CN106437589B - A kind of intelligence junk mill - Google Patents
A kind of intelligence junk mill Download PDFInfo
- Publication number
- CN106437589B CN106437589B CN201610959773.1A CN201610959773A CN106437589B CN 106437589 B CN106437589 B CN 106437589B CN 201610959773 A CN201610959773 A CN 201610959773A CN 106437589 B CN106437589 B CN 106437589B
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- China
- Prior art keywords
- valve
- junk mill
- sliding sleeve
- main sliding
- runner
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B29/00—Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
Abstract
The invention discloses a kind of intelligent junk mills, pass through the structure setting to piston rod, main sliding sleeve, adapter, fusing valve, junk mill and control circuit board, conducting wire is connected with junk mill ontology using junk mill head hard alloy layer is completely worn out, the conducting of excitation control circuit plate, control valve core movement, open valve flowing channel, until relief hole is opened, change the pressure in drill string, shaft mouth operation personnel can easily judge whether junk mill reaches service life according to pressure change in drill string, the real-time monitoring for realizing junk mill avoids accidentally mentioning brill.
Description
Technical field
The present invention relates to a kind of intelligent junk mills, belong to workover tool field.
Background technique
Junk mill is common a kind of tool during well workover, and effect is milling trouble of lost tool in hole.Make at present for junk mill
Monitoring method is never had with the service life.It in practical applications, can only be by milling speed to determine whether reaching its service life.Work as mill
When milling speed becomes very slow, that is, thinks that junk mill reaches its service life, need to change junk mill.But when encountering harder junk
When (frequently encounter), the milling speed that will also result in junk mill becomes very slow.At this moment can not just judge to make in shaft mouth operation personnel
The reason of slowing at milling can only be checked by mentioning boring, expend a large amount of manpower and material resources.
For this reason, it may be necessary to a intelligent junk mill be designed, effectively to detect the damaged condition of junk mill.
Summary of the invention
Technology of the invention solves the problems, such as: in order to overcome the deficiencies of the prior art, a kind of intelligent junk mill is provided, with accurate judgement
Whether junk mill reaches its service life, avoids accidentally mentioning brill.
Technical solution of the invention:
A kind of intelligence junk mill, including top oil cylinder, piston rod, main sliding sleeve, adapter, fusing valve, valve end cap, junk mill, electricity
Pond group, control circuit board and contact pin,
Main sliding sleeve one end is connect with top oil cylinder, and the main sliding sleeve other end is connect with junk mill, wherein main sliding sleeve and top oil cylinder
Inside is hollow and communicates to form hollow chamber, and hollow piston rod is placed in the hollow chamber of main sliding sleeve and top oil cylinder junction
In, the inner wall dynamic sealing with main sliding sleeve and top oil cylinder, main sliding sleeve has been arranged radially relief hole, and when original state, piston rod is leaned on
Its sealing function is not communicated with relief hole with hollow chamber,
Main sliding sleeve runner, adapter, fusing valve, the interior valve end equipped with valve end cap runner are provided in the side wall of main sliding sleeve
Lid, battery pack, control circuit board and contact pin,
Chamber locating for main sliding sleeve runner one end and piston rod, the main sliding sleeve runner other end and adapter one end connect
Logical, the adapter other end is communicated with one end of valve end cap runner,
The valve that fuses includes valve body and spool, and spool is placed in valve body, and valve interior wall dynamic sealing, is provided on valve body and valve
The valve flowing channel that the other end of end cap runner communicates and the through-hole communicated with hollow chamber, when spool (13) is located at initial position,
By its sealing function, valve flowing channel (1201) is separated from inside,
Junk mill includes ontology and head hard alloy layer, and contact pin one end is connect with control circuit board, the other end with insulation
The conducting wire connection of layer, the ontology and head hard alloy connecting place of the other end insertion junk mill of conducting wire.
