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The AAPG/Datapages Combined Publications Database

Showing 29,179 Results. Searched 187,807 documents.

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Abstract: Modelling Near-field Effects in VSP-based Q-estimation Part 2: Modelling Results; #90171 (2013)

Arnim B. Haase and Robert R. Stewart

Search and Discovery.com

... dependence on frequency in the far-field but not in depth regions where the near-field becomes significant. Near-field effects are one possible...

2013

Abstract: Modelling Near-field Effects in VSP-based Q-estimation Part 1: Theoretical Developments; #90171 (2013)

Arnim B. Haase and Robert R. Stewart

Search and Discovery.com

... The near-field of a P-wave point source decays faster with distance from the source than the far-field (1/z2 versus 1/z). It also decays with frequency...

2013

Spherical Wave Model Tests of VSP-Based Q-Estimation Techniques

Search and Discovery.com

... functions, spherical spreading is included. Also modelled are near-field and far-field effects. The Density Change Model The parameters for this earth model...

2013

Broadband Seismic Technology and Beyond: Part VI: Towards a Ghost-Free Solution

Lasse Amundsen, Martin Landrø, Eivind Frømyr

GEO ExPro Magazine

... conventional source arrays have a radiation pattern the emitted wave-field directed into the earth. At least one suband are far from being isotropic...

2013

Recommendations From Error Analysis of Single Well Microseismic Data With Full-Wavefield Moment Tensor Inversion: A Case Study

Juan M. Lorenzo, Trudy L. Watkins, Arash Dahi Taleghani

Unconventional Resources Technology Conference (URTEC)

...field amplitudes with distinguishable P- and S-wave terms. The far-field amplitudes are what are mostly observed in earthquake data with large source- ...

2017

Reservoir Description by Interferometric Imaging of VSP Data in Transition Zones

Thomas Radford, Martin Karrenbach, Ferry Yustiana, Willi Brianno, Dhea Wachju

Indonesian Petroleum Association

... large variability in data quality due to strong variations in near surface effects. Widely changing source coupling and radiation patterns create...

2013

Application of Precise Acoustic Positioning Techniques During the Development of the Liuhua Field in the South China Sea

John D. Hughes, Nigel C. Kelland

Southeast Asia Petroleum Exploration Society (SEAPEX)

... mechanical releases and ground weights, was used by Racal Positioning and Survey to install and position the Near Field transponders. The Far Field array...

1996

Appendix A: Considerations for Optimum 3-D Survey Design, Acquisition and Processing

R. Malcolm Lansley

AAPG Special Volumes

... source signature may be estimated deterministically from near-field pressure measurements in the vicinity of each of the individual air guns within...

2011

Marine Seismic Sources: Part I: Air-Guns for Non Experts

Lasse Amundsen, Martin Landrø

GEO ExPro Magazine

...-bubble ratio is PBR=P/B. The far-field signature (lower trace) shows the effect that the source ghost has on the near-field signature. The peak...

2010

Modeling of Near-Wellbore Hydraulic Fracture Complexity

Christopher Sherman, Joseph Morris, Scott Johnson, Alexei A. Savitski

Unconventional Resources Technology Conference (URTEC)

...’ orientations under the influence of near-field stress concentrations, propagate outwards and turn towards their ideal orientations under the far-field...

2015

A Prototype Near-Field GIS Model to Characterize Acute Risks of Sequestered CO2 Release Through Orphan Wells

Kenneth T. Bogen, Frank J. Gouveia, Lee A. Neher, Steven G. Homann

AAPG Special Volumes

...A Prototype Near-Field GIS Model to Characterize Acute Risks of Sequestered CO2 Release Through Orphan Wells Kenneth T. Bogen, Frank J. Gouveia, Lee...

2009

Q Marine

PESA Staff

Petroleum Exploration Society of Australia (PESA)

... pressure and array geometry. The far-field signature of a source array can be measured using a far• field hydrophone, suspended some hundreds...

2000

Reflection Seismogram in a Solid Layered Earth: ABSTRACT

Milo M. Backus, Filho Nepomuceno, Jingzhong Cao

AAPG Bulletin

... angle can be very significant. Replacement of the plane wave normal incidence synthetic seismogram with the point source solid earth synthetic...

1983

Fine-Sediment Deposition from Gravity Surges on Uniform Slopes

W. Brian Dade, John R. Lister, Herbert E. Huppert

Journal of Sedimentary Research (SEPM)

.... If this condition is not met, then there is strong interaction between fluid entrainment and sediment deposition in the near field. Consequently, the far-field...

1994

A Sound Exposure Level (SEL) Study for a 3D Seismic Survey off the WA Coastline, Browse Basin

Andrew S. Long, Jens F. Wisløff, Jaafar Ali, Averrouz Mostavan, David Hedgeland, Alec J. Duncan, Amos L. Maggi, Jeremy Colman

Petroleum Exploration Society of Australia (PESA)

... of likely received SELin the near-field and far• several years. The purpose of this panel was Factors that influence the amount ofTS include fie ld...

2011

Displacement Geometry in the Volume Containing a Single Normal Fault

Jim A. M. Barnett , John Mortimer , John H. Rippon , John J. Walsh , Juan Watterson

AAPG Bulletin

.... Displacement associated with a fault can be regarded as consisting of two separate components: near-field and far-field. The near-field component...

1987

Abstract: Benthic Assessment of the Deepwater Horizon Accident: A Worms Eye View; #90310 (2017)

Drew A. Carey, Joseph D. Germano, Kersey Sturdivant, Daniel Doolittle

Search and Discovery.com

.... A series of three SPI/PV cruises looking at both near-field and far-field impacts to the benthic community in the vicinity of the Deepwater Horizon...

2017

IV. The Role of Seismic Wavelets and Wavelet Processing

Norman S. Neidell

AAPG Special Volumes

... truly exists. The measurements may be made up close to the source where they are termed "near field", or at some distance comparable to those...

1979

Scaling Relationships in Fluvial Systems: Implications for the Mannville Group, Alberta Foreland Basin; #51132 (2015)

Mike Blum

Search and Discovery.com

... very far to the north of the type area. It would be rare to see tidal effects all the way through the backwater reach of any river, and very unlikely...

2015

Evaluating the Effects of Lithofacies and Thin Shales on the Lateral Distribution of Hydrothermal Dolomite Reservoirs, Albion‐Scipio and Stoney Point Fields, Michigan Basin; #90131 (2011)

Peter J. Feutz and G. Michael Grammer

Search and Discovery.com

...Evaluating the Effects of Lithofacies and Thin Shales on the Lateral Distribution of Hydrothermal Dolomite Reservoirs, Albion‐Scipio and Stoney Point...

2011

ABSTRACT: Evaluating the Effects of Lithofacies and Thin Shales on the Lateral Distribution of Hydrothermal Dolomite Reservoirs, Albion-Scipio and Stoney Point Fields, Michigan Basin; #90132 (2011)

Peter Feutz

Search and Discovery.com

... and Stoney Point Fields, Michigan Basin; #90132 (2011) Peter Feutz Evaluating the Effects of Lithofacies and Thin Shales on the Lateral Distribution...

2011

ABSTRACT: Kinematic and Dynamic Models for Earthquake Source Characterization; #90118 (2011)

Arjun Tiwari and Rahul Singh

Search and Discovery.com

... of explanation based on factors which are kinematic and dynamic characteristics. Radiation can be separated into two main components: a near field term...

2011

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