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Showing 2,339 Results. Searched 201,044 documents.
Offshore Somalia: The Chase Is On!
Karyna Rodriguez, Neil Hodgson, David Eastwell, Abdulkadir Abiikar Hussein, MOPMR, Spectrum
GEO ExPro Magazine
... shale sources typically exhibit a low-frequency, low internal reflectivity character. Interpretation was then further constrained by criteria...
2019
Seismic inversion with dictionary learning using unsupervised machine learning
Debajeet Barman, Mrinal K. Sen
International Meeting for Applied Geoscience and Energy (IMAGE)
... reflectivity inversion: Journal of Geophysics and Engineering, 12, 70–79, doi: https://doi.org/10.1088/1742-2132/12/1/70. Sen, M. K., and R. Biswas...
2022
Extrapolation of Reservoir Lithology Away from Wells Using Seismic-Geologic Controls
Ruben D. Martinez, Geoffrey Mansfield
Indonesian Petroleum Association
... well location using another inversion technique. This models the seismic trace as event reflectivity convolved with the wavelet plus a noise term...
1991
What Are You Interpreting? Your Seismic Image Could Be Misleading You!
R. T. Newrick, E. P. Gomez, J. K. Pullishy, S. D. Jensen, J. M. de Armas
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... velocities estimated from well logs. The initial depth migration improved reflectivity in the near surface so an additional layer was added to the model...
2006
Rock physics-based characterization of tertiary hydrocarbon migration: Seismic de-risking of false positive DHIs related to residual gas
Mario A. Gutierrez
International Meeting for Applied Geoscience and Energy (IMAGE)
... – this means that impedance and seismic reflectivity decreases linearly with increasing gas saturation, making it possible to separate false positive...
2022
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
..., or reflectivity, is the acoustic impedance, defined as the product of P-wave velocity and rock density. Spatial variations in the acoustic impedance mimic...
1992
Norway: The North Sea Super Basin Story Continues
Marit Stokke Bauck, Jaswinder Mann-Kalil, Idar A. Kjørlag, Anna Rumyantseva, Thomas Latter, CGG
GEO ExPro Magazine
... should significantly improve seismic imaging of the Cenozoic sands. The Next Phase data. This increases the ability to sample spatial reflectivity...
2020
Integrated Thin Basal Sand Characterization in the Aryani Field, Asri Basin Southeast Sumatra, Using Geological Modelling Based on the Elastic Properties and the Rock Typing Method
Junrial Chaerul Huzaen, Wahyu Seno Aji, Heri Gunawan, Gustriyansyah Mishar, Julius Sunarta, Pranowo Nugroho
Indonesian Petroleum Association
... properties, such as an AVO analysis and the Lame parameter, Lambda– Rho (LR), and Mu–Rho (MR), is necessary. The P-reflectivity (Rp) and S-reflectivity (Rs...
2013
Joint 4D full-waveform inversion using enhanced template-matching objective function
Gaurav Dutta, Emmanuel Saragoussi, Xin Cheng, Markos Sourial, Yongbo Zhai, Chirag Parekh, Denes Vigh
International Meeting for Applied Geoscience and Energy (IMAGE)
... models and FWI-derived pseudo-reflectivity images (FDRs) to obtain interpretable images of the subsurface. However, FWI is not often used to directly...
2023
Improving reservoir imaging using long-offset OBN data: A case study from Conger field, Gulf of Mexico
Bin Deng, Han Su, Bharat Bonala, Jiawei Mei, Jennifer Lewis, Estefania Ortiz, Wisley Martins
International Meeting for Applied Geoscience and Energy (IMAGE)
..., there is an overpressured shale geobody, while to the east of the Conger salt, there are uncertain geobodies of low reflectivity. Given the overburden complexities...
2023
Broadband data with a new low frequency source Acquisition and processing example from the Gulf-of-Mexico
Xuefeng Shang, Maksym Kryvohuz, Hamish Macintyre, Guido Baeten, Thibaut Allemand, Philippe Herrmann, Stephane Laroche, Shuki Ronen
International Meeting for Applied Geoscience and Energy (IMAGE)
... leakage into 𝐸𝐵𝑁(𝜔). Once the Erratic Blending Noise removed from the pseudo deblended reflectivity, we have 𝐵 𝐻 (𝜔)𝐶(𝜔) − 𝐸𝐵𝑁(𝜔) = [𝑊1...
2023
Basin-Scale Rock Physics Study and Stochastic AVO Modelling for the Deep Water Kutei Basin (East Kalimantan Indonesia)
Gabriela Carrasquero, Alessandro Amato del Monte, Fabio Luoni, Paolo Battini, Gilbert Del Molino, Fabri Ikhlas Gumulya, Dedy Sulistiyo Purnomo, Nasif Khifni
Indonesian Petroleum Association
... (Castagna et al., 1997) the reflectivity at zero offset (Intercept) and the slope of the best-fit line of reflectivity variation with offset (Gradient; see...
