operation, can realize the milling to down-hole fish and salvaging, one-trip string can realize the process to fish under Holes of Complicated Wells simultaneously, decreases the number of times made a trip, improves operating efficiency, reduces operating risk and cost.
The above is embodiment of the present utility model, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All any amendment, equivalent replacement, improvement etc. done within spirit of the present utility model and principle all should be contained within right of the present utility model.
Claims (5)
1. milling fisher, it is by top connection (1), spline urceolus (2), grinding milling cylinder (3), splined shaft (4), milling head (5), slips (6), snap ring (7), cone (8), spring (9), to slip out of the hand pin (10), side circulation port (11), bottom cycle hole (12), circulating slot (13), spline draw-in groove (14), spline (15), slips upper inclined surface (16) and slips lower bevel (17) composition, it is characterized in that: top connection (1) is connected with spline urceolus (2), spline urceolus (2) top arranges pin (10) of slipping out of the hand, spline urceolus (2) inside is provided with splined shaft (4), slips (6) can in spring (9), move down under cone (8) acting in conjunction, spring (9) upper end is provided with snap ring (7) to ensure that slips (6) is on same cross section all the time, milling head (5) top arranges the conical surface and opens smoothly to coordinate slips (6), grinding milling cylinder (3) and milling head (5) composition milling system, ensure all to be within the scope of milling in whole wellbore section, splined shaft (4) is provided with side circulation port (11), milling head (5) is provided with bottom cycle hole (12), spline urceolus (2) is provided with longitudinal circulating slot (13) with grinding milling cylinder (3) outside same position, spline urceolus (2) inwall is provided with spline draw-in groove (14), it is engaged with spline draw-in groove (14) that spline urceolus (2) is provided with spline (15), slips (6) is respectively equipped with slips upper inclined surface (16) and slips lower bevel (17).
2. milling fisher according to claim 1, is characterized in that: splined shaft (4) can carry out the displacement of axial 30mm in spline urceolus (2).
3. milling fisher according to claim 1, it is characterized in that: slips (6) can move down under the effect of spring (9) and cone (8), and open with the upper cone match of milling head (5), open rear maintenance has 5% interference to milling head (5) external diameter, to keep the remainder enough resistance being carried fish up.
4. milling fisher according to claim 1, it is characterized in that: pin of slipping out of the hand (10) can design shearing threshold value according to actual needs, and when needs are slipped out of the hand, cut off pin with the upper lifting force being greater than shearing threshold value and realize slipping out of the hand smoothly of top tubing string.
5. milling fisher according to claim 1, is characterized in that: milling head (5) end angle is 120 °, and angle can change according to actual needs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420562098.5U CN204113169U (en) | 2014-09-26 | 2014-09-26 | Milling fisher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420562098.5U CN204113169U (en) | 2014-09-26 | 2014-09-26 | Milling fisher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204113169U true CN204113169U (en) | 2015-01-21 |
Family
ID=52330493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420562098.5U Expired - Fee Related CN204113169U (en) | 2014-09-26 | 2014-09-26 | Milling fisher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204113169U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223893A (en) * | 2016-09-13 | 2016-12-14 | 吉林大学 | A kind of multi-functional interior flat dart |
| CN111648744A (en) * | 2020-06-03 | 2020-09-11 | 中国石油化工股份有限公司 | Workover tubular column subassembly and reducing descaler thereof |
| CN112196485A (en) * | 2020-11-11 | 2021-01-08 | 大庆石油管理局有限公司 | Horizontal well is with cover milling tool |
| CN112360413A (en) * | 2020-12-03 | 2021-02-12 | 中国石油天然气股份有限公司 | Milling deblocking and stuck releasing packer, milling tool and using method thereof |
| CN113202437A (en) * | 2021-06-02 | 2021-08-03 | 中石化石油工程技术服务有限公司 | High antitorque cutting ferrule of preventing drags for integration instrument |
-
2014
- 2014-09-26 CN CN201420562098.5U patent/CN204113169U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223893A (en) * | 2016-09-13 | 2016-12-14 | 吉林大学 | A kind of multi-functional interior flat dart |
| CN106223893B (en) * | 2016-09-13 | 2018-08-21 | 吉林大学 | A kind of multi-functional interior flat dart |
| CN111648744A (en) * | 2020-06-03 | 2020-09-11 | 中国石油化工股份有限公司 | Workover tubular column subassembly and reducing descaler thereof |
| CN112196485A (en) * | 2020-11-11 | 2021-01-08 | 大庆石油管理局有限公司 | Horizontal well is with cover milling tool |
| CN112360413A (en) * | 2020-12-03 | 2021-02-12 | 中国石油天然气股份有限公司 | Milling deblocking and stuck releasing packer, milling tool and using method thereof |
| CN113202437A (en) * | 2021-06-02 | 2021-08-03 | 中石化石油工程技术服务有限公司 | High antitorque cutting ferrule of preventing drags for integration instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20190926 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |