... of the ratio of compressional wave velocity to shear wave velocity "Vp/Vs" is a good tool in identifying fluid type. The fact that compressional wave velocity decreases and shear wave velocity increases with the increase of light hydrocarbon saturation, makes the ratio of Vp/Vs more sensitive to change...

... derivative surface wave frequency kansas geological survey shear wave velocity vardoulakis ST 16.7 Estimation of shear wave velocity in a compressible Gibson half-space by inverting Rayleigh wave phase velocity Jianghai Xia *, Richard D. Miller, and Choon B. Park, Kansas Geological Survey, University...

... ABSTRACT Vertical seismic profile (VSP) data from a P-wave source includes rich wavefield information, by which both the velocities of the P-wave and the velocities of the S-wave from a nearby well can be obtained. By using both synthetic data and field data, we demonstrate an approach...

... velocity model and then get the S-wave static correction. According to the experiment of 2D S-wave seismic data in Qaidam Basin, the shallow S-wave velocity model can be derived effectively by the dispersion information of surface wave. The long wavelength trend of the S-wave statics can be predicted...

... ABSTRACT Seismic surface wave surveys were performed at nine sites on three islands in the Sacramento-San Joaquin Delta to measure shear wave velocity (V). Eight surveys used small linear arrays to measure VS in the upper 30 m, and two surveys used large triangular arrays to estimate VS...

... Shear wave velocity has been commonly used as one of the important design parameters for geotechnical structures which are subjected to dynamic loading. This paper introduces the development and application of a new apparatus, the Field Velocity Probe (FVP) for measurement of shear wave velocity...

... ABSTRACT The use of surface wave methods in S-wave velocity (VS) estimation has been getting popular during the past few decades. This article briefly reviews various seismic methods using active and passive surface waves and discusses their applicability to site investigations...

... ABSTRACT The inversion of surface wave dispersion curves is a well-established investigation approach to provide S-wave velocity models. Recent works have shown the possibility of exploiting the relation between surface wave wavelength and investigation depth to estimate directly the time...

... Scholte waves. Scholte waves or mud-roll as they are also called, are interface waves whose velocity mainly depends on S-velocity. The lateral variations in Scholte phase-velocity are measured and inverted to S-velocity. This results in a laterally-varying S-velocity model of the shallow seabed...

... Summary In three-component (3C) VSP data processing, first-break times of direct downgoing S-wave are commonly used for estimating the S-wave velocity. However, comparing to direct P-wave arrivals, the direct downgoing S-waves are usually too weak to be picked precisely. To mitigate...

... Summary The estimation of near surface velocity models of unconsolidated sand bodies is a significant target for seismic exploration data processing. Surface wave analysis can be applied to retrieve S-wave velocity models which are inverted assuming a power-law trend in agreement with loose...

... ABSTRACT We conducted elastic wavefield modeling of shot gathers using soil-column models with vertical and lateral velocity variations to study the dispersive behavior of Rayleigh waves and the effect of lateral heterogeneity on the accuracy of Rayleigh-wave inversion for shear-wave velocity...

... ABSTRACT We study the use of surface waves to invert for a near-surface shear-wave velocity model and use this model to calculate shear-wave static corrections. We invert both group-velocity and phase-velocity measurements, each of which provide independent information on the shear-wave...

... s-wave velocity s-wave velocity model pswave long wavelength height reservoir characterization stack section static correction processing near-surface s-wave velocity model period fluctuation pswave stack section inversion shot gather data velocity model equation pswave static...

... scholte wave seg houston 2009 estimation s-wave velocity inverted converted-wave receiver static reflection s-wave velocity static correction international exposition dispersion curve reservoir characterization receiver static solution receiver static test data near-surface s-wave...

... of the P-wave depends only on the S-wave velocity near the surface (for a given horizontal slowness). Therefore by isolating a pure P-event of known horizontal slowness (typically the first break), we have the opportunity of estimating the S-wave velocity profile at each receiver location. Such an approach...

... half-wave length relation formula ship velocity wave velocity gaussian sea frequency spatial density amplitude probability sea surface wave characteristic spectrum apparent wave wave center wavelength approximation spatial distribution ship Role of Wave Velocity...

... in processing PS data in time, and to better correlate PP and PS data sets. However, depth migration requires both the P and S wave velocity models. meek oklahoma state university depth migration prestack depth migration model building wave data reservoir characterization annual international mtg...

... Shear Wave Velocity Profiles of Sediments Determined from Surface Wave Measurements B. L. Rosenblad and K. H. Stokoe, II University of Texas at Austin Austin, Texas, USA M. E. Kalinski University of Kentucky Lexington, Kentucky, USA E. Kavazanjian GeoSyntech Consultants Huntington Beach...

... ABSTRACT No preview is available for this paper. ackermann traverse line wave velocity s-wave velocity measurement seismic velocity mining conversion surface material compressional geophone subsidence refraction upstream oil & gas seismic traverse line rock mechanics...