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The AAPG/Datapages Combined Publications Database

Showing 2,819 Results. Searched 200,293 documents.

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A study on lossy compression for background wavefield storage in LSM

Átila Saraiva Quintela Soares, Mauricio Sacchi

International Meeting for Applied Geoscience and Energy (IMAGE)

... performance bottleneck consists of the requirement to preserve the forward background wavefield for computing the gradient via the adjoint state method during...

2024

Seismic Foldout: Cryptic Seismic Clues: Hunting for another Source Rock in the South AtlanticŽ

Neil Hodgson, Lauren Found, Karyna Rodriguez, Searcher

GEO ExPro Magazine

... for a conjugate leap from the significant discoveries of Namibia’s Orange Basin to the unexplored Pelotas Basin of Southern Brazil and Uruguay is upon us...

2023

Abstract: Spatial distribution and grades of conjugate veins associated with mesothermal saddle reef gold mineralization, The Ovens, Nova Scotia: implications for an open pit resource

Donnette M. Mugridge

Atlantic Geology

...Abstract: Spatial distribution and grades of conjugate veins associated with mesothermal saddle reef gold mineralization, The Ovens, Nova Scotia...

2000

Central Atlantic Conjugate Margin Development: Paleoreconstructions, Basin Evolution, and Implications for Hydrocarbon Exploration; #90131 (2011)

Paul J. Post, Erin T. Elliott, William G. Dickson, and Mark E. Odegard

Search and Discovery.com

...Central Atlantic Conjugate Margin Development: Paleoreconstructions, Basin Evolution, and Implications for Hydrocarbon Exploration; #90131 (2011...

2011

The in situ Stress Field of the Cooper Basin and its Implications for Hot Dry Rock Geothermal Energy Development

S. D. Reynolds, S. D. Mildren, R. R. Hillis, J. J. Meyer

Petroleum Exploration Society of Australia (PESA)

... Basin, an area with a high geothermal gradient. The in situ stress field and natural fracture network are critical to the design of the subsurface...

2004

Determination of Well Productivity Using Pump Downtime Data

Jeff Spath

Indonesian Petroleum Association

... to facilitate the matching. Either the modified Newton-Raphson or conjugate-gradient approach is suggested, given the monotonically increasing relationship...

2000

Structural Modelling of a Fractured Carbonate Reservoir Analogue: A Structural and Numerical Understanding of a Conjugate Fracture Network with an Application to Fluid Flow and Cave System Development, #42327 (2018).

Quinten Diede Boersma, Hilario Bezerra, Giovanni Bertotti

Search and Discovery.com

...Structural Modelling of a Fractured Carbonate Reservoir Analogue: A Structural and Numerical Understanding of a Conjugate Fracture Network...

2018

Defining Frontier Petroleum Systems with Higher Granularity: Examples from Plate Reconstructions of the Atlantic Margins; #30337 (2014)

William Dickson, Craig F. Schiefelbein, Mark E. Odegard, and John E. Zumberge

Search and Discovery.com

... generation. Our poster presents snapshots from an ongoing project that addresses both shortcomings with examples from the South Atlantic conjugate margins...

2014

Oblique Convergence During Northeast-Southwest Laramide Compression Along the East-West Owl Creek and Casper Mountain Arches, Central Wyoming

Philipp C. Molzer, Eric A. Erslev

AAPG Bulletin

.... In the eastern Owl Creek Mountains, average slip directions given by slickenline directions trend from N37°E to N57°E. Geometric analysis of conjugate...

1995

A gradient-free Bayesian full-waveform inversion approach for background model uncertainty quantification

Shuhua Hu, Zeyu Zhao, Fuchun Gao, Faqi Liu, Shuo Zhang, Mrinal K. Sen

International Meeting for Applied Geoscience and Energy (IMAGE)

... MCMC sampling possible. In this abstract, we present a gradient-free FWI method in Bayesian inference framework as Figure 1 shows. We use DCT-based...

2024

Abstract: 3D Focusing Inversion of Multi-transient EM Data in the Frequency Domain; #90171 (2013)

Guangpin Li, Johnathan Linfoot, and Bruce Hobbs

Search and Discovery.com

... the re-weighted conjugate gradient algorithm to solve the minimization problem (2) (Zhdanov et al., 2008). As EM resolution decreases rapidly with depth...

2013

Scale reduction using magnetotellurics … a mineral exploration example from the Olympic Domain, South Australia

Stephan Thiel, Kate Robertson, Wenping Jiang

Petroleum Exploration Society of Australia (PESA)

.... Preliminary results of the 3D inversion of all MT stations using a smooth non-linear conjugate gradient algorithm (Egbert and Kelbert, 2012; Kelbert et al...

