Permeability of Clays, Silty-Clays and Clayey-Silts

Bryant, William R.

GCAGS Transactions

... obtained were subjected to a least-squares regression fit. The correlation coefficients of the polynomial regression models of the four size groups...

An Approach to Joint Roughness Measurement in Rock „ A Comparative Study

Mohd For Mohd Amin, Teo King Beng, Mushairry Mustaffar, Ho Chin Kun, Loh Tar Her

Geological Society of Malaysia (GSM)

..., 1996. Least Squares Matching: A the area of contact during shear. This is shown Fundamental Measurement Algorithm. In: KB. Atkinson (Ed.), Close...

EXTENDED ABSTRACT: Conforming and Non-Conforming Sands - An Organizing Framework for Seismic Rock Properties

Young, Roger A. and LoPiccolo, Robert D.

GCAGS Transactions

..., muted, moved-out, and migrated set of gathers is analyzed on a sample-by-sample basis. A least-squares, best-fit line is fitted to the amplitudes...

Theory of Nuclear Transmission Densitometry Applied to Sedimentology and Geotechnology

Peter V. Meyers, Wesley J. Van Sciver, Adrian F. Richards

Journal of Sedimentary Research (SEPM)

... relationship with -1sat given in m3/kg. The line intermediate between m = 2500 and 2900 kg/m3 is a computer-drawn least squares fit to the 1680 data...

The Threshold of Grain Motion Under Oscillatory Flow in a Laboratory Wave Channel

John R. Dingler

Journal of Sedimentary Research (SEPM)

... increase the variability of Equation 10 when it is tested by the least-squares method). Komar and Miller (1973; 1975a,b) state that the threshold relation...

Soft soils: A study on their electrical resistivity values and geotechnical properties (porosity, SPT and particle size distribution)

Najmiah Rosli, Rosli Saad, Nazrin Rahman, Nur Azwin Ismail

Geological Society of Malaysia (GSM)

... an existing borehole. The measured 2-DRI data was then subjected to least-squares inversion in conjunction with a smooth constraint to obtain true...

Dolomitization in Chalk from the North Sea Central Graben

Niels Oluf Jorgensen

Journal of Sedimentary Research (SEPM)

... by least-squares analyses of X-ray powder data obtained with a Guinier camera. Stable-isotope analyses were limited to bulk samples because the grain...

Pore Structure in Sandstones by Compressible Sphere-Pack Models

I. Fatt

AAPG Bulletin

... assumption must be considered as applying to an ideal porous medium to which sandstones may approach. Curve 1 in Figure 5 is the least squares fit...

X-Ray Computed Tomography: A Nondestructive Method for Quantitative Analysis of Sediment Cores: RESEARCH METHOD PAPER

Thomas H. Orsi , Carl M. Edwards , Aubrey L. Anderson

Journal of Sedimentary Research (SEPM)

...-density variations of the studied core. The regression line was determined by least-squares analysis and is defined by Eq 6. The correlation...

A Simple Photogrammetric Method to Improve Quantitative Image Analysis in Geoscience Research: RESEARCH METHODS PAPERS

Jesus E. Caracuel, Javier Cardenal, Jorge Delgado-Garcia, Santiago Garcia-Lopez

Journal of Sedimentary Research (SEPM)

... information about morphology, spatial distribution, and linear or surface measurements of features. The simplest and least time-consuming method is taking...

Quantitative Interpretation of Sedimentary Structures Formed by River Dunes

Suzanne F. Leclair, John S. Bridge

Journal of Sedimentary Research (SEPM)

... of bedform heights, h: p(h = h - 1e-h//() [EQUATION (2)] where and can be estimated using least-squares minimization techniques (Press et al. 1986...

The Relative Roles of Compaction and Early Cementation in the Destruction of Permeability in Carbonate Grainstones: A Case Study from the Paleogene of West-Central Florida, U.S.A.

David A. Budd

Journal of Sedimentary Research (SEPM)

..., but grainstones are characterized by an overall decrease in permeability with depth (Fig. 1). A least-squares exponential regression indicates that 26...

