Abstract: Point Receiver Acquisition and Processing for Arctic Near Surface Challenges; #90171 (2013)

C. Strobbia, A.Glushchenko, A. Laake, P.L.Vermeer, S. Papworth, and Y. Ji

Search and Discovery.com

... of the moraine, causing strongly laterally varying near surface Figure 1: Location of source and receiver line on a satellite image conditions. AAPG...

Abstract: Monte Carlo Statics: The Last Frontier; #90211 (2015)

David LeMeur and Sophie Merrer

Search and Discovery.com

... gathers to optimize the reflections on the final CMP stack (Vasudevan et al., 1991). Datapages/Search and Discovery Article #90211 CSPG© 2015 CSPG/CSEG...

Seismic-Based Volcano Identification and Characterization in HD Oilfield, Tarim Basin; #10747 (2015)

Yaonan Li, Guizhong Wang, Desheng Sun, Hongmei Zhang, Zhen Zou, Lin Yu, Sheng Cao

Search and Discovery.com

... deconvolution based on shot-receiver gathers. The major processing steps have been monitored using the geophysical and geological QC method during...

Envelope full-waveform inversion of marine seismic data

Kai Xiong, David Lumley, Wei Zhou

International Meeting for Applied Geoscience and Energy (IMAGE)

... model with IEI and a high-resolution velocity model with IEI+FWI using 24 Hz data. (a) (b) Figure 1. Shot gathers (8Hz) at sx=8 km. (a) Observed data...

Implications of elastic full-waveform inversion for northern Red Sea

Kate Glaccum, Denes Vigh, Kai Wang, Xiaoling Tan, Jennifer Qin, Vivian Robertson, Trevor Ferguson

International Meeting for Applied Geoscience and Energy (IMAGE)

... building to image below the region’s shallow subsurface which is comprised largely of evaporite sequences of varying thickness and lithological...

High resolution imaging using multiples „ A North Sea case study

Chandan Kumar, Rodney Johnston, Petr Jilek, Xiaolei Song, Mikhail Davydenko

International Meeting for Applied Geoscience and Energy (IMAGE)

... a very high-resolution shallow image and compare it with conventional processing and imaging. Historically, multiples have been treated as noise...

Deep learning velocity model building using an ensemble regression approach

Stuart Farris, Guillaume Barnier, Robert Clapp

International Meeting for Applied Geoscience and Energy (IMAGE)

...-limited, narrow azimuth streamer data. INTRODUCTION Creating an accurate image of the geologic layers beneath the earth’s surface is often the goal...

Impact of full-wavefield inversion (FWI) based high-resolution model building and Q imaging on exploration and development at Guyana Stabroek

Fuxian Song, Patrick Monigle, Jia Yan, Vikas Gudipati, Xu Li, Sunwoong Lee, Sam Hemmings-Sykes, Ashlika Persaud, James Pape, Lee E Gilchriest, Amir Abdi, Emily Lalli, Anupama Venkataraman, Ramesh Neelamani, Steve Knapp, Krista Solvason

International Meeting for Applied Geoscience and Energy (IMAGE)

... is illustrated in the image gather plot where FWI model provides a flatter and better amplitude-focused gathers particularly at ultrafar angles as seen...

Hybrid Velocity Model Building: 3D Ocean Bottom Cable (OBC) Orthorhombic Full Waveform Inversion (FWI) Depth Imaging of a Complex Geological Structure, Western Berau - Papua, Indonesia

Purbo Santoso, Yayat Supriatna, Tepy Septyana, Leo Tjahjadi, Yonghe Guo

Indonesian Petroleum Association

... building workflow has effectively built a high-resolution velocity model and improved the seismic image quality of the complex geological structure...

Normalized energy-norm imaging condition for elastic reverse-time migration

Can Oren, Jeffrey Shragge

International Meeting for Applied Geoscience and Energy (IMAGE)

...://doi.org/10.1190/geo2016-0424.1. Rosales, D. A., S. Fomel, B. L. Biondi, and P. C. Sava, 2008, Wave-equation angle-domain common-image gathers...

Tomographic waveform inversion (TWI) applied to real seismic data

Jlio Oliva Frigrio, Biondo Biondi

International Meeting for Applied Geoscience and Energy (IMAGE)

... multiplying factor to all samples of the TWI relies on the production of extended images of the type subsurface offset-domain common-image gathers (ODCIGs...

The Silver Lining on 3D Seismic Acquisition Challenges during the Pandemic Covid19: The Application of 5D Interpolation to Fill in Data Gaps

Pramuditya Dwi Permana, Agi Robby Rizaldi, Afrizon Setiawan, Hendarman

Indonesian Petroleum Association

... be corrected during seismic data processing to create an image of the subsurface to enable geological interpretation. The development of various...

