CN107420059A - Subsea production tree tubing hanger center plug takes out instrument - Google Patents
Subsea production tree tubing hanger center plug takes out instrument Download PDFInfo
- Publication number
- CN107420059A CN107420059A CN201610345855.7A CN201610345855A CN107420059A CN 107420059 A CN107420059 A CN 107420059A CN 201610345855 A CN201610345855 A CN 201610345855A CN 107420059 A CN107420059 A CN 107420059A
- Authority
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- China
- Prior art keywords
- sleeve
- center plug
- mandrel
- ring
- tubing hanger
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 38
- 210000000078 claw Anatomy 0.000 claims abstract description 21
- 230000000694 effects Effects 0.000 claims description 6
- 230000008602 contraction Effects 0.000 claims description 3
- 238000011900 installation process Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The present invention discloses a kind of subsea production tree tubing hanger center plug and takes out instrument, including：Mandrel, its stage casing part are formed down step；Attachment cap, it is fixedly connected on the upper end of mandrel；Upper springs sleeve, the mandrel exterior is set in, is formed a fixed connection through shelves pin and the mandrel；Lower springs sleeve, it is set in the mandrel exterior；Sleeve, for playing protection and position-limiting action to the upper springs sleeve and the lower springs sleeve；First spring, it is sheathed in the inner volume of the upper springs sleeve of the mandrel exterior；Second spring, it is sheathed on the lower springs cartridge exterior；Shelves ring, the outside of the lower springs sleeve is set in, and the upper surface of the shelves ring props up the lower surface of the second spring；Claw, the mandrel exterior is set in, including is set in the card tooth of the sleeve inner, the card tooth is fixedly connected with the baffle ring.
Description
Technical field
The present invention relates to marine petroleum exploitation technical field, more particularly to a kind of subsea production tree center plug takes out work
Tool.
Background technology
Under water during the performance test such as the tubing hanger of production tree, annular space, the effect of tubing hanger center plug is mainly
Tubing hanger center bore ends are blocked and sealed, to realize the performance test of tubing hanger and annular space；Secondly, tubing hanger center
The plug closure in production process to tubing hanger under water, can effectively prevent the oil-air pressure inside tubing string, prevent blowout.
, it is necessary to which tubing hanger center plug is taken out when subsea production tree tubing hanger production maintenance and center plug are cleared up, but at present, still
Center plug without maturation takes out instrument.Therefore those skilled in the art be badly in need of one kind can be by subsea production tree tubing hanger center
The operation instrument of plug timely and effective taking-up from tubing hanger.
The content of the invention
It is an object of the invention to provide a kind of taking-up instrument, it is ensured that can be safely and reliably by subsea production tree tubing hanger
Center plug quickly removes from tubing hanger.For the above-mentioned purpose, the present invention uses following technical scheme：
A kind of subsea production tree tubing hanger center plug takes out instrument, for connecting with subsea production tree tubing hanger center plug
Tubing hanger center plug is taken out after connecing, wherein, the taking-up instrument includes：
Mandrel, as pulling force load bearing component, it is arranged at the axial centre of the taking-up instrument, the stage casing part of the mandrel
It is formed down step；
Attachment cap, it is fixedly connected on the upper end of the mandrel；
Upper springs sleeve, the mandrel exterior is set in, and upper springs sleeve is formed through shelves pin with the mandrel
It is fixedly connected；The lower end of the upper springs sleeve, which is internally formed one, has the cavity volume of stepped ramp type, and the upper springs sleeve
Outside bottom be provided with connection screw thread；
Lower springs sleeve, positioned at the lower section of the upper springs sleeve, it is set in the mandrel exterior, the bottom bullet
The upper end of spring sleeve is provided with the first raised backstop platform of periphery, and the lower end surface of the lower springs sleeve is resisted against the mandrel
The step that is formed down of stage casing part on；
Sleeve, the outside of the upper springs sleeve and the lower springs sleeve is sheathed on, to the upper springs set
Cylinder and the lower springs sleeve play protection and position-limiting action, and the sleeve passes through connection screw thread shape with the upper springs sleeve
Into being fixedly connected；
First spring, it is sheathed in the inner volume of the upper springs sleeve of the mandrel exterior, first bullet
The lower end of spring props up the upper surface of the lower springs sleeve, for preventing between the upper springs sleeve and the sleeve
It is fixedly connected and loosens；
Second spring, the lower springs cartridge exterior is sheathed on, and the upper end of the second spring props up the bottom
The lower eaves face of the first backstop platform of spring spool；
Shelves ring, the outside of the lower springs sleeve is set in, and the upper surface of the shelves ring props up the second spring
Lower surface；
Claw, is set in the mandrel exterior, and the upper end of the claw includes being set in the card tooth of the sleeve inner, institute
Ka Ya is stated to be fixedly connected with the baffle ring.
