CN205189803U - Wash -over fishing tool - Google Patents
Wash -over fishing tool Download PDFInfo
- Publication number
- CN205189803U CN205189803U CN201520985224.2U CN201520985224U CN205189803U CN 205189803 U CN205189803 U CN 205189803U CN 201520985224 U CN201520985224 U CN 201520985224U CN 205189803 U CN205189803 U CN 205189803U
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- CN
- China
- Prior art keywords
- die nipple
- hydrophthalmia
- tool joint
- crossover sub
- tool
- 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 discloses a wash -over fishing tool, including top -down fixed connection's tool joint, milling pipe, milling shoe in proper order, be provided with the die nipple that is used for salvaging the fish in the milling pipe. The die nipple pass through the crossover sub with tool joint fixed connection. Tool joint is provided with the hydrophthalmia along the axis, the crossover sub is provided with the hydrophthalmia along the axis, the die nipple is provided with the hydrophthalmia along the axis, tool joint's hydrophthalmia the hydrophthalmia of crossover sub the hydrophthalmia of die nipple communicates in proper order. The utility model discloses a wash -over fishing tool is running the drilling tool into the well, utilizes cover miller utensil cover to mill and is possessed the back by the sticking of tool in the pit, need not pull out of hole, need not unload the miller utensil of trapping, can continue to run the drilling tool into the well, utilizes die nipple and fish to be connected, pulls out of hole, pull the fish out, so, need only once run the drilling tool into the well, once pull out of hole, salvage the in -process, set miller utensil need not be dismantled and just the salvage can be accomplished, efficiency is salvaged to great the improvement, and greatly reduced salvages the cost, lightens salvage intensity greatly.
Description
Technical field
The utility model relates to the fishing tool of a kind of fish, particularly relates to a kind of cover milling fishing tool.
Background technology
Fall into the so-called fish such as drilling tool and component in well.For salvaging the instrument normally packaged milling tool of fish.In prior art, packaged milling tool comprise be fixedly connected sequentially from top to bottom tool joint 1, milling pipe 2, milling shoe 3.During salvaging, first packaged milling tool is connected to drilling rod lower end, more lower brill, sharp packaged milling tool cover milling down-hole is by bit freezing tool, down-hole is separated by between bit freezing tool and the borehole wall, then, pulls out of hole, unload packaged milling tool, lower brill, utilizes drilling rod lower end to be connected with fish, then pulls out of hole, pulled out by fish again.Therefore, when salvaging fish, must carry out twice time and bore, twice trip-out, dismounting packaged milling tool just can complete salvage, and salvaging efficiency is extremely low, salvages cost high, salvages intensity maximum.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of cover milling fishing tool, this cover milling fishing tool need only carry out once lower boring, once pull out of hole, in salvaging process, packaged milling tool need not be dismantled and just can complete salvage, greatly improve and salvage efficiency, greatly reduce and salvage cost, greatly alleviate salvaging intensity.
In order to solve the problems of the technologies described above, cover milling fishing tool of the present utility model, comprise be fixedly connected sequentially from top to bottom tool joint, milling pipe, milling shoe, be provided with the die nipple for salvaging fish in described milling pipe.
Described die nipple is fixedly connected with described tool joint by crossover sub.
Described tool joint is provided with hydrophthalmia along axis, and described crossover sub is provided with hydrophthalmia along axis, and described die nipple is provided with hydrophthalmia along axis, and the hydrophthalmia of the hydrophthalmia of described tool joint, the hydrophthalmia of described crossover sub, described die nipple is communicated with successively.
The shape of described tool joint is cylinder, the upper diameter of described tool joint is less than the lower diameter of this tool joint, butt male cone (strobilus masculinus) shoulder is formed between the top of described tool joint and the bottom of this tool joint, the outer surface of upper of described tool joint is circumferentially adjusted and is provided with annular groove, the upper surface central authorities of described tool joint are provided with the conical screw hole for being fixedly connected with drilling rod, lower butt inner conical surface shoulder is formed between described conical screw hole and described hydrophthalmia, the lower surface central authorities of described tool joint are provided with the conical screw hole for being fixedly connected with described crossover sub, butt inner conical surface shoulder is formed between described conical screw hole and described hydrophthalmia, the lower end outside face of described tool joint is provided with the thread head of screw thread formation for being fixedly connected with described milling pipe.
