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The AAPG/Datapages Combined Publications Database
Showing 1,687 Results. Searched 201,044 documents.
Accelerating innovation with software abstractions for scalable computational geophysics
Mathias Louboutin, Philipp Witte, Ali Siahkoohi, Gabrio Rizzuti, Ziyi Yin, Rafael Orozco, Felix J. Herrmann
International Meeting for Applied Geoscience and Energy (IMAGE)
... as simple least-squares optimization problem for the non-linear wave-equation represented as an abstract matrix A(m) parametrized by the model parameter m...
2022
Regularization by robust denoising for iterative simultaneous source separation
Breno Bahia, Mauricio D. Sacchi
International Meeting for Applied Geoscience and Energy (IMAGE)
... (·). RIHT algorithms are usually seen as reweighted least-squares thresholding on which the weights diminish the effect of gross errors. In terms...
2022
Integrated Analysis of Borehole and Seismic Data
E. Poggiagliolmi, R. D. Allred
Indonesian Petroleum Association
... reflectivity series. In practice, this operation is performed by Wiener least squares filter estimation, over a time window spanning the reservoir interval...
1993
Fracture Properties Characterization of Shale Rocks
Ahmad Ghassemi, Spencer Riley, Zhi Ye
Unconventional Resources Technology Conference (URTEC)
... experiments or mathematical regression methods. Here, the least squares method was used to determine these three parameters for Barton’s model, see...
2016
Induced Seismicity Near Fox Creek, Alberta: Interpretation of Source Mechanisms
Hongliang Zhang, David W. Eaton
Unconventional Resources Technology Conference (URTEC)
... . The least-squares solution to this overdetermined problem is given by: ˆ m (GT G)1 GT dobs . (4) Dataset The study area as shown in Figure 1...
2018
Synthetic Well Log Generation Using Machine Learning Techniques
Oyewande Akinnikawe, Stacey Lyne, Jon Roberts
Unconventional Resources Technology Conference (URTEC)
... or power, or interactions between input variables. The most popular estimation method for linear regression is least squares method. Least square...
2018
Late Cretaceous Chemical Remagnetization of the Paleozoic Carbonates from the Undeformed Foreland of the Western Canadian Cordillera
Philippe Robion, Jean Luc Faure, Rudy Swennen
AAPG Special Volumes
... to recover in-situ orientation of unoriented core material. This method was used to date a late chemical remanent magnetization (CRM) in Paleozoic...
2004
Crustal Structure of Queen Elizabeth Islands and Polar Continental Margin, Canada: Evolution of Arctic Ocean Basin
L. W. Sobczak, J. R. Weber
AAPG Special Volumes
... of least squares. By using the greater number of measurements and concentrating on the smaller anomalies, Bhattacharyya was able to provide reater...
1973
An Empirical Correlation to Predict Relative Permeability in Fractured Reservoirs Considering the Stress State and the Capillary Number
Kelly Díez, Alejandro Restrepo, Alirio Ocampo, Jonny Patiño, Juan Rayo, Diego Ayala, Luis Rueda
Unconventional Resources Technology Conference (URTEC)
... squares’ method according to the following general formula...
2022
Quantifying Proppant in the SRV Along a Fractured Well at the Hydraulic Fracturing Test Site: A Proppant Log Case Study from Permian-Delaware Basin
Debotyam Maity, Jordan Ciezobka
Unconventional Resources Technology Conference (URTEC)
... distribution results with pressure drawdown response. This method has been successfully modified for drilling mud return samples as well as cuttings...
2022
Integrated Workflows for Drilling Optimization and Enhanced Production
Jakob Heller, Venkatesh Anantharamu, Andrew Lewis, Bruce Karr, Ron Bianco
Unconventional Resources Technology Conference (URTEC)
.... A Taylor Time Shift (TTS) method was then applied to the data to remove residual moveout across the partial angle stacks. The method employs a least...
2023
Production of Carbonate Sediments by Selected Large Benthic Foraminifera on Two Pacific Coral Reefs
Pamela Hallock
Journal of Sedimentary Research (SEPM)
... for each species were fitted to power function curves of diameter to mass by least squares fit. The resulting equations are presented in Table 1...
