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The AAPG/Datapages Combined Publications Database

Showing 1,680 Results. Searched 200,293 documents.

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Generalized internal multiple elimination

Dongliang Zhang, Constantinos Tsingas, Mohammed S. Almubarak

International Meeting for Applied Geoscience and Energy (IMAGE)

...://doi.org/10.3997/2214-4609.20130836. Zhang, D., and G. Schuster, 2014, Multiples least-squares reverse time migration: Geophysics, 79, no. 1, S11–S21...

2022

Algorithm Comparison with Cross Sections: Appendix A

David E. Hamilton, Thomas A. Jones

AAPG Special Volumes

... of algorithms. Figure 1 is a map showing the distribution and values of the synthetic data with contours drawn using a least-squares gridding algorithm...

1992

Some Geological Applications of Trend-Surface Analysis: ABSTRACT

W. A. Read

AAPG Bulletin

... by power-series polynomials, fitted by the least-squares method to areal geological data. The technique allows the regional component, represented...

1967

Geochemical determination of heavy oil viscosity using multivariate statistical algorithms, #90110 (2010)

Jennifer Adams, Barry Bennett, Lloyd Snowdon, Steve Larter

Search and Discovery.com

... viscosity measurements, which often reveal error introduced via sample handling and analysis. Here we present multivariate statistical partial least squares...

2010

Abstract: Least-Squares Measurement of Shear-Wave Splitting; #90211 (2015)

Richard Bale, Jianchao Li, Bruce Mattocks, and Shuki Ronen

Search and Discovery.com

...Abstract: Least-Squares Measurement of Shear-Wave Splitting; #90211 (2015) Richard Bale, Jianchao Li, Bruce Mattocks, and Shuki Ronen Datapages...

2015

Improved subsalt imaging in Brazil Campos basin Cascaded application of hybrid interbed demultiple, P- and S-salt velocity joint migration, and subsalt converted wave suppression

Riaz Alai, Faqi Liu, Darrell Armentrout, David Brookes, Terry Johnson, Milos Cvetkovic, Gundogan Coskun, Shah Sulaiman, Kien Kok Lee, Afiq Mokhtar, Christopher Lee Slind, Hafizan Wahab, Wan Ching Low, Ali Andrea B. Hashim

International Meeting for Applied Geoscience and Energy (IMAGE)

... Top of Salt • Marchenko method - between Top and Base of Salt and through a simultaneous Least-Squares matching with the data, the estimated interbed...

2022

CGG 3D Surface-Related Multiple Modelling: A Unique Approach, #41590 (2015).

David Le Meur, Antonio Pica, Terje Weisser

Search and Discovery.com

.... Introduction Multiple generation “squares” (at least for first order multiples) the degree of complexity of the reverberated reflected energy...

2015

Horizon detection with CNN-based multiscale volumetric flattening

Jesse Lomask

International Meeting for Applied Geoscience and Energy (IMAGE)

... surfaces are subsequently fitted to these dips using least squares inversion. This method is demonstrated on 3D seismic using both 2D and 3D CNNs...

2023

Machine learning and explainable AI for predicting missing well log data with uncertainty analysis: A case study in the Norwegian North Sea

Sushil Acharya, Karl Fabian

International Meeting for Applied Geoscience and Energy (IMAGE)

... regression, Principal Component Regression (PCR), Partial Least Squares Regression (PLSR), random forest, and bidirectional long short-term memory (Bi-LSTM...

2024

Facies-based inversion through integrating elastic full-waveform inversion and high-frequency imaging data

David Tang, Valeriy Brytik, Olivier Burtz, Young Ho Cha, Partha Routh, Ratnanabha Sain, Jay Barr, Dez Chu, Michael Gutierrez, Jeffrey Sitgreaves, Jacob Utley, Guy Medema, Alison Scribner

International Meeting for Applied Geoscience and Energy (IMAGE)

... these issues, we integrate low-frequency eFWI models, facies information from wells, and least-squares reverse time migration (LSRTM) imaged stacks...

2022

Quantifying multiple source rock contributions to petroleum fluids: Bias in using compound ratios and neglecting the gas fraction

Andrew P. Murray and Kenneth E. Peters

AAPG Bulletin

... genetic classifications. Mixture deconvolution by alternating least squares regression of ratios can seriously underestimate the contribution of the gas...

