ELECTRONIC COMPUTERS AID IN EXPLORATION DECISIONS AND INTERPRETATIONS

E. J. Assiter

Asociación Venezolana de Geología, Minería y Petróleo (AVGMP)

... and migration data for application to maps * 12. Plot out depth maps and cross-sections using a velocity function, gradient or surface Quite obviously...

Abstract: Statistical Depth Imaging with Path Summation through Complex Near-Surface; #91204 (2023)

Ilya Silvestrov, Andrey Bakulin, Maxim Protasov

Search and Discovery.com

... of velocity distributions instead of using a single “best” one as in conventional algorithms. The ideas of path-integral seismic imaging were explored...

Earth crustal analysis of Northwest Sabah region inferred from receiver function method

Abdul Halim Abdul Latiff, Faridah Othman

Geological Society of Malaysia (GSM)

.../s respectively as it hits the Moho boundary at 40 km depth. Keywords: Receiver function, crustal thickness, velocity structure, Kota Kinabalu INTRODUCTION Sabah...

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

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

AAPG Special Volumes

.... One very important concept that needs to be understood is the sensitivity of seismic imaging to variations in overlying earth velocity, and why depth...

Velocity for Pore Pressure Prediction Modeling and Risk Assessment

Selim Simon Shaker

GCAGS Transactions

...). Red dashed trend represents the average FFP vs. depth. Predicting the pressure in this zone, using seismic velocity, is a challenging task...

Analytical Approach for Multivariate Exploration Planning via Secondary Migration Modelling

Amin Shokrollahi, Sara Borazjani, Syeda Sara Mobasher, Ulrike Schacht, Khalid Amrouch, Pavel Bedrikovetsky

Australian Petroleum Production & Exploration Association (APPEA) Journal

... currents. Using powerlaw functions to represent permeability variation, they achieved a self-similar solution for current propagation. In other...

Simultaneous inversion of velocity and angle-dependent reflectivity

Nizar Chemingui, Yang Yang, Jaime Ramos-Martinez, Guanghui Huang, Dan Whitmore, Sean Crawley, Elena Klochikhina, Sriram Arasanipalai

International Meeting for Applied Geoscience and Energy (IMAGE)

... directly generated and updated at each iteration using the updated velocity and reflectivity fields, without the need for additional migrations...

Three-Dimensional Depth Imaging of Seismic Data to Help Delineate Petroleum Reservoirs in the Williston Basin

Alvin K. Benson

Williston Basin Symposium

... by rapid lateral velocity changes, velocity pull-up, etc. and (b) the necessity of using a depth migration process versus time migration plus...

Abstract: DREAM™ - Drilling and Real Time Migration: A New Method for the Geophysical Monitoring of Wells

Luca Bertelli, Luca Savini, and Luca Aleotti

Houston Geological Society Bulletin

...-drilling information? Starting from a depth reference section obtained with an initial velocity field, the method allows the operator to continuously...

Implementation of the DIPSCAN Method to Estimate Boundary Dips in Complicated Structures by VSP Data

A. A. Tabakov, V.N.Ferentsi, H. Gravini

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... break hodograph and velocity model defined along the well with the specific dip for all layers of the model. Then back propagation seismic problem...

Incorporation of Geology, Wells, Rock Physics into Anisotropy Estimation for Seismic Depth Imaging Enables True Earth ModelŽ, #40862 (2012)

Huyen Bui, Peck Hwa David Ng, Jenny Zhou, Chih-Wen Kue, Martiris Smith

Search and Discovery.com

... to incorporate geology, well, and rock physics in anisotropy estimation for seismic depth imaging. As we all know, that the seismic velocity is an important...

Seismic Velocity Variations in San Joaquin Valley, California

Walter S. Olson

AAPG Bulletin

..., and the linear increase of interval velocity with depth. Both equations may be fitted to data by using least squares. These equations give the simplest...