The middle part of described crossover sub is adapter body, the shape of described adapter body is cylinder or prism, the top of described crossover sub is the conically-tapered threaded head for being fixedly connected with described tool joint, the diameter of described conically-tapered threaded head root is less than the diameter of described adapter body, annular shoulder is formed between described conically-tapered threaded head and described adapter body, the bottom of described crossover sub is the conically-tapered threaded head for being fixedly connected with described die nipple, the diameter of described conically-tapered threaded head root is less than the diameter of described adapter body, annular shoulder is formed between described conically-tapered threaded head and described adapter body.
Described die nipple comprises die nipple connector portions, die nipple connecting portion, die nipple main part from top to bottom successively, and described die nipple connector portions, die nipple connecting portion, die nipple main part are integral pieces or are connected as a single entity.
The shape of described die nipple connector portions is cylinder, the shape of described die nipple connecting portion is cylinder, the diameter of described die nipple connecting portion is less than the diameter of described die nipple connector portions, lower butt male cone (strobilus masculinus) shoulder is formed between described die nipple connecting portion and described die nipple connector portions, the upper surface central authorities of described die nipple connector portions are provided with the conical screw hole for connecting described crossover sub, form lower butt inner conical surface shoulder between described conical screw hole and described hydrophthalmia.
The shape of described die nipple main part is lower cone, and the side of described die nipple main part is provided with for the screw thread to fish thread making spinner.
Described for comprising upper flank and lower flank to the screw thread of fish thread making spinner, described upper flank is perpendicular to described lower flank, and the width of described upper flank is less than the width of described lower flank.
The bottom of described die nipple main part is at least provided with a profile groove in the axial direction.
Cover milling fishing tool of the present utility model compared with prior art has following beneficial effect.
1, the technical program is owing to have employed in described milling pipe the technological means of the die nipple be provided with for salvaging fish, at lower brill, packaged milling tool is utilized to overlap milling down-hole by bit freezing tool, after down-hole is separated between bit freezing tool and the borehole wall, need not pull out of hole, packaged milling tool need not be unloaded, lower brill can be continued, die nipple is utilized to be connected with fish, pull out of hole, fish is pulled out, so, lower boring need only be carried out once, once pull out of hole, in salvaging process, packaged milling tool need not be dismantled and just can complete salvage, greatly improve and salvage efficiency, greatly reduce and salvage cost, greatly alleviate salvaging intensity.
2, the technological means that is fixedly connected with described tool joint by crossover sub owing to have employed described die nipple of the technical program, so, be conducive to installing, dismounting die nipple, be conducive to the position regulating die nipple.
3, the technical program is provided with hydrophthalmia owing to have employed described tool joint along axis, described crossover sub is provided with hydrophthalmia along axis, described die nipple is provided with hydrophthalmia along axis, the technological means that the hydrophthalmia of the hydrophthalmia of described tool joint, the hydrophthalmia of described crossover sub, described die nipple is communicated with successively, so, salvaging efficiency can be improved.
4, the technical program due to the shape that have employed described tool joint be cylinder, the upper diameter of described tool joint is less than the lower diameter of this tool joint, butt male cone (strobilus masculinus) shoulder is formed between the top of described tool joint and the bottom of this tool joint, the outer surface of upper of described tool joint is circumferentially adjusted and is provided with annular groove, the upper surface central authorities of described tool joint are provided with the conical screw hole for being fixedly connected with drilling rod, lower butt inner conical surface shoulder is formed between described conical screw hole and described hydrophthalmia, the lower surface central authorities of described tool joint are provided with the conical screw hole for being fixedly connected with described crossover sub, butt inner conical surface shoulder is formed between described conical screw hole and described hydrophthalmia, the lower end outside face of described tool joint is provided with screw thread and forms technological means for the thread head be fixedly connected with described milling pipe, so, the Structure & Intensity of tool joint can be made all to be optimized, also be conducive to producing and processing.
5, the technical program due to the middle part that have employed described crossover sub be adapter body, the shape of described adapter body is cylinder or prism, the top of described crossover sub is the conically-tapered threaded head for being fixedly connected with described tool joint, the diameter of described conically-tapered threaded head root is less than the diameter of described adapter body, annular shoulder is formed between described conically-tapered threaded head and described adapter body, the bottom of described crossover sub is the conically-tapered threaded head for being fixedly connected with described die nipple, the diameter of described conically-tapered threaded head root is less than the diameter of described adapter body, the technological means of annular shoulder is formed between described conically-tapered threaded head and described adapter body, so, be conducive to production and processing, install firmly.
