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The AAPG/Datapages Combined Publications Database

Showing 1,279 Results. Searched 200,357 documents.

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Fast and Reliable Estimates of Low Permeabilities by the Full-Immersion Pressure-Pulse Decay

Michael J. Hannon Jr.

Unconventional Resources Technology Conference (URTEC)

...). An explicit finite-difference numerical discretization scheme, with second order accuracy in space and fourth order accuracy in time, was employed...

2017

Abstract: The Phase Shift Time Stepping Equation and the Marmousi Data Set; #90171 (2013)

Ben D. Wards, Gary F. Margrave, and Michael P. Lamoureux

Search and Discovery.com

... Fourier transform which is exact for constant velocity medium. Introduction Reverse-time migration (Baysal et. al., 1983, McMechan, 1983; Whitmore...

2013

Chapter 10: Reservoir Modeling and Fluid-Flow Simulation, Ivie Creek Case-Study Area - Geological and Petrophysical Characterization of the Ferron Sandstone for 3-D Simulation of a Fluvial-Deltaic Reservoir (MP-02-6)

C.B. Forster, S.H. Snelgrove, J.V. Koebbe

Utah Geological Survey

... software, provided for use in the project courtesy of Mobil Exploration and Producing Company. This package allows the implicit pressure/explicit...

2001

Reconstruction of the Subsurface Reflected Wavefield on a Dense Grid from Multisensor Streamer Data

M. Vassallo, K. Eggenberger, D.J. van Manen, P. Watterson, A. Raskopin, A. Özbek

Indonesian Petroleum Association

... wavefield in a complementary way. These measurements can be, therefore, properly combined to fill the notches and recover the full bandwidth...

2013

Reservoir Characterization and Uncertainty Assessment Using the Ensemble Kalman Filter: Application to Reservoir Development

Deepak Devegowda, Chao Gao

AAPG Special Volumes

.... 11, no. 6, p. 10461060.Bishop, C. H., B. J. Etherton, and S. J. Majumdar, 2001, Adaptive sampling with the ensemble transform filter: Part I...

2011

Finite Difference Modelling: Part III: Time-Step n-Tupling

Lasse Amundsen, Ørjan Pedersen, Martin Landrø

GEO ExPro Magazine

... derivatives are calculated by the pseudospectral method (Fornberg, 1987), the explicit method 3 is known to be numerically stable and convergent whenever...

2018

Effect of Interbeds on Hydraulic Fracture Characteristics and Formation Pressure Response

Matthew Profit, Martin Dutko, Adam Bere, Uno Mutlu

Unconventional Resources Technology Conference (URTEC)

... material models, such as the tensile Rankine cap which is adopted in this paper, can be unstable when they are solved implicitly, so an explicit...

2018

Gabor Depth Migration using a New Adaptive Partitioning Algorithm

Yongwang Ma

Search and Discovery.com

... migration, the temporal Fourier transform is applied to the input seismic data to transform to the frequency domain. Then the spatial Fourier...

Unknown

Gabor Depth Migration using a New Adaptive Partitioning Algorithm

Yongwang Ma

Search and Discovery.com

... migration, the temporal Fourier transform is applied to the input seismic data to transform to the frequency domain. Then the spatial Fourier...

Unknown

Abstract: Seismic Data Decomposition into Spectral Components Using Regularized Nonstationary Autoregression; #90187 (2014)

Sergey Fomel

Search and Discovery.com

... components. The classic Fourier transform, Radon transform (Gardner and Lu, 1991), wavelet transform (Mallat, 2009), curvelet frame (Herrmann...

2014

Graphical Techniques for the Analysis and Display of Logging Information: Chapter 2

John H. Doveton

AAPG Special Volumes

... logs: Geological Society of London, Special Publication 48, p. 211-222. Illingworth, J., and J. Kittler, 1988, A survey of the Hough transform...

1994

Convolutional Neural Networks Forecasting for Unconventional Drilling Units in US Land

Francisco J. Parga Garcia, Jie Fang, Niven Shumaker

Unconventional Resources Technology Conference (URTEC)

... 3 and Figure 4, most DSUs are composed of irregular geometries making explicit geometric feature engineering difficult to generalize across...

2024

Current Trends in Geophysics

H. E. Stommel, J. M. Graul

Indonesian Petroleum Association

... for geophones within a group, since eventually they are to be combined (summed) into a single seismic trace. Given that an array of geophones...

1978

Full-elastic AVA extraction using acoustic FWI

Michael Warner, John Armitage, Adrian Umpleby, Nikhil Shah, Henry Debens, Fabio Mancini

International Meeting for Applied Geoscience and Energy (IMAGE)

... over conventional data processing and explicit depth migration. Conventional workflows however can also generate pre-stack attributes...

2022

Chemostatistic allocation of shale oil production using acidic heterocompounds

Yuanjia Han, Brian Horsfield, Nicolaj Mahlstedt, and Mareike Noah

AAPG Bulletin

... negative-ion ESI(−) Fourier transform ion cyclotron resonance mass spectrometry. A total of 2 oils and 5 mixtures thereof prepared in the laboratory, 4...

2021

Deep learning decomposition for null and active space estimation for thin-bed reflectivity inversion

Kristian Torres, Mauricio D. Sacchi

International Meeting for Applied Geoscience and Energy (IMAGE)

... iterative schemes (Torres and Sacchi, 2021), or as learned post-processing of an initial reconstruction (Kaur et al., 2020). Even though these methods...

2022

Deconvolution of Time-Varying Bottomhole Pressure Improves Rate-Time Models History Matches and Forecasts of Tight-Oil Wells Production

Leopoldo M. Ruiz Maraggi, Larry W. Lake, Mark P. Walsh

Unconventional Resources Technology Conference (URTEC)

... to obtain an equivalent rate—the unit-pressure-drop rate—under constant BHP. We apply five inverse schemes to assess their robustness and accuracy...

2021

Seismic speckle as multiplicative noise explaining land reflections distorted by near-surface scattering

Andrey Bakulin, Dmitry Neklyudov, Ilya Silvestrov

International Meeting for Applied Geoscience and Energy (IMAGE)

... mechanisms combined quantitatively explain amplitude transformation observed while locally stacking field data. We present field observations...

2022

Coupling Meshfree Peridynamics with the Classical Methods for Modeling Hydraulic Fracture Growth in Heterogeneous Reservoirs

Shivam Agrawal, Jason York, John T. Foster, Mukul M. Sharma

Unconventional Resources Technology Conference (URTEC)

... coupling schemes of our PD-based simulator with the classical methods – static PD region scheme, dynamic PD region scheme, and adaptive mesh refinement...

2020

Time-domain extended-source full-waveform inversion for acoustic vertically transversely isotropic media: Theory and numerical validation

Gaoshan Guo, Stephane Operto, Hossein S. Aghamiry

International Meeting for Applied Geoscience and Energy (IMAGE)

...,t), where −1 B−1 0 = M(m(x)) (5) In order to perform time-domain modeling with explicit timestepping scheme, we apply the change of variable from ue...

2023

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