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The AAPG/Datapages Combined Publications Database

Showing 1,682 Results. Searched 200,685 documents.

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Theory and Methodology for Seismic Texture Analysis: Implications for Seismic Facies Visualization and Interpretation

Dengliang Gao

GCAGS Transactions

... with the model by calculating regression gradient based on a linear least-squares regression analysis. To minimize the impact of phase of wiggle traces...

2006

Comparison of the Descriptors of Sediment Grain-Size Distributions: DISCUSSION

Basanta K. Sahu

Journal of Sedimentary Research (SEPM)

... for computation of Edgeworth's estimators by nonlinear least squares method will be great and in view of the inaccuracies of sieve data (as pointed out in A above...

1971

Utility of Mechanical Facies for Rock Classification, Characterization, and Correlation: Reservoir Characterization: Petrophysical Formation Evaluation and Rock Description

K. A. Alhilali, G. Shanmugam

AAPG Special Volumes

... reflect the different composition and matrix structure of each group, which they often do, then estimates of porosity, based on a least-squares line...

1991

Relation Between Chlorinity and Conductometric Salinity in Black Sea Water: Water

Klaus Kremling

AAPG Special Volumes

...)] Inserting the values from Table 1 and using the method of least squares, we can calculate b and a: b = 1.8128 and a = 0.0002. The standard deviation...

1974

Structural Significance and Analysis of Mid-Continent Gravity High

Richard L. Coons , George P. Woollard , Garland Hershey

AAPG Bulletin

.... Exploration Geophysicists Yearbook, p. 267. Simpson, S. M., Jr., 1954, Least squares, polynomial fitting to gravitational data and density plotting...

1967

Approximation of Geothermal Gradients in Northern West Virginia Using Bottom-Hole Temperatures from Electric Logs: GEOLOGIC NOTES

T. W. Grisafi , H. H. Rieke, III , D. R. Skidmore

AAPG Bulletin

... least-squares fit the coefficients of a seventh-degree polynomial. A high-degree polynomial was deemed desirable so that results from later...

1974

Improved Statistical Method for Assessment of Undiscovered Petroleum Resources

David J. Forman, Alan L. Hinde

AAPG Bulletin

... of field size (for fields of the same rank) plotted against discovery number. The average straight line has been fitted to the data by the least-squares...

1985

Abstract: Sub-Basalt Integrated Geophysical Study Islandmagee, Northern Ireland; #90171 (2013)

M. Best, R. Charters, K. Morrison, and C. Nahas

Search and Discovery.com

.... References Loke, M.H., and Barker, R.D., 1996, Rapid least-squares inversion of apparent resistivity pseudosections by a quasi-Newton method: Geophysical...

2013

Abstract: Sub-Basalt Integrated Geophysical Study Islandmagee, Northern Ireland; #90171 (2013)

M. Best, R. Charters, K. Morrison, and C. Nahas

Search and Discovery.com

.... References Loke, M.H., and Barker, R.D., 1996, Rapid least-squares inversion of apparent resistivity pseudosections by a quasi-Newton method: Geophysical...

2013

Abstract: A New Method of Multiple Attenuation: Multiple Identification and Subtraction (II); #90171 (2013)

Wen-Jing Wu

Search and Discovery.com

... be that the Radon transformation method, based on the best fit to input data by least-squares sense, treats signal and noise equally, and MIDAS, based...

2013

Abstract: Monte Carlo Markov Chain Methods in Seismic Deconvolution; #90174 (2014)

Andres Medina and Mirko van der Baan

Search and Discovery.com

... of a linear filter. Wiener filtering is one of the most commonly applied techniques for wavelet removal as it can be shown to be optimal in a least squares...

2014

Abstract: Array Analysis of Surface Microseismic Data from the Rolla Microseismic Experiment; #90174 (2014)

Katarina Seckarova and David W. Eaton

Search and Discovery.com

... with the smallest least-squares error provided the solution. In addition, error plots provide a measure of the level of uncertainty in these parameters...

