Vent-well system
US4741395A · kind A · utility
5Cited by
10References
7Claims
0Family size
Inventors
Key dates
| Filing date | Dec 8, 1986 |
| Grant date | May 3, 1988 |
| Priority date | — |
| Expiry date | Dec 8, 2006 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A capped oil or gas well comprising the top of the well casing disposed beneath the surface of the earth, a sealing on the top of the well casing, a frusto-conical collector constructed of upwardly converging walls over and surrounding the top of the well casing, and a conduit connected to and in fluid communication with the top of the frusto-conical collector extending to a point above the earth for discharging collected gases is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.