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The AAPG/Datapages Combined Publications Database

Showing 8,042 Results. Searched 195,364 documents.

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Abstract: Seismic Imaging of Imbricate Structures in Mountainous Area: Case Studies; #90211 (2015)

Nanxun Dai, Oz Yilmaz, Weizhong Wang, and Jie Zhang

Search and Discovery.com

... the rms velocities (Figure 2). These are the distance along the line traverse versus event time after migration for a given rms velocity --- the X-T plane...

2015

Time Depth Conversion of a Prospect With Near-Surface Velocity Anomalies Using Stacking Velocites and PSDM Velocities: A Comparison

Tan Boon Hua, Lothar Schulte

Indonesian Petroleum Association

... is the average velocities of the top 900m derived from the RMO stacking velocity field. The navigation of the seismic section shown in figure 1 is plotted...

2011

AAPG Memoir 76, Chapter 18: Velocity Estimation for Pore-Pressure Prediction

David W. Bell

AAPG Special Volumes

... approximate rms interval velocities rather than average interval velocities. The cause of the variation of stacking velocity, and hence the Dix...

2001

Seismic Characterization of the Navajo Reservoir, Buzzards Bench, Utah; #51503 (2018)

Kimberley Haar, Robert Balch, Robert Will

Search and Discovery.com

... velocity model because the model honored both the average velocities from the TDR and the interval velocity from the stacking velocities. A histogram...

2018

Uncertainty Analysis for Top Tuban Carbonate Prediction using Velocity Modeling Design in "Aquila" Field, East Java Basin

Ayu Indri Firdani, Azhar Kholiq Affandi, Erik Wahyu Irawan, Kamal, M. Wahdanadi Haidar, M. Freddy Yulisasongko

Indonesian Petroleum Association

... the horizon times to depth using adjusted seismic stacking velocities. The Aquila Field needed better velocity model designed to analyze...

2015

A Comparison of Depth-Conversion Methods in the Gulf of Mexico

Melvan D. Carter, Gary R. Hyatt

GCAGS Transactions

... the simplest constant-function approach to the "layer-cake" method to an average-velocity technique based upon seismic velocities, each method has...

1990

Abstract: Automatic High-Density Constrained Velocity Picking; #90211 (2015)

Emil Blias

Search and Discovery.com

..., when can we assume that stacking velocities are close to RMS? Dix’s formula gives a reasonable estimation of interval velocity when and only when...

2015

A Regional Velocity Cube for Depth Conversion on the Northwest Shelf

Maighréad Ní Dheasúna, Mark Ballesteros, James Leven

Petroleum Exploration Society of Australia (PESA)

.... Average velocity (L 7) versus RMS velocity (L2) for a stack of horizontal/ayers, each with a thickness of and a velocity of z, Figure 2 outlines t he...

2012

A New Approach to Time Depth Conversion and Depth Error Estimation for 2D Interpretation Using Seismic Velocities

Rosidah Hardiani, Sanisah Soed, Lothar Schulte

Indonesian Petroleum Association

... converted and adjusted to the well velocities to address velocity anisotropy. Then the interval and average velocity points were derived for both...

2013

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

Andy Furniss

Petroleum Exploration Society of Australia (PESA)

... velocity as input into Equation (1) assuming they approximate to RMS velocity. However, stacking velocity will only approach RMS velocity in areas...

1999

Application of 3

Search and Discovery.com

N/A

A Time Migration Before Stack

Richard Cooper, Malcolm Hobson

Geological Society of Malaysia (GSM)

... down to reflector = reflector two-way-time at zero offset = reflector two-way-time at x offset The optimum RMS stacking velocity function is given...

1991

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

Andy Furniss

Indonesian Petroleum Association

... — the velocity model used for PSDM is designed to give the best seismic image quality in exactly the same way that stacking velocities and RMS...

2000

Section 2: Improvement of Seismic Images of Complex Tectonic Structure in Deep Water with Research-Level Processing Sequences

John Miller and Roland von Huene

AAPG Special Volumes

... gradient of these data. CDP 180 in the Aleutian Trench and CDP 400 on the first terrace are interval velocity gradients from RMS stacking velocities...

1986

Extended Abstract: The Use of Seismic Stacking Velocities to Locate Prospective Reservoir Section

PESA Staff

Petroleum Exploration Society of Australia (PESA)

... Stacking Velocities To locate Prospective Reservoir Section Velocity (m/s) 0 1((X) 2CXX) 3CXX) 40CO 5CXX) 6(XX) Om Pleistocene ERA Forrootion l...

1999

A Simple Guide to Depth Conversion: Part I

Ashley Francis

GEO ExPro Magazine

... they can be stacked. The stretch factor is related to the RMS average velocity and so NMO correction gives an estimate of the velocity profile at each point...

2018

Migration Velocity Analysis by Migration of Velocity Spectra

Craig J. Beasley, Rolf Klotz

Southeast Asia Petroleum Exploration Society (SEAPEX)

... reasonably be met, even for large 3-D surveys. Migration velocity estimates are typically based on stacking velocities obtained from dip moveout (DMO...

1992

Inferring Stratigraphy from Seismic Data

R. E. Sheriff

AAPG Bulletin

... of untenable geologic conclusions or of misinterpretation of seismic data. Al-Chalabi, M., 1974, An analysis of stacking, RMS, average, and interval velocities...

1976

Long-Offset Approximations to NMO Function for a Layered Subsurface

E. Blias

Search and Discovery.com

... for transversely isotropic media: Geophysics, 60, 1550-1566. Al-Chalabi, M. 1974, An analysis of stacking, RMS, average and interval velocities over...

Unknown

Long-Offset Approximations to NMO Function for a Layered Subsurface

E. Blias

Search and Discovery.com

... for transversely isotropic media: Geophysics, 60, 1550-1566. Al-Chalabi, M. 1974, An analysis of stacking, RMS, average and interval velocities over...

Unknown

Velocity Analyses of Near Seafloor Strata Based on Multichannel Seismic Data from the Tonga Platform

Jeffrey E. Cole, Dennis M. Mann

Circum Pacific Council Publications

... were produced of reflector coherency as a function of stacking velocity and two-way travel time (Figure 6). These coherency plots were used...

1985

Abstract: Simplified Processing of Converted Wave Data; #90224 (2015)

John C. Bancroft and Thais Guirigay

Search and Discovery.com

... a prestack time migration. The velocity field of the subsurface is now defined with stacking or RMS type velocities. These velocities are much less sensitive...

2015

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