SG71290G - Downhole tool with liquid spring - Google Patents
Downhole tool with liquid springInfo
- Publication number
- SG71290G SG71290G SG71290A SG71290A SG71290G SG 71290 G SG71290 G SG 71290G SG 71290 A SG71290 A SG 71290A SG 71290 A SG71290 A SG 71290A SG 71290 G SG71290 G SG 71290G
- Authority
- SG
- Singapore
- Prior art keywords
- downhole tool
- liquid spring
- spring
- liquid
- downhole
- Prior art date
Links
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/354,529 US4444268A (en) | 1982-03-04 | 1982-03-04 | Tester valve with silicone liquid spring |
US06/417,947 US4448254A (en) | 1982-03-04 | 1982-09-14 | Tester valve with silicone liquid spring |
EP83300882A EP0088550B1 (en) | 1982-03-04 | 1983-02-21 | Tester valve with liquid spring |
Publications (1)
Publication Number | Publication Date |
---|---|
SG71290G true SG71290G (en) | 1990-10-26 |
Family
ID=27226330
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG71290A SG71290G (en) | 1982-03-04 | 1990-08-30 | Downhole tool with liquid spring |
Country Status (1)
Country | Link |
---|---|
SG (1) | SG71290G (en) |
-
1990
- 1990-08-30 SG SG71290A patent/SG71290G/en unknown
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0187690A3 (en) | Downhole tool with liquid spring | |
GB2129033B (en) | Subsurface well valve | |
IL66456A (en) | Drilling device | |
GB2095723B (en) | Well tool | |
DE3371664D1 (en) | Well tool | |
GB2108622B (en) | Tool mountings | |
SG111192G (en) | Downhole tool with compressible liquid spring chamber | |
GB8329327D0 (en) | Drilling fluids | |
DE3260006D1 (en) | Honing tool | |
GB8326964D0 (en) | Downhole tool | |
GB2128659B (en) | Drilling fluids | |
GB2103685B (en) | Kickover tool | |
GB2119426B (en) | Well tools | |
GB8324459D0 (en) | Subterranean well tool | |
GB2114479B (en) | Drilling tool | |
GB2115039B (en) | Kickover tool | |
GB8304529D0 (en) | Drilling fluids | |
GB2090623B (en) | Well tool | |
GB8326103D0 (en) | Drilling tools | |
GB8304531D0 (en) | Drilling fluids | |
GB2125855B (en) | Well tool | |
GB2104938B (en) | Well tool | |
SG71290G (en) | Downhole tool with liquid spring | |
GB8312108D0 (en) | Oil wells | |
GB2133059B (en) | Drilling tools |