CN201535137U - Expanding drill for well drilling - Google Patents
Expanding drill for well drilling Download PDFInfo
- Publication number
- CN201535137U CN201535137U CN2009203105902U CN200920310590U CN201535137U CN 201535137 U CN201535137 U CN 201535137U CN 2009203105902 U CN2009203105902 U CN 2009203105902U CN 200920310590 U CN200920310590 U CN 200920310590U CN 201535137 U CN201535137 U CN 201535137U
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- wings
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- drill bit
- drilling tool
- drilling
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Abstract
The utility model discloses an expanding drill for well drilling, comprising a cylinder 1, a piston 2, a spring 3, a piston rod 4, two bit wings 6, a support rod 8, a limiting hole 9 and the like. The expanding drill for well drilling is characterized in that one end of each bit wing 6 is connected with the piston rod 4 through the support rod 8. The expanding drill can go forward and backward with small diameters when being in a closing state, the piston is pushed by slush to extend the bit wings in order to implement backward expanding operation, hydraulic pressure is reduced after the expanding operation, the spring returns to close the bit wings, and finally the drill is retracted. The expanding drill for well drilling is not easy to be buried, and has the advantages of simple design, convenient operation and large-diameter expansion.
Description
Technical field
The utility model relates to a kind of earth drilling deep borehole-enlarging drilling tool, and can be applied to the reaming of directed drilling.
Background technology
In the wellbore construction of oil, natural gas, coal bed gas, underground coal gasification(UCG),, need carry out reaming to some part of boring usually in order to realize certain function.In present existing borehole-enlarging drilling tool, the general heavy caliber bottom expanding drill that adopts of building foundation can be realized the reaming of more shallow boring, but the reaming requirement of layer depth place boring contentedly.The disclosed boring drill of patent CN94103217, both wings can't launch/shrink, and just can't realize the part of boring is enlarged, and reaming will be from ground.The disclosed a kind of reaming bit of patent US4219087, its design have three the little rock bit that can launch, launch the reaming of advancing forward under the promotion of drilling rod during reaming.Operation is complicated, easily bury drills.Patent CN03245809 discloses a kind of borehole-enlarging drilling tool of automatic diameter changing, use slim-hole drilling in early stage in the drilling process, make the front and back drill body changing of the relative positions by pulling back drilling rod, the cutter hub automatic unlocking opens to maximum, realizes retreating ream operation with rig and drilling rod rotation again.
In addition, drilling tool local or interim reaming generally adopts off-balance bit or connect steel cylinder tungsten carbide button under drilling rod realizes reaming, but counter bore diameter has certain limitation, be difficult to realize that vast scale changes reaming, and can not effectively cut harder stratum, it is inhomogeneous to expand the aperture that.What just do not have before the reaming at the worst such as the diameter ratio of the disclosed borehole-enlarging drilling tool of US6668949 institute reaming.
The utility model content
In order to overcome existing borehole-enlarging drilling tool complicated operation, easy bury drills, to be difficult for realizing that local reaming, counter bore diameter change shortcomings such as little, the utility model proposes the local borehole-enlarging drilling tool of a kind of drilling well, not only can realize the major diameter reaming, and can be to carrying out effective reaming than hard formation and dark coal seam.
The utility model drilling tool, comprise: cylinder barrel 1, piston 2, spring 3, piston rod 4, connector 5, drill bit both wings 6, alloy head 7, support bar 8 and spacing hole 9 etc., the know-why that its technical solution problem is adopted is: drilling tool is designed to expandable type, drilling rod connects cylinder barrel 1 down, cylinder barrel connects the both wings 6 of drill bit for 1 time, stud with hard alloy head 7 on the both wings, support bar 8 is installed below.Piston 2 is installed in the cylinder barrel 1, and the spring 3 by hydraulic pressure and cylinder barrel lower end comes moving of control piston 2, thereby the both wings of drilling tool are shunk and launches.Usually arrange several groups of spacing holes at distance cylinder barrel 1 upper edge certain position, spacing hole plays the pressure limiting position-limiting action.The hydraulic drive piston 2 of mud moves down, and it is descending to drive piston rod 4, makes the drill bit both wings launch, and the expansion angular range of this borehole-enlarging drilling tool both wings can be extended to Φ 300mm～Φ 1000mm with Φ 100mm～Φ 300mm hole usually at 0～45 °.
