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The AAPG/Datapages Combined Publications Database

Showing 8,551 Results. Searched 188,628 documents.

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Traveltime Computations for Locating the Source of Micro Seismic Events and for Forming Gridded Traveltime Maps

John C. Bancroft

Search and Discovery.com

.../home/kmath113.htm Website 2, htpp://mathworld.wolfram.com/ApolloniusProblem.html Vidale, J., 1988, Finite-difference calculation of traveltimes, Bulletin...

Unknown

Traveltime Computations for Locating the Source of Micro Seismic Events and for Forming Gridded Traveltime Maps

John C. Bancroft

Search and Discovery.com

.../home/kmath113.htm Website 2, htpp://mathworld.wolfram.com/ApolloniusProblem.html Vidale, J., 1988, Finite-difference calculation of traveltimes, Bulletin...

Unknown

Abstract: Regular Grids Travel Time Calculation … A Practical Huygens Wavefront Expansion Approach; #90187 (2014)

Zhengsheng Yao, Mike Galbraith, and Randy Kolesar

Search and Discovery.com

...Abstract: Regular Grids Travel Time Calculation … A Practical Huygens Wavefront Expansion Approach; #90187 (2014) Zhengsheng Yao, Mike Galbraith...

2014

Amplitude and Bandwidth Recovery Beneath Gas Zones Using Kirchhoff Prestack Depth Q-Migration

Jonathan Liu, Peter Traynin, J. M. Reilly

Indonesian Petroleum Association

... frequency-dependent traveltimes which is crucial in the Kirchhoff integral. In the viscoacoustic media the integral over the frequency domain cannot...

2007

Abstract: Monitoring Active Steam Injection through Time-lapse Seismic Refraction Surveys; #90174 (2014)

Byron M. Kelly and Don C. Lawton

Search and Discovery.com

... on first-arrival head waves, and observable through the subtraction of baseline survey traveltimes from those recorded by the monitor surveys...

2014

Abstract: Regular Grids Travel Time Calculation … Fast Marching with an Adaptive Stencils Approach; #90187 (2014)

Zhengsheng Yao, Mike Galbraith, and Randy Kolesar

Search and Discovery.com

...Abstract: Regular Grids Travel Time Calculation … Fast Marching with an Adaptive Stencils Approach; #90187 (2014) Zhengsheng Yao, Mike Galbraith...

2014

Abstract: First-Arrival TomoStatics and Residual Statics for Near-Surface Corrections; #90211 (2015)

Jie Zhang, Oz Yilmaz, and Nanxun Dai

Search and Discovery.com

... for making near-surface corrections. In tomostatics calculation, we calculate one-way statics from the actual shot and receiver locations to a smooth floating...

2015

First-Arrival Traveltime Inversion in the CMP Domain: Method and Application

Search and Discovery.com

... using velocity inversion from first-arrival traveltimes. The first approach is a tomographic method (e.g. Hampson and Russell, 1984; Stefani, 1995...

2013

Estimation of Seismic Attenuation in the Delaware Basin Using Peak Frequencies

Małgorzata Drwiła, Leo Eisner, Zuzana Jechumtalová, Denis Anikiev, Randy Keller

Unconventional Resources Technology Conference (URTEC)

... that measured peak frequencies decrease exponentially with the traveltimes of the corresponding waves. Traveltimes were calculated as differences...

2018

Prestack Depth Imaging Within the Makassar Straits, Eastern Kalimantan, Indonesia

Chris Willacy, Suryadi Oemar, A. Edy Hermantoro, Paul Gilleran

Indonesian Petroleum Association

... data. The inputs to the reflection tomography are traveltimes of seismic events and the output is a structural model of seismic wave interval...

2000

Fractured Continuum Approach to Stochastic Permeability Modeling

S. A. McKenna, P. C. Reeves

AAPG Special Volumes

... different conceptual models of fracture permeability on particle traveltimes. Altman, S. J., B. W. Arnold, R. W. Barnard, G. E. Barr, C. K. Ho, S. A. McKenna...