2014

Abstract: Towards Using Harmonic NoiseŽ to Image Shallow Thin Reflectors; #90187 (2014)

Christopher B. Harrison, Gary Margrave, Michael Lamoureux, Art Siewert, Andrew Barrett, and Helen Isaac

Search and Discovery.com

... of algorithms that decomposed harmonics from a single vibrator sweep. The Gabor transform and least squares methodology were used by Harrison et al. (2012...

2014

Abstracts: Ground Roll Attenuation Using LWD; #90173 (2015)

Ken Kocon and M. Sacchi

Search and Discovery.com

... Geophysicists (Ed.), 74th Annual International Meeting, Expanded Abstracts (2004). Theune, U., M. Sacchi, and D. Schmitt. “Least-squares local Radon transforms...

2015

Abstracts: Using Seismic Source Parameters to Characterize Reservoir Deformation; #90173 (2015)

Marc Prince, Adam Baig and Ted Urbancic

Search and Discovery.com

... in Figure 1, expected energy release values are based on a least squares fit of the scatterplot of moment magnitude versus seismic energy. As such, regions...

2015

Abstract: Real Time Microseismic Monitoring in China: A Case Study; #90224 (2015)

Michael D. Kratz

Search and Discovery.com

.... The source mechanism solution for microseismic events is derived by assuming a point source and using a least squares inversion of the observed Pwave...

2015

Microseismic Monitoring of a Multi-Stage Fracture in the Bakken Formation, SE Saskatchewan; #51061 (2015)

Rob Kendall

Search and Discovery.com

... the 12, 3-component array centered on the Bakken. Figure 5. Microseismic events as shown in top view (left) and side view (right). A least squares...

2015

Following Seismic Depth Imaging Technology for the Mexican Oil Industry: Experiences and Lessons Learned; #70232 (2016)

Sergio Chávez-Pérez, Mario A. Centeno-Miranda, Douglas A. Gómez-Reyes, Liliana Vargas-Meleza

Search and Discovery.com

..., we focused on seismic imaging tools like RTM (reverse time migration) LSRTM (least squares RTM), layer-based and grid-based tomography, FWI (full...

2016

Relative Rock Properties … An Alternative to Estimate Reservoir Properties from Seismic Data; #42177 (2018)

Alvaro Chaveste

Search and Discovery.com

... properties are computed as a linear combination of relative rock properties. The parameters of the linear equation are obtained from well-log data by least...

2018

Inverting Seismic Data with Facies Trends; #42379 (2019)

Ritesh Kumar Sharma, Satinder Chopra

Search and Discovery.com

... and the real angle gather is minimized in a least squares sense. One of the fundamental assumptions made within the simultaneous inversion workflow...

2019

Estimating Parameters for Hierarchical Permeability Correlation Models

Zhenxue Dai, Robert W. Ritzi Jr., David F. Dominic

Special Publications of SEPM

..., and transition probabilities. We adopt a least-squares estimation criterion and use the Levenberg–Marquardt method. We impose constraints so...

2004

The Makran Continental Margin: Structure of a Thickly Sedimented Convergent Plate Boundary: Convergent Margins: Field Investigations of Margin Structure and Stratigraphy

Robert S. White, Keith E. Louden

AAPG Special Volumes

... for the offshore and inshore lines respectively. These travel time corrections assumed that the deep refractors paralleled the sea floor and used least-squares...

1982

Reservoir Characterization and Modeling: A Look Back to See the Way Forward

Xinghe Yu, Y. Zee Ma, David Psaila, Paul La Pointe, Ernest Gomez, Shengli Li

AAPG Special Volumes

... performance data using the least squares method was proposed by Coats et al. (1970). Reservoir description based on well-logging data was conducted...

2011

Transverse Ribs: Their Characteristics, Origin and Paleohydraulic Significance

Emlyn H. Koster

Dallas Geological Society

..., 1961). Inter-relationships of Rib Parameters On the assumption that ribs are formed in association with antidunes, use of least-squares regression...

1977

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