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The AAPG/Datapages Combined Publications Database
Showing 1,680 Results. Searched 200,357 documents.
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)
... c14 0,15 c15 2073,30 Table 3. Correlation parameters for W-O Kr prediction at variable Nc and σ´. Results The error is calculated by the least...
2022
Turbulent Flow
Gerard Middleton, John B. Southard
Special Publications of SEPM
...) is shown by the straight line, with A = 2.43 and B' = 8.56 obtained by a least-squares fit. Included are 8 profiles from 4 sand-lined pipes...
1984
Deblurring migration images with point spread function filter
Cewen Liu, Nanxun Dai, Wei Wu, Xiaofeng Wu, Mingjie Guo, Haohuan Fu
International Meeting for Applied Geoscience and Energy (IMAGE)
... and preconditioning scheme to obtain acceptable least-squares migration (LSM) images with reduced computational cost. However, there are severe overlaps...
2022
A Gravity Analysis of West-Central Calcasieu Parish, Louisiana
Forrest Wilson , James A. Noel
GCAGS Transactions
... values, these points served as the input to least squares and model analysis systems. The least squares, trend surfaces, were calculated and mapped using...
1983
The Next Generation of Risk-Based Inspection for Coal Seam Gas Wells
Scott Collins, Joel Everson
Australian Petroleum Production & Exploration Association (APPEA) Journal
... management system, asset management, degradation prediction, digital twin, inspection interval, inspection optimisation, maintenance strategy, mobility...
2020
Sequential Shrinking Particle Swam Optimization (SSPSO) and Hierarchical K-Means Clustering Methods to Improve Probabilistic History Matching and Forecast
Theoza Nopranda
Indonesian Petroleum Association
... S. P. 1982. Least Squares Quantization in PCM. IEEE Transactions on Information Theory 28: 129-137. https://doi.org/10.1109/TIT.1982.1056489 5...
2022
Regional Trends of Sandstone Porosity Versus Vitrinite Reflectance—A Preliminary Framework
James W. Schmoker, Timothy C. Hester
Rocky Mountain Section (SEPM)
... are ordinary least-squares regression lines with Rm as the independent variable. A given Rm measurement is the mean of tens of individual reflectance...
1990
Prediction of Abnormal Pressure Based on Seismic Data: A Case Study of Exploratory Well Drilling in Pertamina UEP I and UEP II Work Areas
P. Manik, P. A. Soedaldjo
Indonesian Petroleum Association
... be drawn statistically (least squares method). The ITT points which are located to the left of the normal compaction trend line form a subnormal zone...
1984
Resource Assessment and Profitability from Discovery Rate Forecasting
Konstantinos Zorbalas, Rudy E. Rogers
GCAGS Transactions
... of the discovery process and prices of oil and gas: Mathematical Geology, v. 20, p. 939-953. Marquardt, D. W., 1963, An algorithm for least-squares estimation...
1993
Estimation of detachment depths and displacements from the area–depth markers of contractional growth structures: Testing the “inverse line” concept
Sam Rivas-Dorado
AAPG Bulletin
... mapped in a cross section, an inverse line to the area–depth least-squares fit for the growth markers can be calculated. The process to draw the inverse...
2023
Improving Depth Prediction Accuracy of Quantified Drilling Hazards
W. Scott Leaney, William H. Borland
Geological Society of Malaysia (GSM)
... the low frequency trend is determined, a comparatively simple least squares inversion is possible which will find the solution that remains as close...
1996
Deep-Water Channel Run-Out Length: Insights from Seafloor Geomorphology
Jacob A. Covault, Eitan Shelef, Miles Traer, Stephen M. Hubbard, Brian W. Romans, Andrea Fildani
Journal of Sedimentary Research (SEPM)
... systems (Fig. 4A). When these three systems are removed, the coefficient of determination (r2 value) from least-squares regression of the relief...
2012
Computer Utilization of Type Curve for Forecasting Production Performance
A. Partakoesoema, Djumero S.
Indonesian Petroleum Association
... the option to honor the high points or direct the program to find the least squares best fit. The system was given a severe test to evaluate...
