Apparatus for treating wells
USRE30070E · kind E · reissue
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1976 |
| Grant date | Aug 14, 1979 |
| Priority date | — |
| Expiry date | Oct 26, 1996 |
Classification
- Technology area (CPC —)General
Abstract
A method of and apparatus for treating wells to provide surface controlled subsurface safety systems in the wells, whether previously completed wells or newly completed wells. A method and apparatus is provided for installing receptacles in the well flow conductors below the surface for receiving surface controlled subsurface safety valves therein for controlling undesired flow from the well in the event of emergency, disaster or accident damaging the well surface flow controlling system or threatening the integrity thereof. Also, a method and apparatus is provided for installing a hanger for well flow conductors in the well casing below the surface for supporting the flow conductor or conductors in the well casing below the surface and then installing the receptacles in the well flow conductors below the surface for receiving surface controlled subsurface safety valves therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.