DE2918150A1 - Zentriereinrichtung fuer bohrlochmessgeraete - Google Patents
Zentriereinrichtung fuer bohrlochmessgeraeteInfo
- Publication number
- DE2918150A1 DE2918150A1 DE19792918150 DE2918150A DE2918150A1 DE 2918150 A1 DE2918150 A1 DE 2918150A1 DE 19792918150 DE19792918150 DE 19792918150 DE 2918150 A DE2918150 A DE 2918150A DE 2918150 A1 DE2918150 A1 DE 2918150A1
- Authority
- DE
- Germany
- Prior art keywords
- appts
- centering
- groups
- electric
- bolts
- 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.)
- Granted
Links
- 238000005259 measurement Methods 0.000 abstract 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
- E21B47/00—Survey of boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F9/00—Devices preventing sparking of machines or apparatus
-
- 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
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1014—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well
-
- 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
- E21B47/002—Survey of boreholes or wells by visual inspection
-
- 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
- E21B47/02—Determining slope or direction
- E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geophysics (AREA)
- Mechanical Engineering (AREA)
- Geophysics And Detection Of Objects (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Earth Drilling (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2918150A DE2918150C2 (de) | 1979-05-05 | 1979-05-05 | Zentriereinrichtung für ein Bohrlochmeßgerät |
CA331,601A CA1124508A (en) | 1978-07-15 | 1979-07-11 | Borehole surveying instrument |
FR7918243A FR2431023A1 (fr) | 1978-07-15 | 1979-07-13 | Installation de mesure pour trou de forage |
GB7924729A GB2029963B (en) | 1978-07-15 | 1979-07-16 | Device for borehole surveying |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2918150A DE2918150C2 (de) | 1979-05-05 | 1979-05-05 | Zentriereinrichtung für ein Bohrlochmeßgerät |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2918150A1 true DE2918150A1 (de) | 1980-11-13 |
DE2918150C2 DE2918150C2 (de) | 1982-07-22 |
Family
ID=6070006
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2918150A Expired DE2918150C2 (de) | 1978-07-15 | 1979-05-05 | Zentriereinrichtung für ein Bohrlochmeßgerät |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2918150C2 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3400834C1 (de) * | 1984-01-12 | 1985-02-28 | Kernforschungsanlage Jülich GmbH, 5170 Jülich | Messgeraet zur Bestimmung des Profils von Gesteinsbohrloechern |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE209526C (de) * | 1907-04-16 | |||
US2651199A (en) * | 1946-08-02 | 1953-09-08 | Eastman Oil Well Survey Co | Protective guide device for well instruments |
US2819537A (en) * | 1954-04-30 | 1958-01-14 | Oscar O Collins | Drift indicator |
US3762473A (en) * | 1972-07-25 | 1973-10-02 | Dresser Ind | Well instrument positioning device |
-
1979
- 1979-05-05 DE DE2918150A patent/DE2918150C2/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2918150C2 (de) | 1982-07-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OAP | Request for examination filed | ||
OD | Request for examination | ||
D2 | Grant after examination | ||
8339 | Ceased/non-payment of the annual fee |