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 200,685 documents.
Upscaling acoustic wave equation using renormalization group theory
Ajay Malkoti, Shravan M. Hanasoge, Rene Edouard Plessix
International Meeting for Applied Geoscience and Energy (IMAGE)
... show a good consistency for generated waveforms. INTRODUCTION Seismic imaging techniques such as reverse-time migration, least-squares reverse-time...
2022
3D anisotropic wavefield simulation with an advanced time-space domain temporal high-order SGFD solution
Xinquan Wang, Long Wu, Yunshan Lei, Panpan Lv, Huibing Zhao, Xiaoling Guo
International Meeting for Applied Geoscience and Energy (IMAGE)
...://doi.org/10.1190/1 .1500393. Chen, H., H. Zhou, Q. Zhang, M. Xia, and Q. Li, 2016, A k-space operator-based least-squares staggered-grid finite-difference...
2024
Workflow for Nonlinear AVO Inversion to Estimate Seismic Anisotropy and Geomechanical Properties of Shale
Un Young Lim, Richard L. Gibson Jr., Nurul Kabir
Unconventional Resources Technology Conference (URTEC)
... a least-squares approach to AVO inversions with the parameterization. We consider the inverse problem as the minimization of a residual error function E...
2019
Investigation of Time-series Clustering to Forecast Wells with a Short Producing Life
Reza Khaksarfard, S. Hamed Tabatabaie, Louis Mattar
Unconventional Resources Technology Conference (URTEC)
..., subject-matter expertise and judgment. URTeC 992 3 In this work, acceptable fits are found as follows: i. The least squares error method is applied...
2019
Seismic Velocity Variations in San Joaquin Valley, California
Walter S. Olson
AAPG Bulletin
..., and the linear increase of interval velocity with depth. Both equations may be fitted to data by using least squares. These equations give the simplest...
1941
The Relative Roles of Compaction and Early Cementation in the Destruction of Permeability in Carbonate Grainstones: A Case Study from the Paleogene of West-Central Florida, U.S.A.
David A. Budd
Journal of Sedimentary Research (SEPM)
..., but grainstones are characterized by an overall decrease in permeability with depth (Fig. 1). A least-squares exponential regression indicates that 26...
2002
Dolomitization of Mississippian Carbonates in the Shell Waterton Gas Field, Southwestern Alberta: Insights from Paleomagnetism, Petrology and Geochemistry
Michael T. Lewchuk,, Ihsan S. Al-Aasm,, David T.A. Symons, Kevin P. Gillen
CSPG Bulletin
... components were obtained using the principal component or least-squares fitting method of Kirschvink (1980). Most components were defined over three or more...
1998
Gravity Exploration on the Central Gulf Coast
Jackie D. Stewart
New Orleans Geological Society
... by J.A. Elkins in "Geophysics", Volume 16, No. 1, Jan 1951. The "least squares" procedure is another approach for separating local anomalies from those...
1991
Implementation of the DIPSCAN Method to Estimate Boundary Dips in Complicated Structures by VSP Data
A. A. Tabakov, V.N.Ferentsi, H. Gravini
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... (1984). Authors used a technique of the least squares for minimization of discrepancy between observed and theoretical wave travel time from shot...
2006
Estimation of Total Organic Carbon (TOC) Content of Shale from AVO Inversion: A New Crossplot Approach Based on Zoeppritz Equations
Un Young Lim, Richard Gibson Jr., Nurul Kabir
Unconventional Resources Technology Conference (URTEC)
... with the assumption that the model parameters of the overlying limestone are known. In this paper, we apply a least-squares approach to AVO...
2019
Rubidium-Strontium Minimum Ages of Sedimentation, Uranium Mineralization, and Provenance, Morrison Formation (Upper Jurassic), Grants Mineral Belt, New Mexico
Moon J. Lee , Douglas G. Brookins
AAPG Bulletin
..., Uranium deposits of the Grants region, New Mexico: Wyoming Geol. Assoc. Earth Sci. Bull., v. 5, p. 3-12. York, D., 1969, Least squares fitting...
1978
Thermal History and Diagenesis of the Wilrich Member Shale, Spirit River Formation, Northwest Alberta
Cathy A. Connolly
CSPG Bulletin
... in the Deep Basin during the epeirogenic uplift subsequent to the Laramide Orogeny is approximately 2000 m. This value is based on the least squares...
1989
High-resolution Mg/Ca ratios in a coralline red alga as a proxy for Bering Sea temperature variations from 1902 To 1967
Steffen Hetzinger, Jochen Halfar, Andreas Kronz, Robert S. Steneck, Walter Adey, Phillip A. Lebednik, Bernd R. Schöne
PALAIOS
... are indicated in the panel (p Ͻ 0.001, significant at the 1% level). Correlations were computed using ordinary least squares (OLS) regression with zero lag...
