CA2021391A1 - Compensating ring for a down hole hammer - Google Patents
Compensating ring for a down hole hammerInfo
- Publication number
- CA2021391A1 CA2021391A1 CA 2021391 CA2021391A CA2021391A1 CA 2021391 A1 CA2021391 A1 CA 2021391A1 CA 2021391 CA2021391 CA 2021391 CA 2021391 A CA2021391 A CA 2021391A CA 2021391 A1 CA2021391 A1 CA 2021391A1
- Authority
- CA
- Canada
- Prior art keywords
- compensating ring
- down hole
- hole hammer
- outer sleeve
- drill bit
- 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
Landscapes
- Earth Drilling (AREA)
Abstract
The present invention relates to a sacrificial compensating ring for a down hole hammer having an outer sleeve, a drive pub and a drill bit, wherein the sacrificial compensating ring has an outer diameter greater than that of the outer sleeve and substantially the same as that of the drill bit and the sacrificial compensating ring being located between the outer sleeve and the drive sub.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA 2021391 CA2021391C (en) | 1990-07-17 | 1990-07-17 | Compensating ring for a down hole hammer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA 2021391 CA2021391C (en) | 1990-07-17 | 1990-07-17 | Compensating ring for a down hole hammer |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2021391A1 true CA2021391A1 (en) | 1992-01-18 |
CA2021391C CA2021391C (en) | 2004-03-30 |
Family
ID=4145506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2021391 Expired - Lifetime CA2021391C (en) | 1990-07-17 | 1990-07-17 | Compensating ring for a down hole hammer |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2021391C (en) |
-
1990
- 1990-07-17 CA CA 2021391 patent/CA2021391C/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2021391C (en) | 2004-03-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |