Filter for subterranean use

US6006829A · kind A · utility

Assignee

• Oiltools International B.V. · NL

Inventors

• Michael B. Whitlock · Cortland, US
• Stephen A. Geibel · Cortland, US
• John D. Miller · Arvada, US
• Steven L. Mills · Cortland, US
• Mark F. Hurwitz · Ithaca, US
• Kenneth M. Williamson · Jamesville, US
• Tanweer Haq · Tully, US

Key dates

• Filing date: Jun 6, 1997
• Grant date: Dec 28, 1999
• Expiry date: Jun 6, 2017

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D29/58
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A filter capable of being used in subterranean environments includes a filter medium. An erosion barrier is disposed along a common flow path with the filter medium for preventing erosion by particles in a fluid being filtered.