Abstract: Predicting Free Surface Multiples without the Water: SRME on Land; #90224 (2015)

Keith Wilkinson, Richard Bale, and Ken Gray

Search and Discovery.com

... in this paper 5. Least squares adaptive subtraction of predicted multiple Datapages/Search and Discovery Article #90224 GeoConvention © 2014, FOCUS - Adapt...

Synthetic Well Log Generation Using Machine Learning Techniques

Oyewande Akinnikawe, Stacey Lyne, Jon Roberts

Unconventional Resources Technology Conference (URTEC)

... or power, or interactions between input variables. The most popular estimation method for linear regression is least squares method. Least square...

A New Approach to Apply Decline-Curve Analysis for Tight-Oil Reservoirs Producing Under Variable Pressure Conditions

Leopoldo M. Ruiz Maraggi, Mark P. Walsh, Larry W. Lake

Unconventional Resources Technology Conference (URTEC)

... least-squares regression between the actual oil rate and to obtain the decline-curve model’s production history-match. This approach has been proposed...

Type Wells - A Physics-Blind Statistical Myth? Our RTA Driven Construction Methodology Proves Otherwise!

Sriniketh Sukumar, W. John Lee,

Unconventional Resources Technology Conference (URTEC)

..., by finding the slope of a least-squares best-fit straight line for the transient flow portion of the data immediately preceding BDF, as shown in Fig. A-5...

Bulk Density--Water Content Relationship in Marine Silts and Clays

Adrian F. Richards, Terrence J. Hirst, James M. Parks

Journal of Sedimentary Research (SEPM)

... (Eq. 3) for all the data shown in Figure 1. The regression equation for the computer-drawn linear least-squares line fitted to these data is: e...

Fracture-enhanced Porosity and Permeability Trends in the Bakken Formation, Williston Basin, Western North Dakota

Wayne B. Freisatz

Williston Basin Symposium

... member). The three informal members of the Bakken Formation show an apparent onlapping relation, with the lower shale the least extensive...

Tiltmeter Mapping and Monitoring of Hydraulic Fracture Propagation in Coal: A Case Study in the Warrior Basin, Alabama

George A. Gazonas, Chris A. Wright, M.D. Wood

Rocky Mountain Association of Geologists

... at the injection depth (approximately 480 feet). The solution provided is the best in a least squares sense and can be visualized in azimuth-dip space...

Assessment of Rate Normalization and Pressure Deconvolution Techniques to History-Match and Forecast Production of Tight-Oil Reservoirs Using a Physics-Based Rate-Time Model

Leopoldo M. Ruiz Maraggi, Larry W. Lake, Mark P. Walsh

Unconventional Resources Technology Conference (URTEC)

... cross-validation = initial condition = leave-one-out = least-squares = million = partial differential equation = R-squared (Pearson's correlation...

Longshore Grain Sorting and Beach Placer Formation Adjacent to the Columbia River

Michael Zhenlin Li, Paul D. Komar

Journal of Sedimentary Research (SEPM)

..., differing only in the rate at which m decreases with the effective-density ratio (EDR). The empirical curve fitted by least-squares regression to our...

Trishear: A Review of Kinematics, Mechanics, and Applications

Stuart Hardy, Richard W. Allmendinger

AAPG Special Volumes

... the identification of best-fit criteria; Allmendinger chose a least-squares linear regression to identify the point at which an unfolding keybed most...

Identification of genetically distinct petroleum tribes in the Middle Magdalena Valley, Colombia

William Thompson-Butler, Kenneth E. Peters, Leslie B. Magoon, Allegra Hosford Scheirer, J. Michael Moldowan, Vladimir Orlando Blanco, Roman Eugenio Gonzalez, Stephan A. Graham, John E. Zumberge, and David A. Wavrek

AAPG Bulletin

... among oil samples from the MMV. In addition, alternating least squares of concentration (ALS-C) is employed to identify end-members and deconvolute...

Submarine Slumps

David G. Moore

Journal of Sedimentary Research (SEPM)

... depths within the cores using the vane shear techniques. Strength data from these two areas were plotted against burial depth and least squares lines...

The Influence of Transport Fluctuations on Spatially Averaged Topography on a Sandy, Braided Fluvial Fan

Chris Paola, Gary Parker, David C. Mohrig, Kelin X. Whipple

Special Publications of SEPM

... of the form O F t and to may be E where F is a least squares fitted function and E is a normally distributed random variable with zero mean This allows...

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...

Physics-Informed Machine Learning Approach for Closed-Loop Reservoir Management Using RGNet

Zhenyu Guo, Sathish Sankaran

Unconventional Resources Technology Conference (URTEC)

.... (2002). Weighted least squares support vector machines: robustness and sparse approximation. Neurocomputing, 48(1), 85–105. Suykens, J. A. K...

CSPG/CSEG/CWLS GeoConvention 2009, May 4-8, 2009 Roundup Centre, Stampede Park & ERCB Core Research Centre, Calgary, Alberta, Canada; - Abstracts, #90171 (2013).

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CSPG/CSEG/CWLS GeoConvention 2009, May 4-8, 2009 Roundup Centre, Stampede Park & ERCB Core Research Centre, Calgary, Alberta, Canada; - Abstracts, #90171 (2013).

Search and Discovery.com

Quantifying the Mechanisms Contributing to Surface Relaxation of Protons in Kerogen Pores of Organic-Rich Mudrocks

Saurabh Tandon, Zoya Heidari, Archana Jagadisan

Unconventional Resources Technology Conference (URTEC)

... signal using a least squares curve fitting method (Aster et al. 2005). We used the Inversion recovery with CPMG sequence (Carr and Purcell, 1954; Coates...

Mapping Rock-Property Changes and Fluid Migration Due to Hydraulic Fracturing

Jyoti Behura

Unconventional Resources Technology Conference (URTEC)

... 6. The gradient of the least-squares objective function is efficiently computed using the adjoint-state method described in Tromp et al. (2005); Askan...

Rheological and Chemical Properties of Alaska Heavy Oils

Matthew W. Liberatore, Andrew M. Herring, Kejing Li, Ala Bazyleva, Babajide Akeredolu, Manika Prasad, Michael Batzle

Unconventional Resources Technology Conference (URTEC)

... variables (X matrix) and correlated with viscosities (Y matrix) using partial least squares regression analysis (PLSRA) with full cross validation...

Seismic Based Characterization of Baturaja Carbonate at 3D Topaz Area; #50531 (2012)

Indra Yuliandri, Totong Usman, and Muharram Panguriseng

Search and Discovery.com

..., U.S.A., 608 p. Lines, L.R. and S. Treitel, 1984, A review of least-squares inversion and its application to geophysical problems: Geophysical...

Tracerscan – A Spectroscopy Technique for Determining the Distribution of Multiple Radioactive Tracers in Downhole Operations

L. L. Gadeken, H. D. Smith Jr., Choung Nguyen

Indonesian Petroleum Association

... spectroscopy logging. This elemental separation can be achieved using spectral stripping techniques6 or using a weighted least-squares algorithm similar...

Horizon detection with CNN-based multiscale volumetric flattening

Jesse Lomask

International Meeting for Applied Geoscience and Energy (IMAGE)

... surfaces are subsequently fitted to these dips using least squares inversion. This method is demonstrated on 3D seismic using both 2D and 3D CNNs...

Reserve Estimation With Unified Production Analysis

Mohamed Mehana, Jeff Callard

Unconventional Resources Technology Conference (URTEC)

... in the model fit is flowback, where production rates are less than peak production rate. Figure 2: Least squares average error for specific selection...

Method to Produce Grain-Scale Digital Images of Large Experimental Sedimentary Deposits and Other Imperfectly Flat Stratigraphy

Jim Mullin, Chris Ellis

Journal of Sedimentary Research (SEPM)

... positioning and a simple least-squares fitting routine (one which does not morph image dimensions) could handle slight errors in camera location without...