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...

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...

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...

Transverse Ribs: Their Characteristics, Origin and Paleohydraulic Significance

Emlyn H. Koster

CSPG Special Publications

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

Porosity and mineralogy in the Lajas tight gas sandstone reservoir, Neuquén Basin, Argentina

Nathan Lavauzelle, Marja Siitari-Kauppi, Paul Sardini, Didier Loggia, Juuso Sammaljärvi, Daniel Beaufort, Ana Laura Rainoldi, Daniel Minisini

Journal of Sedimentary Research (SEPM)

... image). The specific porosity of each mineral group can be estimated by the least-squares procedure (Robinet et al. 2015). This work presents...

Evaluation of Water Hammer Analysis as Diagnostic Tool for Hydraulic Fracturing

Xiang Ma, Fuping Zhou, Jose Alberto Ortega Andrade, Shekhar Gosavi, Damian Burch

Unconventional Resources Technology Conference (URTEC)

..., an ordinary least squares objective function would not work because the magnitude of pressure changes significantly during the well shut...

Modeling and Optimization of Proppant Distributions in Multi-Cluster Hydraulic Fracture-Natural Fracture (HF-NF) Networks

Yidi Wu, George J. Moridis, Thomas A. Blasingame

Unconventional Resources Technology Conference (URTEC)

...o minimize the cost function. To URTeC 5471 9 perform this optimization, the stochastic gradient descent and back propagation methods is impl...

Transactions: Gulf Coast Association of Geological Societies; 2016 Front Matter

Jennifer M. Smith-Engle, James J. Willis, Jill C. Willis, Norman C. Rosen, Dorene B. West

GCAGS Transactions

..., Using Corrected Bottom-Hole Temperatures 635 Wilson, Zachary, and Seiichi Nagihara Practical Application of Adaptive Least-Squares Reverse Time...

Dynamics of Bedforms in the Lower Mississippi River

David J. Harbor

Journal of Sedimentary Research (SEPM)

... lines show a least-squares linear regression. The downstream segment (triangles) has larger dunes for a given flow depth. FIG. 9. Enhancement of bedform...

A scale-independent approach to fracture intensity and average spacing measurement

Orlando J. Ortega, Randall A. Marrett, Stephen E. Laubach

AAPG Bulletin

... of the power law, as determined by least-squares regression).The size distribution for the example discussed above (Figure 5) is shown in Figure 6. A power law...

Forecast of economic gas production in the Marcellus Shale

Wardana Saputra, Wissem Kirati, David Hughes, and Tadeusz W. Patzek

AAPG Bulletin

... the best—in the least squares sense—predictions of possible futures, are free from bias, and avert significant over- or underpredictions of reserves...

Guizhou modern karsts as analogues for paleokarst reservoirs in the Shunbei oil field, Tarim Basin, China

Jingbin Wang, Dongya Zhu, Zhiliang He, Haiming Song, Quanyou Liu, Cheng Zeng, Tianbo Yang, and Qian Ding

AAPG Bulletin

... a least-squares inversion by RES2DINV. These inversion data were further introduced into Surfer software to restrain potential abnormal occurrences...

CSPG/CSEG/CWLS GeoConvention 2011; - Abstracts, #90173 (2015).

Search and Discovery.com

Coal Quality, Coal Rank Variation and its Relation to Reconstructed Overburden, Upper Cretaceous and Tertiary Plains Coals, Alberta, Canada

John R. Nurkowski

AAPG Bulletin

... the equilibrium moisture loss to depth of coal seam burial, using the relationship: log10MEQ = 1.865 - 0.000416 DOB. A least-squares regression analysis...

Extending Graphic Correlation to Many Dimensions: Stratigraphic Correlation as Constrained Optimization

William G. Kemple, Peter M. Sadler, David J. Strauss

Special Publications of SEPM

... the familiar least squares linear loose analogy with the evaluation of regression we suggest a a hypothetical aqueduct project The second part explains how...

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...

Interpreting Permeability from Mercury Injection Capillary Pressure Data; #41660 (2015)

Alton A. Brown

Search and Discovery.com

...(-0.16φ) (porosity in percent) The model is fit to the lower part of the data cloud rather than a least-squares fit (Figure 18). Regression fit...

Water

K. O. Emery, Elazar Uchupi

AAPG Special Volumes

... and again in 1929 the net was made internally consistent by a least-squares "special adjustment." Fig. 198. Comparison of mean monthly sea levels...

Quantitatively evaluating the sources of taphonomic biasing of skeletal element abundances in fossil assemblages

Jason R. Moore, David B. Norman

PALAIOS

... of simple linear regression. Simple linear regression is also known as ordinary least squares (OLS) regression. OLS regression is a bivariate...

Construction and Application of a Stratigraphic Inverse Model

Timothy A. Cross, Margaret A. Lessenger

Special Publications of SEPM

... of the inverse model is to minimize 2 and least squares In a perfect world the inverse model would determine the values of the parameters ab a2...

Architectural analysis of subsurface meander-belt sandstones: A case study of a densely drilled oil field, Zhanhua sag, east of Bohai Bay Basin

Zhifeng Sun, Chengyan Lin, Xianguo Zhang, Dongxing Du, Yong Yang, and Jia Guo

AAPG Bulletin

... province: AAPG Bulletin, v. 87, no. 2, p. 197–230, doi:10.1306/09240201054. Huang, Y. S., and G. T. Schuster, 2012, Multisource least-squares migration...

Wireline Geochemical Log Analysis of Thin Bed Reservoirs: Gulf of Mexico

R. V. Everett, J. E. Mc Donald, M. M. Herron

New Orleans Geological Society

... and in the detector. Analysis of the intensity of gamma rays present in such a spectrum by a set of standards, uses a weighted-least-squares (WLS...

Lithology Dependence of Porosity in Slope and Deep Marine Sediments

Michelle A. Kominz, Kyle Patterson, Danielle Odette

Journal of Sedimentary Research (SEPM)

... calculated for subsets of the data dominated by each lithology. Simple exponential fits were calculated using a least-squares approach (e.g., Snedecor...

Sedimentation and Trapping Mechanism in Upper Miocene Stevens and Older Turbidite Fans of the Southeastern San Joaquin Valley, California

Bruce A. MacPherson

Pacific Section of AAPG

..., the best least squares fit for these data is a straight line — a further verification of Hubbell’s original observation. Oil Occurrence — Greeley...

Introduction to Fractals

Roy E. Plotnick

Special Publications of SEPM

... the Richardson plot for coastline length versus size of the measuring "yardstick;" the slope of the least-squares fit is 0.27, yielding a fractal...