Rotary steerable motor system for underground drilling

US7762356B2 · kind B2 · utility

Assignee

• APS Technology, LLC · US

Inventors

• William Evans Turner · Durham, US
• Carl Allison Perry · Middletown, US
• Mark Ellsworth Wassell · Houston, US
• Jason R. Barbely · East Islip, US
• Daniel E. Burgess · Middletown, US
• Martin E. Cobern · Cheshire, US

Key dates

• Filing date: May 22, 2008
• Grant date: Jul 27, 2010
• Expiry date: May 22, 2028

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21B47/12
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

A preferred embodiment of a system for rotating and guiding a drill bit in an underground bore includes a drilling motor and a drive shaft coupled to drilling motor so that drill bit can be rotated by the drilling motor. The system further includes a guidance module having an actuating arm movable between an extended position wherein the actuating arm can contact a surface of the bore and thereby exert a force on the housing of the guidance module, and a retracted position.