Seismic super resolution method for enhancing stratigraphic interpretation

Chengbo Li, Qingrong Zhu, Baishali Roy

International Meeting for Applied Geoscience and Energy (IMAGE)

... reflection coefficients and (relative) acoustic impedance. 𝒁𝒊 = 𝒁 𝟎 The inversion problem is apparently under-determined in a least squares sense...

Introduction to Contouring Geological Data with a Computer: Part 8. Integrated Computer Methods

J. L. Gevirtz

AAPG Special Volumes

... that are taken in groups of three and fitted exactly to a plane using a least squares or bicubic spline methods. The grid node estimate is obtained by averaging...

An Interpretation of the Golden Grove Gravity High in Southern New Brunswick

V. K. Gupta, K. B. S. Burke

Atlantic Geology

... gravity high, defined in a least squares sense as has a coincident aeromagnetic high (Geological N Survey of Canada, 1960). f(X) (1) = N z (9 m=l...

Low-frequency data reconstruction for full-waveform inversion

Ramzi Djebbi, Maiza Bekara, Jaime Ramos-Martinez, Nizar Chemingui

International Meeting for Applied Geoscience and Energy (IMAGE)

.... Introduction Full waveform inversion (FWI) aims to recover a highresolution velocity model using least-squares minimization of the difference between field...

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 ...

Delineation of CBM Reservoir Using Sparse Layer Inversion: Tanjung II CBM Field Case Study

Sunarli Ardi, Hanif Widya Nugraha, Shabrina Paramitha, Dian Larasati, Gathuk Widiyanto, Dinda Larasati Rahmani, Alfian Usman

Indonesian Petroleum Association

... and odd pair. Inversion solution through BPI is using a basisconstrained least squares equation. BPI method itself has a balance between sparseness...

Abstract: How much well do you need in Acoustic Impedance Inversion?; #90174 (2014)

Heather J. E. Lloyd and Gary F. Margrave

Search and Discovery.com

... a single log containing well data from the surface to a depth of 2300 m. For the velocity log least squares linear gradient was applied...

The Application of a New Variable Pressure Decline-Curve Analysis Technique to Unconventional Reservoirs in Argentina

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

Unconventional Resources Technology Conference (URTEC)

... in terms of volume per unit pressure). ; , , = ( ; )+ − ( − − ; ). (1) The least-squares regression of the cumulative production is given by Eq...

Normalized energy-norm imaging condition for elastic reverse-time migration

Can Oren, Jeffrey Shragge

International Meeting for Applied Geoscience and Energy (IMAGE)

... energy available at the interface to generate a dimensionless image. Applying a least-squares ERTM framework (Feng and Schuster, 2017), though...

A power-law fault model for Bayesian network geosteering in complex geology

Hugh Winkler

International Meeting for Applied Geoscience and Energy (IMAGE)

... of proportionality. Such a distribution is a poor fit for inversion approaches, like least-squares, that minimize the difference between a predicted well...

Velocity estimation via model order reduction

Alexander V. Mamonov, Liliana Borcea, Josselin Garnier, Jrn Zimmerling

International Meeting for Applied Geoscience and Energy (IMAGE)

... for efficient velocity estimation. While the conventional FWI via nonlinear least-squares data fitting is challenging without low frequency information...

Full-waveform inversion and FWI imaging for land data

James Sheng, Cristina Reta-Tang, Faqi Liu, Alfredo Vzquez Cant, Alejandro Cabrales Vargas

International Meeting for Applied Geoscience and Energy (IMAGE)

... has better defined events and faults (indicated with red arrows) due to the iterative least-squares data fitting, which enhances illumination...

Pengimejan lempung samudera dengan survei geoelektrik dan seismos: Kajian kes di Banting, Selangor (IN MALAY), Geoelectric and seismic survey of alluvium structures: a case study in Banting, Selangor

Umar Hamzah, Abdul Rahim Samsudin, Mohd Shahid Ayub, Lai Kian Voon, Rahman Yaacup, Lakam Mejus

Geological Society of Malaysia (GSM)

... kepada sejumlah blok dan dengan menggunakan skema kesongsangan kuasadua-terkecil (least-squares) akan mengira keberintangan yang sesuai bagi setiap blok...

