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The AAPG/Datapages Combined Publications Database

Showing 1,682 Results. Searched 200,619 documents.

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4D joint inversion and close-the-loop for production history matching and forecasting

Kelly Wrobel, J. P. Blangy, Tony Rolland, Evan Mutual, Klaus Bolding Rasmussen, Wendell Pardasie

International Meeting for Applied Geoscience and Energy (IMAGE)

... the Atlantis area. With this data, a least squares regression was applied to calculate the mineral end member values for each mineral constituent of the rock...

2023

Value of marine vibrators for effective frequency-dependent spatial sampling of seismic wavefield

Arash JafarGandomi, Aparajita Nath, Sergio Grion

International Meeting for Applied Geoscience and Energy (IMAGE)

...-gun array signatures from near-gun measurements — least-squares inversion, bubble motion and error analysis: 85th Annual International Meeting...

2023

A Robust Gradient for Long Wavelength FWI Updates

Jaime Ramos-Martinez, Sean Crawley, Kathy Zou, Alejandro Valenciano, Lingyun Qiu, Nizar Chemingui, Andrew Long

Petroleum Exploration Society of Australia (PESA)

... a nonlinear inverse problem by matching modelled seismic data to recorded field data. The matching is quantified by the residuals of a least-squares...

2016

Induced Gamma Ray Spectroscopy (IGS) Log Application in the Java Sea

Cholid Mas, Anna Maria, Mark Schneider, Bambang Hari Setiyawan

Indonesian Petroleum Association

... yield, can be determined by weighted least squares spectral fitting. Figure 3 summarizes the process of obtaining elemental yield. This process...

1996

Optimal transport for elastic source inversion

Tyler Masthay, Björn Engquist

International Meeting for Applied Geoscience and Energy (IMAGE)

... model (M´ tivier et al. (2018)). Cycle e skipping is caused by the nonconvex nature of the misfit optimization landscape in its typical least-squares...

2023

Full-waveform inversion derived prestack reflectivity gathers

Jian Mao, Xin Cheng, Denes Vigh, James Xu, Qiaofeng Wu

International Meeting for Applied Geoscience and Energy (IMAGE)

... events are focused due to the iterative least-squares nature of FWI. There are three anomalies under the salt where we extracted amplitude information...

2023

Survey merging using CycleGAN and patchy seismic images

Chaoshun Hu, Fan Jiang, Konstantin Osypov, Julianna Toms

International Meeting for Applied Geoscience and Energy (IMAGE)

... isolating trace segments in the defined window and derived by least-squares timedomain with a smoothness constraint. However, after applying those...

2023

3D deblending for marine towed-streamer data

Yangkang Chen, Min Zhou, Ray Abma

International Meeting for Applied Geoscience and Energy (IMAGE)

..., S. Fomel, and J. Sun, 2016, Seismic imaging of incomplete data and simultaneous-source data using least-squares reverse time migration with shaping...

2024

Depth conversion and seismic inversion of the Scarborough gas field

Joseph Kremor, Manish Agarwal, Paul Spaans, Ung Sing Wong

Petroleum Exploration Society of Australia (PESA)

...; and A least squares regressor is usually a better noise attenuator than gather stacking. There is therefore a balance between the potential quality...

2019

Insights on time-lapse changes from 4D joint full-waveform inversion in Mississippi Canyon, Gulf of Mexico

Markus Albertz, Vincent Durussel, Tianjiang Li, Gaurav Dutta, Xin Cheng, Oscar Perez, Markos Sourial, Aurora Rodriguez Castelan

International Meeting for Applied Geoscience and Energy (IMAGE)

... near salt flanks. However, due to the nonlinear least-squares approach embedded within FWI and the enhancement in bandwidth achieved during the FWI...

2024

Role of Organic Species Dissolved in Formation Waters from Sedimentary Basins in Mineral Diagenesis

Yousif K. Kharaka, Leroy M. Law, William W. Carothers, Donald F. Goerlitz

Special Publications of SEPM

...). The boundary of Zone 3, where no acid anions are present, is placed at about 200" C and is obtained by extrapolation of the least-squares line of Figure 1...

1986

The application of gradient and curvature calculations based on the eigenstructure of seismic data in imaging geological discontinuities

Shihong Yuan, Ping Chen, Lei Li, Zhenyu Sa, Ruidong Han, Zhen Pang

International Meeting for Applied Geoscience and Energy (IMAGE)

... a quadratic surface to the interpreted horizon using least squares or other approximation methods. This paper proposes a new method using eigenvalue...