6, the technical program comprises die nipple connector portions, die nipple connecting portion, die nipple main part from top to bottom successively owing to have employed described die nipple, the technological means that described die nipple connector portions, die nipple connecting portion, die nipple main part are integral piece or are connected as a single entity, so, different cover milling fishing tools can be produced according to actual conditions.
7, the technical program due to the shape that have employed described die nipple connector portions be cylinder, the shape of described die nipple connecting portion is cylinder, the diameter of described die nipple connecting portion is less than the diameter of described die nipple connector portions, lower butt male cone (strobilus masculinus) shoulder is formed between described die nipple connecting portion and described die nipple connector portions, the upper surface central authorities of described die nipple connector portions are provided with the conical screw hole for connecting described crossover sub, the technological means of lower butt inner conical surface shoulder is formed between described conical screw hole and described hydrophthalmia, so, the Structure & Intensity of die nipple can be made all to be optimized, also be conducive to producing and processing.
8, the technical program due to the shape that have employed described die nipple main part be lower cone, the side of described die nipple main part is provided with the technological means for the screw thread to fish thread making spinner, so to be conducive between fish firm is connected.
9, the technical program is described for comprising upper flank and lower flank to the screw thread of fish thread making spinner owing to have employed, described upper flank is perpendicular to described lower flank, the width of described upper flank is less than the technological means of the width of described lower flank, so, not only be conducive to improving the connection fastness to fish, and be conducive to the intensity improving screw thread.
10, the technical program is at least provided with the technological means of a profile groove in the axial direction due to the bottom that have employed described die nipple main part, so, be conducive to carrying out thread making to the interface of fish.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, cover milling fishing tool of the present utility model is described in further detail.
Fig. 1 is the structural representation of packaged milling tool in prior art.
Fig. 2 is the structural representation of the utility model cover milling fishing tool.
Fig. 3 is the structural representation of tool joint in Fig. 2.
Fig. 4 is the structural representation of crossover sub in Fig. 2.
Fig. 5 is the structure enlarged diagram of die nipple in Fig. 2.
Fig. 6 be in Fig. 5 A to partial structurtes enlarged diagram.
Description of reference numerals is as follows.
1 ~ tool joint;
1-1 ~ hydrophthalmia;
1-2 ~ upper butt male cone (strobilus masculinus) shoulder;
1-3 ~ annular groove;
1-4 ~ conical screw hole;
1-5 ~ lower butt inner conical surface shoulder;
1-6 ~ thread head;
1-7 ~ upper butt inner conical surface shoulder;
1-8 ~ conical screw hole;
2 ~ milling pipe;
3 ~ milling shoe;
4 ~ crossover sub;
4-1 ~ adapter body;
4-2 ~ conically-tapered threaded head;
4-3 ~ annular shoulder;
4-4 ~ conically-tapered threaded head;
4-5 ~ annular shoulder;
4-6 ~ hydrophthalmia;
5 ~ die nipple;
5-1 ~ die nipple connector portions;
5-2 ~ die nipple connecting portion;
5-3 ~ die nipple main part;
5-4 ~ lower butt male cone (strobilus masculinus) shoulder;
5-5 ~ annular groove;
5-6 ~ lower butt inner conical surface shoulder;
5-7 ~ hydrophthalmia;
5-8 ~ profile groove;
5-9 ~ upper flank;
5-10 ~ lower flank;
5-11 ~ conical screw hole.
Detailed description of the invention
As shown in Figure 2, one that present embodiment provides cover milling fishing tool, comprise be fixedly connected sequentially from top to bottom tool joint 1, milling pipe 2, milling shoe 3, be provided with the die nipple 5 for salvaging fish in described milling pipe 2.
Present embodiment is owing to have employed in described milling pipe the technological means of the die nipple be provided with for salvaging fish, at lower brill, packaged milling tool is utilized to overlap milling down-hole by bit freezing tool, after down-hole is separated between bit freezing tool and the borehole wall, need not pull out of hole, packaged milling tool need not be unloaded, lower brill can be continued, die nipple is utilized to be connected with fish, pull out of hole, fish is pulled out, so, lower boring need only be carried out once, once pull out of hole, in salvaging process, packaged milling tool need not be dismantled and just can complete salvage, greatly improve and salvage efficiency, greatly reduce and salvage cost, greatly alleviate salvaging intensity.
The first step as present embodiment is improved, and as shown in Figure 2, described die nipple 5 is fixedly connected with described tool joint 1 by crossover sub 4.
