...Dan Loewenthal; Enders A. Robinson Abstract In many physical phenomena, the laws governing motion can be looked at as the relationship between unified dual fields which are continuous in time and space. Both fields are activated by a single source. The most notable example of such phenomena...

... relief and permeability enhancement in high-gas pressure coal seams. Multiple fractures can be created in the coal body by CDPTB due to its characteristics of having a great impact stress and high energy efficiency. To determine the dual characteristics of coal fracturing and seepage after CDPTB...

.... Loewenthal and Robinson (2000) discussed the unified dual-field deconvolution by assuming that the earth acts as a single-channel system. Their method consists of two steps. First, the Einstein deconvolution is computed, which deconvolves the linking upgoing wave by means of the linking downgoing wave...

... in conjunction with each other. Seismic Interpretation: The Physical Problem by Anstey (IHRDC, 1997). Seismic Inversion and Deconvolution, Part B: Dual-Sensor Technology by Robinson (Elsevier, 2000). ‘On unified dual fields and Einstein deconvolution’ by Loewenthal and Robinson (G eophysics , in press...

... at mesoscale and microscale simultaneously, a new model which can accurately describe the frequency variation characteristics of rocks in the full frequency band is proposed. On this basis, combined with the pressure-dependent dual-porosity model, a unified pressure- and frequency-coupled elastic modulus...

.... , 1987 . The generalized one-dimensional synthetic seismogram : Geophysics , 52 , 589 – 605 . Loewenthal D. Robinson E. A. , 2000 . On unified dual fields and Einstein deconvolution . Geophysics , 65 , 293 – 303 . Robinson E. A. , 1975 . Dynamic predictive decomposition...

... in optical fiber sensors , in M. Yasin , ed., Fiber optic sensors : InTech , 439 – 458 . Loewenthal , D. , and E. A. Robinson , 2000 , On unified dual fields and Einstein deconvolution : Geophysics , 65 , 293 – 303 , doi: 10.1190/1.1444720 . GPYSA7 0016-8033 Madsen...

...). “Deterministic estimation of a wavelet using impedance type technique” by Loewenthal et al. ( Geophysical Prospecting , 1985). “On unified dual fields and Einstein deconvolution” by Robinson (G eophysics , 2000). “The Alba Field OBC seismic survey” by MacLeod et al. (EAGE 1999 Expanded Abstracts ). “Removal...

...-frequency pressure recordings: A case study : 74th Annual International Meeting , SEG, Expanded Abstracts, 1309 – 1312 . Loewenthal D. Robinson E. A. , 2000 , On unified dual fields and Einstein deconvolution : Geophysics , 65 , 293 – 303 . Muijs R. Robertsson J. O...

...) proposed chronostratigraphy will allow us to report field mapping results from both the stratified and nonstratified rocks in orogenic belts on the one time scale. In summary, we support the proposal of Zalasiewicz et al. (2004) to terminate the distinction between the dual stratigraphic terminology...

... Loewenthal D. Robinson E. A. , 2000 , On unified dual fields and Einstein deconvolution : Geophysics , 65 , 293 – 303 , doi: http://dx.doi.org/10.1190/1.1444720 . GPYSA7 0016-8033 Lutz J...

... ) ( x μ , x , ω ) . (40) Here ∏ v = 1 μ means the scalar (or internal) product of corresponding matrices. Note that (36), (38), and (40) has the form unified for the three wave fields used in geophysics (acoustic, elastic, and, naturally, electromagnetic). Details...

..., which allows for the forward and inverse transformation between the effective and the optical domain, thereby providing a unified view on currently used stacking approximations. Supported by synthetic tests, we reveal that all higher-order operators can be described in and transformed between both...

... in practice to predict the other physical property (e.g., conductivity or velocity), at least for porous sandstones. Our results suggested the requirement of a new model to link the elastic and electrical properties to a unified pore aspect ratio spectrum of rocks. 20 12 2015 3 3 2016 14 3...

... . GPYSA7 0016-8033 Dvorkin J. Nur A. , 1993 , Dynamic poroelasticity: A unified model with the squirt and the Biot mechanisms : Geophysics , 58 , 524–533 , doi: 10.1190/1.1443435 . GPYSA7 0016-8033 Eshelby J. D. , 1957 , The determination of the elastic field...

... and interpretation. Here, we propose a novel method that is applicable to attenuating both incoherent noise, such as environmental noise, and coherent noise, such as ground roll and scattered noise, under a unified learning-based framework. This framework takes advantage of conventional methods to build the initial...

... , for spectral analysis using the multitaper algorithm. The package not only includes power spectral density estimation (with confidence intervals) but also includes bivariate problems such as coherence, dual‐frequency correlations, and deconvolution estimation. Implementation of the sine and quadratic...

... ‘unified’ 3D earth model. Biot–Gassman fluid substitution algorithms were successfully applied for decades, but suffer, like all mixing laws, from non-uniqueness. Recent investigations demonstrate that dispersion in the low frequency band could have strong implications for seismic attribute analysis...

... consider three types of fractures, namely, periodically and randomly spaced planar fractures, as well as penny-shaped cracks. The extended unified model is then tested by comparing with corresponding numerical simulations based on Biot’s theory of poroelasticity. We consider two cases of 2D rock samples...

... properties related to the exploration and development of conventional and unconventional reservoirs. Yue et al. simulate the acoustic field in a borehole surrounded by granular media using a finite-difference technique. The simulation results provided the relationship between velocity and amplitude...