CN203822167U - Ice layer and ice-rock sandwich polycrystalline diamond compact (PDC) coring bit - Google Patents
Ice layer and ice-rock sandwich polycrystalline diamond compact (PDC) coring bit Download PDFInfo
- Publication number
- CN203822167U CN203822167U CN201420011912.4U CN201420011912U CN203822167U CN 203822167 U CN203822167 U CN 203822167U CN 201420011912 U CN201420011912 U CN 201420011912U CN 203822167 U CN203822167 U CN 203822167U
- Authority
- CN
- China
- Prior art keywords
- ice
- pdc
- rock
- lugs
- cutting element
- 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.)
- Expired - Fee Related
Links
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses an ice layer and ice-rock sandwich polycrystalline diamond compact (PDC) coring bit, wherein a plurality of lugs are arranged on the lower end of a bit body, water mouths are arranged between adjacent lugs, PDC cutters are fixed on the lower ends of the lugs, adjusting screws are arranged on the lugs which are arranged on the rear ends of the PDC cutters, retroverted surfaces are arranged on the front ends of the PDC cutters, the dip angles are 5-10 degrees, the bottom surfaces of the PDC cutters are updip surfaces, the updip angles are 5-15 degrees, and the adjusting screws are screwed on the lugs. The ice layer and ice-rock sandwich PDC coring bit has the beneficial effects that the ice layer and ice-rock sandwich PDC coring bit completely can drill in complicated geological conditions such as polar ice sheets and ice-rock interfaces on the bottoms of continental glaciers, can rapidly core and drill in ice layers, and also can effectively drill the ice-rock interfaces and rocks below ice layers.
Description
Technical field
The utility model patent relates to a kind of core bit, particularly relates to a kind of ice sheet and ice-rock interlayer PDC core bit.
Background technology
At present, polar ice sheet and aqualite interface, continental glacier bottom complex geologic conditions, the till stratum that aqualite intersection exists thickness not wait.Because the content of ice in till is high, conventional geology core drilling drill bit is difficult to effectively creep into because cutting edge is more blunt.Simultaneously, again owing to being wrapped in a large amount of rock particless in till, diameter is large, hardness is high, easily there is tipping accident because cutting element is too sharp in common ice drill bit, be difficult to meet core drilling requirement, in existing core drilling utensil, also do not have to meet the core bit that creeps into ice sheet and aqualite interlayer simultaneously.
Summary of the invention
The purpose of this utility model is to drill in order to solve under the complex geological condition of aqualite interface, polar ice sheet and continental glacier bottom, and common drill bit cannot meet the requirements of problem and a kind of ice sheet and the ice-rock interlayer PDC core bit that provide.
A kind of ice sheet described in the utility model and ice-rock interlayer PDC core bit, to be provided with several projections in the lower end of drill body, between adjacent projections, offer the mouth of a river, the lower end of each projection is all fixed with PDC cutting element, and the rear end of PDC cutting element is provided with adjustment screw on projection.
The front end of PDC cutting element is a hypsokinesis face, and inclination alpha is 5-10 °, and the bottom surface of PDC cutting element is a updip face, and top rade β is 5-15 °.
Adjusting screw is screwed onto on projection.
Operating principle of the present utility model:
The lower end of drill body is provided with several projections, PDC cutting element is fixed on projection, and between adjacent projections, offers the larger mouth of a river, makes the complete exposure of PDC cutting element, will be conducive to so successfully discharge ice bits.The Front-end Design of PDC cutting element is hypsokinesis face, the bottom surface of PDC cutting element is designed to updip face, adjust screw and be screwed onto on projection, can be according to the adjustment screw that need to change respective thickness of cutting ice layer thickness, avoid PDC cutting element incision ice sheet to cross moment of torsion dark and that generation is larger.
The beneficial effects of the utility model:
Use drill bit described in the utility model, can under the complex geological condition of aqualite interface, polar ice sheet and continental glacier bottom, drill completely, this drill bit can core-drilling fast in ice sheet, can effectively creep into again aqualite interlayer and subglacial rock stratum.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model upward view.
Fig. 3 is PDC cutting element structural representation.
1, drill body 2, projection 3, the mouth of a river 4, PDC cutting element 5, adjustment screw.
Detailed description of the invention
Refer to shown in Fig. 1, Fig. 2 and Fig. 3:
A kind of ice sheet described in the utility model and ice-rock interlayer PDC core bit, to be provided with four projections 2 in the lower end of drill body 1, between adjacent projections 2, offer the mouth of a river 3, the lower end of each projection 2 is all fixed with PDC cutting element 4, and the rear end of PDC cutting element 4 is provided with on projection 2 adjusts screw 5.
The front end of PDC cutting element 4 is a hypsokinesis face, and inclination alpha is 5-10 °, and the bottom surface of PDC cutting element 4 is a updip face, and top rade β is 5-15 °.
Adjusting screw 5 is screwed onto on projection 2.
