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The AAPG/Datapages Combined Publications Database
Showing 1,680 Results. Searched 200,357 documents.
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...
2022
Elastic FWI application to a land data set in the Middle East
Anna Sedova, Olivier Leblanc, Thibaut Allemand, Gilles Lambar, Stphane Pellerin, Daniela Donno
International Meeting for Applied Geoscience and Energy (IMAGE)
... and elastic FWI from 2 to 12 Hz. An Optimal Transport FWI objective function (Messud et al., 2021) is used for the initial low frequencies, and a least...
2022
Unlocking subsurface complexity: Sparse ocean-bottom node and full-waveform inversion for northern Green Canyon, Gulf of Mexico
Kate Glaccum, Denes Vigh, Yao Yu, Eray Kocel, Bing Bai, Di Chen, Hongyan Li, Kevin Lyons
International Meeting for Applied Geoscience and Energy (IMAGE)
... in the migrated output. We can consider FWI as a type of non-linear least-squares process for this effect. Second International Meeting for Applied...
2022
Can tile low-rank compression live up to expectations? An application to 3D multidimensional deconvolution
Yuxi Hong, Matteo Ravasi, Hatem Ltaief, David Keyes
International Meeting for Applied Geoscience and Energy (IMAGE)
... Marchenko imaging by least-squares inversion: Geophysics, 86, no. 5, WC177–WC194, doi: https://doi.org/10.1190/ geo2020-0796.1. Ravasi, M., I. Vasconcelos...
2023
Uncertainty quantification of anisotropic elastic constants and mud speed using borehole sonic data
Ting Lei, Kristoffer Walker, Adam Donald, Alexei Bolshakov, Lin Liang, Romain Prioul, Edgar Ignacio Velez Arteaga
International Meeting for Applied Geoscience and Energy (IMAGE)
..., involving many trial inversions at each depth. The Monte-Carlo process utilized the constrained sequential least squares (SLSQP) algorithm (Kraft, 1988...
2023
Enhanced Wellbore Placement Accuracy Using Geomagnetic In-Field Referencing and Multi-Station Correction
Stefan Maus, Matthew Herzl, Shawn DeVerse
Unconventional Resources Technology Conference (URTEC)
... errors are determined over multiple surveys, the method of least squares can be used to estimate the bias and scale error of each sensor. Once...
2015
Production Forecasting in Shale Volatile Oil Reservoirs Using Reservoir Simulation, Empirical and Analytical Methods
Ibukun Makinde, W. John Lee
Unconventional Resources Technology Conference (URTEC)
...e. they are based on the least squares best fit of data going through the origin. This modified form of the Duong model may however have limitations with sho...
2016
Correlation between PMT and SPT results for Kenny Hill Formation
Mohd Faiz Mohammad Zaki, Mohd Ashraf Mohamad Ismail, Darvintharen Govindasamy, Mohd Hazreek Zainalabidin
Geological Society of Malaysia (GSM)
... combination with 95% confidence level produce R2 = 0.642. Regression analysis was carried out the least squares that fit given data and R-square was computed...
2019
First arrival enhancement by statics preserving filtering using surface-consistent constraints
Alejandro Quiaro, Mauricio D. Sacchi
International Meeting for Applied Geoscience and Energy (IMAGE)
... [' is found solving the following damped least squares problem done by maximizing sparsity in that domain and using the result as reference data. Noisy...
2023
Elastic FWI for joint Vp, Vs and density inversion
Peng Shen, Uwe Albertin, Hermes Malcotti, Josh Haataja
International Meeting for Applied Geoscience and Energy (IMAGE)
... of the amplitudes and phases in the data to produce an elastic signature in the FWI residual, such as a least-squares residual, which occurs if the elastic model...
2024
Extracting Meaningful Estimates of Rock Properties from 3-D Anisotropic Velocity Models Derived from Borehole Microseismic
Scott Taylor, Jeremy King, Ben Schaeffer, Todd Hibbitts, Lucas McGreaham, Khaled Ghuneim
Unconventional Resources Technology Conference (URTEC)
...-optimal map of microseismic events. Accurate effective velocity modeling is also essential for travel time computation, used for a least squares...
