CN107387011A - Waterpower promotes the downhole tool for realizing continuous cutting different-diameter sleeve pipe - Google Patents
Waterpower promotes the downhole tool for realizing continuous cutting different-diameter sleeve pipe Download PDFInfo
- Publication number
- CN107387011A CN107387011A CN201710652596.7A CN201710652596A CN107387011A CN 107387011 A CN107387011 A CN 107387011A CN 201710652596 A CN201710652596 A CN 201710652596A CN 107387011 A CN107387011 A CN 107387011A
- Authority
- CN
- China
- Prior art keywords
- cutter
- housing
- push rod
- sleeve pipe
- piston
- 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
- 238000005520 cutting process Methods 0.000 title claims abstract description 41
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 238000006073 displacement reaction Methods 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 9
- 230000005945 translocation Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 238000005553 drilling Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004804 winding 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
- 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
- E21B29/002—Cutting, e.g. milling, a pipe with a cutter rotating along the circumference of the pipe
- E21B29/005—Cutting, e.g. milling, a pipe with a cutter rotating along the circumference of the pipe with a radially-expansible cutter rotating inside the pipe, e.g. for cutting an annular window
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)
- Earth Drilling (AREA)
Abstract
The downhole tool for realizing continuous cutting different-diameter sleeve pipe is promoted the present invention relates to a kind of waterpower being used in abandoned well operation process, its technical scheme is：Top connection is connected with housing by screw thread；Nozzle is located in piston push rod, and is connected by screw thread with push rod；Upper spring, indexing mechanism piston are sequentially arranged on piston push rod, and are mounted in enclosure interior；Cutter is axially evenly arranged and is connected by joint pin with housing, and cutter top keeps contacting with piston push rod；Spacing collar is located at cutter bottom, and sleeve, which is inserted in lower spring, loads enclosure interior, and sleeve upper end contacts with cutter all the time, and support cutter limits the over-large displacement of cutter simultaneously.The present invention is simple in construction, it is easy to operate, the continuous cutting to different tube diameters sleeve pipe can be achieved by the rotation of indexing mechanism, reduce the number that makes a trip, solve the problems such as cutter is difficult to withdraw enclosure interior in time simultaneously, substantially increase casing-pipe cutting efficiency and operational reliability in abandoned well operation process.
Description
Technical field
The underground work for realizing continuous cutting different-diameter sleeve pipe is promoted the present invention relates to a kind of waterpower of different well specifications
Tool, the abandoned well operation available for the casing repairing in oil-gas exploration recovery process and later stage.
Background technology
To prevent oil gas leakage from being threatened to natural environment, while in order to more rationally comprehensively utilize petroleum resources,
After exploration and petroleum resources are assessed, these without economic value Oil/gas Well and can be reached the discarded safety of Years Of Service needs
Hidden danger well implements shut-in well, is then gradually completing abandoned well operation, and the key technology in abandoned well operation is just related to casing-pipe cutting.
When casing-pipe cutting is carried out in abandoned well operation, the general hydraulic cutter using corresponding casing size, using step by step by
Duan Jinhang is cut, and such cutter is individual layer casing cutter, opens cutter hub using drilling fluid pressurization, rotary drilling roofbolt enters to sleeve pipe
Row is cut, it is impossible to is accurately and reliably controlled the full-size of cutter hub opening, is easily occurred to cut not exclusively or cut too deep cut
Hinder the intact sleeve pipe of outer layer；Need frequently to make a trip simultaneously, after changing different size blade, different tube diameters set can be carried out again
The cutting operation of pipe.Not only operating process is complicated for existing hydraulic cutter, and cutter is easy to wear, and fault rate is high, and the knife after replacing
Piece is difficult to accurately into the position of upper subjob and state, time-consuming longer, causes timeliness to waste, cutting efficiency is relatively low, economy
Have much room for improvement, it is difficult to meet the continuous cutting operation of multilayer sleeve.The number that makes a trip of Casing-Cutting is reduced in abandoned well operation, it is right
In reducing nonproductive time, avoid excessive unnecessary expenditures extremely important.
The content of the invention
It is low to solve casing-pipe cutting efficiency present in the abandoned well operation process described in background technology, can not be to cutter hub
The problems such as angle of release degree accurately controls, and cutter is easy to wear, and fault rate is high, the continuous cutting operation of different size sleeve pipe is realized, reduced
The number that makes a trip of Casing-Cutting, abandoned well operating efficiency is improved, reduces cost and risk, the invention provides a kind of propulsion of waterpower
Realize the downhole tool of continuous cutting different-diameter sleeve pipe.