2014
Time Lapse Feasibility Seismic Study of Gas Carbonates Reservoir in Tetra Field, Indonesia
Helmi Indrajaya, Boris Gurevich, Maxim Lebedev, Sigit Sukmono
Indonesian Petroleum Association
... to zero-offset reflectivity (the intercept) but only minor changes to the AVO gradient.The change in seismic response is caused mainly by the density...
2014
Seismic Anisotropy Modelling and Fluid Substitution for Carbon Dioxide (Co2) Well Storage Project In Carbonate Reservoir
Pebrian Tunggal Prakosa, Thariq Guntoro, Ahmat Dafit Hasim, Okok Wijaya, Yulia Putri Wulandari
Indonesian Petroleum Association
... on the equation, we can obtain the value of the third reflectivity and the reflectivity of the three obtained Rpp. The steps of this study are as follows: 1. 2. 3...
2014
Geological Society of Malaysia Newsletter Number 1 (July 1966)
GSM Editor
Geological Society of Malaysia (GSM)
... of Malaya is conducting research in the techniques of reflectivity measurements of ore minerals. The use of refleotivity, and micro-indentation hardness...
1966
Application of land multiple numerical simulation identification and well-driven suppression technology in ultra-deep layers of S Basin
Zhang Shurui, Zang Dianguang, Li Guangpeng, Diao Yongbo, Du Jiajun, Liu Shumin
International Meeting for Applied Geoscience and Energy (IMAGE)
.... The frequency domain reflectivity method is the most effective method to realize the full wave field simulation in layered media(Zhao et al.,2010,Yang,2016...
2024
Diffusion regularization for multi-parameter near-surface elastic full-waveform inversion
Mohammad Hasyim Taufik, Fu Wang, Tariq Alkhalifah
International Meeting for Applied Geoscience and Energy (IMAGE)
... and corresponding reflectivity, which is often disregarded in the commonly used acoustic FWI. However, EFWI usually requires a more sophisticated recording...
2024
Moho structure of Australia from probabilistic inversion of teleseismic P-wave coda autocorrelation
Mehdi Tork Qashqai, Erdinc Saygin
Petroleum Exploration Society of Australia (PESA)
...), 339-354, doi:10.1007/s11222-006-9438-0. Kennett, B. L. N. (2015), Lithosphere-asthenosphere P-wave reflectivity across Australia, Earth and Planetary...
2019
Using Seismic Inversion to Predict Geomechanical Well Behavior: A Case Study From the Permian Basin
Simon S. Payne, Jerry Meyer
Unconventional Resources Technology Conference (URTEC)
... flow units was defined only by the seismic reflectivity and not biased by any interpolation assumptions. Second, the inversion approach was calibrated...
2017
Assessing mineral composition and permeability of a shale seal
Roman Beloborodov, Marina Pervukhina, Maxim Lebedev, Juerg Hauser
Petroleum Exploration Society of Australia (PESA)
... inversion is performed on three partial angle stacks using linearised Zoeppritz equations (Rüger 1997), where the P-wave reflectivity is expressed through...
2019
Seismic image resolution enhancement with limited-well datasets using deep learning
Son Phan, Haibin Di, Wenyi Hu, Aria Abubakar
International Meeting for Applied Geoscience and Energy (IMAGE)
... to the seismic reflectivity derived from the well log data. In the second stage, the trained network is applied to many traces extracted from...
2024
Central Kalimantan Weight Drop Seismic Acquisition and Implication to Petroleum Exploration
Riki Tasrianto
Indonesian Petroleum Association
.... In addition, the seismic character definition of the high reflectivity packages and flooding events are clearer and more consistent in the weight drop...
2016
Statistical imaging through strongly scattering near-surface with path summation techniques
Andrey Bakulin, Ilya Silvestrov, Maxim Protasov, Dmitry Neklyudov
International Meeting for Applied Geoscience and Energy (IMAGE)
... calculated based on the true model described in (a). The ideal image is derived by convolving the model's reflectivity with the source impulse, as depicted...
2024
Gas Hydrates Exploration Using Continuous Wavelet Transform Based on Spectral Decomposition
Hafidz Dezulfakar, Muhazzib, Yulia Nur Fajrina
Indonesian Petroleum Association
... and followed by reflectivity reduction in the seismic section data. The amplitude blanking was predicted that hydrates causes a decrease in reflectivity...
2016
Bi-directional LSTM-based non-causal deconvolution
G. Roncoroni, I. Deiana, E. Forte, M. Pipan
International Meeting for Applied Geoscience and Energy (IMAGE)
...) and is a critical step in seismic data processing. Its ultimate goal is to recover the reflectivity sequence from the recorded seismic data by eliminating the source...
2024