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...

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...

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...

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...

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...

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...

Super-virtual interferometry for noise elimination on vertical seismic profiling (VSP)

Yicheng Zhou, Yang Cui, Sherif Hanafy

International Meeting for Applied Geoscience and Energy (IMAGE)

... information, with the goal of improving the signal-to-noise ratio (SNR). The key idea of SVI involves generating diffraction gathers by convolving different...

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...

Abstract: Sub-Salt and Sub-Basalt Imaging Using Long Offset and Multicomponent Seismic Data, by J. Gaiser, N. Jones, and P. Fontana; #90923 (1999)

Search and Discovery.com

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...

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...

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...

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...

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...

Interpreting microseismic stimulation monitoring data: Hydraulic Fracturing Test Site 1, Reagan County, Texas

Iris Haihong Wang, Robert R. Stewart

International Meeting for Applied Geoscience and Energy (IMAGE)

... to the monitoring bias. The cutoff value for signal-to-noise ratio (S/R) is 1.45. Table 1 shows the comparison of number of events for 11 wells. First...

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...

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...

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...

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...

Abstract: Automatic Time Picking and Velocity Determination on Full-Waveform Sonic Logs; #90171 (2013)

Lejia Han, Joe Wong, John C. Bancroft, and Robert R. Stewart

Search and Discovery.com

... an automatic picking method based on a modified energy ratio attribute. Noise reduction schemes are used to provide significant improvement on picking...

Quantitative assessment tools for objective-based optimization of seismic acquisition geometry selection

Ali Rabaan, Ilya Silvestrov, Ali Tura, Andrey Bakulin

International Meeting for Applied Geoscience and Energy (IMAGE)

... to evaluate seismic amplitude fidelity and establish signal-to-noise ratio (SNR) thresholds for robust quantitative analysis in complex nearsurface...

Application of Amplitude, Frequency, and Other Attributes to Stratigraphic and Hydrocarbon Determination: Section 2. Application of Seismic Reflection Configuration to Stratigraphic Interpretation

M. T. Taner, R. E. Sheriff

AAPG Special Volumes

... of events; it is especially useful where the signal to noise ratio is poor, although this benefit is not well-illustrated in this example. Discontinuities...

Joint OBN and 3D DAS-VSP data acquisition and processing in East China Sea

G. Yu, G. M. He, Z. L. Cao, H. B. Liu, J. J. Li, Y. Z. Chen, J. J. Wu, J. G. Li, X. M. Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

... is large, and the reservoir prediction is difficult; (3) The acquisition method of towed streamer has poor imaging accuracy and low signal-to-noise ratio...

Abstract: Near-surface S-wave Velocity from an up Hole Survey using Explosive Sources; #90187 (2014)

Saul E. Guevara, Gary F. Margrave, and William M. Agudelo

Search and Discovery.com

... event picking (e. g.. Al Dulaijan, 2008)., Borehole data surveys allow relating Vs to depth and to lithological properties for an specific location...

The deblending processing of multi-well 3D DAS-VSP data in the Middle East

Fei Li, Gang Yu, Haibo Liu, Jiawen Song, Yanbin Zhang, Yuanzhong Chen, Tiankui Yin, Jianxin Han, Qingfeng Li

International Meeting for Applied Geoscience and Energy (IMAGE)

... source signal, resulting in an unsatisfactory signal noise separation effect. For this reason, some scholars use the predictability between coherent...