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The AAPG/Datapages Combined Publications Database
Showing 1,463 Results. Searched 196,121 documents.
Joint 4D full-waveform inversion using enhanced template-matching objective function
Gaurav Dutta, Emmanuel Saragoussi, Xin Cheng, Markos Sourial, Yongbo Zhai, Chirag Parekh, Denes Vigh
International Meeting for Applied Geoscience and Energy (IMAGE)
... and has better resolution than the 4D RTM difference due to the enhancement in bandwidth obtained due to the non-linear least-squares approach...
2023
Predicting S-wave sonic logs using machine learning with conventional logs for the Delaware Basin, Texas
Jaewook Lee, Yangkang Chen, Robin Dommisse, Alexandros Savvaidis, Guo-chin Dino Huang
International Meeting for Applied Geoscience and Energy (IMAGE)
... Wide (1 layer) 9.58 0.75 Kernel Support Vector 12.64 0.56 Machines Kernel Least Squares Kernel 11.92 0.61 hypocentral depth estimation...
2023
Determination of T2 Cut-Off for Shale Reservoirs: A Case Study from the Carynginia Formation, Perth Basin, Western Australia
M. Nadia Testamanti, Reza Rezaee, Yujie Yuan, Dawei Pan
Australian Petroleum Production & Exploration Association (APPEA) Journal
... of 0.1 ms. The raw decays were later processed with the Lawson and Hanson module in Prospa software, which implements the non-negative least-squares...
2017
Uncertainty quantification of anisotropic elastic constants and mud speed using borehole sonic data
Ting Lei, Kristoffer Walker, Adam Donald, Alexei Bolshakov, Lin Liang, Romain Prioul, Edgar Ignacio Velez Arteaga
International Meeting for Applied Geoscience and Energy (IMAGE)
..., involving many trial inversions at each depth. The Monte-Carlo process utilized the constrained sequential least squares (SLSQP) algorithm (Kraft, 1988...
2023
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
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
Convolution model theory-based intelligent AVO inversion method for VTI media
Yuhang Sun, Yang Liu, Hongli Dong
International Meeting for Applied Geoscience and Energy (IMAGE)
... or the least squares theory to optimize elastic parameters, aligning the synthesized seismic data with the field seismic data (Hu et al., 2011; Chen et al...
2023
Elastic FWI imaging of a complex presalt structure using NATS data
Arthur Henrique, Luiz Felão, Sergio Barragan, Florian Jouno
International Meeting for Applied Geoscience and Energy (IMAGE)
... of conventional FWI based on a least-squares cost function, which is prone to cycleskipping and amplitude discrepancies between observed and Third International...
2023
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
Dual constrained reservoir modeling with geological factors and seismic attributes for exploration stage
Hongmei Luo, Yiran Xing, Changjiang Wang, Zhijing Zhang
International Meeting for Applied Geoscience and Energy (IMAGE)
... a quadratic polynomial nonlinear relation is established by the least squares method between the fan's advance distance(L), width-to-depth ratio(k), boundary...
2023
Estimating Smectite Content from Seismic Data
Roman Beloborodov, Marina Pervukhina, Valeriya Shulakova, Dimitri Chagalov, Matthew Josh, Michael B. Clennell, Gavin Ward, Matthew Waugh, Juerg Hauser
Australian Petroleum Production & Exploration Association (APPEA) Journal
... and seismic data were then used in a constrained least-squares inversion using linearised Zoeppritz equations (Rüger 1997) to obtain estimates...
2019
The Optimum Use of Gravity in Exploration
Frederick E. Romberg
GCAGS Transactions
... by a least-squares fit the best set of masses below a given depth which could physically give rise to the broad anomalies. This could be done on a computer...
1965
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
The Next Generation of Risk-Based Inspection for Coal Seam Gas Wells
Scott Collins, Joel Everson
Australian Petroleum Production & Exploration Association (APPEA) Journal
...). In this implementation, three measured corrosion rate functions were used: the long-term corrosion rate, short-term corrosion rate and the least...
2020
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
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
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
Pencirian geologi kejuruteraan dan geofizik batuan formasi Kenny Hill di tapak Kamsis H, Universiti Kebangsaan Malaysia (IN MALAY), Engineering geological and geophysical characterization of rocks of the Kenny Hill formation at Kamsis H, Universiti Kebangsaan Malaysia
Lakam anak Mejus, Abdul Ghani Rafek, Abdul Rahim Samsudin, Umar Hamzah, Rahman Yaccup
Geological Society of Malaysia (GSM)
... Sarjana Sains, Universiti Kebangsaan Malaysia, Bangi (tidak diterbitkan). LOKE, M.H. AND BARKER, R.D., 1995. Least-Squares Deconvolution of Apparent...
2003
Rooting Against a Recovery?
Russell Evans
Oklahoma City Geological Society
... specific economic influences, and ∈, a random error term. Brown estimates this model in a two-stage least squares framework to account for potential...
2016
Geometry and Fractal Characteristics of the Sumatra Active Fault
Sigit Sukmono, M. T. Zen, W. G. A. Kadir, Lilik Hendrajaya, Djoko Santoso
Indonesian Petroleum Association
...-line least squares fit to these data and range from 1.00 ± 0.03 to 1.24 ± 0.03. For 1 < D < 2 one cannot consider the fault as a plane; one has...
1995
Fracture Stimulation of the Eagle Sandstone on the Cedar Creek Anticline
Trent Green, Monte Besler, Dennis Zander
Rocky Mountain Association of Geologists
... is even better than AOF testing predicted. 35,000 Median Offset Well AOF 30,000 25,000 20,000 15,000 10,000 Observed Least Squares Fit 5,000 0...
1997
Groundwater Investigation Using Electrical Resistivity Imaging Technique at Sg. Udang, Melaka, Malaysia
Zeinab Asry, Abdul Rahim Samsudin, Wan Zuhairi Yaacob, Jasni Yaakub
Geological Society of Malaysia (GSM)
..., M.H. & Barker, R.D., 1995. Least-squares deconvolution of apparent resistivity pseudosections. Geophysics, 60: 1682–1690. Loke, M.H., 1997...
2012