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The AAPG/Datapages Combined Publications Database

Showing 1,706 Results. Searched 200,357 documents.

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Results of a Preliminary Test Investigation on the Applicability of Passive Seismic Tomography in VC Block - Assam, India; #41070 (2012)

Rohit Sinha, Nikos Martakis, Akis Tselentis, and Paris Paraskevopoulos

Search and Discovery.com

... model for P-wave velocity and Vp/Vs is the one presented in Table 1. The above-mentioned 1D velocity model is the one that minimizes the total RMS...

2012

Prestack Investigation of Shallow Surface-Sourced Seismic Data in Central-Northern Louisiana

D. Cimadomo, G. Kinsland, R. Zhang

GCAGS Transactions

... analysis (IVA) window. Within this window, root mean square (rms) velocity is picked every 20 CMPs. It is important to pick the correct velocity peaks...

2021

Providing In-Depth Knowledge

Halfdan Carstens

GEO ExPro Magazine

... offshore Norway shows a regional velocity cube intersecting a Base Cretaceous time map. The horizontal velocity slice is at 6,000ms. Two vertical...

2009

Abstract: Optimum Aperture Length for Improving Dispersion Curve Analysis in CMP Cross-Correlation of Surface Waves; #90187 (2014)

Roohollah Askari, Robert J. Ferguson, and Helen Isaac

Search and Discovery.com

... velocity model for static corrections with high lateral resolution. To this end, we have enlarged upon the idea of CMP Cross-Correlation of Surface...

2014

Abstract: RALPH Observations of shoreface sedimentation processes at Martinique Beach

Don Forbes, D. E. Heffler, Ron Boyd

Atlantic Geology

...-dominated envi- by r.m.s. wave heights up to 1.2 metres ronment that follows the well-defined and maximum current velocities of 65-80 cycle of summer sediment...

1984

Abstract: Locating Events Using Borehole Microseismic Monitoring by Inclusion of Particle Motion Analysis: a case study from Indonesia; #90255 (2017)

Rexha Verdhora Ry, Sri Widiyantoro, Andri Dian Nugraha

Search and Discovery.com

... vertical array of sensors in a borehole, providing measures of arrival times and polarizations. Microseismic events are located using 1-D velocity models...

2017

Abstract: The Occurrence and Distribution of Gas Hydrate Controlled by Mixed and Superposed Gas Sources in the Pearl River Mouth Basin, South China Sea;

Min He, Yuanping Li, Jie Li

Search and Discovery.com

... on the high-resolution velocity analysis, which dramatically increased the accuracy in detecting thin gas hydratebearing layers. Rock physical models...

Unknown

Predicting horizons for salt body models using machine learning from neighboring seismic surveys: A case study from the northern Gulf of Mexico

Andrew Reisdorf, Dan Ferdinand Fernandez, Hugo Enrique Munoz Cuenca, Ryan King, David Manzano, Gavin Menzel-Jones

International Meeting for Applied Geoscience and Energy (IMAGE)

.... This approach uses interpretations and seismic volumes from a neighboring survey with a similar geologic setting and comparable sediment and salt velocity...

2022

Abstract: Shallow VSP Survey using a Small Vibrator Source; #90171 (2013)

Joe Wong, Soo K. Miong, Robert R. Stewart, Eric V. Gallant, and Kevin W. Hall

Search and Discovery.com

... for a singlelayered earth, but it can be adapted to a multilayered earth simply by substituting the RMS stacking velocity vrms in place of the constant...

2013

Full Waveform Inversion on Bekapai Field: A Game-Changer Technology for Our Seismic Imaging Workflows

Magali Beele, Clement Fleury, Claudio Strobbia, Muhammad-Thurisina Choliq, Jacques Bonnafe, Gilles Vallon

Indonesian Petroleum Association

... clouds, causes several imaging challenges. Large lateral velocity variations, absorption, shadowing zone and push down effects, are hurdles difficult...

2014

Azimuthal Variations in Reflection Seismic Data: Measurements Governed by the In-Situ Horizontal Stress Field and/or Vertical Aligned Fractures

Heloise B. Lynn, Walter S. Lynn

West Texas Geological Society

... magnitudes. Note: we use the definition of anisotropy as Total Variation / Fastest (or Largest) Measurement. RMS velocity (1-4%) Interval velocity (1-20...

