Wear-resistant separating device for removing sand and rock particles

US8662167B2 · kind B2 · utility

Assignees

• ESK Ceramics GmbH & Co. KG · DE
• MAERSK OLIE OG GAS A/S · DK

Inventors

• Stefanie Wildhack · Kempten, DE
• Armin Kayser · Kempten (Allgäu), DE
• Samuel F. Joly · Durach, DE
• Siegfried Müssig · Bad Nenndorf, DE
• Klaus Wahrmann · Winsen (Aller), DE
• Fabian Pöhling · Bochum, DE

Key dates

• Filing date: Mar 31, 2010
• Grant date: Mar 4, 2014
• Expiry date: Oct 1, 2030

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21B43/088
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

A separating device for removing sand and rock particles, and is an integral component of extraction equipment for extraction of liquids or gases from deep wells, having at least one ceramic filter module comprising: an annular stack of annular discs, the upper side of which has at least three elevations uniformly distributed over the circumference of the discs, the discs are stacked such that a separating gap for the removal of sand and rock particles is present between the individual discs, a coupling-on element at the upper end and a coupling-on element at the lower end of the annular stack, a clamping device bracing the annular stack, an outer cage, a coupling element at the upper end and a coupling element at the lower end of the filter module connecting the filter module to further components of the extraction equipment.