When junk mill head, hard alloy layer, which is abraded away totally to the insulating layer of conducting wire, is worn, and conducting wire is led with junk mill ontology
Logical, after control circuit board detects Continuity signal, valve flowing channel is opened in control valve core movement, in hollow chamber high-pressure medium according to
Secondary to pass through through-hole, valve flowing channel, valve end cap runner, adapter, main sliding sleeve runner, high-pressure medium pushes piston rod to leave initial bit
It sets and moves up, the relief hole on main sliding sleeve is opened, and high-pressure medium is discharged through relief hole in hollow chamber.
The valve that fuses further includes zipper, resistance wire and spring, and spool and valve body are connected by spring pocket on spool, through zipper
And spring is made to be pressurized, resistance wire is wrapped on zipper, and is connected with control circuit board.
When junk mill head, hard alloy layer, which is abraded away totally to the insulating layer of conducting wire, is worn, and conducting wire is led with junk mill ontology
Logical, after control circuit board detects Continuity signal, trigger control circuit powers to resistance wire and generates heat, and fuse zipper, bullet
Spring, which releases, to be pressurized, and valve core movement opens valve flowing channel, and high-pressure medium successively passes through through-hole, valve flowing channel, valve end in hollow chamber
Lid runner, adapter, main sliding sleeve runner, high-pressure medium push piston rod to leave initial position and move up, letting out on main sliding sleeve
Pressure hole is opened, and high-pressure medium is discharged through relief hole in hollow chamber.
The mode for opening fusing valve inner flow passage can also be realized that motor is connect with lead screw, nut by motor, lead screw and nut
It covers on lead screw, nut is connect with spool.
When junk mill head, hard alloy layer, which is abraded away totally to the insulating layer of conducting wire, is worn, and conducting wire is led with junk mill ontology
Logical, after control circuit board detects Continuity signal, trigger control circuit is powered to motor, drives lead screw rotation, and then nut band
Valve flowing channel is opened in movable valve plug movement, and high-pressure medium successively passes through through-hole, valve flowing channel, valve end cap runner, turns in hollow chamber
Connector, main sliding sleeve runner, high-pressure medium push piston rod to leave initial position and move up, and the relief hole on main sliding sleeve is beaten
It opens, high-pressure medium is discharged through relief hole in hollow chamber.
On main sliding sleeve and junk mill ontology, it is provided with the first crossed beam trunking and the second crossed beam trunking, conducting wire is placed in the first crossed beam trunking
In the second crossed beam trunking.
Valve end cap is covered on fusing valve and adapter, and surface and main sliding sleeve outer wall are smooth.
The inner hole communicated with the outside world is provided in junk mill.
Compared with prior art, the present invention has the following advantages:
The present invention passes through the structure setting to piston rod, main sliding sleeve, adapter, fusing valve, junk mill and control circuit board, benefit
Conducting wire is connected with junk mill ontology with junk mill head hard alloy layer is completely worn out, the conducting of excitation control circuit plate, control valve core
Valve flowing channel is opened in movement, until relief hole is opened, changes the pressure in drill string, shaft mouth operation personnel are according to drill string internal pressure
Power variation can easily judge whether junk mill reaches service life, realize the real-time monitoring of junk mill, avoid accidentally mentioning brill.
Detailed description of the invention
Fig. 1 is cross-sectional view of the present invention along fusing valve；
Fig. 2 is cross-sectional view of the present invention along battery pack；
Fig. 3 is crossed beam trunking structural schematic diagram in outer surface of the present invention；
Fig. 4 is the connection schematic diagram of contact pin of the present invention；
Fig. 5 is present invention fusing valve arrangement figure；
Fig. 6 is present invention fusing valve cross-sectional view.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing.
