Research on buried hill fracture prediction based on sweet spot attributes of gradient structure tensor in dominant frequency band

Min Gong, Bo Wang, Lin Wang, Rui Wu

International Meeting for Applied Geoscience and Energy (IMAGE)

... be used to perform ellipse fitting through the least squares method, and the ratio K of the short axis to the long axis of the ellipse can be used...

Abstract: The George and Stiles Method of Determining Porosity Cutoffs: A Computer Program, by K. C. Powers; #91017 (1992).

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Abstract: Greedy Least-Squares and its Application in Radon Transforms; #90171 (2013)

Juefu Wang and Mark Ng

Search and Discovery.com

...Abstract: Greedy Least-Squares and its Application in Radon Transforms; #90171 (2013) Juefu Wang and Mark Ng Greedy Least-Squares and its Application...

Abstracts: Implicit Preconditioning for Least-squares Nonstationary Phase Shift; #90173 (2015)

Marcus R. Wilson and Robert J. Ferguson

Search and Discovery.com

...Abstracts: Implicit Preconditioning for Least-squares Nonstationary Phase Shift; #90173 (2015) Marcus R. Wilson and Robert J. Ferguson AAPG Search...

Abstract: Using Fuzzy Logic to Predict Petrophysical Parameters and Improve the Accuracy of Least Squares Regression Analysis; #90211 (2015)

Joaquin Aristimuno, Milagrosa Aldana, and Anna Atencio

Search and Discovery.com

...Abstract: Using Fuzzy Logic to Predict Petrophysical Parameters and Improve the Accuracy of Least Squares Regression Analysis; #90211 (2015) Joaquin...

Multi-dimensional inverse scattering series internal multiple model construction via orthogonal contribution summation

Frederico Xavier de Melo, Zhiming James Wu

International Meeting for Applied Geoscience and Energy (IMAGE)

...o imaging) by a combination of least-squares filters and adaptive-masking operators computed in the complex curvelet space. Post-stack migrated images before ...

AAPG Memoir 76, Chapter 16: Pore Pressure ahead of the Bit: An Integrated Approach

Nader C. Dutta, William H. Borland, W. Scott Leaney, Richard Meehan, and W. Les Nutt

AAPG Special Volumes

..., the hazard depth is predicted to be at 2707 m (using a least-squares extrapolation). As drilling progresses, more time to depth information becomes...

Quantitative Analysis of a Cyclic Peritidal Carbonate Sequence, the Middle and Upper Devonian Lost Burro Formation, Death Valley, California--A Possible Record of Milankovitch Climatic Cycles

Wan Yang , Fraka Harmsen , Michelle A. Kominz

Journal of Sedimentary Research (SEPM)

... in the jth cycle (thickness,ij): Tcy =i=1n ·thicknessij j = 1, 2, ..., m (1) Positive least-squares regression was used by Kominz et al. (1991...

Deep water OBN multiple prediction from local reflectivity in the Stolt domain

Cesar Ricardez

International Meeting for Applied Geoscience and Energy (IMAGE)

... multiples in deep water OBN surveys, followed by simultaneous least squares adaptive subtraction. Another category of techniques, known...

Abstract: Seismic Data Decomposition into Spectral Components Using Regularized Nonstationary Autoregression; #90187 (2014)

Sergey Fomel

Search and Discovery.com

... is to estimate coefficients an, n = 1,2,…,N such that the prediction error N e(x) = d(x) - å an bn (x) (1) n=1 is minimized in the least-squares sense...

Latest imaging advancements in Suriname shallow waters

Jing Yang, Zhihua Sun, Zhihua Su, Bei Hu, Nicolas Chazalnoel

International Meeting for Applied Geoscience and Energy (IMAGE)

... to improve the shallow image by obtaining additional illumination from multiples through their modeling and iterative least-squares data fitting...

Basin Evaluation Using Burial History Calculations: an Overview

T. M. Guidish , C. G. St. C. Kendall , I. Lerche , D. J. Toth , R. F. Yarzab

AAPG Bulletin

... least-squares techniques. An alternate phenomenological model of porosity versus depth has been proposed by Falvey and Middleton (1981...

Land surface-related multiple attenuation based on wave-equation deconvolution

Gordon Poole, Brandon Li, Mattia Miorali, Keith Mills, John Tickle

International Meeting for Applied Geoscience and Energy (IMAGE)

... attenuation for land data using least- squares multiple imaging: PESGB PETEX Conference, Extended Abstracts. Pica, A., G. Poulain, B. David, M. Magesan...

