GB2355747B - Journal bearing for earth-boring bit - Google Patents
Journal bearing for earth-boring bitInfo
- Publication number
- GB2355747B GB2355747B GB0026687A GB0026687A GB2355747B GB 2355747 B GB2355747 B GB 2355747B GB 0026687 A GB0026687 A GB 0026687A GB 0026687 A GB0026687 A GB 0026687A GB 2355747 B GB2355747 B GB 2355747B
- Authority
- GB
- United Kingdom
- Prior art keywords
- earth
- journal bearing
- boring bit
- boring
- bit
- 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
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
- E21B10/00—Drill bits
- E21B10/08—Roller bits
- E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
- E21B10/24—Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating details
-
- 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
- E21B10/00—Drill bits
- E21B10/08—Roller bits
- E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
- E21B10/24—Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating details
- E21B10/246—Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating details with pumping means for feeding lubricant
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US43091699A | 1999-11-01 | 1999-11-01 |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0026687D0 GB0026687D0 (en) | 2000-12-20 |
GB2355747A GB2355747A (en) | 2001-05-02 |
GB2355747B true GB2355747B (en) | 2001-12-12 |
Family
ID=23709632
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0026687A Expired - Fee Related GB2355747B (en) | 1999-11-01 | 2000-11-01 | Journal bearing for earth-boring bit |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB2355747B (en) |
IT (1) | IT1321039B1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7128171B2 (en) | 2004-02-23 | 2006-10-31 | Baker Hughes Incorporated | Hydrodynamic pump passages for rolling cone drill bit |
US8534389B2 (en) * | 2011-01-28 | 2013-09-17 | Varel International, Ind., L.P. | Method and apparatus for reducing lubricant pressure pulsation within a rotary cone rock bit |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1767150A1 (en) * | 1989-12-14 | 1992-10-07 | Специальное Конструкторское Бюро Научно-Производственного Объединения "Геотехника" | Rolling cutter drilling bit |
US5265964A (en) * | 1990-03-02 | 1993-11-30 | Smith International, Inc. | Lubricant system for a rotary cone rock bit |
US5593231A (en) * | 1995-01-17 | 1997-01-14 | Dresser Industries, Inc. | Hydrodynamic bearing |
GB2326894A (en) * | 1997-07-01 | 1999-01-06 | Smith International | Rotary cone rock bit with bearing fluid reservoir |
-
2000
- 2000-11-01 GB GB0026687A patent/GB2355747B/en not_active Expired - Fee Related
- 2000-11-02 IT IT2000TO001036A patent/IT1321039B1/en active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1767150A1 (en) * | 1989-12-14 | 1992-10-07 | Специальное Конструкторское Бюро Научно-Производственного Объединения "Геотехника" | Rolling cutter drilling bit |
US5265964A (en) * | 1990-03-02 | 1993-11-30 | Smith International, Inc. | Lubricant system for a rotary cone rock bit |
US5593231A (en) * | 1995-01-17 | 1997-01-14 | Dresser Industries, Inc. | Hydrodynamic bearing |
GB2326894A (en) * | 1997-07-01 | 1999-01-06 | Smith International | Rotary cone rock bit with bearing fluid reservoir |
Also Published As
Publication number | Publication date |
---|---|
GB2355747A (en) | 2001-05-02 |
ITTO20001036A0 (en) | 2000-11-02 |
GB0026687D0 (en) | 2000-12-20 |
IT1321039B1 (en) | 2003-12-30 |
ITTO20001036A1 (en) | 2002-05-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20041101 |