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The AAPG/Datapages Combined Publications Database

Showing 952 Results. Searched 195,697 documents.

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Abstract: Seismic Detection of Cracks in Carbonates Associated with Potash Mining; #90171 (2013)

Zimin Zhang and Robert R. Stewart

Search and Discovery.com

... delay in PS reflection traveltime. 950 950 950 950 DawsonBay 1000 DawsonBay 1000 1000 1050 1050 1000 SecondRedBed PrairieEvaporite Depth (m...

2013

Enhancing Seismic Interpretation Using Crosswell Seismic: Case Study From Indonesia

Tri Handayani, Zeppy Irwanzah, M. Taslim, Sanjeev Dogra, Ajay Nalonnil, Bruce Marion, Pedro Carrillo Reyes

Indonesian Petroleum Association

...-precision velocity model for reflection imaging. The final reflection image product generated is in depth units. During the reflection imaging step, data...

2011

Seismic Stratigraphy of the Bahamas

John W. Ladd , Robert E. Sheridan

AAPG Bulletin

... to the Great Isaac well, we find the depth of reflection R to be 1,560 ± 100 m (1.34-sec two-way traveltime) and the depth of reflection P to be 1,930...

1987

Use of Seismic Surveying for Study of the Subsurface Structure of Southeast Turkmenistan

D. M. Mil’shteyn

Petroleum Geology: A Digest of Russian Literature

...) velocity of propagation of elastic vibrations increases gradually with depth, reflecting a corresponding increase in formation velocities...

1960

Simultaneous Joint Inversion of Electromagnetic, Gravity and Seismic Data for Thrust Belt and Sub-Basalt Imaging

Virgilio Massimo, Stephen Hallinan, Marco Mantovani

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... was applied in the framework of the depth imaging velocity model building workflow. Figure 3 shows the single domain MMT inversion; good for a regional...

2009

The use of FWI in coal exploration

Mehdi Asgharzadeh, Maryam Bahri, Milovan Urosevic

Petroleum Exploration Society of Australia (PESA)

... seismic images are of a high quality; issues with depth conversion, fault throw estimate, coal quality, presence of fractured and gassy zones, weak strata...

2018

Lithoprobe Basin-Scale Seismic Profiling in Central Alberta: Influence of Basement on the Sedimentary Cover

D.W. Eaton, B. Milkereit, G.M. Ross, E.R. Kanasewich, W. Geis, D.J. Edwards, L. Kelsch, J. Varsek

CSPG Bulletin

... to the increase in velocity with depth. Superimposed on the seismic traces are velocity logs and synthetic seismograms from three control wells (see Fig. 1...

1995

Abstracts: Seismic Anisotropy of the Marcellus Shale: Feasibility Study for Fracture Characterization; #90173 (2015)

James Gaiser, Alvaro Chaveste, Mary Edrich, Tony Rebec, and Richard Verm

Search and Discovery.com

... characterization of two principal crack densities, an infill fluid factor and isotropic background velocity is possible by inversion of NMO ellipses and zero...

2015

Origin of overpressure and pore-pressure prediction in the Baram province, Brunei

Mark R. P. Tingay, Richard R. Hillis, Richard E. Swarbrick, Chris K. Morley, Abdul Razak Damit

AAPG Bulletin

...-vertical effective stress plots. Acoustic traveltime is inversely related to porosity. Hence, sonic velocity-vertical effective stress data can also...

2009

Abstracts: Challenges and Solutions in Locating and Interpreting Microseismic Events from Surveys in the Horn River Basin; #90173 (2015)

Ulrich Zimmer

Search and Discovery.com

... away but has an apparent smaller depth uncertainty caused by the use of direct waves and headwaves for the localization. Assuming that the velocity...

2015

Abstract: Local Stretch Zeroing NMO Correction; #90174 (2014)

N. Kazemi and H. R. Siahkoohi

Search and Discovery.com

..., Series approximation in Velocity and traveltime computations: Geophys. Prosp., 21, 783-795. Brouwer, J. H., 2002, Improved nmo correction...

2014

Gated based quantum computer algorithm for geophysical inversion

Jorge E. Monsegny, Daniel Trad, Don C. Lawton

International Meeting for Applied Geoscience and Energy (IMAGE)

... calculations, only forward modelling, and residuals calculation. We illustrate the algorithm with a small instance of a traveltime tomography problem...