2021

3D Seismic Data Interpolation by Frequency Domain Local 2D Prediction

Xishuo Wang

Search and Discovery.com

... the seismic trace is FFT’ed from time to the frequency domain. Spatial prediction can then be done in any number of dimensions, at most in 4D or at least...

Unknown

3D Seismic Data Interpolation by Frequency Domain Local 2D Prediction

Xishuo Wang

Search and Discovery.com

... the seismic trace is FFT’ed from time to the frequency domain. Spatial prediction can then be done in any number of dimensions, at most in 4D or at least...

Unknown

ABSTRACT: Pyrite Grain-Size Distribution and Pyritic Sulfur Reduction in Ohio Coals: A Statistical Relationship

Mainak Mazumdar, Richard W. Carlton, Gino A. Irdi

The Society for Organic Petrology (TSOP)

... analysis was used to obtain the relationship between 0 and 6, aryd pyritic sulfur reduction at 1.60. A least squares regression equati~n was obtained...

1987

Improved Calibration of the Absolute Thermal Maturity of Coal-Sourced Oils and Gas Condensates Using PLS Regression; #10480 (2013)

R. Sykes and K.-G. Zink

Search and Discovery.com

... a new method for predicting absolute maturities of coal-sourced oils and gas condensates based on Partial Least Squares (PLS) regression. The use...

2013

Three common statistical missteps we make in reservoir characterization

Frank Male and Jerry L. Jensen

AAPG Bulletin

... of various disciplines is needed. Here, we look at three misapplications of ordinary least squares linear regression (LSLR), show how they can lead to poor...

2022

Micro transient EM for seismic sand corrections through physics-coupled deep learning

Daniele Colombo, Ersan Turkoglu, Ernesto Sandoval-Curiel, Javier Giraldo-Buitrago

International Meeting for Applied Geoscience and Energy (IMAGE)

... and physics-driven least-squares inversion. The procedure provides a sharp mapping of the shallow BoS resulting in the improvement of the seismic images...

2022

Predicting Estimated Ultimate Recovery from Flowing Material Balance Analysis Considering Rock and Connate Water Expansion for Unconventional Gas Reservoirs

Aykut Atadeger, Mustafa Onur, Leslie G. Thompson, Barry A. Ruddick

Unconventional Resources Technology Conference (URTEC)

...ions. Here, we use the robust straight-line fitting technique presented by Schlossmacher (1973) to avoid susceptibility of ordinary least-squares ...

2021

Demultiple of High Resolution P-Cable Data in the Norwegian Barents Sea „ An Iterative Approach

A.J. Hardwick, S. Jansen, B. Kjolhamar

Petroleum Exploration Society of Australia (PESA)

... ratio. is applied on cascaded 2:1 of SRME Figure 3: Iterative multiple prediction and top of the least-squares adaption result adaptive subtraction...

2017

Abstract: Parallel Implementation of Pre-stack Least-squares Migration for Distributed Systems; #90171 (2013)

Sam T. Kaplan

Search and Discovery.com

...Abstract: Parallel Implementation of Pre-stack Least-squares Migration for Distributed Systems; #90171 (2013) Sam T. Kaplan Parallel Implementation...

2013

Interbed multiple attenuation with an automatic spatially adaptive thresholding operator: A case study in the North Louisiana Salt Basin

Joel Latchman, Rika Burr, Jonathan Woolley, Anna Nolan, Bin Gong, Jinming Zhu, Fang Yuan

International Meeting for Applied Geoscience and Energy (IMAGE)

... energy but perform poorly in areas with similar dip. We present a novel method based on Least-Squares subtraction that automatically adapts the predicted...

2024

Spectral Recomposition in Stratigraphic Interpretation, #41376 (2014)

Yihua Cai, Sergey Fome, Hongliu Zeng

Search and Discovery.com

... discontinuities. We propose separable nonlinear least-squares estimation in spectral recomposition. Employing the Gauss-Newton method, separable...

2014

Abstract: Coherence and Measures of Coherence: An Advanced 3D Interpretive Processing Application

Leong Lap Sau, Ng Tong San

Geological Society of Malaysia (GSM)

... by fitting planes using orthogonal least squares based on the Hotelling (Karhunen-Loeve) Transform. The technique for finding this transformation...

1997

Thermal Subsidence: Chapter 4

Charles L. Angevine, Paul L. Heller, Chris Paola

AAPG Special Volumes

... a tectonic subsidence data set in a least-squares sense. There is nothing sacred about least-squares curve-fitting techniques. In the real world...

1990

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