Results 81 to 90 of about 240,017 (204)

Poststack Seismic Geomechanical Property Evaluation of the Pennsylvanian Strawn–Canyon Group in Salt Creek Field, Midland Basin, Kent County, West Texas

Geosciences
Geomechanical properties of rock are essential components in designing hydraulic fracturing procedures. Although ultrasonic measurement methods are usually utilized to obtain static geomechanical properties of rocks in the laboratory, they are limited to
Osareni C. Ogiesoba, Fritz C. Palacios
doaj   +1 more source

A novel prestack sparse azimuthal AVO inversion

, 2017
In this paper we demonstrate a new algorithm for sparse prestack azimuthal AVO inversion. A novel Euclidean prior model is developed to at once respect sparseness in the layered earth and smoothness in the model of reflectivity. Recognizing that methods of artificial intelligence and Bayesian computation are finding an every increasing role in ...
Lasscock, B. G., Sansal, T. A.
openaire   +2 more sources

Joint-Covariance-Guided Prestack Probabilistic Inversion of Elastic Parameters with Physics Constraints

Seismic inversion plays an essential role in reservoir characterization and hydrocarbon evaluation. However, the lack of low-frequency information, noise contamination, sparse well constraints, and elastic-parameter coupling significantly exacerbate the ...
Peng Wang, Bingbing Zhu, Qinghui Mao, Ke Pan, Xiaoyang Wang   +4 more
core   +1 more source

Image source detection for geoacoustic inversion by Teager-Kaiser energy operator [PDF]

, 2014
This letter presents an improvement of the image source method (ISM) for geoacoustic inversion. The new algorithm is based on the Teager-Kaiser Energy Operator which ampli es the discontinuities in signals while the soft transitions are reduced.
DRIRA, Achraf, Laurent Guillon, GUILLON, Laurent, Achraf Drira, BOUDRAA, Abdel-Ouahab, Abdel-Ouahab Boudraa   +5 more
core   +1 more source

Uncertainty aware pre-stack seismic inversion using probabilistic neural networks

Franklin Open
Seismic inversion, the process of inferring subsurface properties from seismic signals, is a crucial tool to monitor underground structures in applications such as geotechnical engineering, environmental studies, civil engineering, and archaeology.
Marco Morik, Erick Costa e Silva Talarico, Matheus Cafaro Arouca Sobreira, Luiz Alberto Barbosa de Lima, Shinichi Nakajima   +4 more
doaj   +1 more source

4D simultaneous PP-PS prestack inversion: the Edvard Grieg field, Norwegian North Sea

, 2020
Includes bibliographical references.2020 Summer.The Edvard Grieg oil field was discovered in 2007 in the Norwegian North Sea and is operated by Lundin Energy Norway. The field is in the production stage.
Daneshvar, Sima
core  

A note on the Smarandache inversion sequence [PDF]

, 2007
In a recent paper, Muneer introduced the Smarandache inversion sequence. In this paper, we study some properties of the Smarandache inversion sequence. Moreover, we find the necessary and su±cient condition such that [SI(n)]2 + [SI(n + 1)]2 is a perfect
Majumdar, A.A.K.
core   +1 more source

Pre-stack seismic inversion based on model-constrained generative adversarial network

Frontiers in Earth Science
Pre-stack seismic inversion usually uses various traditional algorithms to estimate elastic parameters such as P-wave velocity, S-wave velocity, and density.
Guangzhi Zhang, Guangzhi Zhang, Guangzhi Zhang, Sirui Song, Sirui Song, Sirui Song, Haihang Zhang, Dekuan Chang, Dekuan Chang   +8 more
doaj   +1 more source

An ATpV Regularization Pre-Stack Three-Parameter Inversion Method Based on Weighted Lp

IEEE Access
Accurate inversion of AVO tri-parameters (Vp, Vs, $\rho $ ) is critical for reservoir characterization and hydrocarbon exploration. Conventional pre-stack inversion methods often have ill-posedness and poor stratigraphic boundary preservation, and ...
Shuang Zhao, Xuanlin Kong, Hongjuan Fan, Yabo Wu, Weixing Guo   +4 more
doaj   +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