2023

River Seismic Operations in the West Siberian Lowland

A. K. Shmelev

Petroleum Geology: A Digest of Russian Literature

... reflected waves. Correlation is made without a correction for the depth of the shot hole or the low velocity zone because their absolute value is generally...

1960

Understanding The Mesozoics Beyond Basalt: A Case Study Of Sub-Basalt Imaging

S. Sengupta, S. K. Goswami, G. Menzel-Jones, B. Chowdhury, Artem Sazykin

Indonesian Petroleum Association

..., the diving-wave penetration was limited up to a maximum depth of 1.8 km. To update the deeper sections, a velocity scanning approach, and multiple passes...

2020

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

John C. Bancroft and Thais Guirigay

Search and Discovery.com

... for all depths. The traveltime to a vertical array of conversion points, defined in depth, can be computed with conventional methods such as ray tracing...

2015

Extended Abstract: Using Crosswell Measurements to Enhance Velocity Model Calibration for Real-Time Microseismic Monitoring

Leah J. Hogarth, Conrad Kolb, Joël Le Calvez

GCAGS Transactions

.... Measurements of the velocity field, reflectivity, and attenuation provide crosswell products such as traveltime and attenuation tomography (e.g., Carrillo...

2016

AAPG Memoir 76, Chapter 13: Consolidation State, Permeability, and Stress Ratio as Determined from Uniaxial Strain Experiments on Mudstone Samples from the Eugene Island 330 Area, Offshore Louisiana

Beth B. Stump and Peter B. Flemings

AAPG Special Volumes

..., scientific results, v. 150: College Station, Texas, Ocean Drilling Program, p. 377–384. Bowers, G. L., 1994, Pore pressure estimation from velocity...

2001

Effective Data Denoising and Imaging in the Sanga Sanga PSC Using CRS Approach

Michele Buia, Paolo Marchetti, Amalia Setoputri, Teguh Nugraha

Indonesian Petroleum Association

.... It presents several advantages when compared to conventional stacking methods such as NMO/DMO stack; firstly it uses a traveltime moveout formula...

2008

Time-Lapse Seismic and Geomechanics

Martin Landrø, Lasse Amundsen

GEO ExPro Magazine

... that such stretching will reduce the P-wave velocity of the rock, and hence will introduce an overburden time shift. Guilbot and Smith (2002) used 4D...

2017

Seismic Wave Attenuation in Gas Hydrate-Bearing Sediments from Vertical Seismic Profiling Data, Mallik, Northwest Territories, Canada

Gilles Bellefleur

Search and Discovery.com

... ) z0 z  z0 c(Z ) where W is the traveltime, ] is the depth, and c(Z ) is the complex velocity. Several models relate the complex velocity...

Unknown

Seismic Wave Attenuation in Gas Hydrate-Bearing Sediments from Vertical Seismic Profiling Data, Mallik, Northwest Territories, Canada

Gilles Bellefleur

Search and Discovery.com

... ) z0 z  z0 c(Z ) where W is the traveltime, ] is the depth, and c(Z ) is the complex velocity. Several models relate the complex velocity...

Unknown

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)

... The success of any depth velocity model building (VMB) process depends upon the quality of the input dataset. TECH TALK Figure 1: Map showing location...

2016

Abstract: A Listric Model of the Naga Thrust and Fold Belt, Assam, India;

Brandy Hawkins, Priyank Jaiswal, Jack Pashin, Caroline Burberry, Rahul Dasguta

Search and Discovery.com

... of traveltime tomography and pre-stack depth migraton to image the profile as a whole. Then, we imaged the fine-scale suprathrust structure using full...

Unknown

Late Cretaceous-Cenozoic Development of Outer Continental Margin, Southwestern Nova Scotia

Stephen A. Swift

AAPG Bulletin

... (1975) found paleocanyons on the upper rise, within the diapir province, Table 1. Interval Velocity and Depth Versus Traveltime Functions End_Page...

1987

1.2 Seismic Stratigraphy: 1.2.5 Clastics: Abyssal Sediment Waves

G. S. Mountain and B. E. Tucholke

AAPG Special Volumes

... 2. L-DGO Line 77 in two-way traveltime and in depth. The accompanying line drawing in time shows irregular discontinuous reflectors immediately...

1983

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