Results 41 to 50 of about 20,612 (268)

Seismic Velocity Inversion via Physical Embedding Recurrent Neural Networks (RNN)

Applied Sciences, 2023
Seismic velocity inversion is one of the most critical issues in the field of seismic exploration and has long been the focus of numerous experts and scholars.
Cai Lu, Chunlong Zhang
doaj   +1 more source

Improved hydrogeophysical characterization using joint inversion of cross-hole electrical resistance and ground-penetrating radar traveltime data. [PDF]

, 2006
Appropriate regularizations of geophysical inverse problems and joint inversion of different data types improve geophysical models and increase their usefulness in hydrogeological studies.
Revil, Andre, Linde, Niklas, Linde, Niklas,, Pedersen, Laust B.,, Tryggvason, Ari, Pedersen, Laust B., Binley, Andrew, Tryggvason, Ari,   +7 more
core   +1 more source

THE DIRECT-INVERSION DECONVOLUTION AND ITS APPLICATION IN SEISMIC DATA

JGE, 2022
Seismic traces are generated by the convolution of reflectivity and seismic wavelet. Due to limited frequency bandwidth, reflectivity can not be resolved easily.
Iktri Madrinovella, Waskito Pranowo
doaj   +1 more source

Prediction of petrophysical properties through comparative post-stack inversion techniques using advance Neural Networking

Kuwait Journal of Science, 2022
The sophisticated seismic inversion methodology can develop the relationship between the interpreted seismic data and the elastic properties of the reservoir.
Pal Washa Shahzad Rathore, Matloob Hussain, Muhammad Bilal Malik, Sher Afgan   +3 more
doaj   +1 more source

4D-seismic-neural-inversion [PDF]

, 2019
Deep Neural Networks for Map-Based 4D Seismic Pressure-Saturation ...
Jesper Soeren Dramsch (5622362)
core   +1 more source

Application of gravity inversion technology in prediction of ultra-deep reservoirs： A case study of central Junggar Basin

Youqi dizhi yu caishoulu
There is great exploration potential for ultra-deep reservoirs in Junggar Basin， and reservoir prediction with seismic data is the main technical means of oil and gas exploration at present.
CHEN Xueguo, XIANG Peng, ZHANG Jianhua, BAN Li, WU Wei, GUO Tao, FENG Guozhi   +6 more
doaj   +1 more source

Spectral-Element Simulations of 3-D Seismic Wave Propagation and Applications to Source and Structural Inversions [PDF]

, 2006
This thesis presents a concise introduction to the spectral-element method and its applications to the simulation of seismic wave propagation in 3-D earth models.
Liu, Qinya
core   +1 more source

Wave Equation‐Based Local Traveltime Inversion

Earth and Space Science, 2020
Full waveform inversion (FWI) is a strongly nonlinear optimization problem, which suffers from cycle skipping when the initial velocity model is not good enough or the seismic data lack low frequencies.
Y. Hu, L. G. Han, Y. S. Liu, Z. Y. Jin
doaj   +1 more source

Redescription of the Triassic cynodont Cistecynodon parvus and reassessment of its phylogeny

The Anatomical Record, EarlyView.
Abstract Cynodontia is an important subclade of Therapsida that first occurred in the late Permian. It includes extinct subclades which are the non‐mammaliaform cynodonts and Mammaliaformes, with the latter ultimately giving rise to crown mammals. The systematics of non‐mammaliaform cynodonts has been extensively studied and is relatively well‐resolved,
Erin S. Lund, Frederik P. Wolvaardt, Roger M. H. Smith, Jaganmoy Jodder, Julien Benoit   +4 more
wiley   +1 more source

Post-stack inversion of seismic reflection data from the belvoir coalfield [PDF]

, 1995
Post-Stack inversion of reflection data in seismic exploration can be used to obtain detailed information about lithology variations in the zone of interest. Generalized Linear Inversion (GLI) has previously been applied as a useful tool to achieve this.
Gang, Tian
core