To achieve the above object, the technical scheme is that：The waterpower, which promotes, realizes continuous cutting different-diameter set
The downhole tool of pipe, by top connection, nozzle, piston, sealing ring, indexing mechanism, piston push rod, pin, upper spring, joint pin,
Cutter, spacing collar, lower spring, housing composition, it is characterised in that：The top connection is connected through a screw thread with tool housing；Institute
State nozzle to be connected through a screw thread installed in piston push rod top, be connected through a screw thread between piston and piston push rod, piston push rod
Axially extending bore is inside offered, is realized and sealed by sealing ring between piston and housing；Successively by upper spring, translocation domain and piston
Push rod loads enclosure interior, and carries out axially position by endoporus step, and indexing mechanism circumferencial direction equidistantly offers track
Groove, long recess are equidistantly alternately arranged with short groove；The cutter is located in the longitudinal grooved being evenly arranged on housing, and leads to
Cross joint pin with housing to be connected, cutter top keeps contacting with piston push rod；The spacing collar is located at below cutter, stop collar
Cylinder center is provided with axially extending bore, and lower spring is located on the supporting surface in housing, and spacing collar, which is put into lower spring, to be loaded in housing
Portion, spacing collar upper end keep contacting with cutter all the time, and support cutter limits the over-large displacement of cutter simultaneously.
The beneficial effects of the invention are as follows：（1）Waterpower, which promotes, realizes that the downhole tool of continuous cutting different-diameter sleeve pipe is overall
It is simple in construction, it is easy to operate, traditional single time single layer cut is changed into a continuous cutting different tube diameters casing operation, greatly reduced
The number that makes a trip, the time required to having saved more allowing blade replacement, construction period is fundamentally shortened, cutting efficiency is improved, reaches
The purpose of cost efficiency；（2）Using the indexing mechanism with orbital groove of uniqueness, piston is promoted by the throttling action of nozzle
Realize the relative rotation between indexing mechanism and housing so that pin switches between long recess and short groove, can limit work
Stroke is filled in, body opening angle is cut to reach accurate control, realizes the purpose of blade reducing；（3）It is inlaid with cutter bod double hard
Matter carbide button, effectively improves the wearability of cutter hub, is provided with spill chip area between double rows of teeth, strengthens cutting ability, beneficial to cutting
The smooth discharge of bits, prevent chip from winding blade, so as to the timely withdrawal of cutter hub, extend the service life of cutter hub；（4）Increase
Cutter stopping means, support cutter limit the over-large displacement of cutter, cutter can be withdrawn in time after the completion of casing-pipe cutting simultaneously.
Brief description of the drawings
Fig. 1 is that waterpower of the present invention promotes the downhole tool cutter closed form for realizing continuous cutting different-diameter sleeve pipe
Structural representation under state.
In figure：1- top connections, 2- nozzles, 3- pistons, 4- sealing rings, 5- indexing mechanisms, 6- piston push rods, 7- pins, 8-
Upper spring, 9- joint pins, 10- cutteves, 11- spacing collars, 12- lower springs, 13- housings.
Fig. 2 is that waterpower of the present invention is promoted under the downhole tool working condition for realizing continuous cutting different-diameter sleeve pipe
Structural representation.
Fig. 3 is the sectional view in A-A faces in Fig. 1 of the present invention.
Fig. 4 is the structural representation of indexing mechanism.
Fig. 5 is indexing mechanism upper part rail groove expanded view.
Fig. 6 is the structural representation of cutter.