According to subsea production tree tubing hanger center plug proposed by the present invention take out instrument, wherein, the sleeve positioned at
Some symmetrical handle holes are provided with the internal shelves ring, the shelves ring is grasped by external mechanical devices with facilitating
Make.
Instrument is taken out according to subsea production tree tubing hanger center plug proposed by the present invention, wherein, the outside of the shelves ring
Zigzag anchor ring is formed, in order to which external mechanical devices make the shelves ring axially be lifted.
Instrument is taken out according to subsea production tree tubing hanger center plug proposed by the present invention, wherein, the top of the card tooth
Periphery forms the second backstop platform, and the second backstop platform can only be described to limit the claw for being engaged with the sleeve
Moved axially in sleeve.
Instrument is taken out according to subsea production tree tubing hanger center plug proposed by the present invention, wherein, the lower end of the card tooth
Extension is provided with multiple symmetrical strip fixture blocks, the lower end of the fixture block carry out in the course of the work expansion on axial direction with
Shrink.
Instrument is taken out according to subsea production tree tubing hanger center plug proposed by the present invention, wherein, the lower end of the fixture block
Extend outside and convex to form stop block, so that the center plug takes out the card tooth of instrument and actuating for the center plug
Mutually locked between ring.
Instrument is taken out according to subsea production tree tubing hanger center plug proposed by the present invention, wherein, on the outside of the stop block
Upper lower edge formed the conical surface, the conical surface is adapted to the conical surface actuated on ring of the center plug, to facilitate the center to block up
The relatively described center plug of card tooth of head taking-up instrument actuates being inserted and removed from for ring.
Instrument is taken out according to subsea production tree tubing hanger center plug proposed by the present invention, wherein, when the baffle ring is in
During lifting state and the card tooth on ring with being actuated in the plug installation process of center when shifting ad-hoc location onto, the mandrel
Annular groove is formed at the fixture block positioned at the card tooth, the snap ring is retracted to the annular groove under the effect of being squeezed
In, to facilitate instrument with respect to the connection and taking-up of center plug.
Compared with prior art, the beneficial effects of the present invention are：
The present invention realizes that tubing hanger center plug takes out by the contraction and recovery of center plug taking-up instrument upper clipping claw,
It is simple to operate, securely and reliably.
Brief description of the drawings
Fig. 1 is the structure principle chart of one embodiment of the present of invention.
Fig. 2 is oily for subsea production tree with schematic diagram after operation, wherein Fig. 2 a before the operation of one embodiment of the present of invention
Pipe hanger center plug takes out instrument claw and just contacts state diagram when subsea production tree tubing hanger center plug actuates ring, and Fig. 2 b are
Subsea production tree tubing hanger center plug take out instrument claw completely into the heart plug when state diagram.
Description of reference numerals：200- subsea production tree tubing hangers center plug takes out instrument；201- attachment caps；202- anti-rotations
Pin；203- mandrels；2031- steps；204- upper springs sleeves；205- backing pins；206- outer sleeves；2061- handle holes；
The springs of 207- first；208- lower springs sleeves；2081- the first backstop platforms；209- second springs；210- baffle rings；2101- sawtooth
Shape anchor ring；211- claws；2111- card teeth；2112- the second backstop platforms；2113- fixture blocks；2114- stop blocks；The 2115- conical surfaces；
The 2116- conical surfaces；300- centers plug；303- actuates ring；304- centers plug card tooth；306- upper ends stopper slot.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not paid
Embodiment, belong to the scope of protection of the invention.
