JPS57501388A - - Google Patents
Info
- Publication number
- JPS57501388A JPS57501388A JP56503148A JP50314881A JPS57501388A JP S57501388 A JPS57501388 A JP S57501388A JP 56503148 A JP56503148 A JP 56503148A JP 50314881 A JP50314881 A JP 50314881A JP S57501388 A JPS57501388 A JP S57501388A
- Authority
- JP
- Japan
- 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.)
- Pending
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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/003—Bearing, sealing, lubricating details
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 (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/187,011 US4577704A (en) | 1980-09-15 | 1980-09-15 | Bearing system for a downhole motor |
| US06/192,280 US4361194A (en) | 1980-09-30 | 1980-09-30 | Bearing system for a downhole motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57501388A true JPS57501388A (OSRAM) | 1982-08-05 |
Family
ID=26882644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56503148A Pending JPS57501388A (OSRAM) | 1980-09-15 | 1981-09-10 |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS57501388A (OSRAM) |
| DE (1) | DE3132137A1 (OSRAM) |
| FR (1) | FR2490299A1 (OSRAM) |
| GB (1) | GB2083525B (OSRAM) |
| NL (1) | NL8104210A (OSRAM) |
| WO (1) | WO1982001029A1 (OSRAM) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011091500A1 (en) * | 2010-01-28 | 2011-08-04 | Halliburton Energy Services, Inc. | Bearing assembly |
| US10017992B2 (en) * | 2016-11-04 | 2018-07-10 | Ashmin Holding Llc | Radial ball bearing and method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2990894A (en) * | 1958-10-20 | 1961-07-04 | Joseph A Mitchell | Turbodrill |
| US3456746A (en) * | 1967-12-12 | 1969-07-22 | Smith International | Flow restricting and metering radial bearing for drilling tools |
| FR2040896A5 (OSRAM) * | 1969-04-25 | 1971-01-22 | Alsthom | |
| US3807513A (en) * | 1973-02-05 | 1974-04-30 | Atlantic Richfield Co | Downhole drilling tool bearing and seal assembly |
| US3879094A (en) * | 1973-08-15 | 1975-04-22 | Smith International | Radial Bearings |
| US3971450A (en) * | 1975-01-31 | 1976-07-27 | Engineering Enterprises, Inc. | Well drilling tool |
| US4260031A (en) * | 1979-09-14 | 1981-04-07 | Dresser Industries, Inc. | Solids diverter for a downhole drilling motor |
-
1981
- 1981-08-14 DE DE19813132137 patent/DE3132137A1/de not_active Withdrawn
- 1981-08-14 GB GB8124853A patent/GB2083525B/en not_active Expired
- 1981-09-10 WO PCT/US1981/001232 patent/WO1982001029A1/en not_active Ceased
- 1981-09-10 JP JP56503148A patent/JPS57501388A/ja active Pending
- 1981-09-11 NL NL8104210A patent/NL8104210A/nl not_active Application Discontinuation
- 1981-09-15 FR FR8117418A patent/FR2490299A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE3132137A1 (de) | 1982-04-08 |
| GB2083525B (en) | 1984-05-02 |
| WO1982001029A1 (en) | 1982-04-01 |
| NL8104210A (nl) | 1982-04-01 |
| FR2490299B1 (OSRAM) | 1984-12-28 |
| GB2083525A (en) | 1982-03-24 |
| FR2490299A1 (fr) | 1982-03-19 |