The technological means that present embodiment is fixedly connected with described tool joint by crossover sub owing to have employed described die nipple, so, be conducive to installing, dismantling die nipple, be conducive to the position regulating die nipple.
Second step as present embodiment improves, as shown in Figures 2 to 5, described tool joint 1 is provided with hydrophthalmia 1-1 along axis, described crossover sub 4 is provided with hydrophthalmia 4-6 along axis, described die nipple 5 is provided with hydrophthalmia 5-7 along axis, and the hydrophthalmia 5-7 of the hydrophthalmia 1-1 of described tool joint 1, the hydrophthalmia 4-6 of described crossover sub 4, described die nipple 5 is communicated with successively.
Present embodiment is provided with hydrophthalmia owing to have employed described tool joint along axis, described crossover sub is provided with hydrophthalmia along axis, described die nipple is provided with hydrophthalmia along axis, the technological means that the hydrophthalmia of the hydrophthalmia of described tool joint, the hydrophthalmia of described crossover sub, described die nipple is communicated with successively, so, salvaging efficiency can be improved.
The 3rd step as present embodiment is improved, as shown in Figure 3, the shape of described tool joint 1 is cylinder, the upper diameter of described tool joint 1 is less than the lower diameter of this tool joint 1, butt male cone (strobilus masculinus) shoulder 1-2 is formed between the top of described tool joint 1 and the bottom of this tool joint 1, the outer surface of upper of described tool joint 1 is circumferentially adjusted and is provided with annular groove 1-3, the upper surface central authorities of described tool joint 1 are provided with the conical screw hole 1-4 for being fixedly connected with drilling rod, lower butt inner conical surface shoulder 1-5 is formed between described conical screw hole 1-4 and described hydrophthalmia 1-1, the lower surface central authorities of described tool joint 1 are provided with the conical screw hole 1-8 for being fixedly connected with described crossover sub 4, butt inner conical surface shoulder 1-7 is formed between described conical screw hole 1-8 and described hydrophthalmia 1-1, the lower end outside face of described tool joint 1 is provided with the thread head 1-6 of screw thread formation for being fixedly connected with described milling pipe 2.
Present embodiment due to the shape that have employed described tool joint be cylinder, the upper diameter of described tool joint is less than the lower diameter of this tool joint, butt male cone (strobilus masculinus) shoulder is formed between the top of described tool joint and the bottom of this tool joint, the outer surface of upper of described tool joint is circumferentially adjusted and is provided with annular groove, the upper surface central authorities of described tool joint are provided with the conical screw hole for being fixedly connected with drilling rod, lower butt inner conical surface shoulder is formed between described conical screw hole and described hydrophthalmia, the lower surface central authorities of described tool joint are provided with the conical screw hole for being fixedly connected with described crossover sub, butt inner conical surface shoulder is formed between described conical screw hole and described hydrophthalmia, the lower end outside face of described tool joint is provided with screw thread and forms technological means for the thread head be fixedly connected with described milling pipe, so, the Structure & Intensity of tool joint can be made all to be optimized, also be conducive to producing and processing.
The 4th step as present embodiment is improved, as shown in Figure 4, the middle part of described crossover sub 4 is adapter body 4-1, the shape of described adapter body 4-1 is cylinder or prism, the top of described crossover sub 4 is the conically-tapered threaded head 4-2 for being fixedly connected with described tool joint 1, the diameter of described conically-tapered threaded head 4-2 root is less than the diameter of described adapter body 4-1, annular shoulder 4-3 is formed between described conically-tapered threaded head 4-2 and described adapter body 4-1, the bottom of described crossover sub 4 is the conically-tapered threaded head 4-4 for being fixedly connected with described die nipple 5, the diameter of described conically-tapered threaded head 4-4 root is less than the diameter of described adapter body 4-1, annular shoulder 4-5 is formed between described conically-tapered threaded head 4-4 and described adapter body 4-1.
Present embodiment due to the middle part that have employed described crossover sub be adapter body, the shape of described adapter body is cylinder or prism, the top of described crossover sub is the conically-tapered threaded head for being fixedly connected with described tool joint, the diameter of described conically-tapered threaded head root is less than the diameter of described adapter body, annular shoulder is formed between described conically-tapered threaded head and described adapter body, the bottom of described crossover sub is the conically-tapered threaded head for being fixedly connected with described die nipple, the diameter of described conically-tapered threaded head root is less than the diameter of described adapter body, the technological means of annular shoulder is formed between described conically-tapered threaded head and described adapter body, so, be conducive to production and processing, install firmly.