High-Resolution Rapid Elemental Analysis Using an XRF Microscanner: RESEARCH METHODS PAPERS

Toshitada Koshikawa, Yoshiki Kido, Ryuji Tada

Journal of Sedimentary Research (SEPM)

.... The background subtracted spectrum is fitted with multi-Gaussian functions using the least-squares method, and overlapping peaks are resolved into individual...

Influences of Diagenetic Environment on Porosity and Permeability of Holocene and Pleistocene Corals: GEOLOGIC NOTES

Michael Scherer

AAPG Bulletin

... to aragonite-calcite ratios of Montastrea annularis and Diploria. End_Page 2154------------------------------ programs for a least-squares procedure...

Effect of Fault-Related Granulation on Porosity and Permeability of Quartz Sandstones, Simpson Group (Ordovician), Oklahoma

Edward D. Pittman

AAPG Bulletin

.... Computer programs for least squares and regression analysis were used to fit the data and test for its statistical significance. DESCRIPTION...

Free Hydrocarbons in Uinta Basin, Utah

Ganjavar Khavari-Khorasani

AAPG Bulletin

... River; GR = Green River (modified from Bell and Hunt, 1963). End_Page 1193------------------------------ A least-squares curve fit computer program...

Analysis of Hydrodynamic Factors in Petroleum Migration and Entrapment

Richard W. Davis

AAPG Bulletin

... on Figure 3. A least squares power regression equation was calculated for the data. The regression line, plotted on Figure 3, indicates...

Variation of organic matter density with thermal maturity

Mark D. Rudnicki

AAPG Bulletin

... be fitted using a least-squares approach to measured data (e.g., the “solver” function of Microsoft Excel can be applied to find the best fit value...

Randomness, serendipity, and luck in petroleum exploration

Alexei V. Milkov, and William C. Navidi

AAPG Bulletin

... plotted against the number of wells drilled, with the least-squares line (line of best fit) superimposed. The line has a positive slope, indicating...

AAPG/SEG Student Expo, September 16-17, 2013, Houston, Texas; - Abstracts, #90182 (2013).

Search and Discovery.com

ABSTRACT: Gravity Model of Mud Volcanoes; #90013 (2003)

FAKHRADDIN KADIROV, IAN LERCHE, IBRAHIM GULIYEV, AZER KADYROV, ABDULVAHAB MUKHTAROV, AKBAR FEYZULLAYEV

Search and Discovery.com

... condition on a multi-parameter functional describing the least squares difference between modeled and observed gravity fields and involving parameters...

Abstract: Azimuthal Fourier Coefficients: A Simple Method to Estimate Fracture Parameters; #90174 (2014)

Jon Downton and Benjamin Roure

Search and Discovery.com

... it in terms of cos(2) and sin(2) and thus be solved in a straightforward fashion using least squares inversion (Downton and Gray, 2006...

Insights into the Regional Evolution of the Outer Fold-and-Thrust Belt, Niger Delta, from Combining New Techniques in 3-D Sequential Geomechanical Restoration with Decompaction; #41026 (2012)

Pauline Durand-Riard and John H. Shaw

Search and Discovery.com

....-M. Morvan, 1997, A least-squares method for multisurface unfolding: Journal of Structural Geology, v. 19/5, p. 735-743. Maerten, L., Gillespie, P...

Allocating the Contribution of Oil from the Eagle Ford Formation, the Buda Formation, and the Austin Chalk to Commingled Production from Horizontal Wells in South Texas Using Geochemical Fingerprinting Technology, #41268 (2014)

David K. Baskin, Alan Kornacki, Mark McCaffrey

Search and Discovery.com

... d b d are measured by Gas Chromatography (GC). A least squares regression is then performed in n-dimensional space space, where n is the number of GC...

How to Look at Frontier Basins: An Example from the Canadian Arctic; #10724 (2015)

Robert Meneley

Search and Discovery.com

... are the discovered fields in the model range. The Solver module in Excel is used to reach a minimum least squares solution for a lognormal curve fit using...