2016
An integrated approach to subsurface uncertainty and risk analysis from offshore Trinidad
Raihaan Ali, Randy Partap, Sarika Ramnarine, Tariq Karamath, Daisy Ramsaran
International Meeting for Applied Geoscience and Energy (IMAGE)
... inversion. FWI is also a least-squares fitting process thus contributes supplementary structural information for more balanced illumination (Zhang et...
2024
From well logs to 3D models: A case study of automated stratigraphic correlation in the Midland Basin
Keyla Gonzalez, Zoltan Sylvester, Alejandro Valenciano, Ben Lasscock
International Meeting for Applied Geoscience and Energy (IMAGE)
... is left unconnected from the graph, it is removed from the analysis. Using least-squares optimization, ChronoLog creates a consistent set of pairwise depth...
2024
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...
2024
The economic environment and the growth in reserves from known gas fields in the Gulf of Mexico
Kevin F. Forbes, Ernest M. Zampelli
CSPG Bulletin
... OGIFF data. Based on the restricted least squares estimate of a function in which AGFs are assumed to decline monotonically with the age of the field...
2012
A Technology to Extract Lithology, Porosity and Hydrocarbon Content from Conventional Seismic Data
Roger A. Young
GCAGS Transactions
... is ambiguous. stack (P) are derived with a least squares line fit to the trace amplitudes versus incident angle at each time sample (after Shuey): A(q...
1999
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...
2002
Using Pressure Pulses to Understand Subsurface Connectivity: A Midland Basin Multi-Company Case Study
Stefan Hussenoeder, Bill Curry, Hilary Chang, Shelly Dutta, Navaneeth Babu
Unconventional Resources Technology Conference (URTEC)
... series. The scaling factor was determined using matching pursuit to minimize the residual after the subtraction in a least squares sense. Other scaling...
2025
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...
2002
Capturing the Reservoir Uncertainty through Probabilistic Dynamic Modelling and Prediction: A Case Study of Multi-Layered Waterflood Reservoir with 90 Years Production History and 293 Wells
Ecko Noviyanto, Deded Abdul Rohman, Theoza Nopranda, Rudini Simanjorang, Kosdar Gideon Haro
Indonesian Petroleum Association
... Convention Proceedings, 2021 Flow Dynamics (RFD) and the constant support from RFD engineers in Indonesia and Moscow. Lloyd S. P. 1982. Least Squares...
2021
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...
2018
Tectonic Motion in Western USA From Satellite Laser Ranging: Chapter 23: Part IV. Satellite Geodesy
D. C. Christodoulidis , D. E. Smith, S. M. Klosko , J. W. Robbins , P. J. Dunn , M. H. Torrence
AAPG Special Volumes
... motion system. A new methodology has been implemented which has permitted a free least-squares adjustment for the vector motions of the sites...
1991
Abstract: Robust Rank-Reduction Filters for Erratic Noise; #90174 (2014)
Stewart Trickett, Lynn Burroughs, and Andrew Milton
Search and Discovery.com
...). This is optimal in that, given an n-by-n matrix A and a rank k, it generates the rank-k matrix R that minimizes Thus the truncated SVD is a least-squares solution...
2014
Abstracts: Interpolation of Nonstationary Seismic Records using a Fast Generalized Fourier Transform; #90173 (2015)
Mostafa Naghizadeh and Kristopher A. Innanen
Search and Discovery.com
.... The nonredundant nature of FGFT renders a big computational advantage to this interpolation method. A least-squares fitting scheme is used next to retrieve...
2015
The Tectonic Stress Field in Eastern Australia
S. Zhao, R. D. Müller
Petroleum Exploration Society of Australia (PESA)
... the squared residuals between the observed and modelled stress orientations reach a minimum, in a least squares sense. The final estimates of the tectonic...
2001