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The AAPG/Datapages Combined Publications Database
Showing 5,207 Results. Searched 201,044 documents.
Abstract: How much well do you need in Acoustic Impedance Inversion?; #90174 (2014)
Heather J. E. Lloyd and Gary F. Margrave
Search and Discovery.com
... and inverse Fourier transformed to produce the acoustic impedance inversion. Selecting an appropriate low cut-off frequency is not always a simple task...
2014
Abstract: Hydraulic Fracturing as a Global Cascade in Networked Systems; #90187 (2014)
David Cho and Gary F. Margrave
Search and Discovery.com
... by the inverse of the P-wave velocity. Therefore, a material with a higher value of c corresponding to the effective medium, experiences more amplitude...
2014
Abstract: Investigating the Low Frequency Content of Seismic Data with Impedance Inversion; #90187 (2014)
Heather J. E. Lloyd and Gary F. Margrave
Search and Discovery.com
... the low-frequency cut-off, , and is selected by the user. Inverse Fourier Transform the result in (7). Add the linear trend that was removed in (1...
2014
Abstract: Data Interpolation by Angular Weighted MWNI; #90187 (2014)
Mark Ng and Dan Negut
Search and Discovery.com
...), where ukx is the spatial transform model in kx , T the sampling diagonal only matrix, F’ the inverse spatial Fourier transform operator, F the forward...
2014
Abstract: Integration of Time-lapse Seismic Analysis with Reservoir Simulation; #90187 (2014)
Naimeh Riazi, Laurence Lines, and Brian Russell
Search and Discovery.com
... function. The quantitative loop leads to an inverse problem. As shown in Figure 1, minimizing the misfit function is an iterative process which...
2014
Abstract: Application of Surface-wave Modeling and Inversion in Cordova Embayment of Northeastern British Columbia; #90187 (2014)
Antoun Salama, Niranjan Banik, Mona Cowman, Kevin Roberts, Anna Glushchenko, Mark Egan, Alfonso Gonzalez, Eric von Lunen, and Jennifer Leslie-Panek
Search and Discovery.com
... normal moveout (NMO) corrections, an appropriate inside mute and outside mute to each shot gather, and then inverse NMO to the gathers. A representative...
2014
Abstract: Multi-Scale 2D Acoustic Full Waveform Inversion with High Frequency Impulsive Source; #90187 (2014)
Vladimir N. Zubov, Michael P. Lamoureux, and Gary F. Margrave
Search and Discovery.com
... where the source function g is an arbitrary function in general, corresponding to the basis vector of the ( ) inverse problem. As many other...
2014
Abstract: Tides at High Latitudes; #120178 (2015)
Robert W. Dalrymple, Laurie Padman
Search and Discovery.com
... of Glaciology, v. 34, p. 247-254. Padman, L., and Erofeeva, S., 2004, A barotropic inverse tidal model for the Arctic Ocean. Geophysical Research Letters, v., 31...
2015
Abstracts: Microseismic Source Inversion in Anisotropic Media; #90173 (2015)
Scott Leaney, Chris Chapman, and Tadeusz Ulrych
Search and Discovery.com
... are correctly recovered with EOS. Conclusions The anisotropy of sedimentary rocks is an important property to include in microseismic forward and inverse...
2015
Abstracts: Plane Wave Reflection and Transmission Coefficients for VTI Media; #90173 (2015)
Ritesh Kumar Sharma and Robert James Ferguson
Search and Discovery.com
... play an important role in order to reduce the non uniqueness of the inverse problem, where it is needed to model the data in a given geologic...
2015
Abstracts: Frequency-dependent Streaming Potential of Reservoir Rocks; #90173 (2015)
E. Tardif, E. Walker, P. W. J. Glover, and J. Ruel
Search and Discovery.com
... potential available in the literature (only 5 sizes of capillary tube, 2 filters, 1 glass membrane and 1 rock). It is extremely clear...
2015
Abstract: Organic Matter Variations within the Upper and Lower Bakken Shales of Saskatchewan, with Implications for Origin and Hydrocarbon Generation; #90224 (2015)
Titi Aderoju and Stephen L. Bend
Search and Discovery.com
... of 13.0wt%. Using conventional maturity parameters, the Type II kerogen would be considered relatively immature, however Tmax shows a strong inverse...
2015
Abstract: Tomography of a Velocity Modeland Location of Microseismic Events with P, Sv and Sh Waves; #90224 (2015)
Malgorzata Chmiel and Thomas Bardainne
Search and Discovery.com
.... Simulated Annealing Seismic tomography, which is used to constrain velocity models, is solved as an inverse problem. We minimized a first arrivals...
