Downhole fast-acting shut-in valve system
US10066460B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Apr 13, 2012 |
| Grant date | Sep 4, 2018 |
| Priority date | — |
| Expiry date | Aug 19, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A shut-in valve tool for use in a well has a tool body defining a flow path for the flow of well fluid from outside the tool through the tool body to another part of the well. The tool has an inlet port defined in the tool body through which well fluid must flow to enter the flow path. The tool has a sliding valve member located within the tool body and moveable between a first position in which the inlet port is open, and a second position in which the inlet port is blocked. The tool has a supply of compressed fluid and an actuating mechanism which uses the compressed fluid for driving the sliding valve member from the first position to the second position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.