EP0225082A3 - Improvements in or relating to rotary drill bits - Google Patents
Improvements in or relating to rotary drill bitsInfo
- Publication number
- EP0225082A3 EP0225082A3 EP86308791A EP86308791A EP0225082A3 EP 0225082 A3 EP0225082 A3 EP 0225082A3 EP 86308791 A EP86308791 A EP 86308791A EP 86308791 A EP86308791 A EP 86308791A EP 0225082 A3 EP0225082 A3 EP 0225082A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- bit
- nozzles
- nozzle
- bit body
- drilling fluid
- 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.)
- Withdrawn
Links
- 238000005553 drilling Methods 0.000 abstract 3
- 239000012530 fluid Substances 0.000 abstract 3
- 230000015572 biosynthetic process Effects 0.000 abstract 2
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
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
- E21B10/61—Drill bits characterised by conduits or nozzles for drilling fluids characterised by the nozzle structure
-
- 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
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
- E21B10/602—Drill bits characterised by conduits or nozzles for drilling fluids the bit being a rotary drag type bit with blades
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8528299 | 1985-11-16 | ||
GB858528299A GB8528299D0 (en) | 1985-11-16 | 1985-11-16 | Rotary drill bits |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0225082A2 EP0225082A2 (en) | 1987-06-10 |
EP0225082A3 true EP0225082A3 (en) | 1988-07-27 |
Family
ID=10588345
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86308791A Withdrawn EP0225082A3 (en) | 1985-11-16 | 1986-11-12 | Improvements in or relating to rotary drill bits |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0225082A3 (en) |
GB (2) | GB8528299D0 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4981184A (en) * | 1988-11-21 | 1991-01-01 | Smith International, Inc. | Diamond drag bit for soft formations |
US5314033A (en) * | 1992-02-18 | 1994-05-24 | Baker Hughes Incorporated | Drill bit having combined positive and negative or neutral rake cutters |
US5363932A (en) * | 1993-05-10 | 1994-11-15 | Smith International, Inc. | PDC drag bit with improved hydraulics |
US5794725A (en) * | 1996-04-12 | 1998-08-18 | Baker Hughes Incorporated | Drill bits with enhanced hydraulic flow characteristics |
FR2756002B1 (en) * | 1996-11-20 | 1999-04-02 | Total Sa | BLADE DRILLING TOOL WITH RESERVE SIZES AND CUT-OUT DRAIN CHANNELS |
US6302223B1 (en) | 1999-10-06 | 2001-10-16 | Baker Hughes Incorporated | Rotary drag bit with enhanced hydraulic and stabilization characteristics |
WO2012051648A1 (en) * | 2010-10-19 | 2012-04-26 | Drilling Tools Australia Pty Ltd | A drill bit |
CN113404439A (en) * | 2021-06-11 | 2021-09-17 | 东北石油大学 | Particle percussion drill bit |
CN117046890B (en) * | 2023-09-11 | 2024-02-13 | 滨州市生态环境服务中心 | Method for in-situ remediation of phosphorus contaminated soil |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3112803A (en) * | 1962-01-02 | 1963-12-03 | Jersey Prod Res Co | Diamond drill bit |
EP0043609A1 (en) * | 1980-07-04 | 1982-01-13 | Shell Internationale Researchmaatschappij B.V. | Rotary bit with jet nozzles |
US4499958A (en) * | 1983-04-29 | 1985-02-19 | Strata Bit Corporation | Drag blade bit with diamond cutting elements |
EP0140676A2 (en) * | 1983-10-29 | 1985-05-08 | Reed Tool Company Limited | Improvements in or relating to rotary drill bits |
