CN107893640A - A kind of down-hole string drilling tool - Google Patents
A kind of down-hole string drilling tool Download PDFInfo
- Publication number
- CN107893640A CN107893640A CN201711081854.7A CN201711081854A CN107893640A CN 107893640 A CN107893640 A CN 107893640A CN 201711081854 A CN201711081854 A CN 201711081854A CN 107893640 A CN107893640 A CN 107893640A
- Authority
- CN
- China
- Prior art keywords
- main body
- pin
- punch block
- drilling tool
- hole string
- 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
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 down-hole string drilling tool, its piston is positioned by shear pin in body top axial seal；Cone top forms the sealing that slides axially with concave station in main body；Punch block is fixed on lower body part by pin；Main body, piston and cone form closed cavity；Main body offers pressure guide hole and punch block groove, and cone bottom stress working face is contract type body or tapered structure, when pin is along main body radial direction, punch block axial rotation；Pin is axially mounted, punch block energy radial rotating.Only down-hole string drilling tool need to be put into tubing string or the instrument is lowered into down-hole string after certain depth using cable, steel wire operation, continuous oil pipe operation, continuous oil pipe operation, pressurization, which achieves that, out of tubing string punches or cuts on tubing string, with wireline operation and continuous oil pipe operation ratio, construction is simple safety, construction operation expense is reduced, is the breakthrough on down-hole string punching or cutting technique.
Description
Technical field
The present invention provides a kind of down-hole string drilling tool, belongs to oil well kit, technology field.
Background technology
Pipe string of oil field downhole needs the situation for punching construction more, as needed to punch draining during flow string well workover；Tubing string
Kill-job circulation canal is established in punching；Sand washing circulation canal is established in punching on tubing string when fracturing string meets card；Need to cut during well workover
Pipe cutting post etc., it is costly using wireline operation or continuous oil pipe operation punching or cutting construction.
The content of the invention
It is an object of the invention to provide a kind of down-hole string drilling tool.
The piston of the present invention is positioned by shear pin in body top axial seal；Cone top forms axle with concave station in main body
To being slidingly sealed；Punch block is fixed on lower body part by pin；Main body, piston and cone form closed cavity；Main body opens up
There are pressure guide hole and punch block groove.
Described cone bottom stress working face is contract type body or tapered structure.
The pin is along main body radially installed, punch block energy axial rotation.
The pin is axially mounted along main body, punch block energy radial rotating.
The punch block and pin are respectively one or two.
The shear pin cuts off to cut ring work.
The use process of the present invention：
Down-hole string drilling tool top or bottom connection weighted lever.The instrument is directly thrown into down-hole string or adopted
The instrument is lowered into down-hole string after certain depth with cable, steel wire operation, coiled tubing, continuous beam hanger operation, Xiang Guan
To pressurize in post, pressure is applied on piston by pressure guide hole, and piston is produced in the presence of pressure differential along the axial descending power of main body,
When this power reaches certain numerical value, shear pin is cut, and piston fast downlink is pressed onto cone top, cone fast downlink, in cone
Contract type body wedge surface in the presence of, punch block groove of the punch block along lower body part to outside stretch out, punch tubing string, realize in tubing string
The cutting of outer connection or realization to tubing string.
Beneficial effects of the present invention：
Only the instrument need to be put into tubing string or be lowered into the instrument using cable, steel wire operation, continuous oil pipe operation
In down-hole string after certain depth, pressurization, which achieves that, out of tubing string punches or cuts on tubing string, with wireline operation and continuously
Oil pipe operation ratio, construction is simple safety, reduces construction operation expense, is the breakthrough on down-hole string punching or cutting technique.
Brief description of the drawings
Fig. 1 is the profile of the present invention.
Embodiment
Refer to shown in Fig. 1, a kind of down-hole string drilling tool, portion is axially close on the body 1 by shear pin 2 for its piston 3
Envelope positioning；The top of cone 4 forms the sealing that slides axially with concave station 12 in main body 1；Punch block 5 is fixed under main body 1 by pin 6
Portion；Main body 1, piston 3 and cone 4 form closed cavity；Main body 1 offers pressure guide hole 13 and punch block groove 13.
The described bottom stress working face of cone 4 is contract type body 41 or tapered structure.
The pin 6 can axial rotation along the radially installed of main body 1, punch block 5.
The pin 6 can be with axially mounted along main body 1, and punch block 5 can radial rotating.
The punch block 5 and pin 6 are respectively one or two.
The shear pin 2 cuts off to cut ring work.
