Wellstring assembly
US7296639B2 · kind B2 · utility
22Cited by
32References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2004 |
| Grant date | Nov 20, 2007 |
| Priority date | — |
| Expiry date | Dec 15, 2024 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B17/076
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A wellstring assembly comprising a tubular first wellstring part with a passageway; a second wellstring part co-operating with the first wellstring part; and a releasable wellstring-interconnecting means for selectively interconnecting the first and second wellstring parts; an auxiliary tool for manipulating the second wellstring part, which auxiliary tool can pass along the passageway in the first wellstring part to the second wellstring part, comprising a tool-connecting means for selectively connecting the auxiliary tool to the second wellstring part, and an operating means for operating the wellstring-interconnecting means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.