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The AAPG/Datapages Combined Publications Database

Showing 31,800 Results. Searched 190,740 documents.

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Determining Maximum Horizontal Stress with Microseismic Focal Mechanisms - Case Studies in the Marcellus, Eagle Ford, Wolfcamp

Alireza Agharazi

Unconventional Resources Technology Conference (URTEC)

... is the strength of seismic signal relative to the noise level, which is quantified and represented by the signal-to-noise ratio (SNR). The higher the SNR...

2016

Direct Hydrocarbon Indications Using Seismic Amplitude Variations with Offset

William J. Ostrander

AAPG Special Volumes

... is the somewhat poor signal-to-noise ratios (S/N) because the individual traces are not summed as in CDP stacking. To improve S/N values and still retain offset...

1987

Seismic Monitoring of Hydraulic Fracturing Activity at the Marcellus Shale Energy and Environment Laboratory (MSEEL) Site, West Virginia

Abhash Kumar, Erich V. Zorn, Richard Hammack, William Harbert

Unconventional Resources Technology Conference (URTEC)

... list of 436 LPLD events, we carefully selected some high quality LPLD events with high signal to noise ratio and analyzed 2-minute long records of CEUSN...

2017

Estimating Stimulation-Zone Anisotropy Effects During Microseismic Monitoring

Martin Karrenbach, Steve Cole, Victor Yartsev

Unconventional Resources Technology Conference (URTEC)

... this velocity model can be improved as perforation shots become available or microseismic events of high signal-to-noise ratio are observed...

2015

Chapter 8-part 2: Spectral Decomposition

Gregory A. Partyka, Michael D. Bush, Paul G. A. Garossino, Paul R. Gutowski

AAPG Special Volumes

... heterogeneity are often best imaged at higher frequencies, as long as a reasonable signal-to-noise ratio exists at those higher frequencies. Low...

2011

Extending the Resolution of Seismic Reflection Exploration

L. R. Denham

Pacific Section of AAPG

... signal-to-noise ratio than would be needed if the target were a weak reflector. Better resolution is always desirable, but spending money to achieve better...

1980

Moho, Basin Dynamics, Salt Stock Family Development, and Hydrocarbon System Examples of the North German Basin Revisited by Applying Seismic Common Reflection Surface Processing

Heinz-Juergen Brink, Dirk Gajewski, Mikhail Baykulov, Mi-Kyung Yoon

AAPG Special Volumes

... display a considerably improved signal-to-noise ratio and much more detail than the common midpoint processing (CMP) of the 1980s. Moreover, a velocity...

2012

Choosing the Best 3D Seismic Dataset for Reservoir Interpretation: A Case Study in Tunu Shallow Zone, Mahakam PSC, Indonesia

Teuku Reiza Yuanda, Rangga A. Brahmantio

Indonesian Petroleum Association

... was also performed using the amplitude spectrum. The measured element is the noise-to-signal ratio taken at the seismic central frequency (25 Hz...

2012

Completing the Picture

James Dodson

GEO ExPro Magazine

... that also benefits from a high signal-to-noise ratio at the majority of wavelengths when compared to conventional gravity when acquired from a moving...

2014

Anisotropy analysis from 3D VSP surveys acquired at Otway site

Sofya Popik, Andrej Bona, Roman Pevzner

Petroleum Exploration Society of Australia (PESA)

... important for Otway site as it can improve the quality of seismic imaging and thus provide better 4D signal/noise ratio. The presence of anisotropy has...

2019

Experiences with Dual-Sensor Towed Streamer Acquisition and Imaging in the Eastern Mediterranean, #41831 (2016).

Martin Widmaier, Oystein Lie

Search and Discovery.com

... deeper. The signal-to-noise ratio is improved by deeper tow, especially at the low frequency end of the seismic bandwidth. Improved low frequency content...

