... neural network machine learning architecture american association alignment procedure seismic amplitude boundary augmentation exploration geophysicist applied geoscience energy 10 society compute outlier rectangle An integrated workflow of improving the accuracy of first arrivals...

...: higher image quality will get a larger merging weight. Second, a relative shift controlled by weight is performed to achieve the best alignment dynamically, and third, a final summation with weight is applied. Some common pitfalls during application are discussed and possible solutions are proposed...

... propose a two-step accelerometer, and surface geophone spread (Bakulin et al., procedure for drift correction. The first step is a novel 2020). automated linear drift correction, which acts as an alternative to existing semi-manual approaches used in drilling. The After conducting sensor alignment, we...

... fracture characterization. In this paper, we Despite these advantages, the crack orientation distribution propose a rock physics model for transversely isotropic (TI) function of their model is not flexible enough to capture the medium and incorporates a flexible function to describe the strong alignment...

... to the prediction inevitably. We propose an alternative algorithm alignment of seismic trace. Moreover, Gulunay et al (2007) for robust gather flattening with modified L1-2-norm sparse extended it to be suitable for polarity reversal events, representation, which incorporates the L1-norm fidelity for deriving...

... to both tasks with the only difference that the same deep neural network architecture is trained on different synthetic data sets specific to the task at hand. In the case of trim statics our synthetic data models the conversion of Common Depth Point (CDP) gathers to CDP gathers with aligned primary...

... property clay mineral clay aggregate upstream oil & gas muscovite moduli vernik anisotropy alignment median orientation angle structural geology Alexandrov , K. S. , and T. V. , Ryzhova , 1961 , Elastic properties of rock forming minerals 2: Layered silicates...

... was controlled by organic matter and calcite alignment in the carbonate facies and clay alignment plus organics in the muddy facies. The Utica shale was highly resistive due to low porosity, low water saturation and the presence of the migrated organic component in the original pore system. Presentation Date...

... ABSTRACT In this study we develop a new trace-based, warping least-squares inversion method to quantify 4D velocity changes. We solve for these velocity changes in two steps: 1) dynamic warping with phase constraints to align the baseline and monitor traces; and 2) least-squares inversion...

... ABSTRACT We introduce a technique named WARPick for seismic image gather flattening. This warping tool simultaneously aligns events horizontally as well as vertically, by using the engine of Multi-Scale and Iterative Refinement Optical Flow (MSIROF) borrowed from Computer Vision. We share...

... ABSTRACT Focusing strategies can significantly improve seismic images when velocity errors remain during migration. Gather alignment strategies provide a robust approach at recovering long-wavelength errors and improving low-frequency content of the stacked image. Common-shot image alignment...

... an automatic event picking and objective function minimization. That is a simple technique, however fast and provides good PS to PP data alignment. An innovative stochastic inversion is then used to estimate the compressional (P), share (S) impedance and Vp/Vs ratio from the PP-PS data set. The inversion uses...

... data for initial bulk alignment. Then we utilize a new method named Fast Alignment and Matching Algorithm (FAMA) to 1) remove residual misalignment between synthetic and observed traces using an optimized cross-correlation strategy and 2) produce reference double-couple solutions as constraints...

... fidelity. Here we present a general optimization method for the alignment of partial images to mitigate the effects of complex scattering and complex wave behavior through salt. Although we do not claim that the method produces true amplitude fidelity, we have found that it can enhance migration images...

... input data set, which cannot robustly suppress coherent noises. We describe a novel, iterative method to clean and enhance the stacked migration image through optimized alignment of vector image partitions (VIPs). To demonstrate the superiority of our algorithm, we present both synthetic and field...

... and the alignment of the clay content and between anisotropy evolution under increasing confining pressure and strain have been established for 5 organic-rich shale samples of both peak oil and dry-gas window thermal maturities. Velocity anisotropy, lattice preferred orientation (LPO), and XRD data show a strong...

... upstream oil & gas chemical spill interface anisotropy conductivity structure alignment orientation perpendicular conductivity anisotropy ice sheet seg houston 2013 sea ice survey direction bradford reflection strength preferential alignment radar wave anisotropy alaska...

... Summary Trim statics applications of the previous era which aligned peaks to peaks have been all but forgotten and replaced with more modern gather flattening methods. While polarity blind methods preserve class2 AVO, polarity sensitive methods provide more powerful alignment of gathers...

... algorithm clifford euclidean distance alignment correlation coefficient keogh Guided seismic-to-well tying based on dynamic time warping Roberto Henry Herrera and Mirko van der Baan, Department of Physics, University of Alberta SUMMARY We present a semi-automatic alternative to the manual seismic...

... Fig. 1). mechanism reservoir characterization alignment dimension seg seg denver 2010 laboratory hydraulic hydraulic fracturing experiment upstream oil & gas frequency hydraulic fracture microseismicity limestone permeability fracture sensor indiana limestone hypocenter...