CN109306853A - A kind of fishing device with bridging plug milling function - Google Patents
A kind of fishing device with bridging plug milling function Download PDFInfo
- Publication number
- CN109306853A CN109306853A CN201811124170.5A CN201811124170A CN109306853A CN 109306853 A CN109306853 A CN 109306853A CN 201811124170 A CN201811124170 A CN 201811124170A CN 109306853 A CN109306853 A CN 109306853A
- Authority
- CN
- China
- Prior art keywords
- cutting face
- fishing
- junk mill
- ontology
- bridging plug
- 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.)
- Granted
Links
- 238000003801 milling Methods 0.000 title claims abstract description 31
- 238000005520 cutting process Methods 0.000 claims abstract description 141
- 239000012224 working solution Substances 0.000 claims abstract description 15
- 238000001914 filtration Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims description 2
- 241001074085 Scophthalmus aquosus Species 0.000 abstract description 9
- 238000005553 drilling Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- BVPWJMCABCPUQY-UHFFFAOYSA-N 4-amino-5-chloro-2-methoxy-N-[1-(phenylmethyl)-4-piperidinyl]benzamide Chemical compound COC1=CC(N)=C(Cl)C=C1C(=O)NC1CCN(CC=2C=CC=CC=2)CC1 BVPWJMCABCPUQY-UHFFFAOYSA-N 0.000 description 1
- 241000283986 Lepus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000009466 transformation Effects 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
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/12—Grappling tools, e.g. tongs or grabs
- E21B31/16—Grappling tools, e.g. tongs or grabs combined with cutting or destroying means
-
- 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
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/12—Grappling tools, e.g. tongs or grabs
- E21B31/18—Grappling tools, e.g. tongs or grabs gripping externally, e.g. overshot
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Marine Sciences & Fisheries (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a kind of fishing devices with bridging plug milling function, including connector body, junk mill ontology and fishing socket；The fishing socket setting connects ontology bottom out of fishing socket and extends above fishing socket in connection ontology periphery；The junk mill body bottom portion is provided centrally with annular cutting face；Annular cutting face circumferentially-spaced is provided with multiple fan-shaped cutting faces；It is external that junk mill sheet is extended in the sector cutting face, so as to form a drainage groove between two neighboring sector cutting face；Junk mill body bottom portion between two neighboring sector cutting face is provided with the drain inclined hole being connected to working solution channel；Several cutting edges made of high-density cemented carbide are provided on the annular cutting face, fan-shaped cutting face.Fishing device described in this programme integrates milling and salvages function, reduces trip-out during drilling well and well workover and lower brill number and tool changing number, simplifies operation sequence, improve work efficiency.
Description
Technical field
The present invention relates to industrial gas oil underground construction technical fields, have the function of bridging plug milling more particularly to one kind
Fishing device.
Background technique
In continuous oil pipe operation, many junks can be generated in underground during drilling well, brill plug, well workover etc., such as grind brill
Head, jack rabbit, gear wheel, slips pressure, packer, bridge plug fragment, tool joint, deep well pump accessory and other longer drilling tools etc.
Junk.
And in current existing brill, well workover fishing junk technology, it is that milling first is carried out to junk in well with junk mill, then again
The clast after milling is salvaged with other salvaging modes, which adds pull out of hole and lower brill number, tool changing
The complication of number and operation sequence is highly detrimental to the raising of drilling efficiency.
Summary of the invention
It is an object of the invention to: a kind of fishing device with bridging plug milling function is provided, not only have bridge plug and
Trouble of lost tool in hole milling function also has the function of to salvage, and for reducing trip-out and lower brill number during drilling well and well workover, and subtracts
Lack tool changing number and simplify procedures, to improve working efficiency.
The technical solution adopted by the invention is as follows:
A kind of fishing device with bridging plug milling function, including connector body and junk mill ontology, the junk mill ontology
Integrated setting is in connector body bottom；It is provided with that extend to the intrinsic working solution of junk mill logical in the connector body
Road；It further include being fixed at the fishing socket of connection ontology periphery, and connect ontology bottom out of fishing socket and extend fishing socket
Top；The junk mill body bottom portion is provided centrally with annular cutting face；Annular cutting face circumferentially-spaced is provided with multiple fans
Shape cutting face；It is external that junk mill sheet is extended in the sector cutting face, so as to form a row between two neighboring sector cutting face
Liquid groove；Junk mill body bottom portion between two neighboring sector cutting face is provided with the drain inclined hole being connected to working solution channel；
Several cutting edges made of high-density cemented carbide are provided on the annular cutting face, fan-shaped cutting face.
