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:
Feb. 19, 2019
Filed:
Dec. 12, 2016
Applicant:
Geoservices Equipements, Roissy en France, FR;
Inventor:
Matthias Francois, Roissy en France, FR;
Assignee:
GEOSERVICES EQUIPMENTS, Roissy en France, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 21/01 (2006.01); E21B 21/08 (2006.01); E21B 47/08 (2012.01); E21B 21/10 (2006.01); G01F 9/00 (2006.01); G01F 23/00 (2006.01); G08B 21/18 (2006.01);
U.S. Cl.
CPC ...
E21B 21/08 (2013.01); E21B 21/01 (2013.01); E21B 21/10 (2013.01); E21B 47/08 (2013.01); G01F 9/00 (2013.01); G01F 23/0076 (2013.01); G08B 21/182 (2013.01);
Abstract
The present disclosure concerns a method for detecting gain or loss of drilling fluid in a drilling installation, said drilling installation comprising a drilling pipe, drilling fluid pits and a hydraulic connection between the pits and the drilling pipe. Said method comprises: