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The AAPG/Datapages Combined Publications Database
Showing 1,682 Results. Searched 200,616 documents.
Approximation of Geothermal Gradients in Northern West Virginia Using Bottom-Hole Temperatures from Electric Logs: GEOLOGIC NOTES
T. W. Grisafi , H. H. Rieke, III , D. R. Skidmore
AAPG Bulletin
... least-squares fit the coefficients of a seventh-degree polynomial. A high-degree polynomial was deemed desirable so that results from later...
1974
Abstracts: Using Seismic Source Parameters to Characterize Reservoir Deformation; #90173 (2015)
Marc Prince, Adam Baig and Ted Urbancic
Search and Discovery.com
... in Figure 1, expected energy release values are based on a least squares fit of the scatterplot of moment magnitude versus seismic energy. As such, regions...
2015
Abstract: Real Time Microseismic Monitoring in China: A Case Study; #90224 (2015)
Michael D. Kratz
Search and Discovery.com
.... The source mechanism solution for microseismic events is derived by assuming a point source and using a least squares inversion of the observed Pwave...
2015
5-D Interpolation Compensates for Poor Sampling, by Daniel Trad; #41504 (2014).
Search and Discovery.com
2014
The Earthquake Process in Oklahoma; #80497 (2015)
Robert B. Herrmann, Han Su, Hao Guo
Search and Discovery.com
... phase/group velocity tomography Test with independent data set 12 Joint Inversion Iterative linearized least squares inversion of dispersion...
2015
Following Seismic Depth Imaging Technology for the Mexican Oil Industry: Experiences and Lessons Learned; #70232 (2016)
Sergio Chávez-Pérez, Mario A. Centeno-Miranda, Douglas A. Gómez-Reyes, Liliana Vargas-Meleza
Search and Discovery.com
..., we focused on seismic imaging tools like RTM (reverse time migration) LSRTM (least squares RTM), layer-based and grid-based tomography, FWI (full...
2016
Relative Rock Properties An Alternative to Estimate Reservoir Properties from Seismic Data; #42177 (2018)
Alvaro Chaveste
Search and Discovery.com
... properties are computed as a linear combination of relative rock properties. The parameters of the linear equation are obtained from well-log data by least...
2018
Inverting Seismic Data with Facies Trends; #42379 (2019)
Ritesh Kumar Sharma, Satinder Chopra
Search and Discovery.com
... and the real angle gather is minimized in a least squares sense. One of the fundamental assumptions made within the simultaneous inversion workflow...
2019
Origin and Growth Mechanism of Authigenic Chlorite in Sandstones of the Lower Vicksburg Formation, South Texas
Jeffry D. Grigsby
Journal of Sedimentary Research (SEPM)
...% of a least-squares linear regression. Following this approach, the average 18O is approximately -7.2o/oo (PDB) (Fig. 5). Chlorite Cement Occurrence...
2001
Application of seismic curvature attributes in the delineation of coal texture and deformation in Zhengzhuang field, southern Qinshui Basin
Lutong Cao, Yanbin Yao, Dameng Liu, Yanhui Yang, Yingjin Wang, and Yidong Cai
AAPG Bulletin
... provide a seismic curvature attribute-based coal texture evaluation method. Evaluation of the results shows that the coal texture types of the no. 3...
2020
The Makran Continental Margin: Structure of a Thickly Sedimented Convergent Plate Boundary: Convergent Margins: Field Investigations of Margin Structure and Stratigraphy
Robert S. White, Keith E. Louden
AAPG Special Volumes
... for the offshore and inshore lines respectively. These travel time corrections assumed that the deep refractors paralleled the sea floor and used least-squares...
1982
STRATIGRAPHIC AND STRUCTURAL RELATIONSHIPS OF THE EASTERN TALLADEGASLATE BELT OF ALABAMA
James F. Tull
Alabama Geological Society
.... 1-65. Wright, T.L, an Doherty, P.C., 1970 A linear programming and least squares computer method for solving petroWright, T.L, anddDoherty, P.C., 1970...
1979
Quantification of Tertiary Exhumation in the United Kingdom Southern North Sea Using Sonic Velocity Data
Richard R. Hillis
AAPG Bulletin
... Sandstone, and the Bunter Shale were plotted against each other to check their consistency (Figure 6). Regression analysis was used to determine least-squares...