Embodiment
With reference to figure, the invention will be further described：
Shown with reference to the accompanying drawings, described waterpower promotes the downhole tool for realizing continuous cutting different-diameter sleeve pipe, by top connection 1,
Nozzle 2, piston 3, sealing ring 4, indexing mechanism 5, piston push rod 6, pin 7, upper spring 8, joint pin 9, cutter 10, spacing collar
11st, lower spring 12, housing 13 form, it is characterised in that：The top connection 1 is connected through a screw thread with tool housing 13；The spray
Mouth 2 is connected through a screw thread installed in the top of piston push rod 6, is connected through a screw thread between piston 3 and piston push rod 6, piston push rod 6
Axially extending bore is inside offered, is realized and sealed by sealing ring 4 between piston 3 and housing 13；Successively by upper spring 8, translocation domain 5
Load with piston push rod 6 inside housing 13, and axially position is carried out by endoporus step, 5 circumferentially equidistantly set on indexing mechanism
There is orbital groove, promote piston 3 to realize the relative rotation between indexing mechanism 5 and housing 13 by the throttling action of nozzle 2,
To realize switching of the pin 7 between long recess and short groove；The cutter 10 is located at the longitudinal direction being evenly arranged on housing 13 and opened
In groove, double hard-metal insert is studded with the cutting edge of the cutter hub of cutter 10, spill chip area is provided between double rows of teeth, passes through hinge
Pin 9 is connected with housing 13, and the top of cutter 10 keeps contacting with piston push rod 6；The spacing collar 11 is located at the lower section of cutter 10, limit
The position center of sleeve 11 is provided with axially extending bore, and lower spring 12 is located on the supporting surface in housing 13, and spacing collar 11 is put into lower spring
Load in 12 inside housing 13, the upper end of spacing collar 11 keeps contacting with cutter 10 all the time, and support cutter 10 limits cutter simultaneously
10 over-large displacement.
During work, cleaner for high-pressure drilling fluid is pumped into hydraulic cutter body by slush pump, and highly pressurised liquid passes through the spray in piston push rod 6
Mouth 2 produces pressure drop, promotes the upper spring 8 of the compression of piston 3 to make piston push rod 6 descending, and cutter 10 is released in the lower end of piston push rod 6, this
When pin 7 B1 is moved to by initial position A1 in the rail groove of indexing mechanism 5, while cutter 10 compresses lower spring 12, blade
Opening angle is smaller, and Casing-Cutting diameter is smaller, and the blade of opening contacts with internal surface of sleeve pipe, in company with cutting tool dextrorotation
Turn, the circumferential Casing-Cutting simultaneously of four cutting blades, until by casing severing；Termination of pumping after completion minor diameter casing-pipe cutting operation, turns
Position mechanism 5, piston 3 are up to initial position in upper spring 8 effect lower band piston push rod 6, now pin 7 in rail groove by
B1 movement A2 positions, while spacing collar 10 promotes cutter 10 to close under the effect of lower spring 12, cutter 10 is recovered in time
Inside housing 13；Be again turned on slush pump, drilling fluid promote the upper spring 8 of the compression of piston 3 drive piston push rod 6, indexing mechanism 5 to
Cutter 10 is released in lower motion, and now pin 7 moves B2 positions in rail groove by A2, at the same cutter 10 drive spacing collar 11 to
Lower compression lower spring 12, blade opening angle is larger, and the blade of opening rotates with instrument cuts major diameter sleeve pipe simultaneously；Completion is cut
Rear termination of pumping is cut, under the collective effect of upper spring 8 and lower spring 12, piston push rod 6 moves upward to initial position, and cutter 10 is received
Return, now pin is moved to A3 positions by B2, completes the sleeve pipe of continuous cutting different tube diameters in a cycle.
Claims (7)
1. waterpower promotes the downhole tool for realizing continuous cutting different-diameter sleeve pipe, by top connection（1）, nozzle（2）, piston（3）、
Sealing ring（4）, indexing mechanism（5）, piston push rod（6）, pin（7）, upper spring（8）, joint pin（9）, cutter（10）, stop collar
Cylinder（11）, lower spring（12）, housing（13）Composition, it is characterised in that：The top connection（1）With tool housing（13）Pass through screw thread
Connection；The nozzle（2）It is connected through a screw thread and is arranged on piston push rod（6）Top, piston（3）With piston push rod（6）Between lead to
Cross threaded connection, piston push rod（6）Inside offer axially extending bore, piston（3）With housing（13）Between pass through sealing ring（4）Realize
Sealing；Successively by upper spring（8）, translocation domain（5）And piston push rod（6）Load housing（13）Inside, and pass through endoporus step
Carry out axially position；The cutter（10）Positioned at housing（13）On in the longitudinal grooved that is evenly arranged, and pass through joint pin（9）With
Housing（13）It is connected, cutter（10）Top and piston push rod（6）Keep contact；The spacing collar（11）Positioned at cutter（10）Under
Side, spacing collar（11）Center is provided with axially extending bore, lower spring（12）Positioned at housing（13）On interior supporting surface, spacing collar
（11）It is put into lower spring（12）Middle loading housing（13）Inside, spacing collar（11）Upper end all the time with cutter（10）Keep contact,
Support cutter（10）Limit cutter simultaneously（10）Over-large displacement.