Further, it is arranged at intervals with filtering window on the side wall of the fishing socket bottom end, is provided on the filtering window multiple
Filter hole, to mask work liquid and junk.
Further, it is provided with diversion trench corresponding with the drainage groove position on the salvaging drum outer wall, so as to
In entering in fishing socket with working solution from the junk to come up in drainage groove.
Further, the fan-shaped cutting face is made of auxiliary cutting face and main cutting face, and main cutting face is located at annular cutting
Between face and auxiliary cutting face, and the height in auxiliary cutting face is low compared with main cutting face.
Further, the difference in height in the main cutting face and auxiliary cutting face is 1~5 millimeter, to guarantee on auxiliary cutting face
Extend main cutting face at the top of cutting edge, for the relatively large fragment of assisted comminution tearing, while for during limiting milling
The penetraction depth of cutting edge.
Further, the connector body from top to bottom successively by integration connection internal screw thread connecting pin, cylinder and
Transitioning end composition, the fishing socket bottom are fixed at the top of transitioning end.
Further, the cutting edge is triangular pyramids structure, and cutting edge meets the angle of adjacent two seamed edge at material end and is
90°.The cutting edge of the angle is easier to tear bridge plug.If angle is excessive, cutting edge is difficult to efficiently tear bridge plug, causes to grind
Efficiency when milling to every level-one bridge plug packing element position reduces, and can frequently occur bit bouncing phenomenon；If angle too small, cutting edge
Impact resistance reduce, lead to reduced service life.
Further, the cutting edge is mainly made of tungsten carbide material.
Fishing device described in this programme, its working principle is that: when boring plug or milling trouble of lost tool in hole, annular cutting face,
Cutting edge on main cutting face and auxiliary cutting face cooperates, and bridge plug or trouble of lost tool in hole tearing can be broken for small blocky and powder
Last shape；The cutting edge on auxiliary cutting face can limit cutting edge penetraction depth during milling simultaneously, and in annular cutting face and
After cutting edge abrasion on main cutting face, it is further ensured that cutting function is complete；The junk mill ontology of fishing device is by bridge plug or well
The junk that bottom is not easy to salvage is ground, and the junk after grinding is acted on through working solution from drainage groove punching to above fishing socket, at this point,
It backflows on working solution increase, flow velocity is strongly reduced and sunk down into fishing socket, therefore junk is constantly being deposited in gravity
In fishing socket, realizes milling and salvage in the purpose of one.Therefore, fishing device described in this programme solves the prior art
Trip-out and lower brill often, the technical issues of increasing the number of tool changing and complicate operation sequence, improve
Drilling well working efficiency.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
1. fishing device described in this programme, integrate milling and salvage function, during reducing drilling well and well workover
Trip-out and lower brill number and tool changing number, simplify operation sequence, improve work efficiency.
2. fishing device described in this programme, the cutting edge on annular cutting face, main cutting face and auxiliary cutting face is mutual
Bridge plug or the tearing of other junks, can be broken for small blocky and powdered by cooperation, and work efficiency is high；Cutting on auxiliary cutting face simultaneously
Cutting edge penetraction depth during milling can be limited by cutting sword, and the cutting edge abrasion on annular cutting face and main cutting face
Afterwards, it is further ensured that cutting function is complete.
3. fishing device described in this programme, when work, due to the linear velocity highest of the circular motion on auxiliary cutting face, and
Set lower than main cutting face for the height in auxiliary cutting face, it is ensured that cutting edge on auxiliary cutting face will not by annular cutting face and
The bulk junk that main cutting face upper cutting edge is ground further is ground, and is guaranteed junk milling and is salvaged thoroughly, effectively prevent because falling
Object cleaning, which is not thorough, causes drilling well bit freezing serious accident to occur.
4. fishing device described in this programme, the cutting edge is set as the angle of trigonal pyramidal structure and adjacent two seamed edge
It is 90 °, compares serrated chip sword or other polyhedron cutting edges, the tearing of bridge plug is imitated using the cutting edge of structure design
Fruit is good, and it is more efficient to bore plug, efficiently solve existing junk mill be easy broken teeth, bore plug working efficiency be low, service life is short and
Piece of debris residual is excessive when boring plug, is easy to appear bit bouncing phenomenon.
