The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 02, 2010
Filed:
Jul. 30, 2007
Geoff Downton, Minchinhampton, GB;
Peter Hornblower, Bath, GB;
Martin Bayliss, Stroud, GB;
Edward Richards, Stratford-Upon-Avon, GB;
Geoff Downton, Minchinhampton, GB;
Peter Hornblower, Bath, GB;
Martin Bayliss, Stroud, GB;
Edward Richards, Stratford-Upon-Avon, GB;
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
Exhaust pressure from at least one actuator () which can tilt jointof a bottom hole assemblycan be utilized to determine the directiontiltable jointis pointing (e.g., orientation, angular displacement, and/or inclination and azimuth). In one embodiment, a known exhaust pressure can be correlated to a known orientation and/or angular displacement, and the measured exhaust pressure can be compared to the known exhaust pressure to determine the orientation and/or angular displacement. In another embodiment, the flow rate of fluid exhausted from an actuator () can be derived from the exhaust pressure. The exhaust flow rate can then be used to calculate the state of actuation, which can allow determination of the angular displacement of the tiltable joint. Orientation and/or angular displacement with respect to the bottom hole assemblycan be resolved into an inclination and azimuth with respect to a formation