CA857170A - Double walled concentric drill pipe - Google Patents
Double walled concentric drill pipeInfo
- Publication number
- CA857170A CA857170A CA857170A CA857170DA CA857170A CA 857170 A CA857170 A CA 857170A CA 857170 A CA857170 A CA 857170A CA 857170D A CA857170D A CA 857170DA CA 857170 A CA857170 A CA 857170A
- Authority
- CA
- Canada
- Prior art keywords
- drill pipe
- double walled
- concentric drill
- walled concentric
- double
- 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
Links
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA857170T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA857170A true CA857170A (en) | 1970-12-01 |
Family
ID=36342688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA857170A Expired CA857170A (en) | Double walled concentric drill pipe |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA857170A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4385668A (en) * | 1981-02-25 | 1983-05-31 | Turbo Resources Ltd. | Inner pipe support arrangement for double-walled drill pipe |
-
0
- CA CA857170A patent/CA857170A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4385668A (en) * | 1981-02-25 | 1983-05-31 | Turbo Resources Ltd. | Inner pipe support arrangement for double-walled drill pipe |
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