The generation of equivalent sources by 3D skeletonization of the migration density field

James Brewster

International Meeting for Applied Geoscience and Energy (IMAGE)

... using wavelets: Geophysics, 75, no. 3, L51–L59, doi: https://doi.org/10 .1190/1.3378764. Sanchez, V., D. Sinex, Y. Li, M. Nabighian, D. Wright, and D...

Controls on fluid flow in the distal deepwater, offshore Niger Delta

Erieshibe Ashong, Jonathan Redfern, Mads Huuse

International Meeting for Applied Geoscience and Energy (IMAGE)

... seismograms were derived from sonic and density logs, which were then tied to seismic data wavelets to properly match events in time (two way travel time...

Least-squares reverse time migration of seismic source coding based on Shearlet transform

Yingkaer Nabi, Xiangbo Gong, Zhuo Xu

International Meeting for Applied Geoscience and Energy (IMAGE)

...: https://doi.org/10.1137/060649781. Guo, K., D. Labate, W. Q. Lim, G. Weiss, and E. Wilson, 2006, Wavelets with composite dilations and their MRA...

Seismic Modeling

Abilene Geological Society

... for different wavelets. Figure 1. Edwards Porosity Development Figure 2. Edwards Porosity Development Figure 3. Edwards Porosity Development Figure 4...

Estimating Smectite Content from Seismic Data

Roman Beloborodov, Marina Pervukhina, Valeriya Shulakova, Dimitri Chagalov, Matthew Josh, Michael B. Clennell, Gavin Ward, Matthew Waugh, Juerg Hauser

Australian Petroleum Production & Exploration Association (APPEA) Journal

... physics properties of interest and elastic anisotropy. Estimate seismic wavelets from the well ties. Perform AVO inversion using linear approximation...

Seismic sparse time-frequency representation via GAN-based unsupervised learning

Youbo Lei, Yang Yang, Naihao Liu, Shengtao Wei, Jinghuai Gao, Xiudi Jiang

International Meeting for Applied Geoscience and Energy (IMAGE)

... first downsample the Marmousi reflectivity model into the size of 512x512. Then, we adopt the Ricker wavelets with different dominant frequencies...

Orthorhombic AVAZ inversion in the Laplace-Fourier domain

Lin Li, Jinmiao Zhang, Guangzhi Zhang, Zhenyu Zhu, Jiajia Zhang, Chao Li, Xinpeng Pan

International Meeting for Applied Geoscience and Energy (IMAGE)

...) derivative matrix, the T denotes the transpose of a matrix. symbol The convolution of the reflection coefficients R with the wavelets can be formulated...

An optimal aperture crosscorrelation imaging condition for Marchenko imaging

Xiaochun Chen, Yezheng Hu, Yukai Wo, Weiping Cao, Xuri Huang

International Meeting for Applied Geoscience and Energy (IMAGE)

... in Figure 3, and display them as wiggles (see Figure 4). It can be observed that the traces obtained with a larger aperture have their wavelets...

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)

... the minimum usable frequency for FWI to 5 Hz. Minimum phase wavelets are obtained from data spectrum and used during FWI. We use a finite-difference...

Wave-equation based seismic AVO inversion: A pragmatic approach to use the full elastic wave-field for exploration and production

Peter Haffinger, Dries Gisolf, Panos Doulgeris, Hansel Gonzalez

International Meeting for Applied Geoscience and Energy (IMAGE)

...) . The general workflow of AVO inversion is conceptually depicted in Figure 1. Input to the scheme are seismic wavelets, a low-frequency model and migrated...

Seismic noise attenuation via learned and analytical basis functions

Yi Guo, Rongzhi Lin, Mauricio D. Sacchi

International Meeting for Applied Geoscience and Energy (IMAGE)

... be any conventional transform, like a local Fourier basis, wavelets, or curvelets. Because the global basis is trained from the filtered data, it cannot...

Basin-to-Prospect-Scale Subsurface Characterisation: New Insights into the Exmouth Sub-Basin, North West Shelf, Australia

Abdul Kholiq, Claire Jacob, Bee Jik Lim, Oliver Schenk, Anubrati Mukherjee, Alex Karvelas

Australian Petroleum Production & Exploration Association (APPEA) Journal

... wavelets were addressed. The inversion results were crosschecked against all wells within the SCS area, including blind well QC to ensure reliability. Fig...

Reservoir Modelling and Amplitude Analysis, South Lho Sukon, N. Aceh

J. C. den Boer, R. O. Ugland, W. Soeria Atmaja

Indonesian Petroleum Association

.... The model calculations refer to a single interface reflection coefficient, while the field data amplitudes relate to composite wavelets...