Fig. 1 is referred to, subsea production tree tubing hanger center plug of the invention, which takes out instrument 200, mainly includes attachment cap
201, mandrel 203, outer sleeve 206, upper springs sleeve 212, lower springs sleeve 213, baffle ring 210, claw 211.Wherein
Attachment cap 201 is connected through a screw thread with mandrel 203, and centre anti-rotation pin 202 is fixed, and prevents its rotation, upper springs
Sleeve 204 and lower springs sleeve 208 are sequentially sleeved at the outside of mandrel 203 from top to bottom.Wherein upper springs sleeve 204
Lower end, which is internally formed one, has the cavity volume of stepped ramp type, and the first spring 207 is arranged in the cavity volume, and under the first spring 207
End props up the upper surface of lower springs sleeve 208, for preventing the fixation between upper springs sleeve 204 and outer sleeve 206
Connection loosens.The upper end of lower springs sleeve 208 is provided with the first raised backstop platform 2081 of periphery, second spring 209
Upper end props up the lower eaves face of the first backstop platform 2081 of lower springs sleeve 208, is sheathed on the outside of lower springs sleeve 208.
On the step 2031 that the stage casing part that the lower end surface of lower springs sleeve 208 is resisted against mandrel 203 is formed down.
The upper surface of shelves ring 210 props up the lower surface of second spring 209 and is set in the outside of lower springs sleeve 208.
Outer sleeve 206 is provided with some symmetrical handle holes 2061 on the circumferential position of face shelves ring 210, to facilitate by outer
Portion's mechanical device operates to shelves ring 210.Meanwhile the outside of shelves ring 210 forms zigzag anchor ring 2101, in order to outside machine
Compression and operation of the tool device to shelves ring 210, make grade ring 210 be axially lifted up or pressed down in operation.
The claw 211 of the present invention is set in the outside of mandrel 203, and the wherein upper end of claw 211 includes being set in outer cover
Card tooth 2111 inside cylinder 206, is fixedly connected with baffle ring 210.The upper periphery of card tooth 2111 forms the second backstop platform 2112, uses
It can only be moved axially in being engaged with outer sleeve 206 with limiting claw 211 in outer sleeve 206.Card tooth 2111
Lower end also extends provided with multiple symmetrical strip fixture blocks 2113, and its lower end, which extends outside, convexes to form stop block
2114, and the upper lower edge in the outside of stop block 2114 forms the conical surface 2115 and 2116, the above-mentioned conical surface and center plug 300 respectively
The conical surface adaptation on ring 303 is actuated, to facilitate the rush of the relatively described center plug of claw 211 of center plug taking-up instrument 200
Rotating ring 303 is inserted and removed from.
Specific work process is as follows：
Under original state, subsea production tree tubing hanger center plug of the invention takes out instrument 200 in second spring 209
Effect lower claw 211 is located at bottom, and center plug locks in tubing hanger body interior (ginseng block diagram 1) certainly.When needing from oil
During pipe hanger internal extraction center plug, the shelves of subsea production tree tubing hanger center plug taking-up instrument are made by external mechanical influence
Ring is lifted up, and then will be taken out instrument and be docked with center plug, in docking operation, the stop block of claw lower end is by center
Plug is extruded, and stop block retracted in the annular groove of mandrel lower end, when stop block is completely into center plug after actuating ring,
Loosen the shelves ring of taking-up instrument, claw is moved downward by the effect of second spring power, stop block footpath in the presence of structure extruding force
To opening, plug taking-up instrument in tubing hanger center docks completion with center plug；Secondly, operation is above proposed to the present invention,
Now the stop block 2114 of lower end is stuck in subsea production tree center plug and actuated in the inner groove of ring 303.Continue above to carry behaviour
Make, the instrument that takes out drives center plug 303 up along upper end stopper slot 306, and now center plug card tooth 304 actuates ring losing
During 303 supporting role, the constraint release of center plug and outer body, so as to realize that center plug 300 unlocks with tubing hanger,
The center plug inside tubing hanger can be directly taken out by center plug taking-up instrument.
Finally, the shelves ring of taking-up instrument is lifted again, and coordinates manual operation, and center plug can be made to take out instrument and center
Plug is separated.
In summary, the present invention passes through machinery in unblock operation of the instrument of progress with production tree tubing hanger center plug
The i.e. achievable claw 211 of effect lifting baffle ring 210 drives the stop block 2114 of its front end to move on to mandrel 203 along mandrel 203 and bored
The equivalent diameter of stop block 2114 contraction of the position of face top minor diameter, the now lower end of claw 211, continues above to propose operation i.e.