1981
Theory and Applications of Time Series Analysis to Wireline Logs: Chapter 5
John H. Doveton
AAPG Special Volumes
... are the coefficients of intercept and slope, solved by a least-squares regression method. The second-order polynomial is a quadratic function: [EQUATION] which...
1994
Variations in Large-Scale Beach Amplitude Along the Coast
Nina Fisher, Robert Dolan, Bruce P. Hayden
Journal of Sedimentary Research (SEPM)
..., sinusoidal curves of differing frequencies are fitted to each series of data points using the least squares method (Rayner 1971). Each...
1984
Downstream Changes in Sand Composition, Roundness, and Gravel Size in a Short-headed, High-Gradient Stream, Northwestern Italy
Earle F. McBride, M. Dane Picard
Journal of Sedimentary Research (SEPM)
...) follow a linear exponential trend whose least-squares regression formula is size () = 0.1167 distance (km) - 10.29. The formula has...
1987
Weibull vs. Lognormal Distributions for Fluvial Gravels
G.M. Kondolf , A. Adhikari
Journal of Sedimentary Research (SEPM)
.... (1981) and Tappel and Bjornn (1983) calculated coefficients of determination r2 values for least-squares regression lines fitted to grain-size...
2000
Expanding Role of Computer in Geology
E. L. Dillon
AAPG Bulletin
... by the least squares method. The degree or "order" of the trend surface indicates the largest exponent in the equation for the surface, and thus...
1967
Model to Evaluate Exploration Strategies
David Austin Jones, Neal A. Buck, Jack Harris Kelsey
AAPG Bulletin
... of exploration. Equation 3 is used to calculate the parameters Fi(w), Fi(^infinity), and C simultaneously by fitting a least squares curve to the time series...
1982
Oriented Core: Its Use, Error, and Uncertainty
R. A. Nelson , L. C. Lenox , B. J. Ward, Jr.
AAPG Bulletin
... for four zones from one oriented core. The best-fit method used in this study was a linear least-squares approach. In zones of distinctly nonlinear data...
1987
EIA Expanded Geographic Coverage of Oil and Natural Gas Production: EIA-914 Survey Expansion and its Implications on EIA Reporting and Forecasting, #70237 (2017).
Gary Long, Jeffrey Little, Barbara Mariner-Volpe, Neal Davis, Elizabeth Panarelli, Emily Geary, Olga Popova
Search and Discovery.com
..., Inc. (DI) and data reported on Form EIA-914. The relationship between DI data and Form EIA-914 data is modeled using a Weighted Least Squares (WLS...
2017
Controls on Sediment Supply by Large Rivers
Niels Hovius
Special Publications of SEPM
... and drainage area hand have 1 Least squares regression lines can be fit to several of the For contractional settings old basin groups Fig 4 orogens...
1998
Extension, Displacement, and Block Rotation in the Larger Gullfaks Area, Northern North Sea: Determined from Map View Restoration
Delphine Rouby , Haakon Fossen , Peter R. Cobbold
AAPG Bulletin
...., P. R. Cobbold, P. Szatmari, S. Demerican, D. Coelho, and J. A. Rici, 1993, Least-squares palinspastic restoration of regions of normal faulting...
1996
Bilinear Flow Analysis of Shale Gas Wells With Dynamic Hydraulic Fracture Conductivity
Ivan C. Aldana, I. Yucel Akkutlu, W. John Lee
Unconventional Resources Technology Conference (URTEC)
... was regressed using an ordinary least squares technique. Using Eq. 1, we calculated fracture conductivity and permeability for the one stage of production...
2023
GEOLOGY OF THE TALLADEGA BELT IN THE HIGHTOWER REENTRANT, CLEBURNE COUNTY, ALABAMA
Denny N. Bearce
Alabama Geological Society
..., v. .12, p. 1-65. Wright, T.L, an Doherty, P.C., 1970 A linear programming and least squares computer method for solving petroWright, T.L, anddDoherty...
1979
Pore-Size Dependence of Fluid Phase Behavior and the Impact on Shale Gas Reserves
B. Rahmani Didar, I.Y., Akkutlu
Unconventional Resources Technology Conference (URTEC)
... on this figure was found by least squares fitting and critical pressure was found by using an equation similar to the Antoine’s equation: ln Pc...
2013