title: The study of seismic wave fields in reservoir zones by numerical simulation of the multi-offset vertical profiling data and data of common source point technique
metadata.name: dc.contributor.author
metadata.value: Kovtun, Alexander A.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Lyskova, Eugenia L.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Sannikov, Konstantin Yu.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2020-05-28T20:42:19Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2020-05-28T20:42:19Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2020-03
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Kovtun, A. A., Lyskova, E. L., Sannikov, K. Yu. (2020). The study of seismic wave fields in reservoir zones by numerical simulation of the multi-offset vertical profiling data and data of common source point technique. Vestnik of Saint Petersburg University. Earth Sciences, 65 (1), 33–50.
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: https://doi.org/10.21638/spbu07.2020.103
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/17962
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: This paper presents a study of seismic wave fields in reservoir zones by numerical simulation.
  In the first part of the study, numerical modeling of full wavefield was performed to synthesize
  the multi-offset vertical profiling data and data of OPV (Common Source Point Technique)
  for the model of the medium in which high-velocity layers (seal and collector) are placed in a
  low-velocity containing medium. It has been established that the principal boundary, the roof
  of the collector, can be distinguished by data only in the case of great thickness of high-velocity
  seal from the field of converted P1S2S2P1 and P1S2S21 waves. These waves are formed on the roof
  of the seal during the passage of a converted transverse wave and exist only in a certain interval
  of epicentral distances from the source, the length of which depends on the contrast of the
  high-velocity seal, as well as on its thickness and depth. Reliable determination of the boundary
  between the high-velocity seal and the collector can be difficult when using only ground-based
  seismic data due to the screening effect. However, it becomes possible with the use of multi-offset
  vertical profiling materials and the correct use of the data of reflected converted P1S2S2P1 and
  P1S2S21 waves. In the second part of the work, we analyze the results of numerical model studies
  of the full-wave seismic response from a thin-layered pack of saturated elastic porous Biot layers
  simulating a reservoir zone. The results of numerical model studies show that the low-frequency
  amplitude anomalies observed in seismic sections below the reservoir zone may be caused by
  the formation of a field of reflected converted transverse waves that are delayed relative to the
  response of the longitudinal wave and having significant amplitudes on the vertical field component
  for the small and middle offsets. The amplitudes and time delays of the total converted
  transverse wave can vary widely depending on specific conditions: depth and reservoir thickness,
  incident longitudinal wave frequency, the presence of boundaries in the reservoir area with
  sliding contact or extended thin cracks filled with fluid, and other factors.
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 65; Issue 1
metadata.lang: -
metadata.name: dc.subject
metadata.value: numerical modeling
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: seismic fields
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: collector
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: screening effect
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Biot layers
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: The study of seismic wave fields in reservoir zones by numerical simulation of the multi-offset vertical profiling data and data of common source point technique
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 33-50.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/17962/1/33-50.pdf
resources.format: Adobe PDF
resources.size: 5,27 MB