A kind of intelligence junk mill, as shown in Figure 1, Figure 2 and shown in Fig. 4, including top oil cylinder 1, piston rod 2, main sliding sleeve 3, adapter
4, fuse valve 5, valve end cap 6, junk mill 7, battery pack 8, control circuit board 9 and contact pin 11,
Main 3 one end of sliding sleeve is connect with top oil cylinder 1, and main 3 other end of sliding sleeve is connect with junk mill 7, wherein main sliding sleeve 3 and top
Hollow and communicate to form hollow chamber inside oil cylinder 1, hollow piston rod 2 is placed in 1 junction of main sliding sleeve 3 and top oil cylinder
In hollow chamber, inner wall dynamic sealing with main sliding sleeve 3 and top oil cylinder 1, main sliding sleeve 3 has been arranged radially relief hole 302, initial shape
When state, piston rod is not communicated with relief hole with hollow chamber by its sealing function, is adapter inner hole 401 among adapter 4, main
Sliding sleeve runner 301 and valve end cap runner 601 are communicated with 401 both ends of adapter inner hole respectively,
Be provided in the side wall of main sliding sleeve 3 main sliding sleeve runner 301, adapter 4, fusing valve 5, it is interior be equipped with valve end cap runner
601 valve end cap 6, battery pack 8, end cover for battery cells 10, control circuit board 9 and contact pin 11, end cover for battery cells 10 are covered in control circuit
On plate 9 and battery pack 8, surface and main 3 outer wall of sliding sleeve are smooth；
As shown in Figure 1, chamber locating for main 301 one end of sliding sleeve runner and piston rod 2, main sliding sleeve runner 301 are another
End is connected to 4 one end of adapter, and 4 other end of adapter is communicated with one end of valve end cap runner 601.
As shown in figure 3, it is provided with the first crossed beam trunking 303 and the second crossed beam trunking 702 on 7 ontology of main sliding sleeve 3 and junk mill,
Conducting wire is placed in the first crossed beam trunking 303 and the second crossed beam trunking 702.
As shown in Figure 5, Figure 6, fusing valve 5 includes valve body 12 and spool 13, and spool 13 is placed in valve body 12, in valve body 12
Wall dynamic sealing is provided with the valve flowing channel 1201 communicated with the other end of valve end cap runner 601 and and hollow chamber on valve body 12
The through-hole communicated when spool (13) is located at initial position, leans on its sealing function, valve flowing channel (1201) is separated from inside.
Junk mill 7 includes ontology and head hard alloy layer, and 11 one end of contact pin is connect with control circuit board 9, the other end and band
The conducting wire of insulating layer connects, the ontology and head hard alloy connecting place of the other end insertion junk mill of conducting wire, as shown in Figure 4.
The operation principle of the present invention is that: it is ground when 7 head hard alloy layer of junk mill is abraded away totally to the insulating layer of conducting wire
Broken, conducting wire is connected with 7 ontology of junk mill, and after control circuit board 9 detects Continuity signal, control valve core 13 is moved, and opens valve body stream
Road 1201, high-pressure medium successively passes through through-hole, valve flowing channel 1201, valve end cap runner 601, adapter 4, main cunning in hollow chamber
Runner 301 is covered, high-pressure medium pushes piston rod 2 to leave initial position and moves up, and the relief hole 302 on main sliding sleeve 3 is opened,
High-pressure medium is discharged through relief hole 302 in hollow chamber.
Specifically, as shown in figure 5, fusing valve 5 further includes zipper 14, resistance wire 15 and spring 16,16 sets of spring in spool
On 13, spool 13 being connected with valve body 12 by zipper 14 and spring 16 is made to be pressurized, resistance wire 15 is wrapped on zipper 14, and with
Control circuit board 9 is connected.
In such cases, be worn when 7 head hard alloy layer of junk mill is abraded away totally to the insulating layer of conducting wire, conducting wire with
The conducting of 7 ontology of junk mill, after control circuit board 9 detects Continuity signal, trigger control circuit powers to resistance wire 15 and generates heat
Amount, fuse zipper 14, and spring 16, which releases, to be pressurized, and spool 13 moves, and opens valve flowing channel 1201, in hollow chamber high-pressure medium according to
Secondary to pass through through-hole, valve flowing channel 1201, valve end cap runner 601, adapter 4, main sliding sleeve runner 301, high-pressure medium pushes piston
Bar 2 leaves initial position and moves up, and the relief hole 302 on main sliding sleeve 3 is opened, and high-pressure medium is through relief hole in hollow chamber
302 discharges.
The mode for opening fusing valve inner flow passage can also be realized that motor is connect with lead screw, nut by motor, lead screw and nut
It covers on lead screw, nut is connect with spool 13.
