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The AAPG/Datapages Combined Publications Database
Showing 1,682 Results. Searched 200,616 documents.
Identification of Bypassed Oil Using Gamma-Ray Spectrometry Tool in Old Wells
A. K. Yasmin Mohamad, G. L. Snijder
Southeast Asia Petroleum Exploration Society (SEAPEX)
... computer by determining a least squares fit of the standards to the measured spectrum. The GST will measure in the inelastic mode the yields of C, Ca...
1986
New design of marine controlled-source electromagnetic transmitter using supercapacitors
Tanvir Alam Shifat, Xiaolei Tu, Yue Cao, Adam Schultz
International Meeting for Applied Geoscience and Energy (IMAGE)
... for hydrocarbon applications, in The Earth’s Magnetic Interior: Springer, Dordrecht, 101–115. Tu, X., and M. S. Zhdanov, 2021, Least squares migration...
2022
Large-scale Marchenko imaging with distance-aware matrix reordering, tile low-rank compression, and mixed-precision computations
Matteo Ravasi, Yuxi Hong, Hatem Ltaief, David Keyes, David Vargas
International Meeting for Applied Geoscience and Energy (IMAGE)
...work for the implementation of large-scale integral operators with flexible, modern HPC solutions - enabling 3D Marchenko imaging by least-squares inversion: Geophy...
2022
A shallow velocity model building using full-waveform inversion on 3D onshore dataset
Young Seo Kim, Jewoo Yoo, Tong Fei, Ali Almomin
International Meeting for Applied Geoscience and Energy (IMAGE)
...2022 Society of Exploration Geophysicists and the American Association of Petroleum Geologists References Chi, B., K. Gao, and L. Huang, 2017, L...
2022
Understanding the Uncertainty of Gas Saturation Estimates: An Example from a Single Subbituminous Coal Seam
Tennille Mares, Tim Moore, Catherine Moore
Petroleum Exploration Society of Australia (PESA)
... Geology, 77(3-4): 320-327. MIKHAIL E.M. and ACKERMAN F., 1976. Observations and least squares. IEP, A. Dun-Donnelly Publisher, New York. 497 pp. MOORE...
2012
Wave Climate Effects Upon Changing Barrier Island Morphology, Kouchibouguac Bay, New Brunswick
Edward Bryant
Atlantic Geology
... for this purpose. In the Dobson program, a second degree polynomial is fitted to regularly gridded bathymetry using a least squares algorithm. Calculations...
1978
Amplitude Recovery of Digitally Recorded Data
Roy O. Lindseth
Pacific Section of AAPG
.... The simplest approach to the compensation operation is merely to calculate by least squares an exponential decay curve to fit the entire seismic trace...
1972
Joint velocity and event location inversion workflow in microseismic reservoir monitoring
Takashi Mizuno, Joel Le Calvez, Manish Lal Khaitan, Giulia Barisione, Irina-Tulia Stoia, Prakash Ranjan, Stefano Clerico, Xinyuan Li, Zheyuan Huang
International Meeting for Applied Geoscience and Energy (IMAGE)
... location method, the least squares method (Geiger, 1912) computes event location for a given velocity model with an objective function value. Normalized...
2022
The generation of equivalent sources by 3D skeletonization of the migration density field
James Brewster
International Meeting for Applied Geoscience and Energy (IMAGE)
...ficient is found from a least squares fit to the current residual gravity gradient field. For this purpose, the five components of the gravity gradient tensor...
2022
The Tsunami Survey Offshore Sumatra, a Cooperative Geo-Technical Project for Deep Crustal Study WesternGeco/Schlumberger/CNRS-IPG Paris/BPPT
Soelistijani M, Martin Bayly, Tim Bunting, Satish C. Singh
Indonesian Petroleum Association
... least squares radon demultiple filter once a velocity field was developed. Before final stacking, time and space variant inside muting and spectral...
2008
Thin Bed Resolution and the Determination of Flushed Zone Resistivity in Oil Based Mud
Joseph F. goetz, Roland Chemali, Douglas J. Seifert
Geological Society of Malaysia (GSM)
.... SmvA, a global mapping dip computation program, makes optimum use of the available redundancy through a weighted least squares optimization approach...
1990
Improving subsalt images using FWI and FWI imaging: A streamer case study at Big Foot
Weihong Fei, Jingru Chen, Min Yang, Leah Grassi, Erik Everson, Paul Bovet, Marin Laomana, Sheree Wold, Alex Yanjun Hao, Chi Chen, Shubin Zeng, Zhiyuan Wei
International Meeting for Applied Geoscience and Energy (IMAGE)
... illumination and to improve the subsalt S/N, benefited from the least-squares data fitting Second International Meeting for Applied Geoscience & Energy...
2022
Seismic reflectivity inversion via a regularized deep image prior
Hongling Chen, Mauricio D. Sacchi, Jinghuai Gao
International Meeting for Applied Geoscience and Energy (IMAGE)
...–R158, doi: https://doi.org/10.1190/geo2011-0103.1. Zhang, W., J. Gao, X. Jiang, and W. Sun, 2022, Consistent least-squares reverse time migration using...