2024

Structure of Albertite from New Brunswick, Canada

Ganjavar Khavari-Khorasani

CSPG Bulletin

... curves were fitted to the experimental data by means of a least-squares curve-fit computer program. CARBONIZATION The bitumen sample was carbonized...

1983

Enhanced ray-based tomography method

Jonathan Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

... linear equations and least-squares problems: TOMS, 8, no. 2, 195–209. Zhou, H.-W., 2003, Multiscale traveltime tomography: Geophysics, 68, 1639–1649...

2024

Hydraulic fracture plane identification based on unsupervised learning

Zizhuo Ma, Tao Liu, Junzhou Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

... on the least squares interference method, we obtained the highprecision acoustic emission source location (Figure 6a). We first fit a hydraulic fracture...

2024

Innovation for Conventional Hydrocarbon Exploration with Audio Magnetotelluric Method

Widodo, Durra Handri Saputera, Iqbal Fauzi Aditama, Andriyan Saputra

Indonesian Petroleum Association

... for petroleum exploration in West Siberia. Russian Geology and Geophysics 55 (2014) 763-774. Marquardt, D., 1963, An algorithm for least squares estimation of non...

2015

Magnetic Stratigraphy and Tectonic Rotation of the Oligocene Alsea, Yaquina, and Nye Formations, Lincoln County, Oregon

Donald R. Prothero, Clio Z. Bitboul, George W. Moore, Alan R. Niem

Pacific Section SEPM

... component was estimated using the least squares method of Kirschvink (1980), and averaged using Fisher (1953) statistics. Each site was then ranked...

2001

Magnetic Stratigraphy and Tectonic Rotation of the Lower Miocene (Type Saucesian) Rincon Formation, Ventura and Santa Barbara Counties, California

Donald R. Prothero, Stacey G. Rapp

Pacific Section SEPM

... in single-domain or pseudo-single-domain grains. This main component of remanence was summarized using the least squares method of Kirschvink (1980). Site...

2001

Geology and Geophysics of South Central Zavala and Adjoining Parts of Dimmit Counties, Texas

James A. Noel

GCAGS Transactions

.... The Elaine field is included in the study area. Gravity and magnetic residuals were calculated using the least squares method, and the magnetics...

1984

Numerical modeling of PP and PS reflections in DAS VSP

Joseph J. Cherayil, James L. Simmons

International Meeting for Applied Geoscience and Energy (IMAGE)

..., J. E., K. Hall, D. Trad, and D. C. Lawton, 2021, Least-squares das to geophone transform: First International Meeting for Applied Geoscience & Energy...

2024

Amplitude Versus Offset Gradient Modeling Over a Minnelusa Field

W.E. Johnson

Rocky Mountain Association of Geologists

... an amplitude versus offset gradient analysis might be performed. A least squares fit is made t o the amplitude versus offset for each time sample interval...

1988

Analysis of the influence of bedding-parallel cracks on shale anisotropy based on stress-induced rock physics model

Ying Xu, Feng Zhang, Guohua Niu, Xiangyang Li

International Meeting for Applied Geoscience and Energy (IMAGE)

...’s theory. The Levenberg-Marquardt least squares algorithm to optimize each elastic stiffness 0 coefficients Cij of the crack-free background...

2024

Cementation Exponent and Porosity Correlation -A Useful Petrophysical Tool in the Glorieta-Clearfork Dolomite

Souvick Saha, George B. Asquith

West Texas Geological Society

... Archie Parameters m and n Using Least Squares Summation and dielectric Water Saturations in the PASCAL Computer Program MN; Geobyte, October, p. 24–28...

2020

Recognition of an Oil-Wet Carbonate Reservoir in the Mississippian Chester B-Zone Major County, Oklahoma

G. B. Asquith

West Texas Geological Society

... in Exploration Series, No. 5, 47 p. Asquith, G. B. and Souvick Saha, 1991, Determining Archie Parameters m and n using least squares summation and dielectric...

2020

Coherent attribute enhanced fault recognition method based on histogram homogenization

Qing Zhou, Rui Wu, Chengcheng Xu, Yong Chen

International Meeting for Applied Geoscience and Energy (IMAGE)

... REFERENCES Bednar, J. B., 1998, Least-squares dip and coherency attributes: The Leading Edge, 17, 775–776, doi: https://doi.org/10.1190/1.1438051...

2024

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