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Keywords: porosity
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Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3414427
... at the 2020 SEG Annual Meeting. reservoir characterization tight gas sandstone property exploration geophysicist 10 moduli fluid dynamics porosity taqi al-zaki upstream oil & gas variation arqam muqtadir jack dvorkin university crack porosity dvorkin flow in porous media stress...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3418232
... variation porosity exploration geophysicist 10 elastic model upstream oil & gas shale host rock seismic modeling sand intrusion seismic response shale geometry intrusion 3D seismic modeling of heterogeneous poorly-consolidated sandstones in shale host rocks Raisya Noor Pertiwi*, University...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3427097
... and porosity. Next, we use the synthetic wells to test the efficacy of three common machine learning algorithms: support vector regression (SVR), random forest (RF), and the multi-layer perceptron (MLP). Finally, we predict P- and S-wave velocity by utilizing both the machine learning algorithms and the rock...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3424960
... The porosities of gas shale samples are measured in a laboratory. Systematic errors caused by the leakage during time-consuming tests are analyzed. We discuss the characteristics of porosity measurement for gas shale samples and introduce a new way to estimate micro-porosity. Based...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3428423
... With the deepening of exploration and development, more and more attention has been paid to the study of unconventional reservoirs, especially deep tight sandstone reservoirs. Due to the special physical properties of low porosity and low permeability and complex pore structure, the traditional...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3427877
... formation identification seg international exposition structural geology shale geophysics anisotropy effect upstream oil & gas porosity avo analysis distributive column chart anisotropy seismic anisotropy anisotropic property reservoir characterization intercept avo interpretation...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3427916
... to their sensitivity to presence of gas hydrates. In this abstract, varied porosity evaluation methods are performed and compared for their applicability using well logging data from South China Sea. Furthermore, saturation of gas hydrates are subsequently estimated from logs based on rock physics modeling...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3427931
... inversion technique was employed to obtain the impedance and compute the porosity of the fractures. Here to simplify the computation, the porosity was used to measure the fracture connectivity. After that, an intelligent connectivity path analysis method was introduced to find out the optimal connectivity...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3428078
... reservoir characterization mukerji coefficient seg international exposition compositionally heterogeneous rock upstream oil & gas porosity application effective stress coefficient reservoir geomechanics pore pressure geophysics moduli bulk modulus structural geology pore...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3428138
... for effective porosity and Nuclear Magnetic Resonance (NMR) for fluid content, type and total porosity. In this way we obtain pressure dependent anisotropic elastic moduli. This allows us to fit compressional and shear wave velocities, predict porosity variations with confining pressure and estimate physical...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3427647
... is used to describe porosity and pore aspect ratio with the assumption of incompressible grains. Second, each transversely isotropic (TI) elastic stiffness matrix is computed relative to the axis of symmetry. This results in a cross-section populated with tilted TI elastic properties for each element...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3427703
... We assembled a database of published laboratory measurements on dry carbonate samples to demonstrate efficient method of rock physics modeling of carbonate rocks coming from diverse depositional and diagenetic environments. By focusing on the effects of mineralogy, porosity, pore shapes...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3423839
..., and simulate because of their low porosity and tiny pore-sizes. However, the microstructure of source rocks is more conducive to elastic property computations, the main advantage being the similarity in size between the stiff (inorganic) elastic components and the soft (organic) elastic components. Most...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3423889
... calibration formula complex reservoir quartz subscript porosity pore fluid critical porosity composite rock exploration geophysicist 10 mineral grain reservoir characterization structural geology pore pressure prediction seg international exposition equation hydrostatic pressure void ratio...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3427272
... domain isotropic-elastic formulation with truncated Gauss-Newton optimization, any rock physics model with a welldefined mapping between its parameters and seismic velocity/ density can be examined. We select a three-parameter porosity, clay content, and water saturation (PCS) parameterization, and link...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3425261
... ensemble porosity seg international exposition saturation front Joint seismic and electromagnetic inversion for reservoir mapping using a deep learning aided feature-oriented approach Yanhui Zhang and Mohamad Mazen Hittawe, King Abdullah University of Science and Technology; Klemens Katterbauer...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3428220
... upstream oil & gas well 32900 reservoir characterization cherry prospect well logging porosity log analysis correlating porosity water saturation well log data prospect cherry ratio method saturation seg international exposition hydrocarbon saturation characteristic equation...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3426404
.... Nuclear magnetic resonance (NMR) logs are alternative ways to obtain these key parameters. To establish a model to estimate resistivity index from NMR logs, 17 cores from the study area were selected for experiments. The helium porosity, air permeability, NMR T2 distribution, and resistivity of cores...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3428372
... reservoir characterization subsurface storage structural geology co 2 porosity inversion university upstream oil & gas assessment exploration geophysicist 10 storage capacity permeability seismic data international journal ge-1 well strata integrated seismic inversion united state seg...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3423752
... In this work, we investigate the applicability of an ensemble based petrophysical parameter inversion framework to decouple changes in porosity field from dynamic reservoir/petrophysical parameters such as changes in saturation, pressure using timelapse seismic data as measurement. Here, changes...

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