2022
Q-compensation imaging of anisotropic viscous quasi-acoustic media along wavefield propagation path
Bohan Zhang, Huazhong Wang
International Meeting for Applied Geoscience and Energy (IMAGE)
.... T. Schuster, 2014, Attenuation compensation for least-squares reverse time migration using the viscoacoustic-wave equation: Geophysics, 79, no. 6, S251–S262...
2022
Two Rb-Sr Whole Rock Isochrons from Plutons in the Cobequid Highlands, Nova Scotia, Canada
H. V. Donohoe, A. N. Halliday, J. Duncan Keppie
Atlantic Geology
...: Geological Survey of Canada Paper 73-2, 139 p . YORK, D. 1969. Least squares fitting of a straight l e in with correlated errors. Earth and Planetary...
1986
Incorporating estimates of data covariance in elastic FWI to combat random and correlated noise
Luping Qu, Scott Keating, Kristopher A. Innanen, Xin Fu
International Meeting for Applied Geoscience and Energy (IMAGE)
... on this information. The least squares (L2) norm of the misfit between the observed and predicted data is the most commonly used penalty function for FWI (Tarantola...
2022
The North American Datum of 1983 and Its Effect on the Petroleum Industry
James G. Morgan
Houston Geological Society Bulletin
... of the project, the final 1983 readjustment involved finding a least squares solution of a system of approximately 6,000,000 equations in 500,000...
1988
Effect of Organic Matter Properties, Clay Mineral Type and Thermal Maturity on Gas Adsorption in Organic-Rich Shale Systems
Tongwei Zhang, Geoffrey S. Ellis, Stephen C. Ruppel, Kitty Milliken, Mike Lewan, Xun Sun
Unconventional Resources Technology Conference (URTEC)
... be determined with a least-squares method to fit our experimentally measured CH4-sorption isotherms and the calculated isotherms with Eq. (1...
2013
Cascaded full-waveform inversions to resolve Mesozoic structures in shallow-water Gulf of Mexico with limited-offset data
Wei Kang, Christoph Koeninger, Miguel Acosta Perez, Josue Jurado Ramirez, Imran Nagir, Denes Vigh, Silvino Dominguez Garcia, Alfredo Vazquez Cantu, Luis Arturo Vega, Marco Antonio Mayorga
International Meeting for Applied Geoscience and Energy (IMAGE)
... the least-squares or 1D phase-based objective functions fails to handle the complex wavefield when the observed and predicted shots have different patterns...
2022
A New Technique for the Analysis of Commingled Oils and Its Application to Production Allocation Calculations
R. L. Kaufman, A. S. Ahmed, W. B. Hempkins
Indonesian Petroleum Association
... least squares approach. The program uses the end member chromatographic data as input and assumes linear mixing behavior. To a first approximation...
1987
One more stride forward in Thunder Horse subsalt imaging with elastic FWI
Bunmi Elebiju, Qingsong Li, Ken Hartman, Francis Rollins, Ye Feng, Karl Kaiser, Werner Schinagl, Chi Chen, Alex Yanjun Hao, Zhiyuan Wei, Jiawei Mei
International Meeting for Applied Geoscience and Energy (IMAGE)
... for pinchout QC validation. (a) 30 Hz Least-Squares and (b) 20 Hz Quadrature RTM image with E-TLFWI model. (c) Acoustic FWI Image; and (d) elastic FWI Image...
2022
2D and 3D Structural Balancing in a Deformed Foreland Basin, Peruvian Subandean Belt
D.R. Richards, S.J. Calvert, H. Yamamoto
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
.... Rouby, D., P.R. Cobbold, P. Szatmari, S. Demercian, D. Coelho & R. Ricci, 1993, Least squares palinspastic restoration of regions of normal faulting...
2003
Use of Corals in Determining Glacial-Interglacial Changes in Temperature and Isotopic Composition of Seawater: Reef Biota
Jon N. Weber
AAPG Special Volumes
... National Ocean Survey Publication 31-3 (1970). Type 1 least-squares linear-regression analys s was used to calculate the best-fit curve expressing...
1977
High-resolution seismic imaging of shallow karstified carbonate overburden offshore Indonesia
Xiaobo Li, Yonghe Guo, Yi Xie, Barry Hung, Ilham Panggeleng, M. R. Husni Sahidu, Sarah Putri
International Meeting for Applied Geoscience and Energy (IMAGE)
..., Eastern Indonesia: The Leading Edge, 39, 574–582, doi: https://doi.org/10.1190/tle39080574.1. Poole, G., 2021, Least-squares multiple imaging constrained...
2022
Estimation of helical fiber pitch angle and trace spacing from colocated DAS, accelerometer, and geophone datasets
Kevin W. Hall, Don C. Lawton, Kristopher A. Innanen
International Meeting for Applied Geoscience and Energy (IMAGE)
.... Monsegny, J. E., K. W. Hall, D. O. Trad, and D. C. Lawton, 2021, Least-squares DAS to geophone transform: First International Meeting for Applied...
2022