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:
Oct. 26, 2004
Filed:
Nov. 06, 2001
Applicant:
Inventors:
Yannick Peysson, Paris, FR;
Benjamin Herzhaft, Suresnes, FR;
Assignee:
Institut Francais du Petrole, Rueil-Malmaison cedex, FR;
Primary Examiner:
Int. Cl.
CPC ...
E21B 4/710 ;
U.S. Cl.
CPC ...
E21B 4/710 ;
Abstract
A method providing real-time determination of a thermal profile of the drilling fluid in a well from three measuring points available in the field, i.e. the injection temperature, the outlet temperature and the bottomhole temperature is disclosed. The form of the profile between these three points is defined by a type curve representative of the thermal profiles in a well under drilling, estimated from physical considerations on thermal transfers in the well.