Welcome to the new Datapages Archives
Datapages has redesigned the Archives with new features. You can search from the home page or browse content from over 40 publishers and societies. Non-subscribers may now view abstracts on all items before purchasing full text. Please continue to send us your feedback at emailaddress.
AAPG Members: Your membership includes full access to the online archive of the AAPG Bulletin. Please login at Members Only. Access to full text from other collections requires a subscription or pay-per-view document purchase.
Welcome to the new Datapages Archives
Search Results > New Search > Revise Search
The AAPG/Datapages Combined Publications Database
Showing 1,682 Results. Searched 200,673 documents.
Abstract: Multi-component or Vector Dip Filtering Using the S-transform; #90187 (2014)
Kristof De Meersman and Majda Mihoub
Search and Discovery.com
... and compute the least-squares estimates of the amplitudes d c for the trace at the center. For the vertical component we get 2 d zc d zc cos( zc k x zc...
2014
Abstract: Robust Singular Spectrum Analysis for Erratic Noise Attenuation; #90187 (2014)
Ke Chen and Mauricio D. Sacchi
Search and Discovery.com
... (?). approximately got! SVD in their robust squares (IRLS) the estimate weights are least ˆ ! is the rank the reconstructed (M UV method based on randomized...
2014
Abstract: LSPSM for Pre-and Poststack Time Lapse Studies; #90187 (2014)
Abdolnaser Yousefzadeh and John C. Bancroft
Search and Discovery.com
... which may dominate the changes of the reflectivity model. The least squares prestack Kirchhoff migration (LSPSM) is performed separately on both...
2014
A method to evaluate pore structures of fractured tight sandstone reservoirs using borehole electrical image logging
Liang Xiao, Junran Li, Zhiqiang Mao, and Hongyan Yu
AAPG Bulletin
... and average fracture frequency of damage zones using a partial least squares statistical analysis: Implications for fault zone development: Journal...
2020
Probing deeper: On delineating basement features to investigate fractured aquifers in a rural community
Hendratta Ali, Manika Prasad, Ahmed Ismail, Njilah Isaac Konfor, Yene Atangana Joseph-Quentin, Oluseun Adetola Sanuade, Henry M. D. Agbogun, Mbida Yem, Alice Magha
International Meeting for Applied Geoscience and Energy (IMAGE)
... using smoothnessconstrained least squares inversion technique (Loke and Barker 1996). Several the ERT profiles will be acquired near the available...
2022
The processing method of ERI data based on irregular topography
Wang Hao, Huang Jianping, Li Zhenchun
International Meeting for Applied Geoscience and Energy (IMAGE)
... on inversion method of ERI data, least-squares inversion (Loke et al., 1996), the finiteelement method (Sasaki, 1994) have been proposed and applied...
2022
The Crude Oils of Wyoming—Product of Depositional Environment and Alteration
Richard D. McIver
Wyoming Geological Association
... oils of the Wind River Basin. The solid lines are the best least-squares lines for the data points shown. The dashed lines are the best least-squares...
1962
Application of Geophysical Method to Delineate Contamination in Waste Disposal Site of Ampar Tenang, Dengkil, Selangor D.E.
Abdul Rahim Samsudin, Umar Hamzah, Wan Zuhairi Wan Yaacob, Bahaa-eldin El Wali Abdel Rahim, Loh Yean Sze
Geological Society of Malaysia (GSM)
.... Electrical methods in geophysical prospecting. Oxford, Pergamon Press Inc. LOKE, M.H. AND BARKER, R.D., 1995. Least-squares deconvolution of apparent...
2003
Control and Adjustment of Surveys with the Magnetometer or the Torsion Balance
Donald C. Barton
AAPG Bulletin
..., 1924). T. W. Wright and J. F. Hayford, The Adjustment of Observations by the Method of Least Squares with Application to Geodetic Work, Van...
1929
Seismic Foldout: Gippsland Basin, Australia: New Data Provides Compelling Insights in Unexplored Areas
Jarrad Grahame, CGG
GEO ExPro Magazine
.... These included 3D joint source and receiver deghosting, the latest fullwaveform inversion and least-squares Q pre-stack depth migration (QPSDM...
2022
Seismic Foldout: Quad 35 Hybrid MC3Ds: Innovative multi-parameter FWI for near field exploration
Tor Akermoen, Jeroen Hoogeveen, GEOEX MCG, Kristen Berli, Seismic Partner, Tom Rayment, Percy Mellar
GEO ExPro Magazine
... waveform inversion delivers simultaneous model-building and full wavefield least-squares imaging directly from raw data, without the need...
