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The AAPG/Datapages Combined Publications Database
Showing 1,682 Results. Searched 200,691 documents.
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
Structural and Stratigraphic Evolution of the Campos Basin, Offshore Brazil: Chapter 38: Analogs
W. U. Mohriak, M. R. Mello, G. D. Karner, J. F. Dewey, J. R. Maxwell
AAPG Special Volumes
... the Campos basin were determined for each well by fitting an exponential curve, in a least-squares sense, to the present-day variation of porosity...
1989
Using 3-D Seismic Volumetric Curvature Attributes to Identify Fracture Trends in a Depleted Mississippian Carbonate Reservoir: Implications for Assessing Candidates for CO2 Sequestration
Susan E. Nissen, Timothy R. Carr, Kurt J. Marfurt, E. Charlotte Sullivan
AAPG Special Volumes
... production increases with distance from the northeast-trending lineaments in panel B. The dashed line shows a linear least squares fit to the data.The...
2009
Paleohydrology of Ancient Dolomites: Geochemical Evidence
L. S. Land , M. R. I. Salem , D. W. Morrow
AAPG Bulletin
...------------------------------ Fig. 16. Least-squares regression lines for strontium content of four Allen Bay sections shown in Figure 17. Note consistent up-section increase...
1975
The controls on the composition of biodegraded oils in the deep subsurface: Part IIGeological controls on subsurface biodegradation fluxes and constraints on reservoir-fluid property prediction1
Steve Larter, Haiping Huang, Jennifer Adams, Barry Bennett, Olufemi Jokanola, Thomas Oldenburg, Martin Jones, Ian Head, Cindy Riediger, Martin Fowler
AAPG Bulletin
..., the degradation fluxes of reactive components in the oil were optimized via a least-squares fitting procedure to obtain an optimal match between observed...
2006
Petroleum generation kinetics: Single versus multiple heating-ramp open-system pyrolysis
Kenneth E. Peters, Alan K. Burnham, and Clifford C. Walters
AAPG Bulletin
.... 27, p. 6447–6459, doi:10.1021/ef401162p. Levenberg, K., 1944, A method for the solution of certain non-linear problems in least squares: Quarterly...
2015
THE THERMAL STATE OF THE WILLISTON BASIN IN CANADA
F. W. JONES
Williston Basin Symposium
... of the sedimentary column. The gradients in the upper interval were calculated from a least squares fitted straight line through the BHT...
1991
From raw seismic data to quantitative interpretation via cloud-based FWI
Henry A. Debens
Australian Energy Producers Journal
...) it consists of iterated rounds of shortoffset least-squares FWI to build reflectivity and deep macro-model updates to match reflection moveout; (2...
2024
Offshore Positioning Systems: The Human Interface
D. F. Haines
Southeast Asia Petroleum Exploration Society (SEAPEX)
... filtering method in use gyro heading method of calculation (least squares, error triangles) Output: position coordinates (geographic...
1980
PALEOMAGNETIC ORIENTATION OF FRACTURES IN CORES FROM SOUTHWESTERN MANITOBA FOR HORIZONTAL WELL PLANNING
K. P. GILLEN
Williston Basin Symposium
..., v. 81, p. 75-87. Kirschvink, J.L., 1980, The least-squares line and plane and the analysis of paleomagnetic data, Geophysical...
1998
Adjustments of Velocity Logs to Tie Geophone Surveys
Warren Hicks
Oklahoma City Geological Society
... be used. In favorable areas this approach works out neatly. Usually a least squares fit is made of the log data to the geophone data. Least squares fits...
1961
Normalized energy-norm imaging condition for elastic reverse-time migration
Can Oren, Jeffrey Shragge
International Meeting for Applied Geoscience and Energy (IMAGE)
... energy available at the interface to generate a dimensionless image. Applying a least-squares ERTM framework (Feng and Schuster, 2017), though...
2022
Seismic data reconstruction using denoising convolutional neural network combined with regularization by denoising
Nanying Lan, Kaiheng Sang, Fanchang Zhang
International Meeting for Applied Geoscience and Energy (IMAGE)
... the reconstruction accuracy of seismic data. Then, we combine the constructed RED objective with a least-squares fidelity term to form a novel SDR model...
