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The AAPG/Datapages Combined Publications Database

Showing 2,053 Results. Searched 200,619 documents.

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Regional productivity in the Austin Chalk, with emphasis on fault zone production in the Karnes trough area

Frank Male, and Chris K. Zahm

AAPG Bulletin

... capture nonlinear trends and interactions is appropriate for modeling productivity. (For an overview of machine learning practice, we suggest the Python...

2025

ABSTRACT: Well-log Feature Extraction Using Wavelets and Genetic Algorithms; #90007 (2002)

Rivera, Nestor, Shubhankar Ray, Andrew Chan, Jerry Jensen

Search and Discovery.com

... Article #90007©2002 AAPG Annual Meeting, Houston, Texas, March 1-13, 2002 wavelet coefficients using nonlinear operations and smoothing filter...

Unknown

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

Jennifer Adams, Barry Bennett, Lloyd Snowdon, Steve Larter

Search and Discovery.com

... Oil Samples from Reservoir Samples. Canadian, Patent Pending 2006. Appl’n No. 2,578,319. Malthouse, EC, Tamhane, AC and Mah, RSH, 1997. Nonlinear...

2010

Abstract: Optimum Aperture Length for Improving Dispersion Curve Analysis in CMP Cross-Correlation of Surface Waves; #90187 (2014)

Roohollah Askari, Robert J. Ferguson, and Helen Isaac

Search and Discovery.com

... velocity, cj, is determined by a nonlinear equation ‘F’ in an implicit form: F( f ,cf ,vs ,vp, ρ, h) = 0 (j = 1, 2, . . . ,m), (6) where f...

2014

Abstract: Full Waveform Inversion of Crosswell Seismic Data Using Automatic Differentiation; #90187 (2014)

Danping Cao and Wenyuan Liao

Search and Discovery.com

... method is effective and efficient to solve the full waveform inversion problem. Introduction Full waveform inversion (FWI) is a nonlinear data...

2014

Abstract: Interesting Directions Being Pursued in Seismic Curvature Attribute Analysis; #90187 (2014)

Satinder Chopra and Kurt J. Marfurt

Search and Discovery.com

... the seismic data in the spatial analysis window. The output data looks cleaner overall and the vertical faults look sharper. Nonlinear mean, median...

2014

Abstract: Simultaneous P-P and P-S Waveform Inversion Algorithm Using Pre-Stack Time Imaging Method ; #90187 (2014)

Hassan Khaniani, John C. Bancroft, and Eric von Lunen

Search and Discovery.com

..., A strategy for nonlinear elastic inversion of seismic reflection data: Geophysics, 51, 1893-1903. -1987, Inverse problem theory: Methods for data...

2014

Abstract: Inference of 2D and 3D Locally Varying Anisotropy Fields; #90187 (2014)

Maksuda Lillah and Jeff Boisvert

Search and Discovery.com

... the shortest nonlinear paths to 1 3-133 Markin/CNRL Natural Resources Engineering Facility (NREF),University of Alberta, Edmonton, AB, Canada, email...

2014

Abstract: P-wave AVAz Modeling: A Haynesville Case Study; #90224 (2015)

Jon Downton

Search and Discovery.com

... and C44 stiffness terms in equation (3). In this case the N, T, M and  must be solved as a set of nonlinear equations. Anisotropic elastic layered...

2015

Rock Physics Inversion: A Montney Case Study, #41295 (2014)

James Johnson, Lisa Holmstrom, Satwant Diocee, Rob Tilson, Sean Johnson

Search and Discovery.com

.... Schlumberger’s ISIS inversion software uses a simulated annealing global optimization algorithm with a nonlinear cost function to optimize the results...

2014

Seismic Facies Analysis Using Generative Topographic Mapping; #41717 (2015)

Satinder Chopra, Kurt Marfurt

Search and Discovery.com

... method and has been suggested as an alternative to it. GTM analysis does a nonlinear dimension reduction in latent space, and provides probabilistic...

2015

Modelling the Complexity of Continental Breakup and Basin Formation Including the Role of Magmatism, #41785 (2016).