2023
Quantitative X-Ray Diffractometry of Carbonate Rocks: RESEARCH METHOD PAPER
J. H. Fang, L. Zevin
Journal of Sedimentary Research (SEPM)
... with n unknown Rp. The least-squares solution for Equation 6 is given by [Rp] = [IspIsp]-1[Isp][1] (7) where Isp is the transpose matrix. ANALYTICAL...
1985
Abstract: Compensation for Shear-wave Anisotropy Effects Above a Heavy Oil Reservoir; #90171 (2013)
Richard Bale, Kostya Poplavskii, and Colin Wright
Search and Discovery.com
... by visual inspection. A full analysis, using a robust least-squares method, was then performed which confirmed the initial estimates, and provided...
2013
Abstract: Compensation for Shear-wave Anisotropy Effects Above a Heavy Oil Reservoir; #90171 (2013)
Richard Bale, Kostya Poplavskii, and Colin Wright
Search and Discovery.com
... by visual inspection. A full analysis, using a robust least-squares method, was then performed which confirmed the initial estimates, and provided...
2013
Abstract: Blind Surface Consistent Wavelet Estimation; #90187 (2014)
E. Bongajum, N. Kazemi, and M. D. Sacchi
Search and Discovery.com
.... In this study, we contend that (9) and (10) are equivalent to a surface consistent least squares problem for estimating the source and receiver operators...
2014
Abstract: Modified Euclids Blind Deconvolution Via Sparsity Optimization on a Sphere; #90187 (2014)
Nasser Kazemi and Mauricio D. Sacchi
Search and Discovery.com
... before and after deconvolution via SMBD, respectively. We also estimated the wavelet using the frequency-domain least squares estimator. The wavelet...
2014
Abstract: Time-lapse AVO Inversion; #90187 (2014)
A. Nassir Saeed, Laurence R. Lines, and Gary F. Margrave
Search and Discovery.com
... for the first iteration, which result in a traditional least-squares solution. The estimation of for i=1 is then subsequently substituted again in equation (7...
2014
Abstract: Statics Preserving Sparse Radon Transform; #90224 (2015)
Nasser Kazemi
Search and Discovery.com
... transformation without losing the data is not a trivial task. Hampson (1986) and Beylkin (1987) proposed a damped least squares solution to tackle the problem...
2015
Polarization Filter by Eigenimages and Adaptive Subtraction to Attenuate Surface-Wave Noise; #41565 (2015)
Stephen Chiu, Norman Whitmore, Michael Gurch
Search and Discovery.com
... use a time varying least squares Wiener match filter (Robinson and Treitel, 1980) because of its robustness in processing operations. The noise model...
2015
3D Aeromagnetic Mapping of the Williston Basin Basement; #41588 (2015)
Jiakang Li, Igor Morozov
Search and Discovery.com
... is the background field, and η is the Euler structural index. The method operates by solving the above over-determined equation using the least-squares method...
2015
Folding-related Fracture Pattern and Physical Properties of Rocks in the Chaudrons Ramp-related Anticline (Corbires, France)
Stefano Tavani, Laurent Louis, Christine Souque, Philippe Robion, Francesco Salvini, Dominique Frizon de Lamotte
AAPG Special Volumes
...). To rule out, or at least significantly reduce, the influence of lithology, we collected mesostructural data and samples in the Vitrollian formation...
2004
Trend Analysis: Chapter 18: Part IV. Managing the Business
Michael D. Smith, Donald R. Jones
AAPG Special Volumes
... want a 60% or higher probability of achieving at least a 15% DCFROR (discounted cash flow rate of return), and second, we want no more than a 15...
1992
Silica Diagenesis, I. Solubility Controls
Loretta Ann Williams , George A. Parks, David A. Crerar
Journal of Sedimentary Research (SEPM)
.... , --Alexander (1957). Two precipitated amorphous silicas. Solid lines are least-squares regression fits to redigitized data. +--Crerar and others (1981...
1985
The Importance of Sea-Level Fluctuations in the Formation of Linear Conglomerate Bodies; Carrot Creek Member of Cardium Formation, Cretaceous Western Interior Seaway, Alberta, Canada
Katherine M. Bergman, Roger G. Walker
Journal of Sedimentary Research (SEPM)
... a weighted least-squares procedure to calculate grid-point values from surrounding real data points. The data grid was then smoothed to produce the mesh...
1987
Climatic Forcing of Cyclic Carbonate Sedimentation During the Last 5.4 Million Years Along the West Florida Continental Margin
Steven R. Roof , Henry T. Mullins, Steven Gartner, T. C. Huang, Ed Joyce, John Prutzman, Leonard Tjalsma
Journal of Sedimentary Research (SEPM)
... the residuals from a least squares linear regression estimate. The program next subsamples the data set (at the original resolution) to produce a constant...
1991