... hirabayashi deep sonic imaging applied geoscience & energy 10 american association reflection point Analysis of geologic structures using deep sonic imaging Nobuyasu Hirabayashi , Leon Dahlhaus, Rajeev Kumar, Jeroen Jocker, Erik Wielemaker, Manish Lal Khaitan, SLB, and Charles Naville, IFPEN...

...:35 AM Location: 221C Presentation Type: Oral annual meeting annual international meeting velocity model information anisotropic model building angle gather reservoir characterization model building angle domain imaging geophysics reflection point upstream oil & gas...

... the seismic acquisition direction is perpendicular to the high-speed zone, the "speed anisotropy" along the acquisition direction can cause the far offset ray path of reflection point in high speed area through the low speed zone partly, resulting in the migration velocity of the reflection point in high...

... ABSTRACT 3D DAS VSP acquired in south central Texas are processed for P-wave and PS-wave imaging. Ray tracing with a one dimensional velocity model is used to compute traveltimes for moveout correction and common reflection point (CRP) mapping used for the final stacks. The CRP mapping...

... tang geological structure coherence value borehole acoustic array data reflector boundary reflection point artificial intelligence array data slowness upstream oil & gas local dip automatic detection seg international exposition reservoir characterization image point geophysics...

... dissimilarity. An asymptotic simulation of image gathers exposes the notion of split, rather than common, reflection point geometry. Presentation Date: Wednesday, September 27, 2017 Start Time: 4:20 PM Location: 371A Presentation Type: ORAL reflector geophysics radon transform reflection point...

..., September 25, 2017 Start Time: 2:15 PM Location: 370A Presentation Type: ORAL sv-p reflection reflection point suppression p-wave source reflection migration reservoir characterization seg seg international exposition hardage avo upstream oil & gas reflectivity interpretive...

...-zone shape with offset and velocity function : Geophysics , 75 , no. 1 , T9 – T14 . 10.1190/1.3294576 . truncation artifact srme annual meeting fresnel zone reflection point westerngeco upstream oil & gas data-driven multiple prediction carlos espinoza variable aperture...

... is used, we do not require initial models, but only add a virtual layer above the real media. For a range of P-wave velocities of the lower layer, we apply Snell’s law and compute traveltimes. By finding reflection points whose traveltime are the same as actual traveltimes, we determine the P-wave...

... reflection traveltime approach image quality corresponding time window traveltime traveltime approach aperture reservoir characterization image point migration upstream oil & gas weighting factor reflection point ABSTRACT Single-well imaging using borehole acoustic array data aims...

... international exposition yuanzhong chen fault recognition qinghong zhang crosswell seismic upstream oil & gas imaging application reflection point interpretation tube wave annual meeting reservoir characterization amplitude seismic data surface seismic jianhua huang Syarif...

... in the premigration common reflection point domain. The method also appears to be more efficient and robust than other methods we have tried. Introduction As reported by Beal et al (2014), over the past several years Shell has acquired over fifteen ocean bottom seismic (OBS) surveys, mostly in the deep-water...

... The concept of common-offset vector binning was introduced almost simultaneously by Vermeer (1998 and 2002) and Cary (1999) as an alternative to cross-spread binning for 3D wide-azimuth surveys. Conventional cross-spread processing assumes that reflection points and common mid-points (CMPs) share the same...

... primary reflection geophysics migration information upstream oil & gas incident angle adcig artifact image condition annual international meeting reflector reservoir characterization reflection point image time mcmechan horizontal reflector contribution image point...

... of the OBN data is compared with a fast-track processing of a downgoing only dataset. source signature migration separation wavefield deepwater obn obn processing data-processing possibility paal kristiansen variation reservoir characterization noise obn data schlumberger reflection point...

...., 2009). To account for wavefront astigmatism and strongly elongated reflectors we modify the ERC. We illustrate the advantages of using the modified ERC compared to a previous version and spherical reflection coefficient (SpRC). interface curvature aizenberg reflector reflection point...

... to the full acquisition scale. Quality control of seismic repeatability is carried on the shifts in reflection-points between base and monitor datasets. Corresponding support to re-shoot decisions is provided onboard from a dedicated shot indicator. It is defined as the similarity between time-lapse...

... monotypic wave interpretation menu double-square root traveltime approximation upstream oil & gas operator reflection nip reflection point root traveltime approximation reservoir characterization zo section accuracy sq approximation pragmatic approach university Double-square root...

... test upstream oil & gas migration specularity direction vector vector beam migration main menu efficient tomography reflection point ray takeoff direction efficient reflection tomography receiver ray tomography Efficient reflection tomography with ray take-off directions collected...

... and the residual moveouts, are connected at the reflection point; by solving a linear system, the velocity model can be updated. The convergence condition is flattening of the ADCIGs. A layered synthetic model with a fault successfully illustrates the procedure. geophysics migration velocity analysis...