Center plug 300 and the unblock of production tree tubing hanger can be achieved, at the same by lifting baffle ring, and coordinate manual operation, you can make
Instrument separates with center plug, taking-up operating process simple and fast of the present invention on center plug, substantially increases taking-up and makees
The efficiency of industry.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in previous embodiment, or equivalent substitution is carried out to which part technical characteristic；And
These modifications are replaced, and the essence of appropriate technical solution is departed from the spirit and model of technical scheme of the embodiment of the present invention
Enclose.
Claims (8)
1. a kind of subsea production tree tubing hanger center plug takes out instrument, for being connected with subsea production tree tubing hanger center plug
Tubing hanger center plug is taken out afterwards, wherein, the taking-up instrument includes：
Mandrel, as pulling force load bearing component, the axial centre of the taking-up instrument is arranged at, the stage casing part of the mandrel is downward
Form step；
Attachment cap, it is fixedly connected on the upper end of the mandrel；
Upper springs sleeve, the mandrel exterior is set in, and upper springs sleeve forms fixation through shelves pin with the mandrel
Connection；The lower end of the upper springs sleeve, which is internally formed one, has the cavity volume of stepped ramp type, and the upper springs sleeve is outer
Side bottom is provided with connection screw thread；
Lower springs sleeve, positioned at the lower section of the upper springs sleeve, it is set in the mandrel exterior, the lower springs set
The upper end of cylinder is provided with the first raised backstop platform of periphery, and the lower end surface of the lower springs sleeve is resisted against in the mandrel
On the step that section part is formed down；
Sleeve, be sheathed on the outside of the upper springs sleeve and the lower springs sleeve, to the upper springs sleeve and
The lower springs sleeve plays protection and position-limiting action, and the sleeve is formed solid with the upper springs sleeve by connection screw thread
Fixed connection；
First spring, it is sheathed in the inner volume of the upper springs sleeve of the mandrel exterior, first spring
Lower end props up the upper surface of the lower springs sleeve, for preventing the fixation between the upper springs sleeve and the sleeve
Connection loosens；
Second spring, the lower springs cartridge exterior is sheathed on, and the upper end of the second spring props up the lower springs
The lower eaves face of the first backstop platform of sleeve；
Shelves ring, the outside of the lower springs sleeve is set in, and the upper surface of the shelves ring is propped up under the second spring
End face；
Claw, is set in the mandrel exterior, and the upper end of the claw includes being set in the card tooth of the sleeve inner, the card
Tooth is fixedly connected with the baffle ring.
2. subsea production tree tubing hanger center plug according to claim 1 takes out instrument, it is characterised in that the sleeve
Some symmetrical handle holes are being provided with the internal shelves ring, to facilitate by external mechanical devices to the shelves ring
Operated.
3. subsea production tree tubing hanger center plug according to claim 1 takes out instrument, it is characterised in that the shelves ring
It is outside form zigzag anchor ring, in order to which external mechanical devices make the shelves ring axially be lifted.
4. subsea production tree tubing hanger center plug according to claim 1 takes out instrument, it is characterised in that the card tooth
Upper periphery form the second backstop platform, the second backstop platform be used for and the sleeve be engaged can only to limit the claw
Moved axially in the sleeve.
5. subsea production tree tubing hanger center plug according to claim 1 takes out instrument, it is characterised in that the card tooth
Lower end extension be provided with multiple symmetrical strip fixture blocks, the lower end of the fixture block is carried out on axial direction in the course of the work
Expansion and contraction.
6. subsea production tree tubing hanger center plug according to claim 5 takes out instrument, it is characterised in that the fixture block
Lower end extend outside and convex to form stop block so that the center plug takes out the card tooth of instrument and the center plug
Actuate and mutually lock between ring.
7. subsea production tree tubing hanger center plug according to claim 6 takes out instrument, it is characterised in that the backstop
Upper lower edge on the outside of block forms the conical surface, and the conical surface is adapted to the conical surface actuated on ring of the center plug, described to facilitate
The relatively described center plug of card tooth of center plug taking-up instrument actuates being inserted and removed from for ring.
