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The AAPG/Datapages Combined Publications Database

Showing 34,496 Results. Searched 200,674 documents.

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The plug drum effect, or why your microseismic events may not be where you think they are

Guillaume Bergery, Zhishuai Zhang, Jing Du, D. Diller, T. Shuck, B. Fish

Unconventional Resources Technology Conference (URTEC)

... model in order to locate the microseismic activity. Despite the numerous velocity data usually available - such as check shot VSP, sonic logs...

2017

Delineation of the Reservoir by Seismic Methods: Chapter 3

Roberto Sarmiento

AAPG Special Volumes

... must add the fact that velocity increases with depth; therefore, wavelength also increases with depth. Thus, seismic resolution decreases with depth...

1989

Modified Residual Migration

Craig J. Beasley, Rolf Klotz

Southeast Asia Petroleum Exploration Society (SEAPEX)

... is constant, the time change from T to TD has no effect on V1. Direct implementation would require a migration algorithm, such as Kirchhoff-summation...

1992

Structural segmentation in the Qiongdongnan Basin, South China Sea: Insights from analogue models and implications for hydrocarbon exploration

Gengxiong Yang, Hongwei Yin, Jun Gan, Wei Wang, Jitian Zhu, Dong Jia, Xiaofeng Xiong, and Wenqiao Xu

AAPG Bulletin

... segmentation with the orthogonal zone owing to the change in the VD direction. At a lower velocity (18 mm/hr), the fault direction was less affected by the VD...

2024

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

Jyoti Behura

Unconventional Resources Technology Conference (URTEC)

... is done using a velocity model extracted from traveltime tomography of perforation shots or using well log velocities. These velocities will be quite...

2016

Seismic Activity in the Central Gulf Coast Basin

Eugene R. Brumbaugh

New Orleans Geological Society

... to differ and individual interpreter comfort levels begin to change. In spite of the care taken with stacking velocity determinations and pre-stack static...

1991

Stratigraphic Velocity Interpretation: National Petroleum Reserve--Alaska: Chapter 12

E. W. Peikert

AAPG Special Volumes

... for each sequence. Calibrated or residual (corrected for depth effect) velocity maps can be compared with maps of depositional environments or seismic...

1985

All that wobbles isnt necessarily azimuthal anisotropy

Helen Debenham, Jennifer Badry, Mohamed Megebry

Petroleum Exploration Society of Australia (PESA)

... that the presence of the faulting results in large lateral velocity contrasts, an alternative interpretation could be described by the effect of velocity...

2019

Abstract: Effect of Thermal Shock on P and S Wave Speeds in a Low-porosity Quartz Sandstone; #90174 (2014)

Wei Xie and Douglas R. Schmitt

Search and Discovery.com

... shock, the wave velocity, elastic modulus, crack density and damage parameter show similar trends with changing pressure. Both events show a rapid change...

2014

Improving the image below complex overburden geology with FWI and Q-tomography: A case study at Etame license area, offshore Gabon

Richard Huang, Chong Chung, Benjamin Cole, Ivan Berranger, Ika Novianti, Paul Ware

International Meeting for Applied Geoscience and Energy (IMAGE)

... not see the fast velocity refraction as a separate event from the direct arrival (Figure 3b, red line indicates direct arrival time). This tuning effect...

2022

Program & Table of Contents

CSPG Special Publications

... Specs at Garrington, Alberta W.N. Goodway, L. Mayo 254 8:55 Velocity Anisotropy Estimation in the Vertical Plane Using VSP Data A. Kebaili, D.R....

1994

Study on Characteristic Variability of Weak Signal in High Density Seismic Acquisition; #41351 (2014)

Wujin Chen and Anchu Wu

Search and Discovery.com

... and Figure 2), the critical angle steps drop greatly. Therefore, the deep layers with high velocity have strong shielding effect on the primary waves...

2014

Abstract: Depth Conversion Methodology using a Stochastic Velocity Model for the McMurray Formation; #90171 (2013)

Darren Hinks, Tom Cox, Stephanie Schmidt, Dale Vanhooren, and Sergei Filin

Search and Discovery.com

.... The 5th track shows how the interval velocities can change within the McMurray zone due to the upper wet gas zone. The stochastic velocity model...

2013

Crosswell Seismic: Review of Field Operations, Survey Planning and Case History

Jeff Meyer, Randy Evans, Robert Martin, Cynthia L. Welch

West Texas Geological Society

... enhancing surface-seismic as was the application in this case study. Figure 1. Time Lapse Production Monitoring. Three velocity maps produced at differing...

2002

Abstract: 2D Depth Velocity Analysis without Tomography; #90187 (2014)

J. Patrick Butler and Randy Kolesar

Search and Discovery.com

... Zone not be flat but it will tend to be best near the true velocity. COFFs for different interval velocities Note the change in best velocity...

2014

Developing a New Technique Through Partnering with Contractors: Reservoir Prediction Utilizing AVO Walkaway VSP Data to Calibrate Surface Seismic Gathers, a Case Study in Indonesia

Patricia L. C. Henderson, Dan Hampson, Scott Leaney, Nigel Smith, John Rice, Dave Boreham

Indonesian Petroleum Association

...Developing a New Technique Through Partnering with Contractors: Reservoir Prediction Utilizing AVO Walkaway VSP Data to Calibrate Surface Seismic...

1994

Abstract: Application Of Shear Wave Velocities For Pore Pressure Prediction In High Temperature Overpressure Regimes; #90315 (2017)

John Ajesh

Search and Discovery.com

... a successful relationship between ES and porosity. Since shear wave velocity is unaffected by change in saturation, the ratio of P- and S-wave velocities (Vp/Vs...

2017

Anisotropy Kinematics Clarified through Regime Rrays Model

William J. Vetter

Search and Discovery.com

..., (3) not direction-wise orthagonal to front tangent planes; (4) and, velocity or slowness magnitudes along loci directions differ from those in front...

Unknown

Anisotropy Kinematics Clarified through Regime Rrays Model

William J. Vetter

Search and Discovery.com

..., (3) not direction-wise orthagonal to front tangent planes; (4) and, velocity or slowness magnitudes along loci directions differ from those in front...

Unknown

Anisotropic PP and PSv Prestack Depth Migration of 4C (OBC) Seismic Data, Offshore Trinidad

Tony Johns

Search and Discovery.com

..., as opposed to polar anisotropy (VTI/TTI) accounted for in traveltime ray tracing of prestack depth migration, can cause shear waves to split into fast (S1...

Unknown

Anisotropic PP and PSv Prestack Depth Migration of 4C (OBC) Seismic Data, Offshore Trinidad

Tony Johns

Search and Discovery.com

..., as opposed to polar anisotropy (VTI/TTI) accounted for in traveltime ray tracing of prestack depth migration, can cause shear waves to split into fast (S1...

Unknown

3D seismic modelling fast adaptability in the face of operational constraints „ A case study

Clemence Cuvilliez, Aline Robin, Veronique Duprat, Camille Le Magoarou, Bruno Pagliccia, Severin Rubio, Enrico Zamboni

International Meeting for Applied Geoscience and Energy (IMAGE)

... of quickly assessing the potential impact of such a change in the acquisition layout on the final seismic image. In particular, the following objectives...

2024

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