2015
Abstract: Raypath-Consistent Shear Wave Statics; #90224 (2015)
Raul Cova, David Henley, and Kris Innanen
Search and Discovery.com
... of this inverse problem as a key step towards achieving the ultimate goal of computing a S-wave velocity model for the near surface. Acknowledgements The authors...
2015
Soil Hydrocarbon Alteration: Solid Phase versus Gas Phase Hydrocarbon Detection; #40383 (2009)
James M. Fausnaugh
Search and Discovery.com
... than unity are within the oil window. High inverse correlations between iC. I nC. and the 270nm I 280nm ratio indicate that higher UV-Vis ratio values...
2009
Continental Shelves as the Lowstand Fluvial Longitudinal Profile: Possible Implications for Icehouse vs. Greenhouse Stratigraphic Records
Mike Blum
Search and Discovery.com
... to shelf margin sea-level positions sea- SHELVES AS THE DOWNDIP EXTENSION OF THE FLUVIAL LONG PROFILE? • “Flint Law” (S = -kAy): an inverse power law...
2009
Risks and Benefits of Geologic Sequestration of Carbon Dioxide - How Do the Pieces Fit?, #80058 (2009)
Susan Hovorka
Search and Discovery.com
... they are in the model). Saturation logging using Schlumberger RST measures changes in in saline brine saturation, and by inverse the displacement of brine by CO2...
2009
Cyclic Variation of Organic Carbon Isotope Ratio (δ13Corg) and the Total Organic Carbon (TOC) within the Barnett Shale (Texas, USA): A Signal of 3nd Order Sea Level Change in the Mississippian, #10245 (2010)
Sandeep Banerjee, Kurt Ferguson, Robert T. Gregory, Paten Morrow,
Search and Discovery.com
... is characterized by three major cycles. Each cycle is characterized by inverse correlation between TOC and δ13Corg. The trend of decreasing or increasing...
2010
Reducing Uncertainty in Subsalt Interpretation: A Non-Seismic View from Integration; #40508 (2010)
Markus H. Krieger and Oliver Geisler
Search and Discovery.com
..., wavelength filters, upward continuations, etc. As an example, the second vertical derivative (SVD) of gravity data can be utilized as a first...
2010
Reservoir Characterization of Silurian (Niagaran) "Pinnacle" Reefs in the Michigan Basin; #50286 (2010)
G. Michael Grammer, Amy K. Noack, Heather Qualman, Audrey Ritter-Varga, Jessica Wold, Anthony E. Sandomierski, W.B. Harrison III
Search and Discovery.com
... •Inverse relationship between velocity and permeability •Trend develops in sequence stratigraphic framework Noack (2008) Summary 1. 2. 3. 4...
2010
High Performance Computation by Graphics Processor Unit Technology for Geophysical Seismic Signal Processing, #40727 (2011)
Sunjay Sunjay
Search and Discovery.com
... of the world. Imaging of the subsurface is a nonlinear inverse problem which plays the role of optical lens. The key challenge that the oil industry must...
2011
Distribution of Overpressure and its Prediction in Saurashtra Dahanu Block, Western Offshore Basin, India, #40730 (2011)
Kanak R. Nambiar, B.K. Singh, R.N. Goswami, K.R.K. Singh
Search and Discovery.com
... of over-pressuring in this block for which more studies will have to be undertaken. References Bethke, C.M., 1986, Inverse hydrologic analysis...
2011
Application of Illumination Compensation to Irregular Surface Areas Imaging; #40773 (2011)
Yueming Ye and Ru-shan Wu
Search and Discovery.com
... seismic data acquisition aperture in reality, the inverse-propagated waves cannot completely recover the scattered wave field and will render disto rtion...
2011
Predicting Hydraulically Induced Fractures Using Acoustic Impedance Inversion Volumes: A Barnett Shale Formation Example; #40829 (2011)
Xavier E. Refunjol, Joel H. Le Calvez, and Kurt J. Marfurt
Search and Discovery.com
... Reflectivity = Peak 1024 1026 1028 1030 1032 1034 Limestone Limestone 1036 1038 Shale Inverse Modeling Overview I. Introduction • Objectives...
2011
Quantitative Tarfaya Basin Development, Morocco, #10420 (2012)
Axel Wenke, Rainer Zühlke, Haddou Jabour, Oliver Kluth, Torge Schümann
Search and Discovery.com
... quantitative sequence stratigraphy and inverse flexural basin modeling. The subsidence/uplift history of the Tarfaya Basin shows nine trends (ST1-9...
2012