In use, utilize common drill bit to be drilled to the boring of expection reaming earlier, take out the bit change-over borehole-enlarging drilling tool again; Connect borehole-enlarging drilling tool by screw thread under common borer drill rod, drilling tool cylinder barrel upper end inwall has screw thread.
Concrete mode is: be drilled to the boring that certain diameter is arranged with common drilling tool from ground to the stratum earlier, the drilling rod lower end that again borehole-enlarging drilling tool is connected common rig is lowered to the bottom of the predetermined reaming section of boring, borehole-enlarging drilling tool is in contraction state before the reaming, start rig and make the drilling tool rotation, utilize slush pump then, be pressed into mud to drilling rod inside, mud enters in the cylinder barrel 1 of borehole-enlarging drilling tool, promoting piston 2 moves down, mud continuously outflows drilling rod by spacing hole and enters boring, mud in the boring carries drilling cuttings and returns ground along drilling-rod external wall, forms mud circulation thus and keeps the piston of borehole-enlarging drilling tool to be under the certain pressure, and the drill bit both wings keep certain start point.Rig drives drilling rod and the rotation of bottom drill bit thereof, both wings 6 on the drill bit will constantly cut the boring inwall, after both wings are expanded to predetermined angular, rig begins upwards to carry brill, make the both wings of borehole-enlarging drilling tool constantly upwards cut inner hole wall, the rock dust free-falling can not have influence on drill bit at the bottom of the hole, is difficult for bury drills.
Boring is expanded to expecting that after the length, earlier with the slush pump termination of pumping, at this moment, because 3 effects of cylinder barrel 1 contained spring reset piston 2, both wings 6 shrink, and drilling rod and borehole-enlarging drilling tool can be proposed, and finish reaming.
The utility model drilling well borehole-enlarging drilling tool can launch to be two wings 6 of different angles, studs with hard alloy head 7 on it, and the opening/shrink of both wings drives support bars 8 with mud driven plunger 2 and realize.
When the utility model drilling well borehole-enlarging drilling tool is type, and part is formed.Can realize that at closure state minor diameter creeps into, its reaming program is that metapore expands to Φ 300mm～Φ 1000mm.
The utility model adopts the mud pressure of drilling mud pump and the stretching degree that flow is controlled the drill bit fin, realizes the reaming of different-diameter, can realize local reaming in deep hole, to good effect is arranged than hard coal seam.
The utility model is upwards to carry brill in the rotary course, constantly cuts hole wall, and the rock dust free-falling can not have influence on drill bit at the bottom of the hole, be difficult for bury drills, if hole wall slump situation occurs, but this drill bit also pressure release make spring reset, both wings shrink, thereby make the drill bit ratio be easier to propose, and are unlikely to bury drills.
The utility model drilling tool structure is simple, easy to operate, has very practical dissemination, be specially adapted to the construction of the gasification furnace combustion chamber in the drilling construction of coalfield, the utility model drilling tool can be realized the minor diameter advance and retreat at closure state, promotes piston by mud both wings are launched, and carries out the retrusive ream operation, can reduce hydraulic pressure after finishing reaming, spring reset makes the both wings closure, removes brill.This borehole-enlarging drilling tool be difficult for bury drills, simplicity of design, easy to operate, can realize the major diameter reaming.
Description of drawings
Fig. 1 is a structure chart of the present utility model.
Among the figure, the 1--cylinder barrel; The 2--piston; The 3--spring; The 4--piston rod; The 5--connector; 6--drill bit both wings; 7--alloy head; The 8--support bar, the 9--spacing hole.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is elaborated.
