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Keywords: constraint
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Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3577860
... reservoir characterization approximation novel prestack basic pursuit upstream oil & gas applied geoscience exploration geophysicist 10 fatti approximation elastic parameter constraint correlation inversion prestack inversion objective function prestack basic pursuit inversion...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3593878
... distribution characteristics, it provides strong support for the next deployment of Paleogene wells. Note: This paper was accepted into the Technical Program but was not presented at IMAGE 2021 in Denver, Colorado. artificial intelligence modeling characteristic machine learning constraint...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3594930
... picking on the seismic data from Subei Basin, China small faults intersected with main faults diagonally, so the input fault attribute image. With the slope constraints the conventional seismic attributes are ambiguous and the faults forward and backward accumulation + 1] cannot be distinguished...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3581815
... in accordance with time-depth correlation may fail to division, principles and relevant corollary techniques for address the difficulty in sequence boundary identification high-resolution seismic sequence analysis under the and the inconsistency between log and seismic sequence constraint of log sequence have...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3582000
... We present results for joint inversion of magnetotelluric and gravity data based on a newly developed variation of information constraint. Based on a publicly available dataset from the Ernest-Henry Iron-Ore Copper Gold deposit, we demonstrate how this constraint can improve subsurface models...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3582241
...; and tricks for dealing with the small label issue include data more innovatively (2) the CNN has two output branches, augmentation and constraint imposition. While the former is with one for matching the target seismic facies and the other easy in implementation but less effective (e.g., Kim...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3582957
... with the additional constraint that the estimated tion to modify iteratively each re ectivity until the resulting re ectivity must be consistent with that of a nearby borehole. synthetic trace ts the observed data, just like in some well- The proposed strategy relies on a warping function that itera- tying...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583068
... signal with a sparsity-promoting constraint. The latter minimizes two residuals: First, the residual between the input seismic and the summation of the two sub-network outputs. Second, the residual between the output signal and the degradations of conventional filter results. The test results...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583232
... attenuation caused by the injected CO 2 blurs the final velocity models. Another question is the TLFWI methods barely have strong constraint on extracting temporal information from dense time-lapse data to reconstruct high resolution dynamic evolution subsurface models. Besides, to quantify these subsurface...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583272
... is described. We take advantage of the introduce physics constraints in composite loss functions to domains of local optimization and of the machine learning act as regularization mechanisms toward nonphysical (ML) or deep learning (DL) technique to generate efficient solutions for the derivation...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583447
... to separate ground-roll and re ec- related to and motivated by the wave characteristics of ground- tion signal. We add two additional blocks into this design to roll. Test results on eld seismic records prove the effects of impose surface-wave modeling constraint and improve signal adding each component...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583329
... geoscience vector rotation angle stress inversion reservoir characterization focal mechanism constraint htpf data exploration geophysicist 10 stress direction full stress inversion Full stress inversion from focal mechanisms and borehole data at Soultz-sous-For ts. Dmitry Alexandrov* and Leo...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583565
... We present a general scheme for 3D geophysical inversion using a deep learning convolutional neural network that enables three-dimensional inversions of useful size to be solved on laptops and desktops. A priori constraints of maximum smoothness or compactness on model parameters used during...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583950
... and constraints to reduce non- flexible and inversion framework that can deal with any uniqueness. The types of regularization term introduced are regularizations is lacking. In addition, when a certain type of different for different applications, but some regularization regularization introduces a non...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3568032
.... Therefore, we perform FWI for tilted TI media with between the parameters. The geologic constraints are obtained the symmetry axis set orthogonal to the interfaces. Also, we from well logs and interpolated along major horizons in the mi- employ a velocity-based parameterization, shown to be partic- grated...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3577776
.... lack-of-data constraints is suppressed with data distribution The iterative approach compares the predicted outputs and the internal relationship is honored. against production, injection and pressure data gathered at the producers and the injectors creating a closed feedback It has been recognized...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3577750
... that the proposed automatic first arrival picking by global path tracing can provide stable and smooth picked first arrivals. reservoir characterization applied geoscience global path tracing global path artificial intelligence constraint shot gather arrival picking travel time picking upstream oil...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3584448
... and parameter reference constraints provides a groundwater salinities through regular water sampling of more refined model, enabling higher confidence in the monitoring wells, and geophysical logging within these interpretation. The purpose of this study was to test the wells. In 2016, approximately 381 km...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3587618
... seismic data coefficient liu natural language constraint text processing applied geoscience computation exploration geophysicist 10 reservoir characterization upstream oil & gas registration computation ziyan zhou application data registration iterative local similarity similarity...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3587371
...-to- phase properties, while purely electromagnetic approaches electric conversion. As illustrated in Figure 1, the typically provide limited, low-resolution constraints on the propagating seismic wave generates an electrical current, rock structure. Our goal is to assess the use of seismoelectric which...

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