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The AAPG/Datapages Combined Publications Database

Showing 839 Results. Searched 187,807 documents.

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Elastic Wave Seismic Interpretation of Heavy-Oil Reservoirs

Search and Discovery.com

... with the traveltime method has been generally positive. However, in order to pick the same reflection events on multicomponent data, it is important...

2013

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

David W. Bell

AAPG Special Volumes

... velocity vs. depth. Figure 8 shows how well the various curves predict average velocity as a function of time. The input data range...

2001

Abstracts: Application of CSP Gather Modeling for Determination of Velocity Smoothing Operator for Prestack Kirchhoff Depth Migration; #90173 (2015)

Hassan Khaniani and John C. Bancroft

Search and Discovery.com

... The relationship between reflection and diffraction traveltime surfaces in the shot records is that the response of the scatter points (diffraction curves...

2015

Abstracts: Locating Microseismicity in Three-Dimensionally Heterogeneous Reservoirs; #90173 (2015)

Adam M. Baig, Ted Urbancic, Margaret Seibel, Vladimir Shumila

Search and Discovery.com

... by lithological tops interpreted from seismic cross-sections. Figure 2: A depth view of wavefronts (blue curves) and traveltime field (blue-yellow contours...

2015

Abstract: Combining Geology and Prestack Seismic for Structural Model Building in the Gaspé Belt (Québec, Canada); #90211 (2015)

Anne Jardin, Martin Bêche, Karine Broto, Dave Saucier, and Donna Kirkwood

Search and Discovery.com

...-Ordovician basement (Taconian fold belt). Due to the flexibility and efficiency of the IFP inversion software, various types of seismic events, e.g....

2015

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

John C. Bancroft

Search and Discovery.com

...Traveltime Computations for Locating the Source of Micro Seismic Events and for Forming Gridded Traveltime Maps John C. Bancroft Traveltime...

Unknown

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

John C. Bancroft

Search and Discovery.com

...Traveltime Computations for Locating the Source of Micro Seismic Events and for Forming Gridded Traveltime Maps John C. Bancroft Traveltime...

Unknown

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)

.... Knowledge about seismic attenuation in this sedimentary basin is very limited. We applied the peak frequency method to selected seismic events with high...

2018

Acquisition and Ananlysis of Wide-Angle Reflection and Refraction Seismic Data

Paul L. Stoffa

Circum Pacific Council Publications

... to improve the signal-to-noise ratio and reduce the data volume. events as a direct result of the failure of the hyperbolic traveltime assumption...

1989

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

... 3. Contours comparison: red curves are theoretic contours and dark curves generated from grid traveltime. . Acknowledgements Thanks to...

2014

Strike Oriented, Swath Seismic and Its Potential Application to Exploration and Development in the Papuan Fold and Thrust Belt

William F. Robinson IV

Papua New Guinea (PNG) Petroleum Convention Proceedings

... swath in Figures 12 and 13, and stand out clearly as the isolated curves away from the main groups. Discussion of Ray-Trace Results The traveltime...

1996

Abstract: Tomographic Reflected-Wave FWI Using Time Lag; #90254 (2016)

Geoff Clark, Yilong Qin

Search and Discovery.com

.... To mitigate the limitation of ray-based tomography methods, various wave-equation-based traveltime inversion methods or finite-frequency tomography...

2016

Basic Seismic Processing: Part 7. Geophysical Methods

Peter M. Duncan

AAPG Special Volumes

... subsurface layers appear in shot records (Figure 1) as straight lines rather than hyperbolic curves. These events have a constant "apparent velocity...

1992

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

... as input for migration must be accurate. Erroneous of model-depth velocities will reduce the capabilities of PSDM to image reflection events...

2009

Abstract: Prestack Signal Enhancement by Non-hyperbolic MultiFocusing; #90187 (2014)

Evgeny Landa, Alex Berkovitch, and Kostya Deev

Search and Discovery.com

... for traveltime stacking surface description is used. It allows accurately approximate traveltimes of seismic events in the vicinity of arbitrary offset. We present...

2014

AAPG Memoir 76, Chapter 16: Pore Pressure ahead of the Bit: An Integrated Approach

Nader C. Dutta, William H. Borland, W. Scott Leaney, Richard Meehan, and W. Les Nutt

AAPG Special Volumes

... attribute, commonly a porosity indicator, to fluid pressure. A set of calibration curves for a particular region are established, relating deviation...

2001

Near Surface Imaging using Joint Seismic Gravity Inversion

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

Indonesian Petroleum Association

... traveltime and gravity data as inputs and minimizes an overall objective function in a single inversion run to obtain near surface velocity and density...

2019

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

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

Search and Discovery.com

... Gassmann’s equations, the traveltime difference is seen to be on the order of a quarter millisecond for each 10 m thickness of the acid-gas plume...

2013

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

Search and Discovery.com

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

2013

Non-First-Break Solution for Shallow Velocity Anomaly Problem; #41602 (2015)

Emil Blias

Search and Discovery.com

... NMO curves for several (picked) horizons that will be used in non-linear traveltime inversion. 2. Analytical NMO inversion to create a zero...

2015

Mozambique Upper Fan: Origin of Depositional Units

L. Droz, D. Mougenot

AAPG Bulletin

... down-stream region, with a north-south channel flanked by thick (1.5 sec two-way traveltime) asymmetric levees, and a migrating upstream region where...

1987

Abstracts: Converted Wave Processing in the EOM Domain; #90173 (2015)

Thais A. Guirigay and John B. Bancroft

Search and Discovery.com

... will lie. These figures (2) show the traveltime errors on CSP gathers views of various offsets of h = 50, 200, and 500. AAPG Search and Discovery Article...

2015

Checkshots and Vertical Seismic Profiles: Part 7. Geophysical methods

B. A. Hardage

AAPG Special Volumes

... have one shortcoming that can limit their usefulness--the reflection events used to map the seismic sequences and the seismic facies that describe...

1992

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