5. fishing device described in this programme, structure is simple, is easily worked by numerically controlled lathe, can be widely used for junk mill work
The transformation of tool, easy to spread and use.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of fishing device of the present invention；
Fig. 2 is a kind of structural schematic diagram of embodiment of fishing socket of the present invention；
Fig. 3 is the cross-sectional view of connector body of the present invention and junk mill ontology；
Fig. 4 is the structural schematic diagram of junk mill ontology of the present invention；
Fig. 5 is the structural schematic diagram of cutting edge of the present invention；
Fig. 6 is the structural schematic diagram of the another embodiment of fishing socket of the present invention.
In the figure, it is marked as 1- connector body, 2- junk mill ontology, 3- fishing socket, 11- internal screw thread connecting pin, 12- cylinder,
13- transitioning end, 14- working solution channel, 15- threaded connection hole, 21- annular cutting face, 22- sector cutting face, 23- drain are oblique
Hole, 24- drainage groove, 25- cutting edge, the main cutting face 221-, the auxiliary cutting face 222-, 31- filtering window, 32- filter hole, 33- are led
Chute.
Specific embodiment
All features disclosed in this specification can be with any other than mutually exclusive feature and/or step
Mode combines.
It elaborates with reference to the accompanying drawing to the present invention.
Embodiment 1
It please refers to shown in Fig. 1~5, a kind of fishing device with bridging plug milling function, including connector body 1, junk mill
Ontology 2 and fishing socket 3.The connector body 1 is from top to bottom successively by internal screw thread connecting pin 11, cylinder 12 and 13 groups of transitioning end
At；2 integrated setting of junk mill ontology is in 13 bottom of transitioning end.The fishing socket 3 is set in connector body 1.
The internal screw thread connecting pin 11, cylinder 12 and the setting of 13 integrated molding of transitioning end.The internal screw thread connecting pin 11
Top is provided with the threaded connection hole 15 to extend internally；The diameter of the threaded connection hole 15 gradually becomes smaller from top to bottom.It is described
Cylinder 12 is internally provided with working solution channel 14；Described 14 one end of working solution channel is connected to threaded connection hole 15, the other end according to
It is secondary to run through cylinder 12 and transitioning end 13 and extend in junk mill ontology 2.
13 top of transitioning end, the column can be arranged in the bottom of the fishing socket 3 in such a way that welding or bolt are fixed
Extend above fishing socket 3 bottom out of fishing socket 3 of body 12.
The diameter of the fishing socket 3 is not more than the diameter of junk mill ontology 2, to salvage the junk that junk mill ontology 2 is ground.
It is arranged at intervals with filtering window 31 on the 3 bottom end side wall of fishing socket, is provided with multiple filterings on the filtering window 31
Hole 32, to mask work liquid and junk.
2 bottom centre of junk mill ontology is provided with annular cutting face 21, annular 21 circumferentially-spaced of the cutting face setting
There are multiple fan-shaped cutting faces 22.The sector cutting face 22 is extended outside junk mill ontology 2, so that two neighboring sector cutting face 22
Between formed a drainage groove 24.
The annular cutting face 21, the connection integrated with 2 bottom of junk mill ontology of fan-shaped cutting face 22.Two neighboring sector
2 bottom of junk mill ontology between cutting face 22 is provided with drain inclined hole 23, the drain inclined hole 23 and the working solution channel 14
Connection.
The diameter of the drain inclined hole 23 is 14~16 millimeters.
The sector cutting face 22 is made of main cutting face 221 and auxiliary cutting face 222, and the main cutting face 221 is located at ring
Between shape cutting face 21 and auxiliary cutting face 222.The height in the auxiliary cutting face 222 is low compared with main cutting face 221, and main cutting face
221 and auxiliary cutting face 222 difference in height be 1~5 millimeter.
It is provided with and several is closed by high-density hard on the annular cutting face 21, main cutting face 221 and auxiliary cutting face 222
Cutting edge 25 made of gold.The cutting edge 25 is triangular pyramids structure, and cutting edge 25 meets adjacent two seamed edge at material end
Angle is 90 °.The cutting edge 25 of the structure is easier to tear bridge plug, because if angle is excessive, then cutting edge 25 is difficult to efficiently
Bridge plug is torn, causes efficiency when milling to every level-one bridge plug packing element position to reduce, and bit bouncing phenomenon can be frequently occurred；If angle
Spend it is small, then cutting edge 25 impact resistance reduce, lead to reduced service life.
The cutting edge 25 is mainly made of tungsten carbide material.
The cutting edge 25 is fixed on annular cutting face 21, main cutting face 221 and auxiliary cutting face 222 by welding
On.
