Results 191 to 200 of about 600,749 (229)

Reservoir Hydrocarbon Identification Method Based on Prestack Seismic Frequency-Dependent Anisotropic Inversion

IEEE Transactions on Geoscience and Remote Sensing, 2023
In an anisotropic reservoir, it is crucial to determine the anisotropic media fluid factor that corresponds to the reservoir’s anisotropic properties. To address the lack of research on accurate hydrocarbon identification and fluid factors in anisotropic
T. Lan, Z. Zong, Weihua Jia
semanticscholar   +1 more source

Elastic prestack seismic inversion through discrete cosine transform reparameterization and convolutional neural networks

, 2020
We have developed a prestack inversion algorithm that combines a discrete cosine transform (DCT) reparameterization of data and model spaces with a convolutional neural network (CNN).
M. Aleardi, A. Salusti
semanticscholar   +1 more source

Azimuthal Prestack Seismic Anisotropic Inversion on a Deep and Tight Carbonate Reservoir From the North Potwar Basin of Pakistan

SPE Reservoir Evaluation & Engineering, 2023
Quantitative characterization of deep, tight, and heterogeneous reservoirs plays an important role in identifying hydrocarbon pathways for effective and optimal reservoir field development.
M. Z. A. Durrani, Syed Atif Rahman, M. Talib, G. Subhani, Bakhtawer Sarosh   +4 more
semanticscholar   +1 more source

Prestack Seismic Data Inversion for Shale Gas Reservoir Characterization in China

78th EAGE Conference and Exhibition 2016, 2016
Summary An integrated study of well Zhao-104 and surrounding wide-azimuth 3D seismic data volume within the shale gas reservoir in South China has been conducted with the objective of generating shale formation properties related to fracture orientation and intensity in the area and deriving such reservoir rock properties. Well data, structural seismic
Gang Yu, Yusheng Zhang, Ximing Wang, Xing Liang, Uwe Strecker, Maggie Smith   +5 more
openaire   +1 more source

Compensating Low-Frequency Signals for Prestack Seismic Data and Its Applications in Full-Waveform Inversion

IEEE Transactions on Geoscience and Remote Sensing, 2023
Cycle-skipping problem is one of the major impediments for full-waveform inversion (FWI) to accurately recover subsurface velocity models. The multiscale inversion scheme is a practical and robust strategy to mitigate the cycle-skipping issue.
Xiu-Gang Xu, Peng Guo, Ji-Dong Yang, Wen-Liang Xu, Siyou Tong   +4 more
semanticscholar   +1 more source

An Intelligent Prestack Seismic Inversion Framework Using the Propagator Matrix Method

IEEE Geoscience and Remote Sensing Letters
Simultaneous inversion of P-wave velocity, S-wave velocity, and density remains a major challenge in quantitative seismic interpretation. Conventional inversion techniques based on the Zoeppritz equations and their approximations often fail to adequately
Sheng-Huang Li, Sanyi Yuan, Lu Qin, Shang-Xu Wang   +3 more
semanticscholar   +1 more source

Nonlinear elastic inversion of prestack marine seismic data

Proceedings of the IEEE, 1989
A horizontally stratified medium consisting of a fluid layer overlaying any number of solid layers is considered. The depth distribution of the density and of the two elastic parameters from prestack offshore surface data is to be determined. The inverse problem is posed in terms of optimization. Its solution is based on nonlinear least squares.
F. Assous, B. Chalindar, F. Collino
openaire   +1 more source

Stability-Improved Prestack Seismic Inversion Based on Orthogonal Learning Hybrid Particle Swarm Optimisation

, 2020
Summary Prestack seismic inversion quantitatively converts seismic data into multiple elastic properties, supporting the exploration of subsurface reservoirs in detail.
Q. Guo, K. Jin, C. Luo
semanticscholar   +1 more source

Stochastic prestack seismic inversion using fractal prior

SEG Technical Program Expanded Abstracts 2009, 2009
Summary A deterministic inversion of band-limited seismic data produces smooth models which are devoid of high frequency variations observed in well logs. Stochastic inversion methods often based on Gaussian priors can produce high frequencies in the desired model.
Ravi Prakash Srivastava, Mrinal K. Sen
openaire   +1 more source

Two-parameter prestack seismic inversion of porosity and pore structure parameter of fractured carbonate reservoirs: Part 1 — Methods

Interpretation, 2018
Fractured zones in deeply buried carbonate hills are important because they often have better permeability resulting in prolific production than similar low-porosity rocks.
Tingting Zhang, Yue-Feng Sun
semanticscholar   +1 more source