CN103397847A - Rapid ice layer air drilling reverse-circulation continuous coring drill bit - Google Patents
Rapid ice layer air drilling reverse-circulation continuous coring drill bit Download PDFInfo
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- CN103397847A CN103397847A CN2013102868457A CN201310286845A CN103397847A CN 103397847 A CN103397847 A CN 103397847A CN 2013102868457 A CN2013102868457 A CN 2013102868457A CN 201310286845 A CN201310286845 A CN 201310286845A CN 103397847 A CN103397847 A CN 103397847A
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Abstract
The invention discloses a rapid ice layer air drilling reverse-circulation continuous coring drill bit. A plurality of cutting tools and ejecting drill bit inner bodies which are matched with the cutting tools are arranged on a drill bit body, the drill bit body and the drill bit inner bodies are connected through conical roller bearings, and the drill bit body and the drill bit inner bodies form an annular gap which can allow gas to pass through. The drill bit inner bodies are provided with inner ejection holes and eccentric clamping springs. The tilting angle of each inner ejection hole is 30-50 degrees, the diameter of each inner ejection hole is 5-10 millimeters, and the number of the inner ejection holes is two to six. A central passage is formed in the drill bit inner bodies. The drill bit inner bodies, the annular gap, the cutting tools, the inner ejection holes and bottom ejection holes are communicated with the central passage. The rapid ice layer air drilling reverse-circulation continuous coring drill bit is simple in structural design, good in reverse-circulation effect, and capable of obtaining an intact ice core of a medium depth ice layer and well overcoming the defect of the negative influence of drilling fluid in polar region drilling on the ice core and the polar region environment. The rapid ice layer air drilling reverse-circulation continuous coring drill bit will become an important part of a novel, simple, convenient, rapid and environment-friendly ice layer drilling technology in polar research and polar study in China, and meanwhile an effective technology supplement is provided for polar region deep ice layer drilling of China.
Description
Technical field
The present invention relates to a kind of drilling tools, particularly the anti-continuous coring drill bit that circulates of quick ice sheet air drilling under the shallow-layer ice sheet of a kind of South Pole.
Background technology
The drilling fluid that present ice sheet creeps into use has a great impact the polar region environment, and is as contaminated air, snow cover, ice bits and groundwater resources etc., totally unfavorable to the biology of subglacial simultaneously.Due to reasons such as temperature and weathers, the time that the polar region naturally recovers required other area that surpasses far away, therefore, in case the polar region environment is polluted, consequence will be abnormal serious.Meanwhile, creep into the moral purity that obtains and also can be subject to the pollution of drilling fluid, and can not really reach, creep into the purpose of getting moral purity.The urgent need of South Pole probing is at present sought a kind of novel environment friendly and is crept into fluid.The air drilling technology is acknowledged as and is widely used the present age and has one of drilling technique method of development prospect most, and widely applies in fields such as geological prospecting, oil gas exploration, hydrological well, mine excavation, hazards control and geotechnical engineering constructions.Until now, adopting in the world air is direct circulation as the Fluid Circulation mode that the ice sheet of circulatory mediator creeps into, the Rapid Air Movement(RAM that adopts as the U.S.) Drill.Yet due to the loose condition (of surface) of aperture and shallow-layer ice sheet, in drilling process, leakage and aperture hole enlargement easily occur in compressed air, and compressed air require reduces, flow velocity reduces, and can't discharge the ice bits, and the ice bits repeat broken at the bottom of hole, drilling efficiency is low, and drilling time is longer, until finally can not drilling depth.The method drilling depth of direct circulation air drilling generally can only reach 100 meters left and right, finally can't realize creeping into target and stop creeping into.Air Reverse Circulation is got ice core drilling technique continuously, utilizes the both arms drilling rod, at the bottom of compressed air is delivered to hole from the gap between the drilling rod inner and outer pipes, carries the ice core and ices bits and return to earth's surface from the drilling rod central passage, realizes not stopping to bore continuous coring.
Therefore, how according to existing anti-circulated air drilling technology, design a kind of structural parameters reasonable, the efficiently quick ice sheet air drilling of drilling efficiency does not stop to bore the continuous coring drill bit becomes current subject matter.
Summary of the invention
The present invention is exactly on the basis of air reverse circulation drilling technology, and a kind of ice sheet Quick air that provides creeps into anti-circulation continuous coring drill bit.
