Advances in Seismic Acquisition in the Sabana de Bogotá, Colombia

Jair Rodrigues de Salles Scares Filho, Mario Geraldo de Freitas

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

...) is revealed, showing that low energy level of mixed signal and noise was recorded, and recovered on stacked data. After processing, there is good...

Are Key Technological Changes of the Last Three Years Enough to Warrant Reprocessing? Interpolation and AVO Inversion for the Nisku at Brazeau; #41556 (2015)

Lee Hunt, Scott Reynolds, Mark Hadley, Scott Hadley, Jon Downton, Bashir Durrani

Search and Discovery.com

... and then prestack migrating the seismic data, the signal-to-noise level is improved. This is a result of the better sampling of the wavefield prior to the migration...

VSP Data in COmparison to toher Borehole Seismic Data, by Robert J. Brewer #40059

Search and Discovery.com

New Insights into the Deep-Water Otway Basin - Part 1. Integrated Depth Imaging Workflows Unravelling the Subsurface

Si Ying Lee, Bee Jik Lim, Arwindran Anantan, Alexander Karvelas

Australian Petroleum Production & Exploration Association (APPEA) Journal

... seismic data to achieve a broader useable signal bandwidth and improve the signal-to-noise ratio. The enhanced low-frequency component was crucial...

Seismic Detection of Gas in Cretaceous Sandstones and Fractured Sandstones

Walter E. Johnson, William T. Brown Jr., James B. Peterson

Rocky Mountain Association of Geologists

...-to-noise ratio. Figure 2 contains a schematic of a CDP in which the raypaths of several different shots reflect from the same subsurface location...

Hild East (North Sea, Norway): How Geosciences Integration Led to the Re-Birth of an Old Discovery; #20128 (2012)

Christian H. Mathieu, Rune Hope, and Louis Bruckert

Search and Discovery.com

... improvement in imaging/illumination of the objectives mainly because of a much higher Signal to Noise ratio brought by a very high fold and less noise...

Utilizing Seismic for Higher Definition of Geologic Prospects: 2-D, 2-D Swath, and 3-D Seismic

R. Randy Ray

Rocky Mountain Association of Geologists

... signal to noise ratio as a result of the data processing technique called stacking. A specific High-Definition Seismic Guidebook - 1995 Rocky Mountain...

Processing and Interpretation of 2-D Seismic Data from the Bighorn Basin, Wyoming

David J. Taylor

Wyoming Geological Association

... in performing gross structural interpretations. Low fold 2-D CDP seismic data have higher signal-to-noise ratio than single-fold data, which enhance the image...

ONSHORE APPLICATIONS OF 3-D SEISMIC TECHNOLOGY 3D DATA ACQUISITION

Tom Davis, Steve Roche, and Susie Mastoris

Fort Worth Geological Society

... estimation, accuracy of statistical processes and improvement of signal/noise ratio. The azimuthal distribution of the fold is important depending...

Qualitative and Quantitative Monitoring of Seismic Quality During Data-Processing for Future Seismic Reservoir Characterization Studies (Sisi-Nubi Field, Indonesia)

Rangga A. Brahmantio, Mikhail Baturin, Florent Bertini, Jean-Marie Jourdan

Indonesian Petroleum Association

... ratio can be assessed from the averaged amplitude spectra. The measured element of the noise is the normalized noise-to-signal ratio taken...

Value of elastic full-wavefield inversion in derisking clastic reservoirs in presence of noise

Partha Routh, Soumya Nayak, Jake Dorsett, Kaushik Banerji, Young Ho Cha, Vijay Gottumukkula, Gopal Palacharla, Vikas Gudipati, Ramesh (Neelsh) Neelamani, Seth Conway, Andrea Raphael

International Meeting for Applied Geoscience and Energy (IMAGE)

... reflection signals from the reservoir. If the noise systematically interferes with the signal, then such data can lead to erroneous predictions. We...

Geoscience Integration and Interpretive Model Building to Overcome Seismic Imaging Problems in Foothills Environments; #41547 (2015)

Rob Vestrum

Search and Discovery.com

... for time and depth migration. With low fold in the near surface, low signal-to-noise ratios on the image gathers, and complex horizon geometries...

Australia: Depth Reprocessing Rejuvenates Gippsland Basin

Peter Baillie, Paul Carter, Jarrad Grahame, Joe Zhou, Nigel Mudge, CGG

GEO ExPro Magazine

... such as poor subsequent mixed marginal marine to lower coastal plain signal-to-noise (S/N) ratio at low frequencies and limited depositional deposits...

Applications of Kirchhoff Least-Squares Migration: Towards Reservoir Imaging; #42183 (2018)

Francesco Perrone, Graham Roberts, Lorenzo Casasanta, Andrew Ratcliffe, Arash Jafargandomi, Karen Purcell

Search and Discovery.com

... signal-to-noise ratio and the standard migration artifacts introduced by Kirchhoff migration in the areas with more complex geology and in the presence...

THE APPLICATION OF HIGH RESOLUTION SEISMOLOGY TO THE DELINEATION OF FAULTING AND COAL SEAM THICKNESS: A CONTINUING CASE HISTORY

Anthony R. Wagner

North Dakota Geological Society

... as to improve the signal-to-noise ratio. Each trace is digitized and recorded separately on magnetic tape for later computer...

High-resolution near-surface land FWI across the Delaware basin fill zone

Terence Krishnasamy, James Sheng, Ronaldo Florendo, James Beck, Antonio Sierra, Sam Murphy, Jay Siebens, Yvonne Iwo-Brown

International Meeting for Applied Geoscience and Energy (IMAGE)

... associated with elastic effects, low signal to noise ratio (especially at lower frequencies), and irregularities in acquisition geometries. Specially designed...

Extended Abstract: An Integrated Approach to Exploration in ATP 299P

R. A. Cassie, B. Edwards, J. A. Salomon

Petroleum Exploration Society of Australia (PESA)

.... The reduction in trace smearing and increase in fold resulted in a higher/signal noise ratio and a greater frequency bandwidth. The 1990 Bingil Seismic...

Detailed Oriented Seismic Processing Leads to More Accurate Elastic Attribute Results in the Delaware Basin

Marianne Rauch-Davies, Steve Smith, Alyona Bashkirtseva Hall

Unconventional Resources Technology Conference (URTEC)

... the signal to noise ratio. Wide azimuth data were available and special attention was paid to preserving the azimuthal information. Noise is always present...

Characterizing Multiple Formations for Gas Production and CO2 Sequestration

Adriana Gordon, Bill Goodway, Evan Mutual, Raul Cova, Scott Leaney, Wendell Pardasie, Matt Ng

Unconventional Resources Technology Conference (URTEC)

... reflectivities and input seismic data simultaneously. Signal-to-noise (S/N) ratio volumes were calculated and used as weights to guide the inversion and avoid...

Magnetotelluric Investigation of the Pleistocene Nueces River Incised Valley, Mustang Island, Texas

Egon T. Weber, Richard Hay, James R. Garrison, Jr.

GCAGS Transactions

... the signal to noise ratio. For this survey, data were acquired during two days for a total of nine soundings in the study area at eight stations (Fig. 1). One...

BRAZOS 440-L FIELD OFFSHORE TEXAS

Richard F. Lane and Robert C. Pace

GCAGS Transactions

... hydrophone/geophone channeled system which is effective in attenuating water column reverberations and increasing signal-to-noise ratio. Figure 2...

Will Lebanon be the Next Oil Province?

Øystein Lie, Jörn Fürstenau, John Comstock, Petroleum Geo-Services

GEO ExPro Magazine

.... The dipscan process in the Beam PSDM gave a higher signal to noise ratio result than the conventional Kirchhoff PSDM. The Beam has an inherent noise...

West of Shetland: SHarp Broadband 2D Regional Well Tie Survey

Ian T. Edwards, Global Multi-Client Surveys and New Ventures

GEO ExPro Magazine

.... Lowering the noise floor improves the signal to noise ratio (S/N) and in itself thus allows a broader bandwidth to be achieved in the final image...

A Case Study of the Development of a Seismic Streamer for Use in the Timor Sea

P. Grant, J. Rasidi, I. Ward

Petroleum Exploration Society of Australia (PESA)

... effects, it is imperative to maximise the signal-to-noise ratio in acquisition. It was decided to tender for the highest technology available at that time...

A New Approach to Exploration

Aslak Myklebostad, PetroMarker

GEO ExPro Magazine

... concentrated by increasing the pulsing time on each location as required to optimise signal to noise ratio. The stationary approach also gives more freedom...