2016

Exorcising the Ghosts … The New Streamer Technology Launched by PGS

Lasse Amundsen, Martin Landrø

GEO ExPro Magazine

..., the receiver ghost thus cancels. The signal-to-noise ratio is increased and more high and low frequencies are recorded. Geophysicists have long known...

2007

Abstract: Microseismic Event Locations Uncertainity and Acquisition Geometry; #90224 (2015)

Amna Feroz and Mirko van der Baan

Search and Discovery.com

..., random errors associated with P and S wave arrival time picking and receiver configuration. In this study we investigate event location uncertainties...

2015

Case Study - Advanced Seismic Acquisitions and Processing Results in Indonesia

Michele Buia, Bakhrudin Mansyur, Herastya Iman Priyonggo

Indonesian Petroleum Association

... of “near sea bottom” related 3D multiples and to increase the signal to noise ratio [Manning et al. 2008] In particular it was decided to acquire 2 new...

2011

Abstracts: What Receivers will we use for Low Frequencies?; #90173 (2015)

R. Malcolm Lansley and Peter Maxwell

Search and Discovery.com

... on the low end serves us as well. Clearly, if we wish to record signal with good signal to noise ratio down to 3Hz or 2Hz or even down to 1Hz, we need...

2015

Least Square Q-Kirchhoff Migration: Implementation and Application

Xiaodong Wu, Yi Xie, Joe Zhou, Dechun Lin, Yu Wang

Petroleum Exploration Society of Australia (PESA)

.... The CIGs produced by LSQPSDM have higher signal-to-noise ratio and events become more continuous compared to QPSDM gathers. Two examples...

2018

Integrated reservoir characterization of low resistivity thin beds using three-dimensional modeling for natural gas exploration

Lim Yen Jun, Lo Shyh Zung

Geological Society of Malaysia (GSM)

... compartmentalized, hence a noble fault interpretation workflow is required to illuminate sub-seismic fault through effective method. The poor signal to noise...

2018

Anomalies Indicate Potential

Aslak Myklebostad, Svein Ellingsrud

GEO ExPro Magazine

... of stacks to achieve the required signal to noise ratio. The receivers are equipped with an active verticality correction for the vertical electric dipole...

2019

Application of TTI Reverse Time Migration, Deepwater Offshore Malaysia (Paper P5)

J. Sun, B. Mishra, C. Jiao, J. Sun, G. Hodgkiss, A. Bisset

Geological Society of Malaysia (GSM)

.... Dip filters were also applied in the deep part to control remaining noise patterns. Despite the process, the signal/ noise ratio is still relatively...

2012

Geophysical Interpretation of Pinedale Field

Sally G. Zinke

AAPG Special Volumes

.... This configuration of source and receivers enhances the signal-to-noise ratio by utilizing both down-going direct arrival and up-going reflected information...

2014

Abstract: AVO Compliant Spectral Balancing; #90171 (2013)

Nirupama Nagarajappa and Jon Downton

Search and Discovery.com

... reference band the frequency spectrum is flat and has a high signal-to-noise ratio. Each frequency window within the trace is then whitened to the same...

2013

Reservoir Uncertainty

Mike Shepherd

AAPG Special Volumes

... for features, only if they are greater than about 2040 m (66132 ft) in height at moderate reservoir depths. Additionally, variation in the signal to noise ratio...

2009

Geological Considerations during Microseismic Monitoring, Processing, and Interpretation of Hydraulic Fracture Treatment

J. Le Calvez, S. Hanson-Hedgecock, P. Primiero, T. Al-Wadhahi, O. Harrasi

Unconventional Resources Technology Conference (URTEC)

... azimuth. Figure 6 illustrates the effect of high noise, low signal to noise ratio events on hodogram plots. The event on the left has low noise and a high...

2016

Identification of Fracture Zone in Field AŽ Using Maximum Entropy Method

Aditya T. Pratama, Leonard J.I. Lisapaly

Indonesian Petroleum Association

... Maximum entropy method is a technique which enhances the resolution and signal/noise ratio of any measure on a given system, using certain a-priori...

2005

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