FR2098174B1 - - Google Patents
Info
- Publication number
- FR2098174B1 FR2098174B1 FR7124523A FR7124523A FR2098174B1 FR 2098174 B1 FR2098174 B1 FR 2098174B1 FR 7124523 A FR7124523 A FR 7124523A FR 7124523 A FR7124523 A FR 7124523A FR 2098174 B1 FR2098174 B1 FR 2098174B1
- Authority
- FR
- France
- 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
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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/16—Drill collars
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 |
---|---|---|---|
US5240470A | 1970-07-06 | 1970-07-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2098174A1 FR2098174A1 (en) | 1972-03-10 |
FR2098174B1 true FR2098174B1 (en) | 1975-02-07 |
Family
ID=21977400
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7124523A Granted FR2098174A1 (en) | 1970-07-06 | 1971-07-05 | Drilling pipe string - with increased flexibility |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2098174A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4460202A (en) * | 1980-11-26 | 1984-07-17 | Chance Glenn G | Intermediate weight drill string member |
US4811800A (en) * | 1987-10-22 | 1989-03-14 | Homco International Inc. | Flexible drill string member especially for use in directional drilling |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2676820A (en) * | 1951-09-24 | 1954-04-27 | Reed Roller Bit Co | Drill collar |
AT230307B (en) * | 1962-03-10 | 1963-12-10 | Schoeller Bleckmann Stahlwerke | Recessed drill collar for deep drilling |
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1971
- 1971-07-05 FR FR7124523A patent/FR2098174A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2098174A1 (en) | 1972-03-10 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse | ||
CD | Change of name or company name |