2019

Abstract: How conjugate margins enhance our understanding of lithospheric processes while reducing risk in frontier exploration

Douglas A. Paton, Paul Markwick, Mohamed Gouiza, Estelle Mortimer, Karyna Rodriguez

Atlantic Geology

...Abstract: How conjugate margins enhance our understanding of lithospheric processes while reducing risk in frontier exploration Douglas A. Paton...

2018

Abstract: Robust Singular Spectrum Analysis for Erratic Noise Attenuation; #90187 (2014)

Ke Chen and Mauricio D. Sacchi

Search and Discovery.com

... Gaussian noiseleast squares (CGLS) algorithm (??). Our synthetic and real by the Conjugate Gradient but it cannot eliminate erratic noise (non...

2014

Basin architecture from high-resolution gravity gradient, magnetic, and seismic data, King Sound, Canning Basin, Western Australia

Peter Kovac, Sharon Lowe, Tony Rudge, Carlos Cevallos, Jurriaan Feijth, Lynsey Brett

AAPG Bulletin

...Basin architecture from high-resolution gravity gradient, magnetic, and seismic data, King Sound, Canning Basin, Western Australia Peter Kovac...

2013

H. Arbuckle Gas Field, Colusa County, California: Occurrence of Natural Gas in Mesozoic Rocks of Northern California

Richard H. Vaughan

AAPG Special Volumes

... at a depth of 7,145 ft in the Cretaceous. The pressure gradients have ranged from hydrostatic gradient (0.44 psi/ft) in the Pliocene beds to gradients...

1968

One-way full-waveform inversion using frequency-domain model extension

Rustam Akhmadiev, Biondo Biondi, Robert G. Clapp

International Meeting for Applied Geoscience and Energy (IMAGE)

... gradient method (Fletcher and Reeves, 1964). The spline grid spacing for slowness model used in the inversion is refined at different stages as listed...

2024

High-precision seismic imaging for complex deep structures in the hydrocarbon exploration using a coherent-stacking-based least-squares migration

Jidong Yang, Jianping Huang, Tengfei Lin, Zhenchun Li, and Liang Chen

AAPG Bulletin

... the stacked gradient during iterations, the proposed method updates the reflectivity model in the subsurface half-opening angle domain and then applies...

2024

Abstract: Uncertainty Space for Microseismic Event Locations using a Double Difference Algorithm; #90174 (2014)

Timur Mukhtarov

Search and Discovery.com

... equations for all selected event pairs, is solved using LSQR conjugate gradient algorithm of Paige and Saunders (1982). LSQR is well suited for large...

2014

Hot Enough for Ya? Compilations of Heat Flow Values and Source Rock Data Along the Western Central Atlantic Margin, #30170 (2011)

William Dickson, Janice M. Christ

Search and Discovery.com

... Atlantic to the northern boundary of Mauritania on the conjugate margin. We see reduced but adequate merit along the US margin north of the KFZ...

2011

Well Performance Prediction in Montney Formation Using Machine Learning Approaches

Hamid Rahmanifard, Hamzeh Alimohammadi, Ian Gates

Unconventional Resources Technology Conference (URTEC)

..., including BFGS quasi-newton (bfg), Bayesian regularization (br), conjugate gradient with Powell/Beale restarts (cgb), Fletcher-Powell conjugate gradient...

2020

Abstract: Delineating Compressional Structures Through Refined Geosteering Methods; #90308 (2017)

Chad Koury

Search and Discovery.com

.... To more acutely determine the cross-sectional profile of these geologic structures, I developed a method whereby an algorithm is used to project...

2017

Abstract: Least Squares Pre-Stack Time Migration for Imaging and Reconstruction of Converted Waves; #90224 (2015)

Aaron Stanton

Search and Discovery.com

..., J. A., 1987, Tomographic inversion via the conjugate gradient method: Geophysics, 52, 179–185. Wang, J., 2005, 3-d least-squares wave-equation avp...

2015

Quantitative seismic interpretations to detect biogenic gas accumulations: a case study from Qaidam Basin, China

Yexin Liu, Zhuoheng Chen, Liqun Wang, Yongshu Zhang, Zhiqiang Liu, Yanhua Shuai

CSPG Bulletin

... Convention, Calgary, Alberta, Canada. Liu, Y.X. and Chen, Z, 2011. A non-linear conjugate gradient method to solve for Vp, Vs and density from seismic...

2015

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