The present invention is provided with several cutting elements and supporting jet bit endosome with it on bit body; Bit body is connected by taper roll bearing with the drill bit endosome, but bit body and drill bit endosome are formed with the annular gap that supplied gas is passed through; The drill bit endosome is provided with interior spray orifice and eccentric jump ring, and the inclination angle of interior spray orifice is 30 ~ 50 °, and diameter is 5 ~ 10mm, and quantity is 2 ~ 6; The drill bit endosome has central passage; Drill bit endosome, annular gap, cutting element, interior spray orifice, end spray orifice are connected with central passage.
Beneficial effect of the present invention:
The structure simplicity of design, anti-circulating effect is good, can obtain the complete moral purity of moderate depth ice sheet, well overcomes the adverse effect of drilling fluid to moral purity and polar region environment in polar drilling.To become China's polar expedition and polar research a kind of simple and easy, easily and fast, the important component part of the novel ice sheet drilling technique of environmental protection.Simultaneously, for the probing of deep, China polar region ice sheet, provide a kind of effective technique complementary.As a kind of novel ice sheet Quick air, creep into anti-circulation continuous coring drill bit, especially the coring under the shallow-layer ice sheet of the South Pole, will greatly improve drilling efficiency, obtain complete good moral purity, and can prevent that the drilling fluid that uses in other drilling methods from polluting polar region environment and the moral purity that obtains.
The accompanying drawing explanation
Fig. 1 is sectional view of the present invention.
The 1-bit body; 2-drill bit endosome; The 3-annular gap; The eccentric jump ring of 4-; The 5-taper roll bearing; The 6-cutting element; Spray orifice in 7-; The 8-central passage; Spray orifice at the bottom of 9-.
The specific embodiment
Refer to shown in Figure 1ly, the present invention is provided with several cutting elements 6 and supporting jet bit endosome 2 with it on bit body 1; Bit body 1 is connected by taper roll bearing 5 with drill bit endosome 2, but bit body 1 has formed with drill bit endosome 2 annular gap 3 that supplied gas is passed through; Drill bit endosome 2 is provided with interior spray orifice 7 and eccentric jump ring 4; The inclination angle of interior spray orifice 7 is that 30 ~ 50 °, diameter are 5 ~ 10mm, and quantity is 2 ~ 6; Drill bit endosome 2 has central passage 8; Drill bit endosome 2, annular gap 3, cutting element 6, interior spray orifice 7, end spray orifice 9 are connected with central passage 8.
Creep into while starting, bit body 1 revolution, cutting element 6 cutting ice sheets, drill bit endosome 2, can be along with bit body 1 turns round together due under the effect at taper roll bearing 5.Compressed air enters annular gap 3 via double-wall drill pipe.Part gas is from end spray orifice 9 ejection at a high speed of drill bit bottom, the ice that is cut by cutting element 6 at the bottom of purge hole bits.Another part gas enters central passage from the interior spray orifice 7 on drill bit endosome 2.The moral purity that obtains in drilling process, blocked the moral purity that is broken into certain-length under the effect of eccentric jump ring 4.The air-flow that mixes the ice bits at the bottom of the moral purity that card is disconnected and hole is under the acting in conjunction that seals between the injection suction of the high speed flow type pump with injection of interior spray orifice and drill bit outer wall and hole wall, and the central passage by double-wall drill pipe, be transported to earth's surface.In drilling process, do not stop to bore the disconnected moral purity of continuous-form card, realize obtaining continuously the purpose of moral purity.
Claims (2)
1. an ice sheet Quick air creeps into anti-circulation continuous coring drill bit, is characterised in that: it is on bit body (1), to be provided with several cutting elements (6) and supporting jet bit endosome (2) with it; Bit body (1) is connected by taper roll bearing (5) with drill bit endosome (2), bit body (1) and drill bit endosome (2) but formed the annular gap that supplied gas is passed through (3); Drill bit endosome (2) is provided with interior spray orifice (7) and eccentric jump ring (4); Drill bit endosome (2) has central passage (8); Drill bit endosome (2), annular gap (3), cutting element (6), interior spray orifice (7), end spray orifice (9) are connected with central passage (8).
