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:
Jun. 26, 1984
Filed:
Dec. 22, 1981
Applicant:
Inventors:
Andre Guimard, Vaux-le-Penil, FR;
Jacques Lemarchand, Vaux-le-Penil, FR;
Assignee:
Schlumberger Technology Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01L / ; E21B / ;
U.S. Cl.
CPC ...
73708 ; 73151 ;
Abstract
A pressure measurement sonde of the type comprising two piezoelectric detectors, one being used for pressure measurements and the other being used as a reference detector. The latter is used to compensate at least partly, the effects due to temperature variations. This sonde includes means for favoring the heat exchanges of said detectors with the surrounding medium and for substantially balancing the heat exchange rates of each of said detectors with the surrounding medium. The sonde is particulary adapted to the carrying out of pressure measurements in oil wells.