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. 12, 2013
Filed:
Nov. 16, 2010
Oleg Mikhailovich Zozulya, Moscow, RU;
Igor Borisovich Esypov, Moscow, RU;
Andrey Viktorovich Fokin, Moscow, RU;
Oleg Mikhailovich Zozulya, Moscow, RU;
Igor Borisovich Esypov, Moscow, RU;
Andrey Viktorovich Fokin, Moscow, RU;
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
The invention relates to measuring visco-elastic fluid parameters, in particular, in the oil production industry, for defining heavy oil parameters during field development. The method involves the excitation of a hollow resonance device oscillations by sending a continuous variable-frequency signal to two transmitting transducers located on the outer surface the said resonance device. Oscillations are recorded by a receiving transducer. Amplitude-vs-frequency response curve is plotted and effective resonance frequency ωis determined. Thereafter, a cavity of the said resonance device is filled with a medium under examination, and oscillations are excited to obtain associated amplitude-vs-frequency response values. An axially symmetric capacity placed in a thermostabilized chamber is used as the resonance device. While implementing the method, the attenuation factor α is also determined for the empty and test medium-filled resonance device as well as the resonance frequency shift Δωand the attenuation variance Δα re determined in relation to the hollow resonance device.