2006

Abstracts: Determining Elastic Constants of an Orthorhombic Material by Physical Seismic Modeling; #90173 (2015)

Faranak Mahmoudian, Gary F. Margrave, P. F. Daley, and Joe Wong

Search and Discovery.com

...- and S-waves group velocity in different directions are measured from surface traveltimes picked from the scaled physical model data acquired over...

2015

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

... considered unreliable, and so are often not included in the calculation of near-surface velocities. For this project, carefully edited uphole times were...

2015

Microseismic Without Dots … Probabilistic Interpretation and Integration of Microseismic Surveys

Ulrich Zimmer

Unconventional Resources Technology Conference (URTEC)

... on the exact process of calculation of the location uncertainty the resulting ellipsoid can be interpreted in different ways. The most common and desirable...

2017

The Application of 2D Common-Offset Common-Reflection-Surface (CO CRS) Stack Method Towards Synthetic Data

Parapaty Halley, Rachmat Sule, Teuku Abdullah Sanny

Indonesian Petroleum Association

... applications, e.g. for interpretation. These wavefield attributes are also important data, which can be used for further calculation, e.g. reflection...

2009

A Dynamic Reflection Traveltime Calculation Method

Y. Wang, D.R. Schmitt

CSPG Special Publications

...A Dynamic Reflection Traveltime Calculation Method Y. Wang, D.R. Schmitt 1994 49 50...

1994

Near Surface Imaging using Joint Seismic Gravity Inversion

Teguh Suroso, Boko Nurdiyanto, Trilaksita B. Nugraha, Lita Novitasari, Heri Winarto

Indonesian Petroleum Association

... Calculation Statics were calculated using velocity model, floating and intermediate datum, and first break as inputs. This stage was applied to both...

2019

Abstract: P-wave and S-wave Near-surface Characterization in Northeast British Columbia (NEBC); #90174 (2014)

Liliana M. Zuleta and Don C. Lawton

Search and Discovery.com

...: Manual calculation with Excel spreadsheets and software developed to automate the plus-minus analysis. Depth and velocities were obtained and from them...

2014

Abstracts: Fast Search Algorithms for Automatic Localization of Microseismic Events; #90173 (2015)

Ulrich Zimmer and Jeremy Jin

Search and Discovery.com

... a potential event location and its probability of being the event location is evaluated using the traveltimes to the sensors as stacking templates...

2015

Abstracts: General Anisotropic Travel Times … A Purpose Built Solution; #90173 (2015)

R. Phillip Bording

Search and Discovery.com

... triangle calculation has been demonstrated, a set of four triangle compute cells will be constructed for the FPGA. This will allow for a complete row...

2015

Determination of Velocity Model by Using NIP-Wave Tomographic Inversion: Application to Synthetic and Real Data

A. Hendriyana, R. Sule, Y. Akbar, L.A. Poerwaka, T.A. Sanny, Sardjito, Waluyo, Adriansyah

Indonesian Petroleum Association

... based on focusing image in migration-based velocity model estimation. All reflection traveltimes stemming from a common reflection point (CRP...

2009

Mapping of Rock Property Changes in Space and Time Using Microseismic Data through Full-Waveform Inversion

Jyoti Behura

Unconventional Resources Technology Conference (URTEC)

... _!_) = D(Ss-Sp), (1) where ts and tp are the picked S- and P-wave traveltimes at a station, D is the distance between the station...

2016

Seismic Modeling of Acid-Gas Injection in a Deep Saline Reservoir

Search and Discovery.com

... is studied of non-aqueous acid gas injection into a saline dolostone reservoir. The feasibility of monitoring is judged by the sensitivity of traveltimes...

2013

Abstract: Complex-beam Migration: Non-recursive and Recursive Implementations; #90187 (2014)

Tianfei Zhu

Search and Discovery.com

... of the Seismological Society of America, 72, S277-S317. Gray, S. H., and May, W.P., 1994, Kirchhoff migration using eikonal equation traveltimes...

2014

Abstracts: Near-surface Velocity Model Building and Statics in Permafrost Regions; #90173 (2015)

Tianfei Zhu, Yan Yan, and Jon Downton

Search and Discovery.com

... features incorporated in our implementation of this technique (Zhu et al., 2000). The traveltimes and ray-paths of first arrivals are calculated...

2015

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