New Integrated Workflows for Improved Pore Pressure Prediction and Seismic Imaging, #41705 (2015).

Marek Kacewicz, Sankar Muhuri, Weihong Fei

Search and Discovery.com

... examples of the HV hybrid model building: 1. When the measure of gather flatness for common image gathers satisfies a predefined error level, the region...

Abstract: Applicability of TTI RTM to Structured Land Datasets; #90172 (2014)

Charles Ursenbach, Yan Yan

Search and Discovery.com

... of topography, anisotropy, and multipathing. Kirchhoff prestack depth migration delivers on the first two of these requirements, but can fail to image...

Dim Spots and Non-Bright AVO Associated with Gas in the South Ardjuna Basin, Offshore North West Java, Indonesia

David A. Fisher, Leonardus Suffendy

Indonesian Petroleum Association

...-stack gathers in the KK/KKN Field show that pre-stack techniques can be applied successfully to these reservoirs. Pre-stack amplitude interpretation...

Estimation of anisotropic parameters from semblance picking using dynamic programming

Hong Liang, Houzhu (James) Zhang, Dongliang Zhang, Hongwei Liu, Xu Ji

International Meeting for Applied Geoscience and Energy (IMAGE)

... on the dynamic programming, we build an automatic workflow to estimate the anisotropic parameters 𝑉 and 𝜂 from CMP gathers. Compared...

3-D Tomographic Amplitude Inversion for Compensating Transmission Losses in the Overburden

Barry Hung, Kefeng Xin, Sergey Birdus, James Sun

Indonesian Petroleum Association

...* ABSTRACT A tomographic inversion approach using prestack depth migrated common image gathers is utilized to compensate reflection data for amplitude...

Aiding self-supervised coherent noise suppression by the introduction of signal segmentation using blind-spot networks

Sixiu Liu, Claire Birnie, Tariq Alkhalifah, Andrey Bakulin

International Meeting for Applied Geoscience and Energy (IMAGE)

... correlated noise within seismic shot gathers. Recent work by Prakash et al. (2020) illustrated how the the inclusion of N2V can improve a 3-class...

ABSTRACT: TUTORIAL: IMAGING THROUGH SHALLOW GAS, DIVING WAVE

Brian Broussard, Luis Canales, Charles Carvill, Lee Lu, Juan Perdomo, Chung-Chi Shih, Sherman Yang, Peter Melville, Mehmet Tanis

Geological Society of Trinidad & Tobago

... new technology to improve the seismic image quality of streamer data. Our project team found that poor quality imaging over this area is substantially...

Retrieving Amplitude Absorption From Gas Cloud Effect In Deep Water Play, Gulf Of Mottama, Offshore Myanmar

Search and Discovery.com

3D-9C seismic survey for direct S-wave processing and interpretation

Rui Zhang, Zhiwen Deng, Yuanyuan Yue, Yan Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

... to obtain the direct Swave seismic image by using a S-wave source, which is believed to be little affected by the gas clouds and produce clearer...

A Nigerian Renaissance: Renewed interest in Africa's largest oil producer

John Balch, Matt Lamont, Polarcus, DownUnder GeoSolutions

GEO ExPro Magazine

... depth migration trial (PSDM) performed for Polarcus by DownUnder GeoSolutions delivers a significant uplift in image quality, which will facilitate...

Application of VTI PSDM for imaging carbonate structures

Seyed Yaser Moussavi Alashloo, Deva Ghosh, Yasir Bashir, Amir Babasafari

Geological Society of Malaysia (GSM)

... Kirchhoff migration to obtain the image of the subsurface. A real dataset, from Sarawak Basin is used to test the algorithm. Finally, we analyze...

Next-generation resolution through multiparameter FWI imaging

Tom Rayment, James McLeman, Karen Dancer, Tim Burgess

International Meeting for Applied Geoscience and Energy (IMAGE)

... Kirchhoff preSDM stack. The impact of the improved velocity model on conventional imaging is demonstrated in Figure 2. Kirchhoff preSDM image gathers, which...

