Effects of Fluid Saturation Variations on the Acoustic Parameters of Reservoir Rocks Under Simulated Formation Conditions

Effects of fluid-saturation variations on the acoustic parameters of reservoir rocks under simulated formation conditions are studied. Experimental velocities of ultrasonic waves traversing cores saturated with CO 2 , formation water, and crude oil are measured at various temperatures and pressures...

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Bibliographic Details
Published in:Chemistry and technology of fuels and oils 2018, Vol.54 (3), p.334-342
Main Authors: Yang, Huohai, Yi, Xiangyi, Fang, Qiang, Lu, Jun’an
Format: Article
Language:English
Subjects:
Acoustic properties
Carbon dioxide
Chemistry
Chemistry and Materials Science
Confining
Crude oil
Elasticity
Geotechnical Engineering & Applied Earth Sciences
Industrial Chemistry/Chemical Engineering
Innovative Oil and Gas Technologies
Longitudinal waves
Mineral Resources
Parameters
Rocks
Saturation
Transverse waves
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Summary:Effects of fluid-saturation variations on the acoustic parameters of reservoir rocks under simulated formation conditions are studied. Experimental velocities of ultrasonic waves traversing cores saturated with CO 2 , formation water, and crude oil are measured at various temperatures and pressures and analyzed. Experimental results showed that the velocities of longitudinal and transverse waves in cores increased if the confining pressure and rock elasticity modulus increased. The transverse wave velocity did not depend on the saturating substance. The longitudinal wave velocity was greater for water saturation than for CO 2 and oil saturation.
ISSN:0009-3092
1573-8310
DOI:10.1007/s10553-018-0931-x