Processing the first full azimuth OBN survey in Australia: a step change in imaging quality

Unnikrishnan Chambath, Vincent Ganivet, Sergey Birdus, Joe Zhou, Alain Delorme, Leigh Scoby-Smith, Ivan Gregory, Matt Kovacevic, Tim Williams, Chris Walton

Petroleum Exploration Society of Australia (PESA)

... the fault shadow issue The root cause of the fault shadow is the strong velocity variation across the faults. It creates a weak illumination thus low signal...

The Use of Time-Lapse Seismic Attributes for Characterizing Hydraulic Fractures in a Tight Siltstone Reservoir

N. Riazi, C.R. Clarkson

Unconventional Resources Technology Conference (URTEC)

... engineering inputs and seismic data can be quantified. In inversion, an attempt is made to recover the reflectivity by removing the wavelet effect...

Integrated Reservoir Characterization of Deep Kerogen-Rich Unconventional Resource Play in North Kuwait

Jonna D. Rao, Samar Al-Ashwak, Abdullah M. Al-Anzi, Musaed Y. Al-Dousiri, Narhari S. Rao, Qasem Dashti, Sandeep Chakravorty

Unconventional Resources Technology Conference (URTEC)

... reflectance overlain on coherency Vitrinite Reflectivity (Ro): The reflectance of the rich bitumen is considered as the vitrinite reflectivity due...

Abstract: Workflows for Sweet Spots Identification in Shale Plays Using Seismic Inversion and Well Logs; #90187 (2014)

Yexin Liu

Search and Discovery.com

...722 8) Rüger, A., 1998, Variation of P-wave reflectivity with offset and azimuth in anisotropic media: Geophysics, 63, 935– 947 9) Russell, B., Hampson, D....

Seismic Attenuation Analysis for Reservoir Description

Search and Discovery.com

... layers defined by acoustic impedances. The proposed technique is based on the idea that Q values can be calculated from the peak frequency variation...

Optimum Deconvolution for Seismic Inversion Purposes

M. Suprajitno, L. Nutt, P. Busono

Southeast Asia Petroleum Exploration Society (SEAPEX)

... produces reflectivity series from which the acoustic impedance computation starts. The technique has been proved to be flexible in that the minimum, mixed...

Enhancing Vertical Seismic Resolution with Seismic Frequency Restoration and Attributes; #42156 (2017)

Luis Vernengo, Eduardo Trinchero, Maximillian Garcia Torrejon, Ignacio Rovira

Search and Discovery.com

... supervised by the interpreters and calibrated with geological information. Any variation in the shape of the basic wavelet in the seismic data...

Joint Anisotropic Parameter Inversion Based on Nonhyperbolic Moveout and Azimuthal Amplitude Variance

Fangyu Li, Jie Qi, Bin Lyu, Kurt J. Marfurt

Unconventional Resources Technology Conference (URTEC)

...), 732-739. Rüger, A., 1998, Variation of P-wave reflectivity with offset and azimuth in anisotropic media: Geophysics, 63, 935–947. Rüger, A., 2002...

Facies-based inversion through integrating elastic full-waveform inversion and high-frequency imaging data

David Tang, Valeriy Brytik, Olivier Burtz, Young Ho Cha, Partha Routh, Ratnanabha Sain, Jay Barr, Dez Chu, Michael Gutierrez, Jeffrey Sitgreaves, Jacob Utley, Guy Medema, Alison Scribner

International Meeting for Applied Geoscience and Energy (IMAGE)

... angle stacks. In addition, the elastic moduli of the rocks themselves result in a subtle amplitude-versus-offset (AVO) effect, which is especially...

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

... the changes in reflectivity. A correctly processed seismic section is a map of the variation of the acoustic impedance, which can be a direct indicator...

ABSTRACT: GEOCHEMICAL EVIDENCE FOR TWO STAGES OF HYDROCARBON EMPLACEMENT AND THE ORIGIN OF SOLID BITUMEN IN THE GIANT TENGIZ FIELD, KAZAKHSTAN; #90024 (2004)

J. L. Warner, D. K. Baskin, R. J. Hwang, R. M. K. Carlson, M. E. Clark

Search and Discovery.com

... variation is within analytical error for bulk (API [-420], sulfur [0.5 wt.%, ] δ13C [-29‰ δ13C {PDB}], δ34S [+11 to +14‰], and compound class...

Anisotropic full-azimuth velocity model building using joint reflection-refraction tomography

Matan Shustak, Itai Sharabi, Orly Kletenik-Edelman, Elive Menyoli, Ike Imala, Ronit Levy, Zvi Koren

International Meeting for Applied Geoscience and Energy (IMAGE)

... zone, which extends to about 3000ft, is covered mainly by a fluvial conglomerate. The alternating geology introduces rapid lateral velocity variation...

