GB2395971B - Maintaining relative pressure between roller cone lubricant and drilling fluids - Google Patents
Maintaining relative pressure between roller cone lubricant and drilling fluidsInfo
- Publication number
- GB2395971B GB2395971B GB0404411A GB0404411A GB2395971B GB 2395971 B GB2395971 B GB 2395971B GB 0404411 A GB0404411 A GB 0404411A GB 0404411 A GB0404411 A GB 0404411A GB 2395971 B GB2395971 B GB 2395971B
- Authority
- GB
- United Kingdom
- Prior art keywords
- lubricant
- drilling fluids
- relative pressure
- roller cone
- maintaining relative
- 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
- 238000005553 drilling Methods 0.000 title 1
- 239000012530 fluid Substances 0.000 title 1
- 239000000314 lubricant Substances 0.000 title 1
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
- E21B12/00—Accessories for drilling tools
- E21B12/02—Wear indicators
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/10—Locating fluid leaks, intrusions or movements
- E21B47/117—Detecting leaks, e.g. from tubing, by pressure testing
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Geophysics (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US32624201P | 2001-10-01 | 2001-10-01 | |
US10/079,919 US6698536B2 (en) | 2001-10-01 | 2002-02-20 | Roller cone drill bit having lubrication contamination detector and lubrication positive pressure maintenance system |
GB0222266A GB2380212B (en) | 2001-10-01 | 2002-09-25 | Roller cone drill bit having a lubrication contamination detector |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0404411D0 GB0404411D0 (en) | 2004-03-31 |
GB2395971A GB2395971A (en) | 2004-06-09 |
GB2395971B true GB2395971B (en) | 2004-09-08 |
Family
ID=32302996
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0404411A Expired - Fee Related GB2395971B (en) | 2001-10-01 | 2002-09-25 | Maintaining relative pressure between roller cone lubricant and drilling fluids |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2395971B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8100196B2 (en) | 2005-06-07 | 2012-01-24 | Baker Hughes Incorporated | Method and apparatus for collecting drill bit performance data |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7849934B2 (en) * | 2005-06-07 | 2010-12-14 | Baker Hughes Incorporated | Method and apparatus for collecting drill bit performance data |
US8376065B2 (en) | 2005-06-07 | 2013-02-19 | Baker Hughes Incorporated | Monitoring drilling performance in a sub-based unit |
US7604072B2 (en) * | 2005-06-07 | 2009-10-20 | Baker Hughes Incorporated | Method and apparatus for collecting drill bit performance data |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6230822B1 (en) * | 1995-02-16 | 2001-05-15 | Baker Hughes Incorporated | Method and apparatus for monitoring and recording of the operating condition of a downhole drill bit during drilling operations |
GB2368360A (en) * | 2000-10-27 | 2002-05-01 | Baker Hughes Inc | System for monitoring a roller cone drill bit |
-
2002
- 2002-09-25 GB GB0404411A patent/GB2395971B/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6230822B1 (en) * | 1995-02-16 | 2001-05-15 | Baker Hughes Incorporated | Method and apparatus for monitoring and recording of the operating condition of a downhole drill bit during drilling operations |
GB2368360A (en) * | 2000-10-27 | 2002-05-01 | Baker Hughes Inc | System for monitoring a roller cone drill bit |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8100196B2 (en) | 2005-06-07 | 2012-01-24 | Baker Hughes Incorporated | Method and apparatus for collecting drill bit performance data |
Also Published As
Publication number | Publication date |
---|---|
GB2395971A (en) | 2004-06-09 |
GB0404411D0 (en) | 2004-03-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20150925 |