Results 11 to 20 of about 267,234 (181)

Machine-Learning Enhanced AVA Inversion for Flow Model Generation [PDF]

81st EAGE Conference and Exhibition 2019, 2019
Summary The process of going from course-scale seismic reservoir parameters produced from AVA inversion to a fine-scaled reservoir permeability model that fits production data usually results in a permeability and associated seismic parameter model that fits production data but not the original input seismic data.
Hoversten, GM, Chen, J, Commer, M
core   +8 more sources

Inversion of seismic AVA data for porosity and saturation [PDF]

, 2013
Rock physics serves as the link between reservoir parameters and the effective elastic reservoir properties, and Amplitude Variation with Angle (AVA) modelling serves as the link between elastic properties and reflection coefficients. AVA inversion is one of the techniques that is being used to estimate sub-surface physical parameters such as ...
Apeland, Brikt Anders
openaire   +2 more sources

The Relationship Between Neonatal and Maternal Factors and the Timing of Primary Tooth Eruption in Preterm Infants: An Observational Study in Iran. [PDF]

Health Sci Rep
ABSTRACT Background and Aims Preterm birth is known to be associated with delayed primary tooth eruption, yet data on the factors influencing this delay in premature infants remain sparse. This study aims to investigate neonatal and maternal factors affecting the timing of the first primary tooth eruption.
Farani AK, Parsaei M, Taghizadeh A, Kharazifard MJ, Manifar S, Koopaie M, Zarkesh MR, Hantoushzadeh S.   +7 more
europepmc   +2 more sources

P-Wave Reflection Approximation of a Thin Bed and Its Application

Applied Sciences, 2020
“Thin-bed” reservoirs have become important targets of seismic exploration and exploitation. However, traditional amplitude versus offset/amplitude versus angle (AVO/AVA) technologies, for example, those based on Zoeppritz equations and their ...
Chun Yang, Yun Wang, Shu Xiong, Zikun Li, Hewei Han   +4 more
doaj   +1 more source

Direct Reservoir Parameter Estimation Using Joint Inversion ofMarine Seismic AVA&CSEM Data [PDF]

, 2005
A new joint inversion algorithm to directly estimate reservoir parameters is described. This algorithm combines seismic amplitude versus angle (AVA) and marine controlled source electromagnetic (CSEM) data.
Gasperikova, Erika, Hoversten, G. Michael, Cassassuce, Florence, Rubin, Yoram, Zhangshuan, Hou, Vasco, Don, Newman, Gregory A.   +6 more
core   +1 more source

Reservoir fluid determination from angle stacked seismic volumes in ‘Jay’ field, Niger Delta, Nigeria

Journal of Applied Sciences and Environmental Management, 2018
The study was carried out to investigate the dissimilar seismic amplitude responses observed in sandstone reservoirs with the same fluid saturation. This challenge now informed the analysis of different amplitude responses from the ‘Jay’ Field in order ...
L Adeoti, O.J. Allo, E.A. Ayolabi, A Akinmosin, S Oladele, T Oyeniran, M.A. Ayuk   +6 more
doaj   +1 more source

A High Resolution Method for Fluid Prediction Based on Geostatistical Inversion

International Journal of Geophysics, 2013
In order to predict the fluid in thin layer precisely, this paper proposed a high-resolution method for fluid prediction. The method used geostatistical inversion with lithology masks to calculate water saturation.
Zhen Yu, Jing He
doaj   +1 more source

Target-oriented, AVA-petrophysical Inversion through Anisotropic Markov Random Field

, 2018
We implement an AVA-petrophysical inversion that uses an anisotropic Markov random field to model the lateral variability of petrophysical properties. A Bayesian framework is adopted for transforming pre-stack data to the maximum-a-posteriori solution of
T. Gukov, M. Aleardi, F. Ciabarri
core   +1 more source

Multiparameter Inversion of Seismic Pre-Stack Amplitude Variation with Angle Based on a New Propagation Matrix Method

Applied Sciences
The classical pre-stack seismic inversion technique uses the Zoeppritz equation and its simplified versions to calculate the PP and PS reflection coefficients at different incidence angles, aiding in inverting the subsurface velocity and density ...
Qianlong Ding, Shuangquan Chen, Jinsong Shen, Zuzhi Hu, Guoquan Wang   +4 more
doaj   +1 more source

New‐Generation Integrated Devices: Multiple‐Energy Utilization and Integration Systems Based on Perovskite Photovoltaics

EcoEnergy, EarlyView.
This review highlights emerging integrated energy systems based on perovskite photovoltaics, including PSC–thermoelectric, photovoltaic–electrochemical, self‐charging, and building‐integrated architectures. By coupling multiple energy conversion and storage pathways, these multifunctional platforms enable enhanced solar utilization, improved stability,
Yihuai Huang, Wenguang Zhang, Yuchen Xiong, Zijun Yi, Changkai Huang, Qinghui Jiang, Abdul Basit, Guibin Shen, Yubo Luo, Xin Li, Junyou Yang   +10 more
wiley   +1 more source