1-20 of 5267
Keywords: inversion
Close
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583288
... With the development of intelligent inversion technology, deep learning method has been successfully applied in geophysical inversion. Unlike the traditional neural network, this study uses the U-Net structure based on fully convolutional networks (FCN) to invert the physical properties...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3580700
... geophysicist 10 reservoir characterization conductor three-dimensional electrical structure upstream oil & gas taqian-zhuxi copper-tungsten polymetallic deposit inversion deep conductor copper-tungsten polymetallic deposit paleozoic carbonate polymetallic deposit metals & mining zhuxi...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3590593
... Carbonate reservoirs have complex pore structures, which significantly alter the elastic properties and seismic responses, and affect the accuracy of physical parameter estimations. However, the existing rock-physics inversion methods are mainly used for clastic rocks, and their objectivities...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583219
... with logging data and the seismic reflection characteristics of main target strata Chang 7 member, and then provides detailed description of the thickness and distribution of tight oil reservoirs by using the geostatistical inversion, waveform classification, multi-attributes fusion technologies. The seismic...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3594223
... frequency extension technology to obtain seismic data with high-resolution and high-fidelity, which effectively improves the quality of seismic data. Furthermore, pre-stack frequency division inversion technology is applied to acquire high-resolution sandstone probability bodies, which can describe...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583355
... Aiming at the need of exploration targets of shale reservoirs which are highly heterogeneous vertically and horizontally, we have improved the prestack waveform inversion method by assuming a locally horizontal structure for every common mid/conversion point location to depict the spatial...
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
... Comparing the conventional prestack AVO inversion based on least square strategy, the prestack basic pursuit inversion can obtain the blocky elastic parameters which suit to reduce the ambiguity in interpretation. But the traditional prestack basic pursuit inversion doesn’t obtain stable S-wave...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583466
... establishes a set of technical process for predicting reservoir permeability, porosity and pore structure by using prestack seismic multi-parameter inversion results. When the porosity and shale content are weighted, there is a good linear fitting relationship with the P-wave and S-wave velocity. What’s more...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3579751
... The conventional reflection coefficient inversion assumes that the seismic wavelet is time-invariant, but due to the influence of factors such as stratum absorption and attenuation, the actual seismic wavelet will change when it propagates in the underground medium. If the time-varying nature...
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
... of reservoir in the target area, through the innovation of seismic inversion method, a stochastic simulation inversion method based on configuration modeling is proposed, which improves the reservoir prediction accuracy under the condition of Paleogene sparse drilling. Through the characterization of reservoir...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3582313
... Full waveform inversion (FWI) can be applied to time-lapse (4D) seismic data for subsurface reservoir monitoring. However, it mainly relies on far-offset diving waves to estimate large-scale (low-wavenumber) variations of velocity structures, and thus may not penetrate deeper reservoirs...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3582991
...-waveform inversion (FWI) aims to produce high-resolution physical models by iteratively matching modeled with recorded data considering the dynamics and kinematics of waveforms. Even though viscous attenuation plays a major role in seismic wave propagation, attenuation and absorption effects are commonly...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3582659
... Conventional Full Waveform Inversion (FWI) produces high-resolution model updates from diving wave energy in recorded seismic data. However, the penetration depth of refraction energy is limited by the maximum recorded offset and the Earth’s velocity field, so we rely on reflected energy...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3581908
... Accurate source estimation is an important component in full waveform inversion (FWI). A conventional approach to determine the signature employs transfer function estimation between the observed and modelled data. Depending on the scenario, this might lead to a biased signature due to lacking...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3582926
... and an improved seismic image. Enforcing the structure constraint through the cross-gradient approach allowed the inversion to converge fast. upstream oil & gas history matching applied geoscience fghi exploration geophysicist 10 reservoir characterization inversion 0#$12234524#$1& 00)&12)030/0...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3582618
... coal measure csg reservoir bandanna coal fracture open fracture origin energy summary inversion jurassic walloon coal measure well logging complex reservoir coal exploration geophysicist 10 permeability seismic applications anisotropy The challenges and successes of seismic...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3582815
.... Compared with the results of full wave inversion (FWI), our method not only has the high resolution, but also the high calculation efficiency. reservoir characterization upstream oil & gas u-net neural network applied geoscience artificial intelligence seismic data fwi exploration...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3582621
... & gas gravity data geometry density model applied geoscience joint inversion reservoir characterization log 10 horizontal derivative geophysics inversion equation coincident geometrical coordinate iteration gradient data density geometry exploration geophysicist 10 gramian 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-2021-3582416
... projects run the full spectrum from acquisition through processing to inversion for reservoir properties in a rock physics context. With a small, experienced team and a proven set of workflows, we are able to run our projects and achieve very high quality results faster and at a much lower cost than could...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3582062
... inversion yellow shade subsurface property neural network applied geoscience expanded abstract acoustic impedance magenta abubakar backward ml model Validating the goodness-of-fit of machine learning models through backward models Tao Zhao*, Bhuvaneswari Sankaranarayanan, Haibin Di, and Aria...

Product(s) added to cart

Close Modal