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Pattern Recognition Applied to Attenuation of Multiples in Subsalt Imaging
It is well known that high impedance contrasts between salt bodies and their surroundings yield blurriness in seismic images which does not allow...
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A case study of time- and depth-domain processing for 250 m-offset seismic data from the Hupo Basin, East Sea
Time- and depth-domain processing procedures were applied to seismic data acquired from shallow coastal areas using limited source-receiver offset...
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The Effects of High Pressure
Pressure increases with depth in the earth, to a maximum at the centre. The rate of increase depends on the material present along the path followed;...
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Salt Tectonic Modeling Using Reverse Time Migration Imaging and Sensitivity Kernel Wavelength Analysis
AbstractIt is of particular importance for structural geology, geophysical exploration and also obvious economical purposes to retrieve structures...
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Poststack internal multiples attenuation based on virtual events
The attenuation of prestack internal multiples based on virtual seismic events is computationally costly and hinders seismic data processing. We...
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The Mid-Pleistocene Transition: a delayed response to an increasing positive feedback?
Glacial–interglacial cycles constitute large natural variations in Earth’s climate. The Mid-Pleistocene Transition (MPT) marks a shift of the...
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Primary-multiple separation technique based on image radon transform
Multiple attenuation is a critical and an essential step in the processing of marine data. Radon transform is widely applicable for multiple...
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Second-order approximate reflection coefficients of vertical transversely isotropic thin beds
Due to the periodicity and rhythmicity of sedimentation, short-term cycles are commonly developed in sedimentary strata. Under the assumption of a...
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Research on vertical cable seismic multiples imaging processing
Vertical cable seismic (VCS) is a kind of reflection seismic exploration technique. Multi-node hydrophone array set perpendicular to the seabed and...
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The map** of shallow upper mantle discontinuities using teleseismic P-wave autocorrelation
AbstractCrust and upper mantle discontinuities play a key role in understanding continental formation and evolution. The most prevalent seismic...
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Anisotropy of out-of-phase magnetic susceptibility in titanomagnetite-bearing rocks due to weak field hysteresis
Properties of the out-of-phase susceptibility (opMS) of rocks and artificial specimens whose opMS is due to weak-field hysteresis, containing...
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Feature extraction based on the convolutional neural network for adaptive multiple subtraction
Adaptive multiple subtraction is an important step for the success of multiple removal after multiple prediction. Generally, the traditional method...
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Earth-shaking J. LEAGUE supporters
We conducted temporary seismic observations at the Hitachi-Kashiwa Soccer Stadium on a J. LEAGUE game day to obtain unique seismic records due to the...
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Sensitivity of the SIMulation-EXtrapolation (SIMEX) methodology to mis-specification of the statistical properties of the measurement errors
In hydrometeorological and environmental studies, it is common to seek relations between two variables (predictand and predictor), one of which...
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Magnetotelluric Power Line Noise Removal Using Temporally Varying Sinusoidal Subtraction of the Grid Utility Frequency
The magnetotelluric method relies on variations of natural electromagnetic fields, which in the vicinity of human settlements are persistently...
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A new water flooding characteristic curve at ultra-high water cut stage
A large number of field practices show that the water flooding characteristic curve will appear up-war** phenomenon in ultra-high water cut stage,...
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Thin interbed AVA inversion based on a fast algorithm for reflectivity
Zoeppritz equations form the theoretical basis of most existing amplitude variation with incident angle (AVA) inversion methods. Assuming that only...
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Wrapround Multiple Reflectors over the Seafloor in the Gas Hydrate Area: A Possible Indicator of Methane Plume
Seismic wraparound multiples which are produced by the previous shot and trapped between the sea surface and flat seabed in the two-dimensional...
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Internal Multiple Prediction Based on Imaging Profile Prediction and Kirchhoff Demigration
This paper introduces an internal multiple prediction method based on imaging profile prediction and Kirchhoff demigration. First, based on an...
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Direct conversion of latitude and height from one ellipsoid to another
I suggest a method for converting geodetic height and latitude from one oblate ellipsoid of revolution to another having the same center and symmetry...