The use process of the present embodiment：
Down-hole string drilling tool top or bottom connection weighted lever.The instrument is directly thrown into down-hole string or adopted
The instrument is lowered into down-hole string after certain depth with cable, steel wire operation, coiled tubing, continuous beam hanger operation, to
Pressurizeed in tubing string, pressure is applied on piston 3 by pressure guide hole 13, and piston 3 produces along main body 1 axially in the presence of pressure differential
Descending power, when this power reaches certain numerical value, shear pin 2 is cut, and the fast downlink of piston 3 is pressed onto the top of cone 4, and cone 4 is quick
Descending, in the presence of the wedge surface of contract type body 41 of cone 4, punch block groove 13 of the punch block 5 along the bottom of main body 1 stretches out to outside,
Tubing string is punched, realizes the cutting of the inside and outside connection of tubing string or realization to tubing string.
Claims (6)
- A kind of 1. down-hole string drilling tool, it is characterised in that：Its piston (3) is close in main body (1) upper axial by shear pin (2) Envelope positioning；Cone (4) top forms the sealing that slides axially with main body (1) interior concave station (12)；Punch block (5) is solid by pin (6) Due to main body (1) bottom；Main body (1), piston (3) and cone (4) form closed cavity；Main body (1) offers pressure guide hole (13) With punch block groove (13).
- A kind of 2. down-hole string drilling tool according to claim 1, it is characterised in that：Described cone (4) bottom by Power working face is contract type body (41) or tapered structure.
- A kind of 3. down-hole string drilling tool according to claim 1, it is characterised in that：The pin (6) is along main body (1) Radially installed, punch block (5) can axial rotations.
- A kind of 4. down-hole string drilling tool according to claim 1, it is characterised in that：The pin (6) is along main body (1) Axially mounted, punch block (5) can radial rotating.
- A kind of 5. down-hole string drilling tool according to claim 1, it is characterised in that：The shear pin (2) is lived to cut ring Cut off.
- A kind of 6. down-hole string drilling tool according to claim 1, it is characterised in that：The punch block (5) and pin (6) it is respectively one or two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711081854.7A CN107893640B (en) | 2017-11-07 | 2017-11-07 | Downhole pipe column punching tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711081854.7A CN107893640B (en) | 2017-11-07 | 2017-11-07 | Downhole pipe column punching tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107893640A true CN107893640A (en) | 2018-04-10 |
| CN107893640B CN107893640B (en) | 2020-08-25 |
Family
ID=61804217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711081854.7A Active CN107893640B (en) | 2017-11-07 | 2017-11-07 | Downhole pipe column punching tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107893640B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111878024A (en) * | 2020-06-29 | 2020-11-03 | 中国石油天然气股份有限公司 | Drilling tool and method for pipe column steel wire operation |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2178782Y (en) * | 1994-01-11 | 1994-10-05 | 许钰 | Waterpower expanding casing window opening tool |
| CN2580098Y (en) * | 2002-07-31 | 2003-10-15 | 詹景峰 | Oil pipe grinding and cutting device |
| CN202073518U (en) * | 2011-05-12 | 2011-12-14 | 中国石油化工集团公司 | Gravitational pressure type oil pipe windowing device |
| CN102322234A (en) * | 2011-10-09 | 2012-01-18 | 山东正元地质资源勘查有限责任公司烟台分公司 | Sliding block guiding hydraulic cutting knife |
| CN204344039U (en) * | 2014-12-18 | 2015-05-20 | 贵州高峰石油机械股份有限公司 | A kind of hydraulic variable diameter junk mill with guide cone |
| US20160130899A1 (en) * | 2014-11-10 | 2016-05-12 | Knight Information Systems, Llc | Expandable Section Mill and Method |
| CN205605152U (en) * | 2016-05-13 | 2016-09-28 | 张凯 | High pressure nitrogen gas hydraulic pressure shearing mechanism |
-
2017
- 2017-11-07 CN CN201711081854.7A patent/CN107893640B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2178782Y (en) * | 1994-01-11 | 1994-10-05 | 许钰 | Waterpower expanding casing window opening tool |
| CN2580098Y (en) * | 2002-07-31 | 2003-10-15 | 詹景峰 | Oil pipe grinding and cutting device |
| CN202073518U (en) * | 2011-05-12 | 2011-12-14 | 中国石油化工集团公司 | Gravitational pressure type oil pipe windowing device |
| CN102322234A (en) * | 2011-10-09 | 2012-01-18 | 山东正元地质资源勘查有限责任公司烟台分公司 | Sliding block guiding hydraulic cutting knife |
| US20160130899A1 (en) * | 2014-11-10 | 2016-05-12 | Knight Information Systems, Llc | Expandable Section Mill and Method |
| CN204344039U (en) * | 2014-12-18 | 2015-05-20 | 贵州高峰石油机械股份有限公司 | A kind of hydraulic variable diameter junk mill with guide cone |
| CN205605152U (en) * | 2016-05-13 | 2016-09-28 | 张凯 | High pressure nitrogen gas hydraulic pressure shearing mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111878024A (en) * | 2020-06-29 | 2020-11-03 | 中国石油天然气股份有限公司 | Drilling tool and method for pipe column steel wire operation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107893640B (en) | 2020-08-25 |
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