The 5th step as present embodiment is improved, as shown in Figure 5, described die nipple 5 comprises die nipple connector portions 5-1, die nipple connecting portion 5-2, die nipple main part 5-3 from top to bottom successively, and described die nipple connector portions 5-1, die nipple connecting portion 5-2, die nipple main part 5-3 are integral pieces or are connected as a single entity.
Present embodiment comprises die nipple connector portions, die nipple connecting portion, die nipple main part from top to bottom successively owing to have employed described die nipple, the technological means that described die nipple connector portions, die nipple connecting portion, die nipple main part are integral piece or are connected as a single entity, so, different cover milling fishing tools can be produced according to actual conditions.
The 6th step as present embodiment is improved, as shown in Figure 5, the shape of described die nipple connector portions 5-1 is cylinder, the shape of described die nipple connecting portion 5-2 is cylinder, the diameter of described die nipple connecting portion 5-2 is less than the diameter of described die nipple connector portions 5-1, lower butt male cone (strobilus masculinus) shoulder 5-4 is formed between described die nipple connecting portion 5-2 and described die nipple connector portions 5-1, the upper surface central authorities of described die nipple connector portions 5-1 are provided with the conical screw hole 5-11 for connecting described crossover sub 4, lower butt inner conical surface shoulder 5-6 is formed between described conical screw hole 5-11 and described hydrophthalmia 5-7.
Present embodiment due to the shape that have employed described die nipple connector portions be cylinder, the shape of described die nipple connecting portion is cylinder, the diameter of described die nipple connecting portion is less than the diameter of described die nipple connector portions, lower butt male cone (strobilus masculinus) shoulder is formed between described die nipple connecting portion and described die nipple connector portions, the upper surface central authorities of described die nipple connector portions are provided with the conical screw hole for connecting described crossover sub, the technological means of lower butt inner conical surface shoulder is formed between described conical screw hole and described hydrophthalmia, so, the Structure & Intensity of die nipple can be made all to be optimized, also be conducive to producing and processing.
The 7th step as present embodiment is improved, and as shown in Figure 5, the shape of described die nipple main part 5-3 is lower cone, and the side of described die nipple main part 5-3 is provided with for the screw thread to fish thread making spinner.
Present embodiment due to the shape that have employed described die nipple main part be lower cone, the side of described die nipple main part is provided with the technological means for the screw thread to fish thread making spinner, so to be conducive between fish firm is connected.
The 8th step as present embodiment is improved, as shown in Figure 6, described for comprising upper flank 5-9 and lower flank 5-10 to the screw thread of fish thread making spinner, described upper flank 5-9 is perpendicular to described lower flank 5-10, and the width of described upper flank 5-9 is less than the width of described lower flank 5-10.
Present embodiment is described for comprising upper flank and lower flank to the screw thread of fish thread making spinner owing to have employed, described upper flank is perpendicular to described lower flank, the width of described upper flank is less than the technological means of the width of described lower flank, so, not only be conducive to improving the connection fastness to fish, and be conducive to the intensity improving screw thread.
The 8th step as present embodiment is improved, and as shown in Figure 5, the bottom of described die nipple main part 5-3 is at least provided with a profile groove 5-8 in the axial direction.Preferred as one, the length of described profile groove 5-8 is 2/1 to three/3rds of cone main part 5-3 length.As further preferred, the length of described profile groove 5-8 is 1/2nd of cone main part 5-3 length.
Present embodiment is at least provided with the technological means of a profile groove in the axial direction due to the bottom that have employed described die nipple main part, so, be conducive to carrying out thread making to the interface of fish.
Claims (10)
1. a cover milling fishing tool, comprise be fixedly connected sequentially from top to bottom tool joint (1), milling pipe (2), milling shoe (3), it is characterized in that: in described milling pipe (2), be provided with the die nipple (5) for salvaging fish.
2. cover milling fishing tool according to claim 1, is characterized in that: described die nipple (5) is fixedly connected with described tool joint (1) by crossover sub (4).
3. cover milling fishing tool according to claim 2, it is characterized in that: described tool joint (1) is provided with hydrophthalmia (1-1) along axis, described crossover sub (4) is provided with hydrophthalmia (4-6) along axis, described die nipple (5) is provided with hydrophthalmia (5-7) along axis, and the hydrophthalmia (5-7) of the hydrophthalmia (1-1) of described tool joint (1), the hydrophthalmia (4-6) of described crossover sub (4), described die nipple (5) is communicated with successively.