EP0146252A2 (en) * | 1983-11-08 | 1985-06-26 | Flow Industries Inc. | Leak-proof, high pressure, high velocity, fluid jet cutting nozzle assembly |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4098363A (en) * | 1977-04-25 | 1978-07-04 | Christensen, Inc. | Diamond drilling bit for soft and medium hard formations |
FR2566833B1 (en) * | 1984-06-27 | 1986-11-14 | Inst Francais Du Petrole | METHOD AND IMPROVEMENT IN DRILLING TOOLS COMPRISING WATER PASSAGES ENABLING A HIGH EFFICIENCY IN CLEANING THE SIZE FRONT |
GB8418481D0 (en) * | 1984-07-19 | 1984-08-22 | Nl Petroleum Prod | Rotary drill bits |
-
1985
- 1985-11-16 GB GB858528299A patent/GB8528299D0/en active Pending
-
1986
- 1986-11-12 GB GB08627050A patent/GB2183693A/en not_active Withdrawn
- 1986-11-12 EP EP86308791A patent/EP0225082A3/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3112803A (en) * | 1962-01-02 | 1963-12-03 | Jersey Prod Res Co | Diamond drill bit |
EP0043609A1 (en) * | 1980-07-04 | 1982-01-13 | Shell Internationale Researchmaatschappij B.V. | Rotary bit with jet nozzles |
US4499958A (en) * | 1983-04-29 | 1985-02-19 | Strata Bit Corporation | Drag blade bit with diamond cutting elements |
EP0140676A2 (en) * | 1983-10-29 | 1985-05-08 | Reed Tool Company Limited | Improvements in or relating to rotary drill bits |
EP0146252A2 (en) * | 1983-11-08 | 1985-06-26 | Flow Industries Inc. | Leak-proof, high pressure, high velocity, fluid jet cutting nozzle assembly |
Also Published As
Publication number | Publication date |
---|---|
EP0225082A2 (en) | 1987-06-10 |
GB8627050D0 (en) | 1986-12-10 |
GB2183693A (en) | 1987-06-10 |
GB8528299D0 (en) | 1985-12-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4239087A (en) | Drill bit with suction jet means | |
US4429755A (en) | Drill with polycrystalline diamond drill blanks for soft, medium-hard and hard formations | |
EP0269400A3 (en) | Improvements in or relating to rotary drill bits | |
US6450270B1 (en) | Rotary cone bit for cutting removal | |
SU1017174A3 (en) | Rolling cutter drill bit | |
US4991667A (en) | Hydraulic drilling apparatus and method | |
US4545441A (en) | Drill bits with polycrystalline diamond cutting elements mounted on serrated supports pressed in drill head | |
EP0295045A3 (en) | Rotary drag bit having scouring nozzles | |
US4246977A (en) | Diamond studded insert drag bit with strategically located hydraulic passages for mud motors | |
US4739845A (en) | Nozzle for rotary bit | |
US5115873A (en) | Method and appartus for directing drilling fluid to the cutting edge of a cutter | |
US4533005A (en) | Adjustable nozzle | |
US4723612A (en) | Bit, nozzle, cutter combination | |
CA2017533A1 (en) | Drill bit having improved hydraulic action for directing drilling fluid | |
EP0284238A3 (en) | Drag drill bit with drilling fluid nozzles | |
EP0225082A3 (en) | Improvements in or relating to rotary drill bits | |
CA2173313A1 (en) | Rock bit nozzle diffuser | |
CA2467003A1 (en) | Fluid drilling head | |
CA2048398A1 (en) | Hydraulic action for rotary drill bits | |
US4540056A (en) | Cutter assembly | |
IE851725L (en) | Oxadiazolyl imidazobenzodiazepines | |
EP0187637A3 (en) | A rotary head | |
EP0484473B1 (en) | Drill head with nozzles | |
US4911729A (en) | Overburden eliminator rock drill bit | |
US4886131A (en) | Inclined-jet drilling tool |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): BE CH DE FR LI NL SE |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): BE CH DE FR LI NL SE |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19890128 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: FULLER, JOHN Inventor name: COMBER, PETER JOHN |