Borehole-enlarging drilling tool disclosed in the utility model is seen accompanying drawing 1, and borehole-enlarging drilling tool is made up of cylinder barrel 1, piston 2, spring 3, drill bit both wings 6, support bar 8 and spacing hole 9.Usually evenly arrange 4 spacing holes that diameter is 10mm at 250mm place, distance cylinder barrel 1 upper edge, spacing hole plays the pressure limiting position-limiting action, arranges evenly that apart from 410mm place, cylinder barrel upper edge 4 diameters are the spacing hole of 10mm again.Evenly be inlaid with 100 alloy heads 7 on the drill bit both wings 6, cylinder barrel 1 is connected by connector 5 with an end of drill bit both wings 6, and the other end of drill bit both wings 6 is connected with piston rod 4 by support bar 8.Piston in the cylinder barrel 1 is pressed with spring 32 times, does not have on piston top under the situation of pressure, and spring 3 trails, and piston rod 4 moves up, and drives support bar 8 and shrinks, thereby make drill bit both wings 6 closures.When piston 2 pressurizeds, piston can compress spring 3, drives piston rod 4 and moves downward, and by support bar 8 bit arm both wings 6 is launched, and is expanded to 0～45 ° of expection angle by spacing hole fixed drill bit both wings 6.
The utility model can be made the different a series of products of specification according to the actual requirements.
Claims (5)
1. drilling well borehole-enlarging drilling tool, comprise: cylinder barrel (1), piston (2), spring (3), piston rod (4), drill bit both wings (6), support bar (8) and spacing hole (9) is characterized in that: an end of drill bit both wings (6) is connected with piston rod (4) by support bar (8).
2. drilling well borehole-enlarging drilling tool according to claim 1 is characterized in that: cylinder barrel (1) is connected by connector (5) with an end of drill bit both wings (6).
3. drilling well borehole-enlarging drilling tool according to claim 1 is characterized in that: be inlaid with alloy head (7) on the drill bit both wings (6).
4. drilling well borehole-enlarging drilling tool according to claim 1 is characterized in that: drill bit both wings (6) start point is 0～45 °.
5. according to described any one drilling well borehole-enlarging drilling tool of claim 1～4, it is characterized in that: be pressed with spring (3) under the piston (2) in the cylinder barrel (1), do not have under the situation of pressure on piston (2) top, spring (3) trails, piston rod (4) moves up, drive support bar (8) and shrink drill bit both wings (6) closure; When piston (2) pressurized, piston can compress spring (3), drives piston rod (4) and moves downward, and by support bar (8) drill bit both wings (6) is launched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203105902U CN201535137U (en) | 2009-09-17 | 2009-09-17 | Expanding drill for well drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203105902U CN201535137U (en) | 2009-09-17 | 2009-09-17 | Expanding drill for well drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201535137U true CN201535137U (en) | 2010-07-28 |
Family
ID=42534918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203105902U Expired - Lifetime CN201535137U (en) | 2009-09-17 | 2009-09-17 | Expanding drill for well drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201535137U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080502A (en) * | 2011-02-25 | 2011-06-01 | 马喜 | Sediment pulling device of non-excavated guide driller |
| CN102220760A (en) * | 2011-04-14 | 2011-10-19 | 李国忠 | Method for casting deep inverted T-shaped pile |
| CN102561326A (en) * | 2012-03-19 | 2012-07-11 | 董兰田 | Three-branch single-cylinder hydraulic bidirectional expansion-extrusion device |
| CN104831720A (en) * | 2015-05-22 | 2015-08-12 | 南通中远船务工程有限公司 | Pile shoe and using method thereof |
| CN105040664A (en) * | 2015-05-22 | 2015-11-11 | 南通中远船务工程有限公司 | Device improving stability of wind power installing ship and using method of device |