4. cover milling fishing tool according to claim 3, it is characterized in that: the shape of described tool joint (1) is cylinder, the upper diameter of described tool joint (1) is less than the lower diameter of this tool joint (1), butt male cone (strobilus masculinus) shoulder (1-2) is formed between the top of described tool joint (1) and the bottom of this tool joint (1), the outer surface of upper of described tool joint (1) is circumferentially adjusted and is provided with annular groove (1-3), the upper surface central authorities of described tool joint (1) are provided with the conical screw hole (1-4) for being fixedly connected with drilling rod, lower butt inner conical surface shoulder (1-5) is formed between described conical screw hole (1-4) and described hydrophthalmia (1-1), the lower surface central authorities of described tool joint (1) are provided with the conical screw hole (1-8) for being fixedly connected with described crossover sub (4), butt inner conical surface shoulder (1-7) is formed between described conical screw hole (1-8) and described hydrophthalmia (1-1), the lower end outside face of described tool joint (1) is provided with the thread head (1-6) of screw thread formation for being fixedly connected with described milling pipe (2).
5. cover milling fishing tool according to claim 3, it is characterized in that: the middle part of described crossover sub (4) is adapter body (4-1), the shape of described adapter body (4-1) is cylinder or prism, the top of described crossover sub (4) is the conically-tapered threaded head (4-2) for being fixedly connected with described tool joint (1), the diameter of described conically-tapered threaded head (4-2) root is less than the diameter of described adapter body (4-1), annular shoulder (4-3) is formed between described conically-tapered threaded head (4-2) and described adapter body (4-1), the bottom of described crossover sub (4) is the conically-tapered threaded head (4-4) for being fixedly connected with described die nipple (5), the diameter of described conically-tapered threaded head (4-4) root is less than the diameter of described adapter body (4-1), annular shoulder (4-5) is formed between described conically-tapered threaded head (4-4) and described adapter body (4-1).
6. cover milling fishing tool according to claim 3, it is characterized in that: described die nipple (5) comprises die nipple connector portions (5-1), die nipple connecting portion (5-2), die nipple main part (5-3) from top to bottom successively, described die nipple connector portions (5-1), die nipple connecting portion (5-2), die nipple main part (5-3) are integral pieces or are connected as a single entity.
7. cover milling fishing tool according to claim 6, it is characterized in that: the shape of described die nipple connector portions (5-1) is cylinder, the shape of described die nipple connecting portion (5-2) is cylinder, the diameter of described die nipple connecting portion (5-2) is less than the diameter of described die nipple connector portions (5-1), lower butt male cone (strobilus masculinus) shoulder (5-4) is formed between described die nipple connecting portion (5-2) and described die nipple connector portions (5-1), the upper surface central authorities of described die nipple connector portions (5-1) are provided with the conical screw hole (5-11) for connecting described crossover sub (4), lower butt inner conical surface shoulder (5-6) is formed between described conical screw hole (5-11) and described hydrophthalmia (5-7).
8. cover milling fishing tool according to claim 6, is characterized in that: the shape of described die nipple main part (5-3) is lower cone, and the side of described die nipple main part (5-3) is provided with for the screw thread to fish thread making spinner.
9. cover milling fishing tool according to claim 8, it is characterized in that: described for comprising upper flank (5-9) and lower flank (5-10) to the screw thread of fish thread making spinner, described upper flank (5-9) is perpendicular to described lower flank (5-10), and the width of described upper flank (5-9) is less than the width of described lower flank (5-10).
10. cover milling fishing tool according to claim 8, is characterized in that: the bottom of described die nipple main part (5-3) is at least provided with a profile groove (5-8) in the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520985224.2U CN205189803U (en) | 2015-12-02 | 2015-12-02 | Wash -over fishing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520985224.2U CN205189803U (en) | 2015-12-02 | 2015-12-02 | Wash -over fishing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205189803U true CN205189803U (en) | 2016-04-27 |
Family
ID=55782803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520985224.2U Expired - Fee Related CN205189803U (en) | 2015-12-02 | 2015-12-02 | Wash -over fishing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205189803U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869848A (en) * | 2017-02-21 | 2017-06-20 | 中国石油集团渤海钻探工程有限公司 | Reaming fishing integrated tool and its fishing method |
-
2015
- 2015-12-02 CN CN201520985224.2U patent/CN205189803U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869848A (en) * | 2017-02-21 | 2017-06-20 | 中国石油集团渤海钻探工程有限公司 | Reaming fishing integrated tool and its fishing method |
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