Schlumberger Technology Corporation

Oleg Mikhailovich Zozulya

Sergey Sergeevich Safonov

Oleg Dinariev

Anton Vladimirovich Parshin

Marwan Charara

Evgeny Nikolaevich Dyshlyuk

Kreso Kurt Butula

Dimitri Vladilenovich Pissarenko

Denis Vladimirovich Rudenko

Igor Borisovich Esypov

Andrey Viktorovich Fokin

A method for estimating properties of a subterranean formation penetrated by a wellbore provides for injecting a fluid with the plurality of tracer agents wherein each tracer agent is an object of submicron scale, into the wellbore and formation, flowing the fluid back from the subterranean formation and determining the properties of the formation. The properties are determined by analyzing changes in the tracers size and type distribution function between the injection fluid and produced fluid.

Method for estimating properties of a subterranean formation

A method for determining properties of a formation is described herein. The method includes disposing a well-logging tool in a borehole. The well-logging tool includes a device for varying temperature of the formation and two acoustic logging probes located symmetrically along the well-logging tool length relative to the device for varying temperature of the formation. During the logging tool movement in the borehole, continuous varying of the formation temperature, continuous acoustic logging, and continuous measurement of formation temperature are performed. Dependencies of the measured velocity and attenuation of the Stoneley waves as functions of the measured temperature of the formation are obtained. Based on the obtained dependencies, properties of the formation are determined.

Method for a formation properties determination

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 &#x3c9;is 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 &#x3b1; is also determined for the empty and test medium-filled resonance device as well as the resonance frequency shift &#x394;&#x3c9;and the attenuation variance &#x394;&#x3b1; re determined in relation to the hollow resonance device.

Method and device for measuring visco-elastic fluid parameters

Growing community of inventors

Moscow, Russia

Oleg Mikhailovich Zozulya