title: A new approach in physical modeling for velocity anisotropy studies
metadata.name: dc.contributor.author
metadata.value: Popov, Dmitriy A.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Chichinina, Tatiana I.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Polovkov, Viacheslav V.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Korsakova, Irina O.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Pinbo, Ding
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Kashtan, Boris M.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Troyan, Vladimir N.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2019-12-09T11:26:07Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2019-12-09T11:26:07Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2019-09
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Popov, D. A., Chichinina, T. I., Polovkov,V. V., Korsakova, I. O., Pinbo, D., Kashtan, B. M., Troyan, V. N. (2019). A new approach in physical modeling for velocity anisotropy studies. Vestnik of Saint Petersburg University. Earth Sciences, 64 (3), 454–465.
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: https://doi.org/10.21638/spbu07.2019.305
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/16759
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: Special automated equipment was constructed for ultrasonic velocity measurements at various incidence angles of waves that is necessary for estimation of anisotropy parameters of rocks. The equipment includes a hydraulic press for simulation of vertical pressure in the Earth at a range up to 40 MPa, and a computer-controlled positioning system that provides precise independent positioning of the ultrasonic source and receiver. This setup enabled us to perform reliable velocity measurements at the angle interval from 15° to 90° and an additional single measurement at 0°. The minimum step of a transducer position in the 15°–90° range is 8.1’. As an example for the anisotropy study, we performed physical modeling of wave propagation in an artificial sample of transversely isotropic (TI) symmetry, which represents a model of fractured rock. Using an experimental setup, we acquired P-wave velocity data for a plate-stack model with a vertical axis of symmetry formed by acrylic 1-mm-thick sheet plates. Using measured velocities, we estimated Thomsen’s anisotropy parameters ε and δ, and got dependence between the velocity of P-waves and the symmetry axis of the model. In our oncoming research, the upgraded Ultrasonic Measuring System will be supplemented by multicomponent transducers similar to those described in Chichinina et al. (2009), which allow simultaneous recording of P, SV and SH waves at each data point.
metadata.lang: en_GB
metadata.name: dc.description.sponsorship
metadata.value: Исследования производятся в рамках совместного Российско-Китайского гранта РФФИ- ГФЕН № 18-55-53060. Основания систем позиционирования изготовлены при участии ресурсного центра СПбГУ «Центр прикладной аэродинамики».
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: ru
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: St Petersburg State University
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: Vestnik of St Petersburg University. Earth Sciences;Volume 64; Issue 3
metadata.lang: -
metadata.name: dc.subject
metadata.value: seismic
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: anisotropy
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: physical modeling
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: anisotropy parameters
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: linear-slip model
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Schoenberg’s model
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: VTI
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: A new approach in physical modeling for velocity anisotropy studies
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 454-465.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/16759/1/454-465.pdf
resources.format: Adobe PDF
resources.size: 2,81 MB