Understanding The Mesozoics Beyond Basalt: A Case Study Of Sub-Basalt Imaging

S. Sengupta, S. K. Goswami, G. Menzel-Jones, B. Chowdhury, Artem Sazykin

Indonesian Petroleum Association

... on the local traveltime differences (Jiao et al. 2015; Vigh et al. 2016) to overcome the limitations of conventional least-squares FWI using a simple initial...

Joint Impedance Inversion Transforms Aid Interpretation, by Satinder Chopra, Ritesh Kumar Sharma, Mohammad Hossein Nemati, and Peter Cary; #41667 (2015).

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Assessment of a Marcellus Shale Prospect Using Seismic, Microseismic, and Completions Data

Scott Singleton, Mark Suda

GCAGS Transactions

... then is to determine the weight values. This is most commonly done using a least-squares approach. Non-linear methods do not assume...

ABSTRACT: Building and Testing Mineral Models for Mineral-Based Formation Evaluation, by A. B. Carpenter; #91021 (2010)

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Gravity Analysis of West-Central Calcasieu Parish, Louisiana: ABSTRACT

Forrest Wilson, James A. Noel

AAPG Bulletin

.... With the Bouguer values, these points served as input to least squares and model analysis systems. The least squares trend surfaces were calculated...

Characterization of natural fracture systems: Analysis of uncertainty effects in linear scanline results

Rafael F. V. C. Santos, Tiago S. Miranda, José A. Barbosa, Igor F. Gomes, Gabriel C. Matos, Julia F. W. Gale, Virginio H. L. M. Neumann, and Leonardo J. N. Guimarães

AAPG Bulletin

... deposits from Araripe Basin, NE Brazil: Boletim de Geociências da Petrobras, v. 20, no. 1–2, p. 305–326.Moritz, H., 1972, Advanced least-squares methods...

Robust multichannel prestack AVA inversion based on elastic L1/2 norm

Nanying Lan

International Meeting for Applied Geoscience and Energy (IMAGE)

... to solve a Tikhonov regularized least squares problem, which tends to produce an oversmooth solution. This solution can fuzz sharp formation boundaries...

The Shape-Assist Technique: Incorporating Stream Channel Interpretations into Computer-Generated Surface Models: Clark County, Kansas: Chapter 3

John F. Fierstien, Arthur V. Brewster

AAPG Special Volumes

... using a least-squares algorithm. We call this resulting surface our form grid (Figure 3). Note: our digitized contour lines actually bifurcate as our...

Broadband Least-Squares Wave-Equation Migration

Shaoping Lu, Andrew Long, Alejandro Valenciano, Nizar Chemingui

Petroleum Exploration Society of Australia (PESA)

...Broadband Least-Squares Wave-Equation Migration Shaoping Lu, Andrew Long, Alejandro Valenciano, Nizar Chemingui Broadband Least-Squares Wave-Equation...

Predicting S-wave sonic logs using machine learning with conventional logs for the Delaware Basin, Texas

Jaewook Lee, Yangkang Chen, Robin Dommisse, Alexandros Savvaidis, Guo-chin Dino Huang

International Meeting for Applied Geoscience and Energy (IMAGE)

... Wide (1 layer) 9.58 0.75 Kernel Support Vector 12.64 0.56 Machines Kernel Least Squares Kernel 11.92 0.61 hypocentral depth estimation...

Application of Both Physics-Based and Data-Driven Techniques for Real-Time Screen-Out Prediction with High Frequency Data

Jianlei John Sun, Arvind Battula, Brandon Hruby, Paymon Hossaini

Unconventional Resources Technology Conference (URTEC)

... after the maximum surface pressure. Then, step 2 applied a piecewise linear least squares fit library (Jekel and Venter 2019) with three line segments...

A Simple Autocorrelation Algorithm for Determining Grain Size from Digital Images of Sediment: RESEARCH METHODS PAPERS

David M. Rubin

Journal of Sedimentary Research (SEPM)

..., C.L. AND HANSON, B.J., 1974, Solving Least Squares Problems: Englewood Cliffs, New Jersey, Prentice-Hall, 340 p. MCCAVE, I.N., AND SYVITSKI, J.M.P....