1995
End-Member Modeling of Siliciclastic Grain-Size Distributions: The Late Quaternary Record of Eolian and Fluvial Sediment Supply to the Arabian Sea and Its Paleoclimatic Significance
Maarten A. Prins, Gert Jan Weltje
Special Publications of SEPM
... weighted least decomposition of X obtained from constrained approximations to the singular value Weltje 1994 1997a Because the true number squares...
1999
Potential New Method for Paleostress Estimation by Combining Three-dimensional Fault Restoration and Fault Slip Inversion Techniques: First Test on the Skua Field, Timor Sea
A. P. Gartrell, M. Lisk
AAPG Special Volumes
... to perform the inversion required for this study. The procedure optimizes (based on a least squares best fit) the four variables of the reduced stress tensor...
2005
Modeling and Optimization of Proppant Distributions in Multi-Cluster Hydraulic Fracture-Natural Fracture (HF-NF) Networks
Yidi Wu, George J. Moridis, Thomas A. Blasingame
Unconventional Resources Technology Conference (URTEC)
...o minimize the cost function. To URTeC 5471 9 perform this optimization, the stochastic gradient descent and back propagation methods is impl...
2021
Rb-Sr Ages of Diagenesis of Mg-rich Clay in Permian Sediments, Palo Duro Basin, Texas Panhandle, U.S.A.
Leon E. Long , Mark E. Erwin , , R. Stephen Fisher
Journal of Sedimentary Research (SEPM)
... of Economic Geology, Report of Investigations No. 147, 81 p. YORK, D., 1966, Least-squares fitting of a straight line: Canadian Journal of Physics, v...
1997
CSPG/CSEG/CWLS GeoConvention 2011; - Abstracts, #90173 (2015).
Search and Discovery.com
2015
A Review of Permian and Triassic Paleomagnetic Data With Respect to Paleogeographic Conditions at, and the Location of, the Permian-Triassic Boundary
A. E. M. Nairn, D. N. Peterson
CSPG Special Publications
... that the magnetic field be dipolar (Runcorn, 1959), an assumption which can be reasonably demonstrated (e.g. Helsley and Steiner, 1969). If the least squares...
1973
A Multiproxy Characterisation of Shale Brittleness in the Isa Superbasin, Northern Australia
Amber Jarrett, Adam Bailey, Lisa Hall, David Champion, Liuqi Wang, Ian Long, Tara Webster, Simon Webber, Jessica Byass, Stewart Gilmore, Ziqing Hong, Junhong Chen, Paul Henson
Unconventional Resources Technology Conference (URTEC)
... defined in Equation 5. Wurst and Cui (2018) recommend using the least-squares algorithm to model the mineralogy based on XRF by allocating different...
2019
Central America and the North Caribbean: Resource Implications Inferred from Paleomagnetic Data and Plate Tectonic History
William D. MacDonald
Circum Pacific Council Publications
.... The question arises as to how to match or "fit" these features in a least-squares sense, to develop the paleogeographic reconstruction. Contours...
1995
Clast Size and Bed Thickness Trends in Resedimented Conglomerates: Example From a Devonian Fan-Delta Succession, Southwest Poland
Szczepan J. Porebski
CSPG Special Publications
... at the 0.001 level. The data, when fitted to a straight line by least squares, taking the MCS as the independent variable, reveal some differences...
1984
The Effect of Deep Burial and Folding on Sandstone Reservoirs in some Giant Gas Fields, South America
Gregory Smith, Maxim Lebedev, Reza Rezee, Stefan Iglauer
Petroleum Exploration Society of Australia (PESA)
... algorithm, for which the T2 distribution is obtained by a non-negative least squares fit. AEGC 2018: Sydney, Australia 2 The mercury injection analyses...
2018
Petrology and Uranium Mobility of a Granite of Early Precambrian Age from the Owl Creek Mountains, Wyoming
I. T. Nkomo, J. S. Stuckless, R. E. Thaden, J. N. Rosholt
Wyoming Geological Association
... district, Georgia: Geol. Soc. America Bull., v. 87, p. 1067-1077. York, Derek, 1969, Least-squares fitting of a straight line with correlated errors...
1978
A Late Neoproterozoic age for the Caledonia Mountain Pluton, a high Ti-V layered gabbro in the Caledonia (Avalon) terrane, southern New Brunswick
Sandra M. Barr, Michael A. Hamilton, Chris E. White, Scott D. Samson
Atlantic Geology
.... New Brunswick Department of Natural Resources and Energy Assessment Report 474544. YORK, D. 1969. Least squares fitting of a straight line...
2000