Temporal Resolution of Depositional Processes in the Gulf Coast Tertiary

John A. Lopez

Houston Geological Society Bulletin

.... S., and L. C. Wood, 1984, Limits of resolution of zero-phase wavelets: Geophysics, v. 47, p. 1035-1046. Maill, A. D., 1984, Principal of Sedimentary Basin...

Using deep learning for automatic detection and segmentation of carbonate microtextures

Claire Birnie, Viswasanthi Chandra

International Meeting for Applied Geoscience and Energy (IMAGE)

..., Line edge detection and characterization in SEM images using wavelets: IEEE Transactions on Semiconductor Manufacturing, 22, 180–187, doi: https...

Equivalent reflection coefficient and AVO characteristics of the thin bed

Zhengyang Kuai, Danping Cao, Chao Jin

International Meeting for Applied Geoscience and Energy (IMAGE)

... ps  rss Rss ), p 23 23 23 23 23 23 R pp  e p rpp e p , R ps  e p rps es , Rsp  es rsp e p , 23 23 Rss  es rss es , e p  ei q h , es  e i q...

Seismic response analysis of thin coals

Yijun Xi, Xingyao Yin

International Meeting for Applied Geoscience and Energy (IMAGE)

... Where, G is the convolution operator formed by the timeshifted wavelets arranged in columns, and m is the reflectivity matrix. Amplitude...

Impact of an Integrated Seismic Data Processing Approach: A Case Study in Central Sumatra

Mars E. Semaan, Eddy Murhantoro, Maryanto, Achmad Bermawi, Budi Subianto, Hari Santoso

Indonesian Petroleum Association

... earlier. The seismic traces on the right are a set of 7 identical seismic traces at the well locations, with the extracted wavelets at the bottom...

3D Seismic Reprocessing for Geophysical Analysis of Sea Bottom, Seabed Mapping and Geo-Hazard Clarification

Francesco Paone, Andrea Marceglia, Juan Carlos Coral

Indonesian Petroleum Association

... are directly responsible for the loss of resolution in seismic events, whereas a broad bandwidth delivers wavelets with much reduced side-lobes, i.e., of higher...

Synthetic-data-driven deep learning method for elastic parameter inversion

Shuai Sun, Luanxiao Zhao, Huaizhen Chen, Zhiliang He, Jianhua Geng

International Meeting for Applied Geoscience and Energy (IMAGE)

... coefficient sequences; Finally, the Zoeppritz equation and the convolutional model is adopted to synthesize the AVO gather sets. The wavelets used...

Improved carbonate reservoir characterization using formation density derived from prestack simultaneous inversion: A case study in West Kuwait

Rajesh Rajagopal, Alanood Al Otaibi, Mohamed Hafez A. Jaseem, Taiwen Chen, Bahrouh Bader Faisal

International Meeting for Applied Geoscience and Energy (IMAGE)

... EI logs, a wavelet is estimated for each seismic data set. These wavelets match the phase, amplitude and frequency content of their respective offset...

Fracture Characterization Based on Attenuation Estimation From Seismic Reflection Data Using Well-Log-Based Localized Spectral Correction

Fangyu Li, Tao Zhao, Tengfei Lin, Kurt J. Marfurt

Unconventional Resources Technology Conference (URTEC)

... caused by fracture system and unconventional reservoirs. Reflected wavelets can be distorted by the thin beds, which makes it more difficult...

A deep learning-based inverse Hessian for full-waveform inversion

Mustafa Alfarhan, Matteo Ravasi, Tariq Alkhalifah

International Meeting for Applied Geoscience and Energy (IMAGE)

... that the FWI gradient and the remigrated image are ’convolved‘ by one and two wavelets, respectively. Thus, the remigrated image might have the same...

Facies Architecture and Depositional Relationship of Batu Raja Carbonates in Letang, Rawa, and Tengah Field, Corridor Block, South Sumatra

Vicki Amir, Rita Achdiat, Maria Meirita, Joel Guttormsen

Indonesian Petroleum Association

... thickness of the BRF carbonate is within the range of 30-120 ms contained within 1-2 wavelets of seismic amplitude (see Figure 3 & 4). The average...

Multichannel seismic deconvolution via 2D K-SVD and convolutional sparse coding

Guiqian Zhang, Xiayu Gao, Bangli Zou, Yaojun Wang, Yingzhu Chen

International Meeting for Applied Geoscience and Energy (IMAGE)

... deconvolution aims to improve the resolution of seismic data by compressing the filtering effect of wavelets (Robinson, 1967). However, the existence...