A5050156118- Seismic Imaging and Inversion Techniques
- Seismic Waves and Analysis
- Underwater Acoustics Research
- Reservoir Engineering and Simulation Methods
- Geophysical Methods and Applications
- Geological Modeling and Analysis
- Image and Signal Denoising Methods
- Advanced Fiber Optic Sensors
- Geological and Geophysical Studies
Saudi Aramco (United States)
2010-2020
Kootenay Association for Science & Technology
2014-2015
King Abdullah University of Science and Technology
2014-2015
Despite the explosion of new, innovative technologies in area multiple identification and subsequent attenuation, their applicability is mostly limited to marine environments especially deep water. In land seismic data sets however, application such multiple-elimination methodologies not always straightforward many cases poor results are obtained. The unique characteristics (i.e., noise, statics coupling) major obstacles estimation elimination. well-defined surface multiples present rarely...
The estimation and subsequent elimination of internal multiples in land seismic data is one the most challenging steps processing. Although marine multiple techniques, such as SRME technology, are well established, their implementation not straightforward many cases poor results obtained. In this paper we use theoretical concepts from Inverse Scattering Series (ISS) formulation develop computer algorithms for elimination. key characteristic ISS‐based methods that they do require any...
GeoDRIVE, a high performance computing (HPC) software framework tailored to massive seismic applications and super-computers is presented. The paper discusses the flexibility modularity of application along with optimized HPC features. GeoDRIVE's versatile design, associated exascale capabilities, unlocks new classes that significantly improve geoscientists' abilities understand, locate characterize challenging targets in complex settings. As result, uncertainties subsurface models are...
Summary Wavefield extrapolation is at the heart of modeling, imaging, and Full waveform inversion. Spectral methods gained well deserved attention due to their dispersion free solutions natural handling anisotropic media. We propose a scheme modified one-step lowrank wave using Shanks transform in isotropic, Specifically, we utilize velocity gradient term add accuracy phase approximation function spectral implementation. With higher accuracy, can larger time steps make more efficient....
Summary Wavefield extrapolation is at the heart of modeling, imaging, and Full waveform inversion. Solving wave equation using finite-difference approximations allows for fast wavefield. It, however, suffers from dispersion stability-related limitations that might hamper its efficient or proper application to high frequencies. Spectral methods are far more accurate stable with free solutions, but usually comes an additional cost extrapolation. We use residual formulation spectral...
Abstract We utilize theoretical concepts from the Inverse Scattering Series (ISS) formulation to develop internal multiple elimination algorithms for land seismic data. ISS-based methods are fully data-driven, therefore, they do not require any subsurface knowledge. Internal multiples all possible generators computed and adaptively subtracted input These equally well suited pre- post-stack applications, effective even when there is little or no moveout difference between primary reflections...
Abstract Reverse time migration (RTM) involves zero-lag cross-correlation of forward extrapolated source function wavefields and backward receiver wavefields. For a near surface with complex structures velocity anomalies, propagating the wavelet generates containing reflections, near-surface multiples, scattered direct arrivals. The are recorded as upgoing arrivals contaminated by same signals, which can be critical for imaging scatterers. Here, we develop new depth migration, duplex reverse...
Summary We present GeoDRIVE, a software framework tailored to seismic applications embedding high performance features. discuss the spatial cache-blocking algorithm for Finite-Difference Time-Domain (FDTD) method and protocol find optimal parameters. GeoDRIVE was successfully applied on 3-D large scale surveys using Shaheen II supercomputer at KAUST. Two are presented. In first one, we produced image of subsurface geologic layers record resolution 7.5 meters with maximum frequency 100 Hz (...