Embodiment 2
It please refers to shown in Fig. 6, is provided on 3 outer wall of fishing socket and the 24 position phase of drainage groove on junk mill ontology 2
Corresponding diversion trench 33, in order to enter in fishing socket 3 with working solution from the junk to come up in drainage groove 24.
Fishing device described in this programme, its working principle is that: when boring plug or milling trouble of lost tool in hole, annular cutting face
21, the cutting edge 25 on main cutting face 221 and auxiliary cutting face 222 cooperates, and can tear bridge plug or trouble of lost tool in hole broken
It is small blocky and powdered；The cutting edge 25 on auxiliary cutting face 222 can limit 25 penetraction depth of cutting edge during milling simultaneously,
And after the cutting edge 25 on annular cutting face 21 and main cutting face 221 is worn, it is further ensured that cutting function is complete；It salvages
The junk mill ontology 2 of device grinds the junk that bridge plug or shaft bottom are not easy to salvage, and the junk after grinding is acted on through working solution from drain
The punching of groove 24 is certainly to 3 top of fishing socket, at this point, increase of backflowing on working solution, flow velocity strongly reduce and sink down into fishing socket 3
It is interior, therefore junk is deposited in fishing socket 3 in gravity constantly, is realized milling and is salvaged in the purpose of one.Therefore, originally
Fishing device described in scheme solves prior art trip-out and lower brill often, increases the number of tool changing and makes
The technical issues of operation sequence complicates, improves drilling well working efficiency.
The above are the main feature of this programme and its advantages, It should be understood by those skilled in the art that this programme is not
It is restricted to the described embodiments, the above embodiments and description only describe the principles of this programme, are not departing from this
Under the premise of scheme spirit and scope, this programme be will also have various changes and improvements, these changes and improvements both fall within requirement and protect
In the scope of the invention of shield, this programme is claimed range and is defined by the appending claims and its equivalent thereof.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to dismantling connection, or one
Ground connection；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediate media's brief introduction phase can also be passed through
Even, it can be the connection inside two elements.For the ordinary skill in the art, can understand as the case may be
The concrete meaning of above-mentioned term in the present invention.
Claims (8)
1. a kind of fishing device with bridging plug milling function, including connector body (1) and junk mill ontology (2), the junk mill
Ontology (2) integrated setting is in connector body (1) bottom；It is provided in the connector body (1) and extends to junk mill ontology
(2) the working solution channel (14) in, it is characterised in that: further include being fixed at the fishing socket (3) of connection ontology periphery, and connect
Ontology is connect to extend above fishing socket (3) from fishing socket (3) interior bottom；Junk mill ontology (2) bottom centre is provided with annular
Cutting face (21)；Described annular cutting face (21) circumferentially-spaced is provided with multiple fan-shaped cutting faces (22)；The sector cutting face
(22) extend junk mill ontology (2) outside, so as to form a drainage groove (24) between two neighboring sector cutting face (22)；Phase
Junk mill ontology (2) bottom between adjacent two fan-shaped cutting faces (22) is provided with the drain inclined hole being connected to working solution channel (14)
(23)；It is provided with and several is cut made of high-density cemented carbide on the annular cutting face (21), fan-shaped cutting face (22)
Cut sword (25).
2. a kind of fishing device with bridging plug milling function according to claim 1, it is characterised in that: the fishing socket
(3) it is arranged at intervals on the side wall of bottom end filtering window (31), is provided with multiple filter hole (32) on the filtering window (31).
3. a kind of fishing device with bridging plug milling function according to claim 1, it is characterised in that: the fishing socket
(3) diversion trench (33) corresponding with the drainage groove (24) position is provided on outer wall.
4. a kind of fishing device with bridging plug milling function according to claim 1, it is characterised in that: the sector is cut
Bevel (22) is made of auxiliary cutting face (222) and main cutting face (221), main cutting face (221) be located at annular cutting face (21) and
Between auxiliary cutting face (222), and the height of auxiliary cutting face (222) is low compared with main cutting face (221).
5. a kind of fishing device with bridging plug milling function according to claim 4, it is characterised in that: the main cutting
The difference in height of face (221) and auxiliary cutting face (222) is 1~5 millimeter.
6. a kind of fishing device with bridging plug milling function according to claim 1, it is characterised in that: the connector
Ontology (1) is successively made of internal screw thread connecting pin (11), cylinder (12) and the transitioning end (13) of integration connection from top to bottom, institute
Fishing socket (3) bottom is stated to be fixed at the top of transitioning end (13).