Abstracts: True-Amplitude PS Prestack Time Migration via 5D Interpolation; #90173 (2015)

Peter W. Cary, Albert Zhang

Search and Discovery.com

... is an important step in multi-component seismic data processing not only for its ability to produce a better PS image, but also as a preparation of the data...

9C data acquisition for near-surface imaging in a quick-clay landslide-prone site in SW Sweden

Tatiana Pertuz, Alireza Malehmir

International Meeting for Applied Geoscience and Energy (IMAGE)

...-horizontal). We present a high-resolution image of the subsurface using this dataset and speculate on the presence of quick-clay deposits and extremely...

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)

... stack image with improved event continuity and flatter gathers with enhanced coherence. Introduction The geological structure of the Middle East...

Accelerated Kirchhoff depth migration on CPU-GPU heterogeneous computing systems

Yujin Liu, Hongwei Liu, Yi He, Fuhao Qin, Yue Du

International Meeting for Applied Geoscience and Energy (IMAGE)

... from the source location * to the image point #, and -$ is the time delay from the same image point # to the receiver location ). For a fixed source...

Probabilistic seismic interpolation with the implicit prior of a deep denoiser

Matteo Ravasi

International Meeting for Applied Geoscience and Energy (IMAGE)

... the available common-receiver gathers and amplitude normalized between 0 and 1. At each step of the training process, a batch of patches is corrupted...

Fullband imaging

Zhengmin Zhang, Jiwei Jia, Geping Fu, Hao Zhang, David Chow, Barry Hung, Ian Anstey, Wai Leong Lai

Petroleum Exploration Society of Australia (PESA)

... in general. By applying Q Tomography on the common image gathers (CIGs) in two separate steps to obtain Qa and Qb, we generated an inverse Qt (1/ Qt...

PLAYING WITH SEISMIC PROCESSING AS A PARAMETER DURING INVERSION

Henk Kombrink

GEO ExPro Magazine

..., through linking computing power, we could see how individual steps in the processing workflow affected the stacked reservoir image with just a few clicks...

Imaging Solutions for Geophysical Challenges in South East Asia (Paper A13)

N. El Kady, Z. Mohd Dom, Y. Prasetyo, M. Bayly, G. Nyein, P. Vasilyev, N. Mat Don Ya

Geological Society of Malaysia (GSM)

... confidence in the final image delivered to the interpreter and prospect generation group. This in turn, can lead to significant reduction...

Abstracts: Bringing Seismic Ideas to Acoustic Logging; #120181 (2015)

Partha Biswas & Shreya B. Ley

Search and Discovery.com

... image data mostly unusable. For shear wave anisotropy, fractures are simply inferred and, for many reasons, that inference cannot be relied...

Salt Geology and Hydrocarbon Plays in the Northeastern Gulf of Mexico, by Abu Chowdhury, #10215 (2009)

Search and Discovery.com

FWI imaging of complex subsalt Mesozoic targets from land to shallow waters

Timmy Dy, Minshen Wang, Sabaresan Mothi, Don Dobesh, Shengda Ding, Oscar Andrade, Pablo Ortega, Alfredo Vázquez Cantú, Silvino Domínguez García, Gerardo López Leyva

International Meeting for Applied Geoscience and Energy (IMAGE)

... merge of the different surveys. The results demonstrate how TLFWI can generate a much improved and seamless model and an FWI Image of the subsurface...

Deep compressed learning for 3D seismic inversion

Maayan Gelboim, Amir Adler, Yen Sun, Mauricio Araya-Polo

International Meeting for Applied Geoscience and Energy (IMAGE)

.... The shot-gathers data tensor d is element-wise multiplied with the sensing tensor Φ, which nulls most of the shots and effectively reduces the number...

Enhancing full-waveform inversion with a deep-learning approximated inverse Hessian: A field data application

Mustafa Alfarhan, Matteo Ravasi, Fuqiang Chen, Tariq Alkhalifah

International Meeting for Applied Geoscience and Energy (IMAGE)

... reflectors are observed in the deeper part of the model as indicated by the red arrows. Lastly, Angle Domain Common Image Gathers (ADCIG) computed at x = 6.0...