2. a kind of ice sheet Quick air according to claim 1 creeps into anti-circulation continuous coring drill bit, is characterised in that: the inclination angle of described interior spray orifice (7) is that 30 ~ 50 °, diameter are that 5 ~ 10mm, quantity are 2 ~ 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013102868457A CN103397847A (en) | 2013-07-08 | 2013-07-08 | Rapid ice layer air drilling reverse-circulation continuous coring drill bit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013102868457A CN103397847A (en) | 2013-07-08 | 2013-07-08 | Rapid ice layer air drilling reverse-circulation continuous coring drill bit |
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| CN103397847A true CN103397847A (en) | 2013-11-20 |
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| CN2013102868457A Pending CN103397847A (en) | 2013-07-08 | 2013-07-08 | Rapid ice layer air drilling reverse-circulation continuous coring drill bit |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643913A (en) * | 2013-12-05 | 2014-03-19 | 吉林大学 | Ice layer air turbine reverse circulation continuous coring downhole power drilling tool |
| CN105507816A (en) * | 2016-02-03 | 2016-04-20 | 吉林大学 | Core-drilling type hard alloy drill bit for polar ice rock interlayer |
| CN106014202A (en) * | 2016-07-25 | 2016-10-12 | 吉林大学 | Hot water core drill used at glacier |
| CN106257265A (en) * | 2016-08-04 | 2016-12-28 | 吉林大学 | A kind of single action for ocean gas hydrate exploration rotates Sampling driller |
| CN106677707A (en) * | 2017-03-22 | 2017-05-17 | 吉林大学 | Air reverse circulation continuous coring ice drill bit |
| CN107035329A (en) * | 2017-05-27 | 2017-08-11 | 重庆泛嘉晟禾工程技术检测有限公司 | A kind of coal mine gas extraction borehole presses wind reacting cycle inward turning emitter |
| CN107630664A (en) * | 2017-10-31 | 2018-01-26 | 吉林大学 | A kind of warm ice sheet drilling uses ice auger drill bit |
| CN108625775A (en) * | 2018-07-09 | 2018-10-09 | 吉林大学 | A kind of revolution cutting type ice sheet hot melt drilling apparatus |
| CN108868595A (en) * | 2018-07-26 | 2018-11-23 | 吉林大学 | A kind of ice layer of polar region Air Reverse Circulation fast drilling system |
| CN109441384A (en) * | 2018-12-24 | 2019-03-08 | 吉林大学 | A kind of laser coring drilling method and drilling apparatus for ice sheet probing |
| CN109930994A (en) * | 2019-04-15 | 2019-06-25 | 浙江华东建设工程有限公司 | Continuous sampling reverse circulation drill bit, continuous sampling device and continuous sampling method |
| US10337249B2 (en) | 2017-02-04 | 2019-07-02 | Jason A Hatfield | Drilling wells with air |
| CN111677469A (en) * | 2020-06-15 | 2020-09-18 | 中煤科工集团西安研究院有限公司 | Negative pressure suction short circuit for nearly horizontal drilling air reverse circulation drilling tool |
| CN113309472A (en) * | 2021-07-02 | 2021-08-27 | 重庆大学 | Three-channel reverse circulation drill bit |
| CN114109288A (en) * | 2021-12-02 | 2022-03-01 | 吉林大学 | Pneumatic drive rapid coring drilling tool for polar ice layer |
| CN114991674A (en) * | 2022-06-22 | 2022-09-02 | 中国电建集团华东勘测设计研究院有限公司 | A automatic drilling tool that takes a sample of fast assembly for frozen soil layer exploration |
| CN115234186A (en) * | 2022-08-12 | 2022-10-25 | 中国铁建重工集团股份有限公司 | Combined core drilling machine and working method thereof |
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| CN203321327U (en) * | 2013-07-08 | 2013-12-04 | 吉林大学 | Ice layer air rapid drilling reverse circulation continuous coring drill bit |
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| US2421997A (en) * | 1945-06-21 | 1947-06-10 | Shell Dev | Core barrel |
| US3981371A (en) * | 1975-06-06 | 1976-09-21 | Jamie Malcolm Wallis | Core sampling drill |
| US4694916A (en) * | 1986-09-22 | 1987-09-22 | R. C. Ltd. | Continuous coring drill bit |
| CN101255783A (en) * | 2008-03-07 | 2008-09-03 | 同济大学 | Improved large diameter air reverse circulation drill bit structure |
| CN203321327U (en) * | 2013-07-08 | 2013-12-04 | 吉林大学 | Ice layer air rapid drilling reverse circulation continuous coring drill bit |