1985
Low-frequency data reconstruction for full-waveform inversion
Ramzi Djebbi, Maiza Bekara, Jaime Ramos-Martinez, Nizar Chemingui
International Meeting for Applied Geoscience and Energy (IMAGE)
.... Introduction Full waveform inversion (FWI) aims to recover a highresolution velocity model using least-squares minimization of the difference between field...
2022
An Estimate of the Conventional Crude-Oil Potential in Alberta
J. T. Ryan
CSPG Bulletin
... with a nonlinear least-squares technique to the oil-in-place and recoverable oil reserves and the parameters determined. Tables 2 and 3 give the values...
1973
Elastic full-waveform inversion at regional scale for the northern Gulf of Mexico
Yao Yu, Anastasia Pavlovskaya, Kim Shoemaker, Hongyan Li, Jennifer Qin, David Derharoutian Jr., John Law, Zhao Ge, Ruth Hammans, Vivian Robertson, Kate Glaccum
International Meeting for Applied Geoscience and Energy (IMAGE)
... FWI uses the full wavefield and a non-linear, least squares iterative process, its illumination recovery in the subsalt can be greater than one...
2024
Broad bandwidths reveal double the expected sediment depth in the Northern Carnarvon Basin
Jo Firth, Mark Stanley
Petroleum Exploration Society of Australia (PESA)
... are also addressed, although this technique is not so effective for shallow water bottom multiples, near offsets and outer cables. Least-squares...
2016
Statistical Analysis of Regional Facies Change in Ordovician Cobourg Limestone in Northwestern New York and Southern Ontario
L. Lippitt
AAPG Bulletin
... to be linear and a best fit made to the observational data by the method of least squares. The resulting equation for the regression line (best fit trend...
1959
Carbon Isotope Composition of Natural Methane Occurrences: GEOLOGICAL NOTES
William M. Sackett
AAPG Bulletin
... in Oklahoma, and the highly carbonaceous, Jurassic, Posedonian shale from Germany were pyrolyzed at 500°C. The data and the least squares determined...
1968
Abstract: Variable Depth Streamer Acquisition: Enhancing Interpretation with Broadband Marine Seismic; #90174 (2014)
R. Soubaras, R. Dowle, and R. Sablon
Search and Discovery.com
.... The joint deconvolution can be performed in a least squares sense where there is noise in the data, and can also be performed in a multichannel manner...
2014
Comparison of Discovery Process Methods for Estimating Undiscovered Resources
P. J. Lee, D. Gill
CSPG Bulletin
... approach. Unpublished Ph.D. thesis, University of California at Berkeley, California, USA. 191 p. Marquardt, D.W. 1963. An algorithm for least-squares...
1999
Quartz Fabric in Shales: Quantification and Assessing its Influence on Geomechanical Properties
M. Rebecca Stokes, Andrew P. Rathbun, Paul C. Montgomery, Michael C. Cheshire, E. Russ Peacher
Unconventional Resources Technology Conference (URTEC)
... Method of least squares for multiple regression Multiple regression analysis using a least squares approach was performed with the Microsoft Excel...
2021
Settling Velocity and Grain Shape of Maërl Biogenic Gravel
Siddhi Joshi, Garret P. Duffy, Colin Brown
Journal of Sedimentary Research (SEPM)
... diameter. The reciprocal of convexity increases linearly with diameter. The solid line represents the least-squares fit between the reciprocal convexity...
2014
Building Well and Fluid-Specific Pipe Friction Curves, Monitoring Perforation Cluster Efficiency During Stimulation, and Measuring Near-Wellbore Tortuosity Using Acoustic Friction Analysis
Eric M. Dunham, Saeed Rahimi-Aghdam, Junwei Zhang, Nathan Crawford, Craig Cipolla, Michael McKimmy, John Lassek
Unconventional Resources Technology Conference (URTEC)
... parameters 𝑓! and 𝑎 were determined by nonlinear least squares regression. URTeC: 4044718 7 Figure 4. Compilation from acoustic friction...
2024
Porosity Trends of the Lower Cretaceous J Sandstone, Denver Basin, Colorado
James W. Schmoker, Debra K. Higley
Journal of Sedimentary Research (SEPM)
... sandstone porosity histograms are plotted as a function of vitrinite reflectance in Figures 6-10. Least-squares power-law regression lines with R0...
1991