2. waterpower according to claim 1 promotes the downhole tool for realizing continuous cutting different-diameter sleeve pipe, its feature exists
In：The indexing mechanism（5）Positioned at piston（3）With upper spring（8）Between, indexing mechanism（5）Circumferencial direction equidistantly offers
Orbital groove, long recess are equidistantly alternately arranged with short groove.
3. waterpower according to claim 2 promotes the downhole tool for realizing continuous cutting different-diameter sleeve pipe, its feature exists
In：The indexing mechanism（5）With housing（13）Between relative rotation pass through nozzle（2）Throttling action promote piston（3）Come
Realize, and by installed in housing（13）On pin（7）Switch between long recess and short groove.
4. waterpower according to claim 3 promotes the downhole tool for realizing continuous cutting different-diameter sleeve pipe, its feature exists
In：Described pin（7）Coordinated by screw thread and be arranged on housing（13）On, circumferentially it is evenly arranged, quantity is 4.
5. waterpower according to claim 1 promotes the downhole tool for realizing continuous cutting different-diameter sleeve pipe, its feature exists
In：The cutter（10）Along housing（13）Circumferential spaced 90 ° are evenly arranged, and pass through joint pin（9）Installed in housing
（13）Inside, cutter（10）Quantity is 4.
6. waterpower according to claim 5 promotes the downhole tool for realizing continuous cutting different-diameter sleeve pipe, its feature exists
In：The cutter（10）Double hard-metal insert is studded with the cutting edge of cutter hub, spill chip area is provided between double rows of teeth.
7. waterpower according to claim 1 promotes the downhole tool for realizing continuous cutting different-diameter sleeve pipe, its feature exists
In：The sealing ring（4）Quantity is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710652596.7A CN107387011A (en) | 2017-08-02 | 2017-08-02 | Waterpower promotes the downhole tool for realizing continuous cutting different-diameter sleeve pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710652596.7A CN107387011A (en) | 2017-08-02 | 2017-08-02 | Waterpower promotes the downhole tool for realizing continuous cutting different-diameter sleeve pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107387011A true CN107387011A (en) | 2017-11-24 |
Family
ID=60344585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710652596.7A Pending CN107387011A (en) | 2017-08-02 | 2017-08-02 | Waterpower promotes the downhole tool for realizing continuous cutting different-diameter sleeve pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107387011A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468523A (en) * | 2018-05-07 | 2018-08-31 | 山东胜利石油装备产业技术研究院 | A kind of Multilayer casing pipe cutting knife |
| CN109236189A (en) * | 2018-10-24 | 2019-01-18 | 西南石油大学 | A kind of downhole drill reamer |
| CN110359871A (en) * | 2019-08-30 | 2019-10-22 | 金石钻探(唐山)股份有限公司 | A kind of drill bushing pipe well internal cutting off device and its application method |
| CN111219159A (en) * | 2020-03-25 | 2020-06-02 | 无锡锡钻地质装备有限公司 | Drill rod cutter |
| CN111305781A (en) * | 2020-04-15 | 2020-06-19 | 重庆地质矿产研究院 | Displacement device for oil field underground hydraulic joint cutting |
| CN111322027A (en) * | 2020-03-18 | 2020-06-23 | 中煤科工集团西安研究院有限公司 | Ratchet type two-stage positioning sleeve milling drill rod inner cutter |
| CN111720085A (en) * | 2020-06-30 | 2020-09-29 | 合力（天津）能源科技股份有限公司 | Adjustable well trimmer step by step |
| CN112127823A (en) * | 2020-04-29 | 2020-12-25 | 中海油能源发展股份有限公司 | Integrated multi-cutter hydraulic cutter |
| CN112780206A (en) * | 2021-01-04 | 2021-05-11 | 中国石油天然气集团有限公司 | Casing cutting, forging and milling tool for old well and abandoned well operation |
