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The AAPG/Datapages Combined Publications Database

Showing 1,680 Results. Searched 200,357 documents.

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Abstract: Biot-Gassmann Fluid Term Extraction Based on PP-PS Joint Inversion;

Qi Ma

Search and Discovery.com

... of generalized linear inversion and the iterative reweighed least-squares algorithm are applied to solve this function. Tests with synthetic data show...

Unknown

Abstract: Deep Learning Inversion on Seismic Cubes; #91204 (2023)

Aleksandr Koriagin, Alexey Kozhevin, Stepan Goriachev, Roman Khudorozhkov

Search and Discovery.com

... each patch to fit the already assembled overlap via least-squares regression. Lastly we show how one can evaluate the assembled velocity model...

2023

Empirical Models for Predicting CO2 Concentrations in North Sumatra

C. M. Reaves, A. Sulaeman

Indonesian Petroleum Association

... in this format and a least-squares linear regression was run to enable comparison with the North Sumatra data. CO2 partial pressures in clastic reservoirs from...

1994

Abstract: Making FX Interpolation More Robust by Spectrum-guided Reconstruction; #90171 (2013)

Mostafa Naghizadeh and Mauricio Sacchi

Search and Discovery.com

... the least-squares method (Duijndam et al., 1999). We illustrate with synthetic examples that the proposed method can handle gaps and extrapolation problems...

2013

Applications of Kirchhoff Least-Squares Migration: Towards Reservoir Imaging; #42183 (2018)

Francesco Perrone, Graham Roberts, Lorenzo Casasanta, Andrew Ratcliffe, Arash Jafargandomi, Karen Purcell

Search and Discovery.com

...Applications of Kirchhoff Least-Squares Migration: Towards Reservoir Imaging; #42183 (2018) Francesco Perrone, Graham Roberts, Lorenzo Casasanta...

2018

Image processing of jointly acquired 3D DAS-VSP data with an OBN survey in the Middle East

G. Yu, H. Liu, Y. Zhang, H. Chen, X. Li, L. Duan, G. Cambois, J. Cowell, J. Mason, Y. Chen, J. Wu

International Meeting for Applied Geoscience and Energy (IMAGE)

... minimizing the following least-squares misfit objective function between the simulated data 𝑑(𝑥 𝑟 ; 𝑡; 𝑥 𝑠 ) and the field data...

2024

End-Member Feldspar Concentrations Determined by FTIR Spectral Analysis

Abigail Matteson, Michael M. Herron

Journal of Sedimentary Research (SEPM)

... FTIR spectra were constructed from sample spectra and their associated K-, Na- and Ca- feldspar concentrations using a least-squares full spectrum...

1993

Seismic Trace Interpolation using Adaptive Prediction Filters

Search and Discovery.com

... interpolation strategy based on overlapping adjacent windows, we have adopted the Recursive Least Squares method to update the prediction error filters...

2013

Data Analysis and Model Development

Alan P. Byrnes

Special Publications of SEPM

... methodology commonly util­ ized is least squares regression analysis. This analysis is easy to perform, allows easy conceptual examination of the regressions...

1994

Q-LSRTM using viscoacoustic VTI wave equation based on the nearly constant Q model

Zhang Shan-Shan, Gu Bing-Luo, Li Zhen-Chun

International Meeting for Applied Geoscience and Energy (IMAGE)

.... In this paper, we present a Q-compensated least-squares reverse time migration method in viscoacoustic VTI media (Q-VTI-LSRTM) using the pure qP-wave...

2022

Abstract: Velocity Model Building with Weighted Linearized Inversion … A VSP Data Case Study; #90187 (2014)

Mingyu Zhang, Richard Kuzmiski, and Zhengsheng Yao

Search and Discovery.com

... velocity model where the prediction error between modeled data and observed data is minimal in a least squares sense, i.e. AAPG Search and Discovery...

2014

Advanced Caliper Processing for Early Detection of Casing Problems

Barry Nicholson

Indonesian Petroleum Association

...-fingered caliper to extract this parameter. The new eccentralization technique uses a least squares fitting and optimization routine that allows accurate...

1996

Operator chains and seismic data decomposition

Sergey Fomel

International Meeting for Applied Geoscience and Energy (IMAGE)

...ficient approximations is seismic least-squares migration (Nemeth et al., 1999). Compared to the conventional migration, the effect of the least-squares...

2022

Modeling the Semivariogram: New Approach, Methods Comparison, and Simulation Study

A. Gribov, K. Krivoruchko, J. M. Ver Hoef

AAPG Special Volumes

... procedure using modified iterative weighted least squares is presented. This algorithm is shown to be reliable for a wide range of data types...

2006

High resolution imaging using multiples „ A North Sea case study

Chandan Kumar, Rodney Johnston, Petr Jilek, Xiaolei Song, Mikhail Davydenko

International Meeting for Applied Geoscience and Energy (IMAGE)

... In this paper, we propose a workflow based on least-squares full wavefield migration (LS-FWM). It can make use of raw hydrophone and geophone data...

2024

Application of high-end seismic imaging technologies for field development in NWS Australia

Min Lee Chua, Kai Zhao, Narcisa Lazarescu, Wai King Yong, Sergey Birdus, Alexey Artemov, Xiang Li

Petroleum Exploration Society of Australia (PESA)

... will review here are (1) demultiple workflow with 3D curvelet domain subtraction, (2) hybrid Tomo-FWI velocity model building, and (3) Least-Squares Q Pre...

2019

Development of Raman Spectroscopy as a Thermal Maturity Proxy in Unconventional Resource Assessment

Grant Myers, Kelsey Kehoe, Paul Hackley

Unconventional Resources Technology Conference (URTEC)

... (MS-2671253). Similar strong relationships occurred in the Duvernay samples with respect to increasing maturity when using Partial Least-Squares analysis...

2018

Least-squares reverse time migration of seismic source coding based on Shearlet transform

Yingkaer Nabi, Xiangbo Gong, Zhuo Xu

International Meeting for Applied Geoscience and Energy (IMAGE)

...Least-squares reverse time migration of seismic source coding based on Shearlet transform Yingkaer Nabi, Xiangbo Gong, Zhuo Xu Least-squares reverse...

2022

Use of Ridge Regression Analysis in Geology: ABSTRACT

Thomas A. Jones

AAPG Bulletin

... distributed variables. The least-squares estimates of the regression coefficients commonly differ from the true coefficients if the independent variables...

1971

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