De-risking Appraisal Phase in the Recent Gas Discovery in Banggai-Sula Basin, Central Sulawesi: Application of AVO Analysis and Pre-stack Inversion in the Sub-ophiolite Reef Carbonate Play

Mufied Ahmad, Yudi Herdiana, Tika R. Pertiwi, Hendarsyah, Arie Naskawan

Indonesian Petroleum Association

... are excellent. Based on the core sample description and borehole image data, Wol-002 comprises packstone to rudstone in the upper part with isolated...

Seismic Foldout: The Most Advanced Datasets Offshore Barbados and T&T

Jeniffer Masi, Jeroen Hoogeveen, Nick Tanushev, John Walker, Alexander Mihai Popovici, Geoex MCG, Z-Terra

GEO ExPro Magazine

... iterations were conducted using Kirchhoff pre-stack depth migration (PSDM). Kirchhoff Migration and common image gathers: (a) produced using...

Abstract: Seismic Imaging near and within the Basement Offshore Malaysia; Including Comparisons of Imaging Algorithms (Geophysics Paper 19)

Nabil El Kady, M. Shah Sulaiman, Zabidi M Dom, Tang Wai Hoong, Lee Mei Lu, Pavel Vasilyev, Martin Bayly

Geological Society of Malaysia (GSM)

.... The position of this event was certainly not geologically plausible. Upon inspection of the Common Image Point (CIP) gathers, this data was observed...

A smart merge workflow for dual-azimuth images

Xu Li, Diwi Snyder, Dez Chu, Inmaculada Dura-Gomez

International Meeting for Applied Geoscience and Energy (IMAGE)

... correction on common image gathers (CIG) before stack, to reduce residual model errors. In this paper, dual azimuth images are used for flow...

A method for assessing earth model uncertainty in the Taranaki Basin, New Zealand

Edward Lewis, Dennis van der Burg, Tony Martin, Lorenzo Russo, Tony Bell

Petroleum Exploration Society of Australia (PESA)

... and determine a quantitative measure of the volumetric model error based upon the move-out error in the common image gathers. A threshold is determined based...

3D seismic modelling fast adaptability in the face of operational constraints „ A case study

Clemence Cuvilliez, Aline Robin, Veronique Duprat, Camille Le Magoarou, Bruno Pagliccia, Severin Rubio, Enrico Zamboni

International Meeting for Applied Geoscience and Energy (IMAGE)

... Image Gathers showing 1. the additional illumination of the “MONEX” layouts (red & green dashed rectangles) & linked to a larger shooting carpet...

Reflection waveform inversion assisted by full-wavefield imaging

Mikhail Davydenko, Eric Verschuur

International Meeting for Applied Geoscience and Energy (IMAGE)

... tomography example. (a) Subsurface offset gathers for the image shown in Figure 2d at x=400, (b) Subsurface offset gathers for the image shown in Figure...

Abstract: To TTI or not to TTI? Semi-Automated 3D Tomographic Velocity Analysis in the Canadian Foothills: A Case History; #90211 (2015)

Sylvestre Charles, David Mitchell, Rob Holt, Jiwu Lin, and John Mathewson

Search and Discovery.com

... of residual moveout in prestack depth migrated common image point gathers: 69th SEG meeting. Wu, H., and J. Kees, 1999, Cartesian parameterization...

Improving the Convergence of Shot-Profile Migration by Plane Wave Synthesis

Chad M. Hogan

Search and Discovery.com

... stacking of input shot records. Plane-wave migration drastically reduces the amount of computation required to generate an interpretable seismic image. Here...

Improving the Convergence of Shot-Profile Migration by Plane Wave Synthesis

Chad M. Hogan

Search and Discovery.com

... stacking of input shot records. Plane-wave migration drastically reduces the amount of computation required to generate an interpretable seismic image. Here...

Abstract: Application of Target-oriented VVAZ on Relatively thin Fracture Reservoir; #90174 (2014)

Stephen K. Chiu, Jack Howell, Jason A Stein, Samik Sil, and Jeff Malloy

Search and Discovery.com

... orientations measured from image logs in areas with high anisotropy. Introduction Fracture characterization is a key factor in the optimization of a reservoir...

Multi-Component Seismic (3C) Data Acquisition … A Case Study from Oil India Ltd. Operational Area in Upper Assam Basin, #40728 (2011)

K. L. Mandal, A. K. Khanna, Dr. R. Dasgupta

Search and Discovery.com

...-component seismic survey in its fields for having superior subsurface image and improved reservoir model in terms of lithology, types of fluid present...