Geomechanical Approach to Resolve Severe Velocity Variations and Remove Image Distortions below Rugose Seafloor (Paper A16)

S. Birdus, A. Artyomov, L. Li, S. Xin

Geological Society of Malaysia (GSM)

...Geomechanical Approach to Resolve Severe Velocity Variations and Remove Image Distortions below Rugose Seafloor (Paper A16) S. Birdus, A. Artyomov, L...

ABSTRACT: Imaging Through Gas Clouds: Case Histories from the Gulf of Mexico; #90007 (2002)

Knapp, Steve, Nigel Payne, Tony Johns

Search and Discovery.com

... numerous gas invaded zones and shallow gas anomalies that disturb the image on conventional 3D seismic, which only records compressional data. Converted...

TTI Wave-equation Migration of A 3-D Canadian Foothills Dataset

Search and Discovery.com

... image gathers for Kirchhoff migration, whereas this is possible but more costly for WEM. In this example the WEM result was directly imaged without any...

Nightmare Multiples — A Step Towards a Solution

George Yao, Bob Estill, Daniel Heinze, Hans Tieman, Yusri, Jim Waugaman

Indonesian Petroleum Association

... that was successful in dramatically improving the deep image for frequencies up to 13 hertz in the most multiple-ridden field, Ranggas. The processing sequence...

Reservoir Characterisation Through Integrated AVO, AI and EI Inversion

Andy Furniss

Indonesian Petroleum Association

... must be applied to prestack time or depth migrated gathers such that each trace in an ensemble comes from a common-reflection-point (CRP...

Analysis of geologic structures using deep sonic imaging

Nobuyasu Hirabayashi, Leon Dahlhaus, Rajeev Kumar, Jeroen Jocker, Erik Wielemaker, Manish Lal Khaitan, Charles Naville

International Meeting for Applied Geoscience and Energy (IMAGE)

... migration image and borehole geometry in the vertical depth. Mirror reflectors are removed using f -k filters in the common-azimuth gathers. The 120m...

Re-imaging of 2D legacy data in Brazils Equatorial Margin via pseudo-3D model building

David Butler, Daryineth Fernandez, Oscar Perez, Raul Ysaccis, Jason Thekkekara, Juan Perdomo, Christopher McMorland, Aurora Rodriguez Castelan

International Meeting for Applied Geoscience and Energy (IMAGE)

...et is very challenging due to the inaccuracy of the seismic image, giving low confidence on stratigraphic correlation from the shelf to the deep wate...

Applications of Kirchhoff Least-Squares Migration: Towards Reservoir Imaging; #42183 (2018)

Francesco Perrone, Graham Roberts, Lorenzo Casasanta, Andrew Ratcliffe, Arash Jafargandomi, Karen Purcell

Search and Discovery.com

... ([email protected]) Abstract Seismic migration maps the acquired energy of the primary reflections into a structural image of the subsurface...

High-resolution imaging using Gaussian beam point-spread-function deconvolution

Jidong Yang, Jianping Huang, Hejun Zhu, George McMechan

International Meeting for Applied Geoscience and Energy (IMAGE)

... a generalized inverse for a subsurface reflectivity model, which can improve image resolution and reduce artifacts caused by incomplete acquisition...

A recipe for practical iterative LSRTM with synthetic and real data examples from Brazil

Valeriy Brytik, Gopal Palacharla, Rishi Bansal, Diwi Snyder, Xu Li, Young Ho Cha, Partha Routh, Inma Dura-Gomez, Dmitriy Pavlov, Carey Marcinkovich

International Meeting for Applied Geoscience and Energy (IMAGE)

... offset or angle gathers as a starting point for inversion. If image-domain LSRTM is followed by data-domain iterations, careful weighting of LSRTM...

The Application of PSDM VTI Method to Generate a Velocity Model That Can Solve the Mistacking Problem

Aulia Ahmad Nafis, Hasan Nurudin, Ikhsan Hanurogo, Bagus Sapto M, Ahmad Zaenudin

Indonesian Petroleum Association

... the seismic image before and after doing the method. And for the result, PSDM VTI method shows that the result of the velocity model is closer...

Differentiable dynamic time warping divergences in full-waveform inversion

Mahesh Kalita, Lorenzo Casasanta

International Meeting for Applied Geoscience and Energy (IMAGE)

.... This improvement is further supported by Figure 5, which displays a set of common image gathers calculated at an interval of 2 km to QC the updated models...

Automated machine learning first-break picking in the Sichuan Basin „ A case study

Jianfa Wu, Xuewen Shi, Qiyong Gou, Ersi Xu, Dongjun Zhang, Dingxue Wang, Phil Bilsby, Qing Zhou, Rong Li

International Meeting for Applied Geoscience and Energy (IMAGE)

... (Figure 1): 1.Data selection - select a sparse grid of gathers from across the survey that exhibit a wide range of data characteristics (Figure 1a...