.... applied geoscience wavefield application propagation direction upstream oil & gas fourier transform geophysics angle measurement energy distribution illumination analysis exploration geophysicist 10 inversion reservoir characterization efficient angle measurement frequency-domain...

... the target areas in order to achieve the desired efficiencies in acquisition effort and cost. Presentation Date: Thursday, September 28, 2017 Start Time: 9:45 AM Location: 371F Presentation Type: ORAL illumination analysis surface obstruction reservoir characterization source point annual...

... illumination is one of key components for high resolution subsurface imaging and inversion. Both configuration of seismic acquisition geometry and complexity of subsurface model may have great influence on illumination of deep target. A new target-oriented illumination analysis and geometry optimization...

... illumination analysis viscoelastic tti media staggered grid Aki , K. , and P. Richards , 2002 , Quantitative seismology , 2nd ed. : University Science Books . Baig , A. , and T. Urbancic , 2010 , Microseismic moment tensors : A path to understanding frac...

... multi-parameter fwi illumination analysis inversion inversion result l-bfg method acoustic media upstream oil & gas annual meeting iteration initial velocity model line denote accuracy reservoir characterization seg seg international exposition wave propagation velocity model...

... Location: 171/173 Presentation Type: ORAL seg seg international exposition annual international meeting upstream oil & gas illumination equation wave propagation direction annual meeting vector illumination analysis information wavefield reservoir characterization image correction...

... Cao , J. , and R. S. Wu , 2009 , Full-wave directional illumination analysis in the frequency domain : Geophysics , 74 , no. 4 , S85 – S93 , 10.1190/1.3131383 . Cao , J. , 2013 . Resolution/illumination analysis and imaging compensation in 3D dip...

... Presentation Type: ORAL dimout imaging illumination annual international meeting illumination analysis azimuth variation annual meeting interpretation seg seg international exposition modeling reservoir characterization geometry upstream oil & gas target horizon amplitude...

... intensive. To be practical, the illumination analysis is often conducted under a single (usually the dominant) frequency and with limited number of sources and receivers. Recently, the full wave equation based RTM has become the industry standard. To be consistent with this trend, the broadband, full-wave...

... implemented based on wave-equation propagator (Xu and Jin, 2005; Jin and Xu, 2010). Seismic visibility is always confused with the more widely known illumination analysis. But they are have some obvious differences, for a given survey and geologic model, illumination strength quantifies the detecting power...

... Summary We develop a new efficient scheme of illumination analysis for arbitrary acquisition system using plane waves. With this scheme, we can calculate the total illumination efficiently which considers the distribution of source and receivers. Therefore, it can be a useful tool to study...

... whether faults are smeared. Moreover, using the same or similar RTM for illumination analysis as for later imaging provides a more accurate prediction of the expected target resolution than using a different imaging algorithm. Not only do RTM algorithms provide some illumination balancing that we want...

... seg reservoir characterization annual international meeting modeling seg houston 2013 upstream oil & gas international meeting resolution function imaging compensation operator procedure th annual international meeting decomposition illumination analysis compensation image...

... Summary We develop an efficient scheme of illumination analysis along a target horizon. With this scheme, we can calculate the Directional Illumination (DI) from the sources and the Acquisition Dip Response (ADR) along a target horizon in very short turnaround time. Therefore, it can...

... Summary The angle-domain illumination can analyze the complex geological body finer. In this paper, we proposed a method of angle-domain illumination analysis with rugged surface. The main process uses the local slant stack technique to decompose the seismic wave-field, judging weighting...

... depth migration. However, the illumination analysis based on wave equation is time-consuming. So the methodology is not widely used in practical survey design. In this paper, we present a new illumination methodology which combines sources to improve the computational efficiency of seismic illumination...

... seismic acquisition designs, e.g. increased azimuth, long offset acquisition. Following the successful completion of a proof of concept test using a realistic synthetic model, an illumination analysis study was carried out over the survey area to determine the illumination characteristics of the legacy...

.... The visibility studies support wide azimuth and long offset acquisition geometries to provide imaging uplift for the target under the seismic obscured zone. acquisition design shot visibility map illumination visibility acquisition geometry upstream oil & gas illumination analysis reservoir...

... Summary We propose a critical reflection illumination analysis to evaluate subsalt illumination in areas where high velocity contrasts create shadow zones. This phenomenon often occurs at the base and edges of salt bodies, for example. When critical reflection occurs, continued iterations...

... beamlet migration beamlet propagator vti medium annual international meeting illumination analysis propagator santa cruz depth migration equation migration university of california poststack migration image correction geophysics upstream oil & gas decomposition wavenumber...