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Search and Discovery.com

Combining high resolution modelling and one-way wave field extrapolation migration to image beneath a complex overburden: A case study from Porcupine Basin, Ireland

Partha Pratim Mandal, Weidi Koh, Julien Bluteau, David Laws, Jennifer Greenhalgh

Petroleum Exploration Society of Australia (PESA)

... modelling; specifically the fast generation of dense 3D CIGs (common image point gathers), high signal to noise, the ability to reject coherent & non...

Seismic Processing Strategies in the Deep Water Kutai Basin … Gendalo Hub Pre-Stack Depth Migration

Xiuyuan Li, Harmit Singh, Joe Zhou, Graham Hodgkiss, Neil Young, Helmut Hsiao

Indonesian Petroleum Association

... of the key factors that determine the image quality in the pre-stack depth processing. With this objective in mind, a layer stripping model building...

Predicting Facies, Rock, and Geomechanical Properties Using Convolutional Neural Networks: A Case Study From an Unconventional Shale Reservoir

Ted Holden, Ruth Kurian, Mohammed Ibrahim, Daniel Hampson, Jonathan Downton

Unconventional Resources Technology Conference (URTEC)

... and associated seismic gathers. The resulting synthetic data are used to train the CNN algorithm. Density, P-wave and S-wave impedance are estimated...

Velocity Model Building Using Tilted Orthorhombic Depth Imaging for Full Azimuth Seismic Data

Yunfeng (Fred) Li, Qiaofeng Wu, Chuen-Song Chen

GCAGS Journal

... imaging generally provides flatter common image gathers (CIGs) for WAZ data, improves image focusing, and significantly reduces well/seismic misties...

Nonparametric Bayesian approach for robust depth uncertainty estimation from seismic velocity and anisotropy tradeoffs

Jinsong Chen, Sizhuang Deng, Min Yang, Andrey Shabelansky, Cory Hoelting, Huafeng Liu, Maisha Amaru

International Meeting for Applied Geoscience and Energy (IMAGE)

... and seismic gathers, the estimated depth uncertainties could be reduced significantly. The above method works well when subsurface structures are relatively...

Upside down Rayleigh-Marchenko imaging: an application to the Volve ocean-bottom cable data

Ning Wang, Matteo Ravasi

International Meeting for Applied Geoscience and Energy (IMAGE)

...0 Angle [°] Figure 4: Angle gathers for a) mirror migration method; b) UD-RM method. the image of the up-going wavefield, whilst it is almos...

Extracting High Fidelity Geological Information From 3D Seismic and Well Data

Marianne Rauch

Unconventional Resources Technology Conference (URTEC)

... Digital well log and 3D pre-stack seismic data are combined to improve reservoir characterization. 3D seismic pre-stack gathers contain significant...

Deciphering Seismic Amplitude Language; #41981 (2017)

Luis Vernengo, Eduardo Trinchero, Satinder Chopra

Search and Discovery.com

... under investigation, the seismic response can be forward-modeled. The elastic gathers so generated can help understand what kind of response to expect...

Confirming Reservoir Geometry and Exploration Opportunity through 5D Interpolation PSDM in The Sub-ophiolite Zone, Banggai Sula Basin, Central Sulawesi

Mufied Ahmad, Dadang Ramdan, Yudi Herdiana, Abdullah Nurhasan, Arif Budi Mulyawan

Indonesian Petroleum Association

..., a powerful yet time-consuming 5D Interpolation is employed. This step significantly improves image quality especially below the thrust. Since this project...

Integrated Workflow for Fracture Characterization ; From Well Bore Analysis, Post-Stack Geometrical Attributes and Pre-Stack Azimuthal Inversion; Case Study for Fractured Volcanic Reservoir Analysis in Jatibarang Field, North West Java Basin

Aji Rahmat Ginanjar, Andreas Wasi Kuncoro, Muhammad Taslim, Tri Sunarno Irianto, Arrie Kurniawan, Oddy Pranidhana

Indonesian Petroleum Association

... azimuthal inversion, we used 5D azimuth gathers generated through special angle domain imaging system for a wide range of reflection angles and a full...

True Amplitude Preserved Multi-Azimuth Pre-Stack Depth Migration for Structural and Reservoir Characterization (Sisi-Nubi Field, Indonesia)

M. Baturin, F. Bertini, J. Bonnafé, A. Riou, S. Birdus, Y. Yin

Indonesian Petroleum Association

... relative amplitudes in a “true” structural image. DATA - PROCESSING WORKFLOW Time-Processing The data-processing strategy included a full time...

Seismic imaging of the Turtle Mountain structure, southwestern Alberta, Canada

J.H. Isaac, D.C. Lawton, C.W. Langenberg

CSPG Bulletin

... (MVA) using common image gathers. The correct velocity is that which images a particular reflector at the same depth for every source-receiver offset...