Klaus Regenauer-Lieb, Jie Liu, Gideon Rosenbaum, Roberto Weinberg, Ali Karrech, Manolis Veveakis, Thomas Poulet

Search and Discovery.com

... detachments: A nonlinear system controlling lithospheric extension: Journal of Geophysical Research, v. 115/B11, DOI: 10.1029/2009JB006696 Regenauer-Lieb...

2016

Exploiting a Priori Model Reduction Methods to Accelerate Seismic Simulations, #42038 (2017).

David Modesto, Josep De La Puente

Search and Discovery.com

... test function !  In variational (weak) form: 1 ) Nonlinear equation (greedy) !! 2 3 1 3 1 2 3 n 1 v = v 1 (x)Fn Fn + Fn v 2 (!)Fn A(Fn Fn Fn , v...

2017

Unravelling Reflux Dolomitization: Why Size Matters; #51519 (2018)

Chia Pei Teoh, Juan Carlos Laya, Fiona Whitaker, Tatyana Gabellone, Maurice Tucker, Cameron Manche, Stephen E. Kaczmarek, Brent Miller

Search and Discovery.com

... with humidity of 75%, temperature of 30 C and initial d18O of 1.5‰ VSMOW. Nonlinear relationship results in 5‰ VSMOW fluids originating from either 20% (44 mg...

2018

Surge Propagation in Debris Flows; #51540 (2018)

Paul Allen, Oliver Harlen, Robert Dorrell, Robert Thomas, William McCaffrey

Search and Discovery.com

.... In contrast debris flows exhibit both a nonlinear relationship between stress and shear-rate and the existence of a non-zero yield strength, i.e. a non...

2018

Quantitative Calibration of Hyperspectral Core Imaging Data: A New Method for Producing Continuous, High-Resolution Mineralogical Characterization of Cores from Both Conventional and Unconventional Reservoirs; #42444 (2019)

James Greene, Tobi H. Kosanke, Paul Linton

Search and Discovery.com

... with specific wavelet features being designated as endmember variables. SOM has proven to be an effective method of classifying nonlinear data...

2019

Utilization of High-Resolution Short- and Long-Wave Hyperspectral Imaging for Integrative Rock Typing; #42447 (2019)

Xiuju Liu, Tobi Kosanke

Search and Discovery.com

... is a type of unsupervised artificial neural network, which is an effective classification method to classify nonlinear data with a large number of variables...

2019

Artificial Neural Network (ANN) Prediction of Porosity and Water Saturation of Shaly Sandstone Reservoirs; #51559 (2019)

Chaw Yin Nyein, Ghareb Mostafa Mostafa Ali Hamada

Search and Discovery.com

... of shaly sand reservoir using well logging data. ANN technique utilizes the prevailing unknown nonlinear relationship in data between well logs...

2019

De-risking Saline Aquifer-Type CO2 Storage Resources Via Machine Learning-based Reservoir Modelling. Case Study, Bunter Sandstone Formation, Southern North Sea

Edwin Tillero, Jose L. Mogollon, Francisco Tillero

Carbon Capture, Utilization and Storage (CCUS)

... layer, and transfer functions with the goal of finding nonlinear relationship among variables. In the context of GCS modelling by a neural network...

2024

Rock Typing and Facies Identification Using Fractal Theory and Conventional Petrophysical Logs

Roozbeh Koochak, Manouchehr Haghighi, Mohammad Sayyafzadeh, Mark Bunch

Australian Petroleum Production & Exploration Association (APPEA) Journal

... time series on the basis of the fractal theory. Physica D. Nonlinear Phenomena 31(2), 277–283. doi:10.1016/0167-2789(88)90081-4 Katz, A. J., and Thompson...

2018

Coal Identification Using Neural Networks with Real-Time Coalbed Methane Drilling Data

Ruizhi Zhong, Raymond Johnson Jr, Zhongwei Chen, Nathaniel Chand

Australian Petroleum Production & Exploration Association (APPEA) Journal

.... This step is a linear operation between z[l] and ak . The second j [l] step involves computing aj with a nonlinear activation function g from z[l...

2019

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