System and method for bleeding off pressure following servicing a well
US7451813B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 4, 2008 |
| Grant date | Nov 18, 2008 |
| Priority date | — |
| Expiry date | Mar 4, 2028 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A technique facilitates release of pressure from a well, and/or surface treating lines, via a bleed-off mechanism. The bleed-off mechanism is in fluid communication with a flow path extending from a wellhead valve or wellbore and designed for connection with a vacuum truck. The bleed-off mechanism can be opened to enable venting of trapped pressure from the wellbore and/or flow path. The bleed-off mechanism is also designed to contain any liquid that escapes during release of the trapped pressure. Once the pressure is relieved, the vacuum truck can be used to clean out fluid from the wellbore and/or surface treating lines without exposure to excess pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.