Cavity well positioning system and method
US6454000B1 · kind B1 · utility
73Cited by
139References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 24, 2000 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Oct 24, 2020 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/09
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A subterranean cavity positioning system includes a down-hole device and a cavity positioning device rotatably coupled to a well portion of the down-hole device. The cavity positioning device includes a counterbalance portion operable to automatically rotate the cavity positioning device from a retracted position to an extended position as the cavity positioning device transitions from a well bore into the subterranean cavity. The counterbalance portion is also operable to align the cavity positioning device with the well bore as the down-hole device is withdrawn from the subterranean cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.