7. a kind of fishing device with bridging plug milling function according to claim 1, it is characterised in that: the cutting edge
It (25) is triangular pyramids structure, and it is 90 ° that cutting edge (25), which meets the angle of adjacent two seamed edge at material end,.
8. a kind of fishing device with bridging plug milling function according to claim 1, it is characterised in that: the cutting edge
(25) it is mainly made of tungsten carbide material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811124170.5A CN109306853B (en) | 2018-09-26 | 2018-09-26 | Fishing device with bridging plug milling function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811124170.5A CN109306853B (en) | 2018-09-26 | 2018-09-26 | Fishing device with bridging plug milling function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109306853A true CN109306853A (en) | 2019-02-05 |
| CN109306853B CN109306853B (en) | 2021-04-27 |
Family
ID=65223976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811124170.5A Active CN109306853B (en) | 2018-09-26 | 2018-09-26 | Fishing device with bridging plug milling function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109306853B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113309480A (en) * | 2021-07-29 | 2021-08-27 | 中国石油集团川庆钻探工程有限公司 | Anti-sticking milling shoe and drilling, grinding and milling tool for coiled tubing |
| CN116717206A (en) * | 2023-05-30 | 2023-09-08 | 西南石油大学 | Integrated cement sheath crushing and recycling tool and method |
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| CN200949435Y (en) * | 2006-09-13 | 2007-09-19 | 辽河石油勘探局 | Salvaging cup type grind shoe |
| CN101166885A (en) * | 2005-04-28 | 2008-04-23 | 爱尔文工业工具公司 | A drilling tool |
| CN201386523Y (en) * | 2009-04-14 | 2010-01-20 | 中国石化集团胜利石油管理局钻井工艺研究院 | Efficient drilling, grinding and milling integrated tool for well completion of horizontal well |
| WO2012047406A1 (en) * | 2010-09-28 | 2012-04-12 | Baker Hughes Incorporated | Subterranean cutting tool structure tailored to intended use |
| CN203742511U (en) * | 2014-03-11 | 2014-07-30 | 辽河石油勘探局 | Split type fishing cup |
| CN203856439U (en) * | 2014-04-04 | 2014-10-01 | 胜利油田东胜精攻石油开发集团股份有限公司 | Novel milling shoe fishing barrel |
| CN204571895U (en) * | 2014-11-25 | 2015-08-19 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of 6 sword flat-bottom grind shoes |
| CN205503068U (en) * | 2016-01-26 | 2016-08-24 | 杰瑞能源服务有限公司 | Bore and grind well workover with five compound wing junk mills |
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- 2018-09-26 CN CN201811124170.5A patent/CN109306853B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101166885A (en) * | 2005-04-28 | 2008-04-23 | 爱尔文工业工具公司 | A drilling tool |
| CN200949435Y (en) * | 2006-09-13 | 2007-09-19 | 辽河石油勘探局 | Salvaging cup type grind shoe |
| CN201386523Y (en) * | 2009-04-14 | 2010-01-20 | 中国石化集团胜利石油管理局钻井工艺研究院 | Efficient drilling, grinding and milling integrated tool for well completion of horizontal well |
| WO2012047406A1 (en) * | 2010-09-28 | 2012-04-12 | Baker Hughes Incorporated | Subterranean cutting tool structure tailored to intended use |
| CN203742511U (en) * | 2014-03-11 | 2014-07-30 | 辽河石油勘探局 | Split type fishing cup |
| CN203856439U (en) * | 2014-04-04 | 2014-10-01 | 胜利油田东胜精攻石油开发集团股份有限公司 | Novel milling shoe fishing barrel |
| CN204571895U (en) * | 2014-11-25 | 2015-08-19 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of 6 sword flat-bottom grind shoes |
| CN205503068U (en) * | 2016-01-26 | 2016-08-24 | 杰瑞能源服务有限公司 | Bore and grind well workover with five compound wing junk mills |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113309480A (en) * | 2021-07-29 | 2021-08-27 | 中国石油集团川庆钻探工程有限公司 | Anti-sticking milling shoe and drilling, grinding and milling tool for coiled tubing |
| CN116717206A (en) * | 2023-05-30 | 2023-09-08 | 西南石油大学 | Integrated cement sheath crushing and recycling tool and method |
| CN116717206B (en) * | 2023-05-30 | 2024-01-23 | 西南石油大学 | Integrated cement sheath crushing and recycling tool and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109306853B (en) | 2021-04-27 |
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