Downhole burner systems and methods for heating subsurface formations

US7950453B2 · kind B2 · utility

Assignee

• SHELL OIL COMPNY · US

Inventors

• Walter Farman Farmayan · Houston, US
• Steven Paul Giles · Damon, US
• Joseph Phillip Brignac, Jr. · Katy, US
• Abdul Wahid Munshi · Houston, US
• Faraz Abbasi · Saginaw, US
• Lloyd Anthony Clomburg, Jr. · Houston, US
• Karl Gregory Anderson · Missouri City, US
• Kuochen Tsai · Katy, US
• Mark A. Siddoway · Katy, US

Key dates

• Filing date: Apr 18, 2008
• Grant date: May 31, 2011
• Expiry date: Apr 28, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49083
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A gas burner assembly for heating a subsurface formation includes an oxidant conduit, a fuel conduit, and a plurality of oxidizers coupled to the oxidant conduit. At least one of the oxidizers includes a mix chamber for mixing fuel from the fuel conduit with oxidant from the oxidant conduit, an igniter, and a shield. The shield includes a plurality of openings in communication with the oxidant conduit. At least one flame stabilizer is coupled to the shield.