Operating principle of the present utility model:
The lower end of drill body 1 is provided with four projections 2, PDC cutting element 4 is fixed on projection 2, and offers the larger mouth of a river 3 between adjacent projections 2, makes the complete exposure of PDC cutting element 4, will be conducive to so successfully discharge ice bits.The Front-end Design of PDC cutting element 4 is hypsokinesis face, the bottom surface of PDC cutting element 4 is designed to updip face, adjust screw 5 and be screwed onto on projection 2, can be according to the adjustment screw 5 that need to change respective thickness of cutting ice layer thickness, avoid PDC cutting element 4 to cut ice sheet and crossed moment of torsion dark and that generation is larger.
Claims (1)
1. an ice sheet and ice-rock interlayer PDC core bit, to be provided with several projections in the lower end of drill body, between adjacent projections, offer the mouth of a river, the lower end of each projection is all fixed with PDC cutting element, it is characterized in that: the rear end of PDC cutting element is provided with adjustment screw on projection, and the front end of PDC cutting element is a hypsokinesis face, inclination alpha is 5-10 °, the bottom surface of PDC cutting element is a updip face, and top rade β is 5-15 °, adjusts screw and is screwed onto on projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420011912.4U CN203822167U (en) | 2014-01-09 | 2014-01-09 | Ice layer and ice-rock sandwich polycrystalline diamond compact (PDC) coring bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420011912.4U CN203822167U (en) | 2014-01-09 | 2014-01-09 | Ice layer and ice-rock sandwich polycrystalline diamond compact (PDC) coring bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203822167U true CN203822167U (en) | 2014-09-10 |
Family
ID=51477680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420011912.4U Expired - Fee Related CN203822167U (en) | 2014-01-09 | 2014-01-09 | Ice layer and ice-rock sandwich polycrystalline diamond compact (PDC) coring bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203822167U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105507816A (en) * | 2016-02-03 | 2016-04-20 | 吉林大学 | Core-drilling type hard alloy drill bit for polar ice rock interlayer |
| CN107288551A (en) * | 2017-08-15 | 2017-10-24 | 吉林大学 | A kind of polar region deep ice layer drilling uses 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 |
-
2014
- 2014-01-09 CN CN201420011912.4U patent/CN203822167U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105507816A (en) * | 2016-02-03 | 2016-04-20 | 吉林大学 | Core-drilling type hard alloy drill bit for polar ice rock interlayer |
| CN107288551A (en) * | 2017-08-15 | 2017-10-24 | 吉林大学 | A kind of polar region deep ice layer drilling uses 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 |
| CN107630664B (en) * | 2017-10-31 | 2018-08-10 | 吉林大学 | A kind of warm ice sheet drilling ice auger drill bit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2533497A1 (en) | Pdc drill bit using optimized side rake angle | |
| CN203822167U (en) | Ice layer and ice-rock sandwich polycrystalline diamond compact (PDC) coring bit | |
| EA202190273A1 (en) | DIAMOND INSERT WITH MULTIPLE REDGES FOR DRILL BIT AND DRILL BIT | |
| WO2010121116A3 (en) | Fixed cutter bit for directional drilling applications | |
| WO2010141579A3 (en) | Cutting elements including cutting tables with shaped faces configured to provide continuous effective positive back rake angeles, drill bits so equipped and methods of drilling | |
| CN203905823U (en) | Polycrystalline diamond compact high in impact resistance for petroleum drill bit | |
| WO2008028131A3 (en) | Roller cone drill bits with improved fluid flow | |
| CN204098789U (en) | A kind of PDC drill bit being applicable to plastic formation | |
| CN206987739U (en) | A kind of PDC drill bit suitable for stiff plastic stratum | |
| CN202788630U (en) | Polycrystalline diamond compact (PDC) drill bit with sharp teeth | |
| CN211230252U (en) | Deep sea drilling directional PDC drill bit | |
| CN203430427U (en) | Steel body PDC bit | |
| WO2010019834A3 (en) | Bit cone with hardfaced nose | |
| CN201083627Y (en) | Primary coal sampling machine drill head | |
| CN108798529A (en) | A kind of PDC drill bit suitable for stiff plastic stratum | |
| CN203515332U (en) | PDC (polycrystalline diamond compact) drill bit for plastic strata | |
| CN202706923U (en) | Reinforced polycrystalline diamond compact (PDC) drill | |
| CN203891773U (en) | High performance six-blade polycrystalline diamond compact (PDC) bit | |
| CN204476287U (en) | Composite teeth | |
| CN201874473U (en) | Reducing drill bit | |
| CN203891774U (en) | Five-blade PDC (polycrystalline diamond compact) bit applicable to hard and soft interbedded stratum | |
| CN201338337Y (en) | Drill bit for ceramic tile | |
| CN208885192U (en) | A kind of drill bit that point knuckle-tooth wing is spaced apart | |
| CN203655166U (en) | PDC drill bit drilling fast | |
| CN104653113A (en) | Vertical tooth PDC (polycrystalline diamond compact) drill bit polycrystalline diamond clad sheet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20150109 |
|
| EXPY | Termination of patent right or utility model |