2009
Geology of the Iron Springs Mining District, Utah1
Peter D. Rowley, Daniel S. Barker
Utah Geological Association
.... Wright, T. L., and Doherty, P. C., 1970, A linear programming and least squares computer method for solving petrologic mixing problems: Geol. Soc...
1978
Rb-Sr Whole-Rock Age Determinations of the Iron Hill and McClure Mountain Carbonatite-Alkalic Complexes, Colorado
M.D. Fenton, G. Faure
Rocky Mountain Association of Geologists
... deviation) of each Isochron e r r o r ( 1 s t a n d a r d deviation) of e a c h i s o c h r o n were calculated by least squares regression w e r e...
1970
Implications of Stratigraphic Variability of Source Rocks: Chapter 2
B. J. Katz, T. M. Breaux, E. L. Colling , L. M. Darnell, L. W. Elrod, T. Jorjorian, R. A. Royle,V. D. Robison, H. M. Szymczyk, J. L. Trostle, J. P. Wicks
AAPG Special Volumes
...-squares fit of the data from the Ventura basin. The dashed line represents a least-squares fit of the data from the Santa Maria basin. End_Page 9...
1993
Interstitial Water Composition and Geochemistry of Deep Gulf Coast Shales and Sandstones
Gene W. Schmidt
AAPG Bulletin
... obtained by the Louisiana Geological Survey (Harder, 1960; Hodges et al., 1963). A computer-plotted least-squares fit of the shut-in temperatures between...
1973
Integrating Model Uncertainties in Probabilistic Decline Curve Analysis for Unconventional Oil Production Forecasting
Aojie Hong, Reidar B. Bratvold, Larry W. Lake, Leopoldo M. Ruiz Maraggi
Unconventional Resources Technology Conference (URTEC)
... a nonparametric fitting curve. The “rlowess” method regresses the subset of data in a moving window using weighted linear least squares and a first...
2018
Improving total organic carbon estimation for unconventional shale reservoirs using Shapley value regression and deep machine learning methods
Jaewook Lee, David E. Lumley, and Un Young Lim
AAPG Bulletin
... the Levenberg-Marquardt damped least-squares training method. This method blends the steepest descent method and the Gauss–Newton algorithm, so it has both...
2022
Stepwise Regression in the Earth Sciences: A Coastal Processes Example
James H. Balsillie, William F. Tanner
Environmental Geosciences (DEG)
... coefficient r, or r2, the sum of squares of y accounted for. The later expressed as a percentage (i.e., 100 r2) is preferred for this method (e.g....
1999
Evaluating the Performance of Decline Curve Analysis Equations During the Early Life of a Well Through the Quantification of the Uncertainty Associated with the Estimated Ultimate Recovery in a Shale Oil and Gas Formation
Agustín Terminiello, Pablo Crespo, Matías Nasca
Unconventional Resources Technology Conference (URTEC)
... history solving a nonlinear least-squares problem. The objective function is minimized using the trust-region-reflective algorithm which is available...
2020
THIN-SKINNED NORMAL FAULTS IN DEERLICK CREEK COALBED-METHANE FIELD, BLACK WARRIOR BASIN, ALABAMA
Saiwei Wang, Richard H. Groshong. Jr., Jack C. Pashin
Alabama Geological Society
... data from more than two horizons are available, the points are fit by a least-squares straight line. The slope of the line is the displacement...
1993
A Ramboe Study of the Cape Range No. 2 Well, Exmouth Sub-Basin
R. W. T. Wilkins, G. Hladky, M. V. Ellacott, J. D. Saxby
Petroleum Exploration Society of Australia (PESA)
... materials. To evaluate the subtle spectral changes in the region of the oil window, a least squares program for the decomposition of spectra...
1988
Integration of Depth Conversion, Seismic Inversoin and Modeling Over The Belida Field, South Natuna Sea Block "B", Indonesia
Patrick Jonklaas
Indonesian Petroleum Association
... Rupnik, 1943. Least Squares Determination Of The Velocity Function V = Vo + kz For Any Set Of Time Depth Data, Geophysics, Volume 8, pages 356-361...
1991
Enhancing Fault Interpretation Through Broadband Processing and Diffraction Imaging: The First and Successful Experience from Madura Offshore Area
Pongga Wardaya, Rino Saputra, Syaeful Amin
Indonesian Petroleum Association
... receiver ghost by applying a 3D least square algorithm in the f-xy (frequency-space) domain. The deghosting implemented in this study uses a method proposed...
2018