2006

Facies and Stratigraphic Controls on Velocity Anomalies in The North Madura Platform, Offshore East Java Basin

Fithra Harris Darmawan, Shakila Bt Mustaffa, Aditya Kusuma Wijaya, M Nauvall Juliansyah, Geovani Kaeng

Indonesian Petroleum Association

... shots and seismic stacking root mean square (RMS) velocity to control velocity variations away from well control. A calibration factor was calculated...

2019

ABSTRACT: Lankahuasa Prospect: Open Door to Deeper-Water Exploration in Offshore Veracruz Area; #90007 (2002)

Rosa Adriana Anguiano-Rojas

Search and Discovery.com

..., at processing stage we made a velocity picking to try to observe possible velocity change in the zone where we expected gas. In the bottom horizon...

Unknown

Structure Interpretation Problems of a Lower Miocene Reef Associated with a Shallow Low Velocity Anomaly, North Sumatra

Peter Walker, Masrizal Maas, Michael D. Burnaman

Indonesian Petroleum Association

.... An estimation of R.M.S. velocity implied that the reflections from top and bottom reef could cross over on the outer most traces. However...

1986

Pre-Stack Calibration to Well Data: Intercept & Gradient Scaling … A Case Study From the Norwegian North Sea

Nguyen Nam, Larry Fink

Indonesian Petroleum Association

... the seismic wavelet, are not discussed in this paper. The causes for AVO scaling problems, such as multiples, incorrect velocity, residual NMO...

2007

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)

... maps. The spatial amplitude patterns observed in the RMS maps were interpreted to be related to: (i) a channel of low velocity Cenozoic sedimentary...

2019

Anisotropic Pre-Stack Depth Migration in the Cusiana and Cupiagua Sur Fields

J. Checa, M. Mesa, N. Burke, J. Calderon, H. Alfonso, U. Egozi, B. Ver West, M. Yates

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... Formation at the main Field. The first version of the velocity model was obtained from the RMS velocities, converted to interval velocities using...

2006

Seismic Foldout: Norwegian North Sea: Identifying details of Lower Cretaceous sand fairways on the Måløy Slope

Irina Pene, Silje Rogne, Jaswinder Mann-Kalil, Marit Stokke Bauck, CGG

GEO ExPro Magazine

... of low velocity can be seen throughout the Agat interval, especially at the Duva Field. EXPLOR ATION OPPORTUNITIES Imaging uplift overcomes...

2024

Water column corrections: Joint water velocity inversion for 4D marine surveys

Didier Lecerf, Mathieu Lange, Andrew Oates, Jyoti Kumar

International Meeting for Applied Geoscience and Energy (IMAGE)

... velocity variation estimation. With typical 4D acquisition designs and water depth around 1000 m, we can reasonably expect to estimate a rms water sound...

2022

3-D AVO Analysis and Modeling Applied to Fracture Detection in Coalbed Methane Reservoirs

Antonio C.B. Ramos, T.L. Davis

Rocky Mountain Association of Geologists

... the 3-D volume confirms model predictions. Areas of large AVO intercepts indicate low velocity coals, possibly related to zones of stress relief. Areas...

1997

Multi-survey full-waveform inversion gradient balancing with illumination probing method

James Xu, David F. Halliday, Federico G. Andreasi, Xikai Zhao, James Rickett

International Meeting for Applied Geoscience and Energy (IMAGE)

...-survey gradient balancing workflow by simulating synthetic data using the starting velocity model and true source-receiver pairs extracted from...

2024

Abstract: Imaging Oblique Reflectors with Prestack Migration; #90174 (2014)

John C. Bancroft, Thais Guirigay, and Helen Isaac

Search and Discovery.com

... be focused during the migration process by raising the migration velocity Vmig, by dividing the RMS velocity VRMS, by the cosine of the obliquity angle...

2014

Multi-attributes and Seismic Interpretation of Offshore Exploratory Block in Bahrain„A Case Study, #41919 (2016).

Suresh Thampi, Aqeel Ahmed, Yahya Al-Ansari, Ali Shehab, Ahmed Fateh, Anindya Ghosh, Ghada Almoulani

Search and Discovery.com

... to seismic tie. Figure 5. Adopted workflow for depth conversion. Figure 6. Results of each stage of the Velocity Model building workflow. Figure 7a. RMS...

2016

Abstract: Seismic Processing of Ocean Bottom Cable and Streamer Data over Seligi Field

Lye Yue Choong, Abdul Razak Mohd Nurin

Geological Society of Malaysia (GSM)

... to velocities. A velocity error of 2% or more will produce scalloped reflections on the crosslines. Considerable time and effort was spent...

1999

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