| CN105370209A (en) * | 2015-11-26 | 2016-03-02 | 中煤科工集团西安研究院有限公司 | Drill pipe lifting and reaming drill and construction method thereof |
| CN106223860A (en) * | 2016-08-19 | 2016-12-14 | 李泓胜 | A kind of using method of interior reaming PDC drill bit |
| CN106926512A (en) * | 2017-04-27 | 2017-07-07 | 长沙康乐包装有限公司 | A kind of carton production punching briquetting device |
| CN107013167A (en) * | 2017-06-02 | 2017-08-04 | 安徽恒源煤电股份有限公司 | A kind of anti-skewed orientation combined drill |
| CN107537837A (en) * | 2017-09-27 | 2018-01-05 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of oil-contained drilling cuttings extraction kettle barrel cleaning tool and application method |
| CN109958393A (en) * | 2019-03-13 | 2019-07-02 | 东北大学 | A kind of anti-sticking burying drilling rig and its application method |
| CN110238136A (en) * | 2019-06-19 | 2019-09-17 | 宜昌市燕狮科技开发有限责任公司 | Floating cornish bit and application method |
-
2009
- 2009-09-17 CN CN2009203105902U patent/CN201535137U/en not_active Expired - Lifetime
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080502A (en) * | 2011-02-25 | 2011-06-01 | 马喜 | Sediment pulling device of non-excavated guide driller |
| CN102220760A (en) * | 2011-04-14 | 2011-10-19 | 李国忠 | Method for casting deep inverted T-shaped pile |
| WO2012139435A1 (en) * | 2011-04-14 | 2012-10-18 | Li Guozhong | Specialized drill bit for deep hole inverted t-shaped pile and formation method thereof |
| CN102561326A (en) * | 2012-03-19 | 2012-07-11 | 董兰田 | Three-branch single-cylinder hydraulic bidirectional expansion-extrusion device |
| CN104831720A (en) * | 2015-05-22 | 2015-08-12 | 南通中远船务工程有限公司 | Pile shoe and using method thereof |
| CN105040664A (en) * | 2015-05-22 | 2015-11-11 | 南通中远船务工程有限公司 | Device improving stability of wind power installing ship and using method of device |
| CN105370209B (en) * | 2015-11-26 | 2018-10-12 | 中煤科工集团西安研究院有限公司 | It carries and bores reaming drilling tool and its construction method |
| CN105370209A (en) * | 2015-11-26 | 2016-03-02 | 中煤科工集团西安研究院有限公司 | Drill pipe lifting and reaming drill and construction method thereof |
| CN106223860B (en) * | 2016-08-19 | 2018-11-13 | 盘锦辽河油田泰成实业有限责任公司 | A kind of application method of interior reaming PDC drill bit |
| CN106223860A (en) * | 2016-08-19 | 2016-12-14 | 李泓胜 | A kind of using method of interior reaming PDC drill bit |
| CN106926512A (en) * | 2017-04-27 | 2017-07-07 | 长沙康乐包装有限公司 | A kind of carton production punching briquetting device |
| CN106926512B (en) * | 2017-04-27 | 2022-08-26 | 长沙康乐包装有限公司 | Carton production is with punching press package device |
| CN107013167A (en) * | 2017-06-02 | 2017-08-04 | 安徽恒源煤电股份有限公司 | A kind of anti-skewed orientation combined drill |
| CN107537837A (en) * | 2017-09-27 | 2018-01-05 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of oil-contained drilling cuttings extraction kettle barrel cleaning tool and application method |
| CN109958393A (en) * | 2019-03-13 | 2019-07-02 | 东北大学 | A kind of anti-sticking burying drilling rig and its application method |
| CN109958393B (en) * | 2019-03-13 | 2020-03-20 | 东北大学 | Anti-sticking buried drill drilling device and using method thereof |
| CN110238136A (en) * | 2019-06-19 | 2019-09-17 | 宜昌市燕狮科技开发有限责任公司 | Floating cornish bit and application method |
| CN110238136B (en) * | 2019-06-19 | 2023-09-05 | 宜昌市燕狮科技开发有限责任公司 | Floating reamer and use method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170216 Address after: 065001 Hebei economic and Technological Development Zone, Langfang science and Technology Park in the Southern District of B building, room 522 Patentee after: ENN SCIENCE & TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: 065001 Hebei Province Economic Development Zone Langfang City Huaxiang Patentee before: ENN Coal Gasification Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100728 |
|
| CX01 | Expiry of patent term |