Results 21 to 30 of about 560,268 (250)

Ray Trace Tomographic Velocity Analysis of Surface Seismic Reflection Data [PDF]

, 1988
Recent development of two technologies allows application of a generalized formulation of travel time inversion to very large data sets, such as the surface reflection surveys collected for oil exploration.
Stork, Christof
core   +1 more source

Estimation of gas hydrate concentration from multi-component seismic data at sites on the continental margins of NW Svalbard and the Storegga region of Norway [PDF]

, 2008
High-resolution seismic experiments, employing arrays of closely spaced, four-component ocean-bottom seismic recorders, were conducted at a site off western Svalbard and a site on the northern margin of the Storegga slide, off Norway to investigate how ...
Mienert, J., Chand, S., Westbrook, Graham, Reston, Timothy J., Haacke, R. R., Gei, D., Carcione, JM, Dean, S, Mienert, Jürgen, Gei, D, Minshull, TA, Westbrook, G.K., Madrussani, G, Long, C, Reston, T.J., Westbrook, G. K., Flueh, E., Carcione, J.M., Peacock, S., Foucher, JP, Peacock, S, Bünz, S., Carcione, J. M., Flueh, E, Zillmer, Matthias, Zillmer, M, Camerlenghi, A, Rossi, G., Flueh, Ernst R., Chand, S, Foucher, J-P., Haacke, R.R., Minshull, T. A., Vanneste, M, Haacke, RR, Buenz, S, Minshull, T.A., Nouze, H, Camerlenghi, A., Dean, S., Nouzé, H., Rossi, G, Mienert, J, Reston, Timothy, Long, C., Vanneste, M., Foucher, J.-P., Madrussani, G., Zillmer, M.   +48 more
core   +1 more source

Deep Convolutional Neural Network With Attention Module for Seismic Impedance Inversion

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
Seismic inversion is an approach to obtain the physical properties of the Earth layers from the seismic data, which aids in reservoir characterization. In seismic inversion, spatially variable physical parameters, such as impedance ($Z$), wave velocities
Vineela Chandra Dodda, Lakshmi Kuruguntla, Anup Kumar Mandpura, Karthikeyan Elumalai, Mrinal K. Sen   +4 more
doaj   +1 more source

Amplitude-Versus-Angle (AVA) Inversion for Pre-Stack Seismic Data with L0-Norm-Gradient Regularization

Mathematics, 2023
Amplitude-versus-angle (AVA) inversion for pre-stack seismic data is a key technology in oil and gas reservoir prediction. Conventional AVA inversion contains two main stages.
Ronghuo Dai, Jun Yang
doaj   +1 more source

Propagator and wave-equation inversion for near-receiver material properties [PDF]

, 2004
Near-receiver material properties are required for the separation of the recorded wavefield into upgoing and downgoing P and S waves, and are also important for static time-shift corrections.
Trampert, J., Curtis, A.; id_orcid, van Vossen, R.   +2 more
core   +1 more source

Joint Bayesian Stochastic Inversion of Well Logs and Seismic Data for Volumetric Uncertainty Analysis [PDF]

International Journal of Mining and Geo-Engineering, 2015
Here in, an application of a new seismic inversion algorithm in one of Iran’s oilfields is described. Stochastic (geostatistical) seismic inversion, as a complementary method to deterministic inversion, is perceived as contribution combination of ...
Moslem Moradi, Omid Asghari, Gholamhossein Norouzi, Mohammad Riahi, Reza Sokooti   +4 more
doaj  

Seismic Reflection Coefficient Inversion Using Basis Pursuit Denoising in the Joint Time-Frequency Domain

Energies, 2020
Seismic reflection coefficient inversion in the joint time-frequency domain is a method for inverting reflection coefficients using time domain and frequency domain information simultaneously.
Xuegong Zhao, Hao Wu, Xinyan Li, Zhenming Peng, Yalin Li   +4 more
doaj   +1 more source

A Multi-Point Geostatistical Seismic Inversion Method Based on Local Probability Updating of Lithofacies

Energies, 2022
In order to solve the problem that elastic parameter constraints are not taken into account in local lithofacies updating in multi-point geostatistical inversion, a new multi-point geostatistical inversion method with local facies updating under seismic ...
Zhihong Wang, Tiansheng Chen, Xun Hu, Lixin Wang, Yanshu Yin   +4 more
doaj   +1 more source

Model space dimensionality reduction method of mine seismic wave velocity inversio

Gong-kuang zidonghua, 2018
For problems of slow convergence speed and large calculation amount existed in non-linear inversion methods of mine seismic wave velocity inversion, a model space dimensionality reduction method of mine seismic wave velocity inversion was proposed based ...
CHEN Qing, LIU Xiaowen
doaj   +1 more source

Multichannel seismic impedance inversion based on Attention U-Net

Frontiers in Earth Science, 2023
Recently, seismic inversion has made extensive use of supervised learning methods. The traditional deep learning inversion network can utilize the temporal correlation in the vertical direction.
Juan Ning, Shu Li, Shu Li, Zong Wei, Xi Yang   +4 more
doaj   +1 more source