... anisotropic model polarization analysis grechka reservoir characterization optimization anisotropy inversion anisotropic ray modeling microseismic data seismic anisotropy algorithm seg denver 2014 s-wave splitting upstream oil & gas computation hodogram traveltime Optimization...

... linearity analysis local azimuthal anisotropy reservoir characterization waveform data arrival time eigenvalue linearity rotation hodogram particle motion shot azimuth minima upstream oil & gas amplitude birefringence anisotropy receiver walkaround vsp azimuthal anisotropy...

... uncertainty area receiver probability density function interpretation inclination microseismic event location velocity model accuracy error bar location uncertainty azimuth upstream oil & gas hodogram traveltime residual artificial intelligence event location uncertainty...

... for each three component (3C) sensor was evaluated by considering the spectral matrix, which is a time-frequency representation of the state of polarization of the 3D hodogram. In this way, appropriate stations for the multiplet RIM were determined. The coherence index from 3D-TFC functions suggested...

..., when only one array is available for locations, the hodograms, or the particle motions of the P and S phases, must be utilized to determine the azimuth to the source. In these cases, if there exists only a single observable phase, then the event location is very unconstrained: a rough idea of the depth...

... hodogram ellipsoid upstream oil & gas multiplet rim reflection imaging reflector identification polarization reflection method migration reflection image diffraction stack migration microseismic multiplet original ae reflection method inversion seg seg denver 2010 niitsuma...

... reservoir characterization oil company hodogram receiver station receiver system upstream oil & gas sensor oil field application sensor system international exposition installation optical oil field instrumented oil field reliability instrumentation fiber annual conference...

... angle difference hodogram log-linearity hodogram linearity upstream oil & gas synthetic signal reservoir characterization azimuth bandwidth relationship hold menu microseismic event azimuth estimation multiple measurement hodogram orientation standard deviation injection well...

... in higher SNR and improved hodogram linearity and overall location accuracy. Stacking of geophones or other sensors is a common and wellknown procedure for improving the SNR of seismic data (Sheriff and Geldart, 1982). The general principle is that two noisy events summed together will have their signals...

... of shear-wave hodograms and transverse-to-radial amplitude ratios showed variations with shot azimuths, suggesting the presence of azimuthal anisotropy within the area. These two methods, however, could not provide further constraints for fracture orientation due to the 3D structural complexity...

... & gas reservoir characterization receiver hodogram october 2004 exposition data-driven tilt angle estimation multi-component receiver histogram Data-driven tilt angle estimation of multi-component receivers Jianchao Li*, Side Jin and Shuki Ronen, Veritas DGC Inc. Summary We estimate multi...

... acquisition geometry horizontal vector fidelity hodogram time window receiver horizontal component fidelity vector fidelity azimuthal anisotropy marine multicomponent acquisition system upstream oil & gas reservoir characterization vector infidelity Quantifying the horizontal vector...

... receiver hodogram cross-line component sensor vector component direct arrival vector fidelity seismic data vector fidelity response reservoir characterization conocophillips norway polarization upstream oil & gas ellipticity value Ekofisk VectorSeis® Test: Improvements in vector...

...-far trace (N-F). A benefit of the hodogram method is that the wavelet is taken into consideration as it is convolved with the reflection coefficient series. Crosplotted intercept and gradient are polarized along the background trend for non-anomalous events and at angles different from the background...

...Discrimination of coherent waves by a time-frequency representation of 3D hodogram and application to microseismic reflection method Hiroshi Asanuma*, Jun-ichi Takayama, and Hiroaki Niitsuma, Graduate School of Tohoku University, Japan Summary We have investigated a method to quantitatively...

.... Traditionally a predefined geophone orientation is assumed, which implies careful geophone deployment during acquisition. histogram analysis university p-wave refraction hodogram reservoir characterization geophone orientation stewart horizontal component propagation direction information...

... Summary A method to estimate polarization of reflected waves on the seismic signal while drilling has been introduced to the triaxial drill-bit VSP. The three-dimensional hodogram of the continuous drill signal from one three component detector is correlated in both time and polarization...

... ABSTRACT No preview is available for this paper. coherent wave coherency discrimination jun-ichi takuyama sensor reservoir characterization coherence function japan onset tohoku university hodogram microseismic event separation niitsuma detector tfc analysis reflection...

... basement reflectivity upstream oil & gas asanuma drill-bit signal triaxial drill-bit vsp hodogram subsurface structure BG 4.6 Characterization of subsurface structure at Soultz-sous-Forets (France) by triaxial drill-bit VSP Hiroshi Asanuma*, Jong Nam Park, Hiroaki Niitsuma, Graduate School...

... ABSTRACT No preview is available for this paper. single azimuthally anisotropic layer numerically anisotropic layer layer thickness anisotropic response anisotropy upstream oil & gas signature shear wave birefringence hodogram birefringence time delay layer 2 reservoir...