2022
Mitigating cycle skipping in FWI through preconditioned multidimensional optimal transport
James McLeman, Tim Burgess, Tom Rayment, Victor Chua
International Meeting for Applied Geoscience and Energy (IMAGE)
..., C. C., and M. A. Saunders, 1982a, LSQR: An algorithm for sparse linear equations and sparse least squares: ACM Transactions on Mathematical Software...
2022
A power-law fault model for Bayesian network geosteering in complex geology
Hugh Winkler
International Meeting for Applied Geoscience and Energy (IMAGE)
... of proportionality. Such a distribution is a poor fit for inversion approaches, like least-squares, that minimize the difference between a predicted well...
2022
Elastic frame moduli in a sandstone reservoir used for underground CO2 storage
Colin M. Sayers
International Meeting for Applied Geoscience and Energy (IMAGE)
... deformable than in the clean sandstones of Han (1986) at 40 MPa. This is demonstrated by the least squares fits for VCL < 0.02 shown by the full curves...
2022
Velocity estimation via model order reduction
Alexander V. Mamonov, Liliana Borcea, Josselin Garnier, Jrn Zimmerling
International Meeting for Applied Geoscience and Energy (IMAGE)
... for efficient velocity estimation. While the conventional FWI via nonlinear least-squares data fitting is challenging without low frequency information...
2022
Seismic imaging in shallow water where are we at and where might we be going?
Henry A. Debens, Robert Eliott-Lockhart, Jennifer Moss
Australian Energy Producers Journal
...-offset gathers; (ii) on-the-fly source-function esti mation; and (iii) least-squares imaging with shallow-water surface-related multiples. A secondary...
Unknown
Full-waveform inversion and FWI imaging for land data
James Sheng, Cristina Reta-Tang, Faqi Liu, Alfredo Vzquez Cant, Alejandro Cabrales Vargas
International Meeting for Applied Geoscience and Energy (IMAGE)
... has better defined events and faults (indicated with red arrows) due to the iterative least-squares data fitting, which enhances illumination...
2022
Acquisition geometry design based on full-wavefield migration
Billy A. Revelo Obando, Gerrit Blacquire
International Meeting for Applied Geoscience and Energy (IMAGE)
... evaluate the quality of the obtained image. We propose a least-squares target function JR defined as follows: JR,i = n R(zn ) − Ri+1 (zn ) 2 , (4...
2022
Retrieving high-resolution acoustic impedance using full-waveform inversion in presalt reservoir setting, offshore Brazil
Akshat Abhishek, Alok K. Soni, Rene-Edouard Plessix, Martijn Blaauw, Jaydip Guha, Gautam Kumar
International Meeting for Applied Geoscience and Energy (IMAGE)
... is within half of the wavelength) between observed and modeled data (Mora, 1988). A typical time-domain FWI least-squares objective function (Pratt...
2022
Optimized downward continuation for the one-way wave equation in TTI media
Cosmin Macesanu, Faqi Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
... coefficients a, b, . . . are usually estimated by a least squares fit to the exact function P, whose value depends on the direction of waves (encoded...
2022
Problem Areas in Interpretation of Pressure Measurements in Thin and Multi-Layered Reservoirs
C. Fraisse, B. Simon, B. Seto, D. Nardio, J. Pouzet, Y. Grosjean
Indonesian Petroleum Association
... of the Tunu field, this gradient can only be derived from the linear, least squares fit of actual pressure measurements taken from a large number of thin water...
1987
Robust reconstruction via orthogonal matching pursuit with Fourier operators
Ji Li, Mauricio D. Sacchi
International Meeting for Applied Geoscience and Energy (IMAGE)
..., or l1 ). The fitting stage is implemented via Iterative Reweighed Least-Squares (IRLS) method (Holland and Welsch, 1977). We then transfer the optimized...
2022
Caribbean Reef Corals Montastrea annularis and Montastrea cavernosa--Long-Term Growth Data as Determined by Skeletal X-radiography: Reef Biota
Jon N. Weber , Eugene W. White
AAPG Special Volumes
... for Montastrea annularis is derived from Type 1 least-squares linear-regression analysis in which growth rate (G) is taken as the dependent variable...
1977