8. subsea production tree tubing hanger center plug according to claim 1 takes out instrument, it is characterised in that when the gear
When ring is in lifting state and the card tooth on ring with being actuated in the plug installation process of center when shifting ad-hoc location onto, institute
State mandrel and annular groove is formed at the fixture block positioned at the card tooth, the snap ring is retracted to the annular under the effect of being squeezed
In groove, to facilitate instrument with respect to the connection and taking-up of center plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610345855.7A CN107420059A (en) | 2016-05-23 | 2016-05-23 | Subsea production tree tubing hanger center plug takes out instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610345855.7A CN107420059A (en) | 2016-05-23 | 2016-05-23 | Subsea production tree tubing hanger center plug takes out instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107420059A true CN107420059A (en) | 2017-12-01 |
Family
ID=60422325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610345855.7A Pending CN107420059A (en) | 2016-05-23 | 2016-05-23 | Subsea production tree tubing hanger center plug takes out instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107420059A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412372A (en) * | 2020-12-11 | 2021-02-26 | 重庆前卫科技集团有限公司 | Recovery tool is sent into to production tree abrasionproof cover under water |
| CN113650257A (en) * | 2021-08-09 | 2021-11-16 | 赣州能之光新材料有限公司 | Novel improvement extruding machine |
| CN115415841A (en) * | 2022-08-12 | 2022-12-02 | 丁茂林 | Combined tool set drilling machine and using method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1391209A (en) * | 1971-07-19 | 1975-04-16 | Dresser Ind Prod Ltd | Apparatus for positioning and retrieving a core barrel |
| CN201236652Y (en) * | 2008-06-06 | 2009-05-13 | 中国海洋石油总公司 | Feeding and extracting tool of guiding device |
| CN201972636U (en) * | 2011-03-09 | 2011-09-14 | 中国石油集团西部钻探工程有限公司 | Bypass valve core removal tool |
| US20110318088A1 (en) * | 2009-03-12 | 2011-12-29 | Tong Oil Tools Co., Ltd. | Cable head for petroleum logging |
| CN202970563U (en) * | 2012-11-07 | 2013-06-05 | 中国石油化工股份有限公司 | Extracting tool special for orientation sub loop sleeve |
| CN204646155U (en) * | 2015-05-05 | 2015-09-16 | 中国石油大学(华东) | A kind of boll-weevil hanger transfers instrument locking claw |
| CN105114021A (en) * | 2015-09-17 | 2015-12-02 | 湖南唯科拓石油科技服务有限公司 | Hanging sealer for installing velocity string in oil pipe and feeding and recovering tool of hanging sealer |
| CN205154085U (en) * | 2015-11-18 | 2016-04-13 | 宝鸡石油机械有限责任公司 | Instrument is retrieved to wire rope blanking plug |
-
2016
- 2016-05-23 CN CN201610345855.7A patent/CN107420059A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1391209A (en) * | 1971-07-19 | 1975-04-16 | Dresser Ind Prod Ltd | Apparatus for positioning and retrieving a core barrel |
| CN201236652Y (en) * | 2008-06-06 | 2009-05-13 | 中国海洋石油总公司 | Feeding and extracting tool of guiding device |
| US20110318088A1 (en) * | 2009-03-12 | 2011-12-29 | Tong Oil Tools Co., Ltd. | Cable head for petroleum logging |
| CN201972636U (en) * | 2011-03-09 | 2011-09-14 | 中国石油集团西部钻探工程有限公司 | Bypass valve core removal tool |
| CN202970563U (en) * | 2012-11-07 | 2013-06-05 | 中国石油化工股份有限公司 | Extracting tool special for orientation sub loop sleeve |
| CN204646155U (en) * | 2015-05-05 | 2015-09-16 | 中国石油大学(华东) | A kind of boll-weevil hanger transfers instrument locking claw |
| CN105114021A (en) * | 2015-09-17 | 2015-12-02 | 湖南唯科拓石油科技服务有限公司 | Hanging sealer for installing velocity string in oil pipe and feeding and recovering tool of hanging sealer |
| CN205154085U (en) * | 2015-11-18 | 2016-04-13 | 宝鸡石油机械有限责任公司 | Instrument is retrieved to wire rope blanking plug |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412372A (en) * | 2020-12-11 | 2021-02-26 | 重庆前卫科技集团有限公司 | Recovery tool is sent into to production tree abrasionproof cover under water |
| CN113650257A (en) * | 2021-08-09 | 2021-11-16 | 赣州能之光新材料有限公司 | Novel improvement extruding machine |
| CN115415841A (en) * | 2022-08-12 | 2022-12-02 | 丁茂林 | Combined tool set drilling machine and using method thereof |
| CN115415841B (en) * | 2022-08-12 | 2024-06-07 | 余姚市凯越铝材有限公司 | Combined cutter set drilling machine and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171201 |
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| WD01 | Invention patent application deemed withdrawn after publication |