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:
Apr. 21, 2015
Filed:
Jul. 02, 2009
Applicants:
Gerald H. Meeten, Herts, GB;
Richard H. Mills, Cambridge, GB;
Inventors:
Gerald H. Meeten, Herts, GB;
Richard H. Mills, Cambridge, GB;
Assignee:
Schlumberger Technology Corporation, Cambridge, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 21/08 (2006.01); E21B 47/10 (2012.01);
U.S. Cl.
CPC ...
E21B 47/102 (2013.01);
Abstract
A method and a system for detecting or measuring influxes of formation water or brine into a drilling fluid being used to drill a borehole through an earth formation are described. The method and system comprising using an electrode based sensor system to determine changes in capacitance and/or conductance of the drilling fluid.