The need of elastic RTM for elastic FWI models

Hui Huang, Zedong Wu, Xue Xiao, Zhigang Zhang, Ping Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

... signal-to-noise ratio (S/N) naturally, as a result of many iterations of least-squares fitting of the full wavefield data from low to high frequencies...

AusAEM Year 1: Some aspects of quality control and calibration

Ross C. Brodie, Yusen Ley-Cooper, Ray Lockwood, David Murray

Petroleum Exploration Society of Australia (PESA)

...) profile form. We developed an iterative gradient-based least-squares regularised inversion algorithm to solve for these two calibration parameters...

Circum-Arctic Petroleum Systems Defined Using Biomarkers, Isotopes, and Chemometrics, #30146 (2011)

Kenneth Peters, Scott L. Ramos, John Zumberge

Search and Discovery.com

... to the giant Prudhoe Bay Field. Alternating least squares of concentration data (ALS-C) for Copyright © AAPG. Serial rights given by author. For all other...

Rapid Estimations of Dynamic Hydraulic Fracture Fronts from Cross-Well Low-Frequency Distributed Acoustic Sensing Strain-Rate Measurements

Smith Leggett, Erich Kerr, Ding Zhu, Dan Hill

Unconventional Resources Technology Conference (URTEC)

...-algorithm-for-nonlinear-least-squares-problems. Fletcher, R. 1971. Modified Marquardt Subroutine for Non-Linear Least Squares., AERE-R-6799, Atomic...

High-resolution seismic data processing method based on deep convolutional dictionary learning

Xiayu Gao, Qingyu Feng, Yaojun Wang, Bangli Zou, Yang Luo

International Meeting for Applied Geoscience and Energy (IMAGE)

... , D 2 ,   X D  ,  X D  is the regularization parameter for Eq.(7). The data terms (7a) and (7c) have least squares solutions. For the prior...

Identifying and Quantifying Significant Uncertainties in Basin Modeling

Paul J. Hicks Jr., Carmen M. Fraticelli, Jennifer D. Shosa, Martine J. Hardy, Michael B. Townsley

AAPG Special Volumes

... to the calibration data using a weighting parameter related to the fit to each calibration point. Fit in this case is based on a least squares analysis...

NMR Wettability Index Measurements on Unconventional Samples

Michael Dick, Dragan Veselinovic, Derrick Green, Aimee Scheffer-Villarreal, Ronald Bonnie, Shaina Kelly, Kathleen Bower

Unconventional Resources Technology Conference (URTEC)

... are then mixed to give a predicted T2 spectrum which is compared (via a least-squares fit) to a T2 spectrum recorded from a sample partially saturated...

Testing Hydrocarbon Saturation Models For Use in Original Oil-in-Place Estimation: South Dome of Oregon Basin Field, Park County, Wyoming: Chapter 9

Michael J. Heymans, Douglas A. Steed, David E. Hamilton, Barbara A. Pavlov

AAPG Special Volumes

... decreases. A least-squares fit line drawn through data points on a plot of the logarithm of absolute permeability versus porosity is a common tool...

The Age of Illite Cement Growth, Village Fields Area, Southern North Sea: Evidence from K-Ar Ages and 18O/16O Ratios

A. G. Robinson , M. L. Coleman , J. G. Gluyas

AAPG Bulletin

... 14 shows the data for Ravenspurn North, Cleeton, and Hyde field illites plotted on such a isochron diagram. The best-fit, unweighted, least squares...

Near-Wellbore Fracture Diagnosis via Strain Decoupling from Integrated In-Well LF-DAS and DTS Data

Jiayi Song, Weibo Sui, Jiwen Li

Unconventional Resources Technology Conference (URTEC)

... outlier factor algorithm and linear least squares regression method. Accounting for the differences in temporal and spatial resolution between LF-DAS...

CSPG/CSEG/CWLS Convention 2006; - Abstracts, #90211 (2015).

Search and Discovery.com

Seismic Processing Applications on a Personal Computer

Geophysical Service (Malaysia) Sdn. Bhd.

Geological Society of Malaysia (GSM)

... times for receivers at the same depth, and obtaining the slope of a least squares fitted line we can directly arrive at the ratio of P to S wave...