Automatic downhole jetting system
US10352132B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Oct 18, 2016 |
| Grant date | Jul 16, 2019 |
| Priority date | — |
| Expiry date | Aug 1, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B34/14
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An automatic downhole jetting system for advancing a string and automatically operating a valve mechanism upon contact with a restriction in a wellbore. A jetting unit receives a working fluid, and an activation unit slidably engaged with the jetting unit. The jetting unit includes the valve mechanism for controlling fluid flow out through angled jet ports or through the activation unit. The activation unit can move toward the jetting unit upon contact with a restriction in the wellbore. The activation unit activates the valve mechanism, thereby allowing fluid to flow past the activation unit to remove the restriction. Upon removal of the restriction, the fluid flow deactivates the valve mechanism, thereby closing fluid flow past the activation unit and continuing jetting operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.