| CN114215490A (en) * | 2021-10-29 | 2022-03-22 | 西南石油大学 | Hydraulic control remote monitoring sleeve cutter |
| CN114320200A (en) * | 2021-09-17 | 2022-04-12 | 中国石油大学(华东) | Ocean abandonment well head plasma arc cutting is equipped |
| CN115405247A (en) * | 2021-05-28 | 2022-11-29 | 中国石油天然气股份有限公司 | Receive and release controllable cutting device in pit |
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| CN201943620U (en) * | 2011-02-10 | 2011-08-24 | 天合石油集团汇丰石油装备股份有限公司 | Multilayer casing pipe cutting knife |
| CN202381009U (en) * | 2011-11-25 | 2012-08-15 | 中国石油天然气集团公司 | Hydraulic machinery inner cutter body cutting device |
| US20120241142A1 (en) * | 2011-03-25 | 2012-09-27 | Cook Robert B | Apparatus for Deploying and Activating a Downhole Tool |
| CN104632109A (en) * | 2014-12-03 | 2015-05-20 | 宝鸡石油机械有限责任公司 | Circulating nipple capable of being opened and closed repeatedly |
| CN104712276A (en) * | 2015-03-18 | 2015-06-17 | 长江大学 | Hydraulic internal cutter for cutting sleeve in deep sea |
| CN205089265U (en) * | 2015-11-16 | 2016-03-16 | 中国石油集团海洋工程有限公司 | Once only cut multilayer water conservancy cutting knife for sleeve pipe |
| CN106401530A (en) * | 2016-10-27 | 2017-02-15 | 宝鸡石油机械有限责任公司 | Bypass valve capable of being repeatedly opened and closed for well drilling |
| CN206205843U (en) * | 2016-11-11 | 2017-05-31 | 朱海东 | Hydraulic water power formula internal cutter |
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| CN205089265U (en) * | 2015-11-16 | 2016-03-16 | 中国石油集团海洋工程有限公司 | Once only cut multilayer water conservancy cutting knife for sleeve pipe |
| CN106401530A (en) * | 2016-10-27 | 2017-02-15 | 宝鸡石油机械有限责任公司 | Bypass valve capable of being repeatedly opened and closed for well drilling |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468523A (en) * | 2018-05-07 | 2018-08-31 | 山东胜利石油装备产业技术研究院 | A kind of Multilayer casing pipe cutting knife |
| CN109236189A (en) * | 2018-10-24 | 2019-01-18 | 西南石油大学 | A kind of downhole drill reamer |
| CN110359871A (en) * | 2019-08-30 | 2019-10-22 | 金石钻探(唐山)股份有限公司 | A kind of drill bushing pipe well internal cutting off device and its application method |
| CN110359871B (en) * | 2019-08-30 | 2024-03-12 | 金石钻探(唐山)股份有限公司 | Cutting device in drill sleeve well and use method thereof |
| CN111322027A (en) * | 2020-03-18 | 2020-06-23 | 中煤科工集团西安研究院有限公司 | Ratchet type two-stage positioning sleeve milling drill rod inner cutter |
| CN111219159A (en) * | 2020-03-25 | 2020-06-02 | 无锡锡钻地质装备有限公司 | Drill rod cutter |
| CN111305781B (en) * | 2020-04-15 | 2022-03-29 | 重庆地质矿产研究院 | Displacement device for oil field underground hydraulic joint cutting |
| CN111305781A (en) * | 2020-04-15 | 2020-06-19 | 重庆地质矿产研究院 | Displacement device for oil field underground hydraulic joint cutting |
| CN112127823A (en) * | 2020-04-29 | 2020-12-25 | 中海油能源发展股份有限公司 | Integrated multi-cutter hydraulic cutter |
| CN111720085A (en) * | 2020-06-30 | 2020-09-29 | 合力（天津）能源科技股份有限公司 | Adjustable well trimmer step by step |
| CN112780206A (en) * | 2021-01-04 | 2021-05-11 | 中国石油天然气集团有限公司 | Casing cutting, forging and milling tool for old well and abandoned well operation |
| CN115405247A (en) * | 2021-05-28 | 2022-11-29 | 中国石油天然气股份有限公司 | Receive and release controllable cutting device in pit |
| CN115405247B (en) * | 2021-05-28 | 2023-09-08 | 中国石油天然气股份有限公司 | Downhole cutting device with controllable retraction and extension |
| CN114320200A (en) * | 2021-09-17 | 2022-04-12 | 中国石油大学(华东) | Ocean abandonment well head plasma arc cutting is equipped |
| CN114215490A (en) * | 2021-10-29 | 2022-03-22 | 西南石油大学 | Hydraulic control remote monitoring sleeve cutter |
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Application publication date: 20171124 |