In such cases, be worn when 7 head hard alloy layer of junk mill is abraded away totally to the insulating layer of conducting wire, conducting wire with
The conducting of 7 ontology of junk mill, after control circuit board 9 detects Continuity signal, trigger control circuit is powered to motor, drives lead screw rotation
Turn, and then nut band movable valve plug 13 moves, and opens valve flowing channel 1201, high-pressure medium successively passes through through-hole, valve in hollow chamber
Body runner 1201, valve end cap runner 601, adapter 4, main sliding sleeve runner 301, high-pressure medium push piston rod 2 to leave initial bit
It sets and moves up, the relief hole 302 on main sliding sleeve 3 is opened, and high-pressure medium is discharged through relief hole 302 in hollow chamber.
When detecting that junk mill reaches service life, in such a way that fusing valve bypasses pressure release, reduce the pressure in drill string.
Pressure change in well head observation drill string, to judge whether junk mill reaches its service life.This can be saved to avoid brill is accidentally mentioned
Human-saving material resources.
The content that description in the present invention is not described in detail belongs to the well-known technique of professional and technical personnel in the field.
Claims (9)
1. it is a kind of intelligence junk mill, which is characterized in that including top oil cylinder (1), piston rod (2), main sliding sleeve (3), adapter (4),
Fusing valve (5), valve end cap (6), junk mill (7), battery pack (8), control circuit board (9) and contact pin (11),
Main sliding sleeve (3) one end is connect with top oil cylinder (1), and main sliding sleeve (3) other end is connect with junk mill (7), wherein main sliding sleeve (3)
And top oil cylinder (1) is internal hollow and communicates to form hollow chamber, hollow piston rod (2) is placed in main sliding sleeve (3) and top
In the hollow chamber of oil cylinder (1) junction, inner wall dynamic sealing with main sliding sleeve (3) and top oil cylinder (1), main sliding sleeve (3) is radial
It is provided with relief hole (302), when original state, piston rod (2) makes relief hole (302) and hollow chamber not phase by its sealing function
It is logical,
It is provided with main sliding sleeve runner (301) in the side wall of main sliding sleeve (3), adapter (4), fuses valve (5), is interior equipped with valve end cap
Valve end cap (6), battery pack (8), control circuit board (9) and the contact pin (11) of runner (601),
Chamber locating for main sliding sleeve runner (301) one end and piston rod (2), main sliding sleeve runner (301) other end and switching
The connection of head (4) one end, adapter (4) other end are communicated with one end of valve end cap runner (601),
Fusing valve (5) includes valve body (12) and spool (13), and spool (13) is placed in valve body (12), is moved with valve body (12) inner wall close
It seals, is provided with the valve flowing channel (1201) communicated with the other end of valve end cap runner (601) and and hollow chamber on valve body (12)
The through-hole communicated when spool (13) is located at initial position, leans on its sealing function, valve flowing channel (1201) is separated from inside,
Junk mill (7) includes ontology and head hard alloy layer, and contact pin (11) one end is connect with control circuit board (9), the other end with
Conducting wire connection with insulating layer, the ontology and head hard alloy connecting place of other end insertion junk mill (7) of conducting wire.
2. a kind of intelligent junk mill as described in claim 1, which is characterized in that when junk mill (7) head, hard alloy layer is complete
It grinding off to the insulating layer of conducting wire and is worn, conducting wire is connected with junk mill (7) ontology, after control circuit board (9) detects Continuity signal,
Control valve core (13) movement, is opened valve flowing channel (1201), and high-pressure medium successively passes through through-hole, valve flowing channel in hollow chamber
(1201), valve end cap runner (601), adapter (4), main sliding sleeve runner (301), high-pressure medium push piston rod (2) to leave just
Beginning position moves up, and the relief hole (302) on main sliding sleeve (3) is opened, and high-pressure medium is through relief hole (302) in hollow chamber
Discharge.