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643913A (en) * | 2013-12-05 | 2014-03-19 | 吉林大学 | Ice layer air turbine reverse circulation continuous coring downhole power drilling tool |
| CN105507816A (en) * | 2016-02-03 | 2016-04-20 | 吉林大学 | Core-drilling type hard alloy drill bit for polar ice rock interlayer |
| CN106014202A (en) * | 2016-07-25 | 2016-10-12 | 吉林大学 | Hot water core drill used at glacier |
| CN106014202B (en) * | 2016-07-25 | 2017-07-28 | 吉林大学 | A kind of hot water core bit used in glacier |
| CN106257265B (en) * | 2016-08-04 | 2018-11-27 | 吉林大学 | A kind of single action rotation Sampling driller for ocean gas hydrate exploration |
| CN106257265A (en) * | 2016-08-04 | 2016-12-28 | 吉林大学 | A kind of single action for ocean gas hydrate exploration rotates Sampling driller |
| US10337249B2 (en) | 2017-02-04 | 2019-07-02 | Jason A Hatfield | Drilling wells with air |
| CN106677707A (en) * | 2017-03-22 | 2017-05-17 | 吉林大学 | Air reverse circulation continuous coring ice drill bit |
| CN107035329A (en) * | 2017-05-27 | 2017-08-11 | 重庆泛嘉晟禾工程技术检测有限公司 | A kind of coal mine gas extraction borehole presses wind reacting cycle inward turning emitter |
| CN107630664B (en) * | 2017-10-31 | 2018-08-10 | 吉林大学 | A kind of warm ice sheet drilling ice auger drill bit |
| CN107630664A (en) * | 2017-10-31 | 2018-01-26 | 吉林大学 | A kind of warm ice sheet drilling uses ice auger drill bit |
| CN108625775A (en) * | 2018-07-09 | 2018-10-09 | 吉林大学 | A kind of revolution cutting type ice sheet hot melt drilling apparatus |
| CN108625775B (en) * | 2018-07-09 | 2023-09-15 | 吉林大学 | Rotary cutting type ice layer hot melting drilling device |
| CN108868595A (en) * | 2018-07-26 | 2018-11-23 | 吉林大学 | A kind of ice layer of polar region Air Reverse Circulation fast drilling system |
| CN108868595B (en) * | 2018-07-26 | 2019-03-12 | 吉林大学 | A kind of ice layer of polar region Air Reverse Circulation fast drilling system |
| CN109441384A (en) * | 2018-12-24 | 2019-03-08 | 吉林大学 | A kind of laser coring drilling method and drilling apparatus for ice sheet probing |
| CN109441384B (en) * | 2018-12-24 | 2024-01-12 | 吉林大学 | Laser coring drilling method and device for ice layer drilling |
| CN109930994A (en) * | 2019-04-15 | 2019-06-25 | 浙江华东建设工程有限公司 | Continuous sampling reverse circulation drill bit, continuous sampling device and continuous sampling method |
| CN109930994B (en) * | 2019-04-15 | 2024-05-24 | 浙江华东建设工程有限公司 | Continuous coring reverse circulation drill bit, continuous coring device and continuous coring method |
| CN111677469B (en) * | 2020-06-15 | 2022-03-15 | 中煤科工集团西安研究院有限公司 | Negative pressure suction short circuit for nearly horizontal drilling air reverse circulation drilling tool |
| CN111677469A (en) * | 2020-06-15 | 2020-09-18 | 中煤科工集团西安研究院有限公司 | Negative pressure suction short circuit for nearly horizontal drilling air reverse circulation drilling tool |
| CN113309472A (en) * | 2021-07-02 | 2021-08-27 | 重庆大学 | Three-channel reverse circulation drill bit |
| CN114109288A (en) * | 2021-12-02 | 2022-03-01 | 吉林大学 | Pneumatic drive rapid coring drilling tool for polar ice layer |
| CN114109288B (en) * | 2021-12-02 | 2023-08-22 | 吉林大学 | Pneumatic driving quick coring drilling tool for polar region ice layer |
| CN114991674A (en) * | 2022-06-22 | 2022-09-02 | 中国电建集团华东勘测设计研究院有限公司 | A automatic drilling tool that takes a sample of fast assembly for frozen soil layer exploration |
| CN114991674B (en) * | 2022-06-22 | 2023-08-29 | 中国电建集团华东勘测设计研究院有限公司 | A automatic sampling drilling tool of fast assembly for frozen soil layer exploration |
| CN115234186A (en) * | 2022-08-12 | 2022-10-25 | 中国铁建重工集团股份有限公司 | Combined core drilling machine and working method thereof |
| CN115234186B (en) * | 2022-08-12 | 2024-02-27 | 中国铁建重工集团股份有限公司 | Combined coring drilling machine and working method thereof |
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Application publication date: 20131120 |