Crustal Velocity and Sediment Thickness Asymmetries along and between the Conjugate Australian-Antarctic Margins

Joanne M. Whittaker, Alexey Goncharov, Simon E. Williams, R. Dietmar Müller

Petroleum Exploration Society of Australia (PESA)

... and sonobuoy observations. As a result, we obtain velocity-depth functions from sonobuoy/refraction velocity solutions within the areas of the thickest sediments...

An Interpreter's Guide to Improvements in Depth Imaging through Model-Based Velocity Estimation and Refinement

Andy Furniss

Petroleum Exploration Society of Australia (PESA)

... to depth using an average velocity map or a series of interval velocity maps. This process is adequate in areas of low dip without lateral...

RhoVe T Method Empirical Velocity-Density-Temperature-Effective Stress Transform

Matt Czerniak

GCAGS Transactions

... Figure 1: v-z), to density-“virtual” depth (rho-z) on-the-fly using the a-term active curve and end-members (v-rho) as a series of velocity-density...

Simultaneous Joint Inversion of Seismic and Gravity Data for Long Offset Pre-Stack Depth Migration in Northern Oman, #41569 (2015).

D. Colombo, M. Mantovani, M. De Stefano, D. Garrad, Hussain Al Lawati

Search and Discovery.com

... depth. The portion of the velocity model deeper than 4 km was therefore finalized using seismic data alone. The obtained depth image (Figure 2...

PP-PS depth-domain AVA inversion

Maud Cavalca, Robin P. Fletcher

International Meeting for Applied Geoscience and Energy (IMAGE)

... inversion, using point spread functions. We extend the approach of Fletcher et al. (2012) and estimate earth model properties through a joint PP-PS depth...

Where Is My Horizontal Well? Use of Borehole Seismic Where Velocities Vary Laterally

Agus Muharam, Frank Musgrove

Indonesian Petroleum Association

... the depth of the well bore below the top reservoir (delta D) and the velocity of the overburden (by the method outline in Figure 6, calculations Table 1...

Extending the Resolution of Seismic Reflection Exploration

L. R. Denham

Pacific Section of AAPG

... roll by velocity filtering is used. Realistic values for frequency, depth and dip of reflections will usually give a minimum number of groups around 100...

Geological evaluation of suprasalt carbon storage opportunities in the Silverpit Basin, United Kingdom Southern North Sea

A. D. Hollinsworth, I. de Jonge-Anderson, J. R. Underhill, and R. J. Jamieson

AAPG Bulletin

... and their depth conversion using a seven-layer velocity model provides the basis for a new theoretical CO2 storage capacity model that incorporates volumetric...

Abstract: Critical Review, Calibration, and Ranking of Popular Velocity-Based Pressure Prediction Models, by Mario A. Gutierrez, Neil Braunsdorf, and Brent Couzens; #90039 (2005)

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Geoscience Integration and Interpretive Model Building to Overcome Seismic Imaging Problems in Foothills Environments; #41547 (2015)

Rob Vestrum

Search and Discovery.com

... to depth for comparison. (b) Anisotropic depth migration using simple structural velocity model. (c) Anisotropic depth migration using revised...

Quantitative seismic interpretations to detect biogenic gas accumulations: a case study from Qaidam Basin, China

Yexin Liu, Zhuoheng Chen, Liqun Wang, Yongshu Zhang, Zhiqiang Liu, Yanhua Shuai

CSPG Bulletin

...-Point methods. We chose the Elastic Impedance equation to generate objective functions to infer compressional velocity, shear velocity and density from...

Hidden Structure Revealed by a Simple 3D Velocity Model - McAllen Ranch Field, Hidalgo County, Texas

Richard C. Bain

GCAGS Transactions

...% faster than the overlying or underlying units. The top and base of the high-velocity unit were correlated over a wide area using 3D seismic and well...

Abstract: Unraveling Complex Velocity Anomalies -A Case Study in Bahrah Area, Kuwait, by Anjaneyulu Singavarapu, Abdul malik Salah abdulla, Manowar A.M. Ahmed, Sanjeev S Thakur, Hanan Al-Owihan, and Ramarao Busi venkata; #90105 (2010)

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