Incorporating Artificial Intelligence into Traditional Exploration Workflows in the Cooper-Eromanga Basin, South Australia

H. M. Garcia, W. G. "Woody" Leel Jr., M. Riehle, P. Szafian

International Meeting for Applied Geoscience and Energy (IMAGE)

... to capture individual channels and their internal variation. The results from both workflows were combined to give a full picture of the potential reservoir...

High-resolution prestack seismic inversion of reservoir parameters using an arch network

Ting Chen, Yaojun Wang, Yuan Yuan, Gang Yu, Guangmin Hu

International Meeting for Applied Geoscience and Energy (IMAGE)

...., 2018). Chen et al. (2019) applied iterative deep neural networks (DNN) to inverse seismic wavelet and reflectivity. To make network more effective...

Base of the Crust: Seismological Expression, Geological Evolution, and Basin Controls: Chapter 4: Concepts

J. Hall

AAPG Special Volumes

..., and M. Warner, 1984, Moho beneath the North Sea compared on normal incidence and wide angle seismic records: Nature, v. 308, p. 55-56. Beach...

Shale Gas Sweet Spot Identification using Quantitative Seismic Interpretation (QSI) and Neural Network in Krishna-Godavari Basin, India

Soumen Deshmukh, Shrey Omer, P. S. Tomor, Harilal

Unconventional Resources Technology Conference (URTEC)

... and Richards equation (1994) was used to model the P-wave reflectivity as a function of the incident angle (Equation 2). R( )  (1  tan 2  ) 2 2...

Understanding the Spatial Geological Heterogeneity of the Delaware Basin from Pre-Stack Seismic Inversion

Simon Payne, Andrew Lewis, Ben Hardy, Venkatesh Anantharamu, Iestyn Russell-Hughes

Unconventional Resources Technology Conference (URTEC)

... stacks and validated using estimates of the seismic wavelets at the correct reflectivity angle range. The results of this process was a seismic...

A case study using FWI to image pre-Messinian target in the East Mediterranean Sea

Jyoti Kumar, Marcus Bell, Tamer Darwish, Mai Ahmed, Mahmoud Ahmed, Moataz Ahmed

International Meeting for Applied Geoscience and Energy (IMAGE)

... system closer to the Nile Delta's cone. The salt layer shows intra-salt reflectivity away from the diapiric area, indicating complex heterogeneities within...

Chapter 10-part 3: 3-D Depth Image Interpretation

William L. Abriel, Joseph P. Stefani, Robert D. Shank, David C. Bartel

AAPG Special Volumes

... not be mistaken for changes in reflection amplitude variation caused by changes in lithology, fluids or pressure. In addition to understanding...

Sedimentology and Petrophysical Character of Cretaceous Marine Shale Sequences in Foreland BasinsPotential Seismic Response Issues

W. R. Almon, Wm. C. Dawson, F. G. Ethridge, E. Rietsch, S. J. Sutton, B. Castelblanco-Torres

AAPG Special Volumes

... in the Lewis Shale. (B) This model is a synthetic seismic angle gather that shows the amplitude-vs.-angle (AVA) effect when all shale facies layers...

Advanced Imaging and Inversion for Oil Production Estimates in Unconventional Resource Plays

Greg M. Johnson, Paul Miller, David Phillips

Unconventional Resources Technology Conference (URTEC)

... orientations of the fast velocity. Simultaneous azimuthal amplitude variation with angle elastic inversion (AVOAZ) Preservation of amplitude...

Direct S-wave seismic data interpretation for channel sand reservoir at Sanhu area, West China

Rui Zhang, Zhiwen Deng, Yan Wang, Xiaoyu Xi, Xiusong Wang, Jie Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

.... The inversion of S2 data utilize amplitude-versus-angle (AVA) characters, assuming that the pre-stack S2 data is the convolution result of wavelet...

Combination of Seismic Velocity Gradient and Sonic Gradient Variation as a Hydrocarbon Indicator: A Case Study in Clastic Reservoirs in South Sumatra

Iswani Waryono, Wahyu Triyoso

Indonesian Petroleum Association

.... The latest analytical method developed for DHI identification is Velocity Variation with Offset (VVO) or Angle (VVA) to identify gas clastic reservoirs within...

Fracture reservoir prediction method based on AVO disturbance variance

Guangrui Xiao, Yao Li, Yuru Zhang, Dekui Xu

International Meeting for Applied Geoscience and Energy (IMAGE)

... dip angle fractures can be equivalent to HTI media. According to Thomson’s weak anisotropy theory, Ruger derives the approximate formula of the P-wave...

An Integrated Geophysical Analysis of Crustal Structure in the Wichita Uplift Region of Southern Oklahoma

Amanda Rondot Buckey

Oklahoma City Geological Society

...: Oklahoma Geological Survey Bulletin 95, 302p. Hamilton, L.S., 1989. Structure of the Wichita Uplift, southern Oklahoma, from a wide-angle seismic...