3. a kind of intelligent junk mill as described in claim 1, which is characterized in that fusing valve (5) further includes zipper (14), resistance wire
(15) and spring (16), spring (16) cover on spool (13), and spool (13) and valve body (12) are connected simultaneously by zipper (14)
Spring (16) are made to be pressurized, resistance wire (15) is wrapped on zipper (14), and is connected with control circuit board (9).
4. a kind of intelligent junk mill as claimed in claim 3, which is characterized in that when junk mill (7) head, hard alloy layer is complete
It grinding off to the insulating layer of conducting wire and is worn, conducting wire is connected with junk mill (7) ontology, after control circuit board (9) detects Continuity signal,
Trigger control circuit powers to resistance wire (15) and quickly generates high heat, fuses zipper (14), and spring (16), which releases, to be pressurized, valve
Core (13) movement, is opened valve flowing channel (1201), in hollow chamber high-pressure medium successively pass through through-hole, valve flowing channel (1201),
Valve end cap runner (601), adapter (4), main sliding sleeve runner (301), high-pressure medium push piston rod (2) leave initial position to
Upper movement, the relief hole (302) on main sliding sleeve (3) are opened, and high-pressure medium is discharged through relief hole (302) in hollow chamber.
5. a kind of intelligent junk mill as described in claim 1, which is characterized in that open fusing valve (5) valve flowing channel (1201)
Mode is realized that motor is connect with lead screw by motor, lead screw and nut, and nut covers on lead screw, and nut is connect with spool (13).
6. a kind of intelligent junk mill as claimed in claim 5, which is characterized in that when junk mill (7) head, hard alloy layer is complete
It grinding off to the insulating layer of conducting wire and is worn, conducting wire is connected with junk mill (7) ontology, after control circuit board (9) detects Continuity signal,
Trigger control circuit is powered to motor, is driven lead screw rotation, and then nut band movable valve plug (13) moves, is opened valve flowing channel
(1201), high-pressure medium successively passes through through-hole, valve flowing channel (1201), valve end cap runner (601), adapter in hollow chamber
(4), main sliding sleeve runner (301), high-pressure medium push piston rod (2) to leave initial position and move up, letting out on main sliding sleeve (3)
Pressure hole (302) is opened, and high-pressure medium is discharged through relief hole (302) in hollow chamber.
7. a kind of intelligent junk mill as described in claim 1, which is characterized in that on main sliding sleeve (3) and junk mill (7) ontology, if
It is equipped with the first crossed beam trunking (303) and the second crossed beam trunking (702), conducting wire is placed in the first crossed beam trunking (303) and the second crossed beam trunking (702)
In.
8. a kind of intelligent junk mill as described in claim 1, which is characterized in that valve end cap (6) is covered in fusing valve (5) and transfers
On head (4), surface and main sliding sleeve (3) outer wall are smooth.
9. a kind of intelligent junk mill as described in claim 1, which is characterized in that be provided in junk mill (7) communicate with the outside world it is interior
Hole (701).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610959773.1A CN106437589B (en) | 2016-10-27 | 2016-10-27 | A kind of intelligence junk mill |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610959773.1A CN106437589B (en) | 2016-10-27 | 2016-10-27 | A kind of intelligence junk mill |
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| CN106437589A CN106437589A (en) | 2017-02-22 |
| CN106437589B true CN106437589B (en) | 2019-04-09 |
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| CN201610959773.1A Active CN106437589B (en) | 2016-10-27 | 2016-10-27 | A kind of intelligence junk mill |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018223048A1 (en) * | 2017-06-01 | 2018-12-06 | Geodynamics, Inc. | Electronic time delay apparatus and method |
| CN110805410B (en) * | 2019-11-18 | 2020-07-14 | 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 | Intelligent sliding sleeve of bridge-plug-free multistage fracturing electric control switch |
| CN115478803B (en) * | 2021-06-16 | 2024-02-02 | 中国石油天然气集团有限公司 | Drilling and milling tool for water hole grinding shoes and continuous oil pipe |
| CN115613990B (en) * | 2022-12-15 | 2023-04-07 | 中国石油集团川庆钻探工程有限公司 | Full-switching reversible water hole grinding shoe |
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