Current and future multicomponent towed streamer design

Nicolas Goujon, Susanne Rentsch, Leendert Combee, Fabien Guizelin, Khairul Faizi Ahmad

Petroleum Exploration Society of Australia (PESA)

... and maximum frequency (under the same towing conditions) depends on the mechanical properties of the cable, and that they could be reduced by using a new...

Optimised 3D Land Geophysical Survey Design - A Case Study

P. van Baaren

Papua New Guinea (PNG) Petroleum Convention Proceedings

... the maximum trace spacing which will not alias in migration, V the velocity (interval at the target or average velocity), fm the ax maximum frequency...

Higher Trace Density Recording for Foothills 3D Surveys

R. Malcolm Lansley

Search and Discovery.com

... density recording are two-fold: first, finer spatial sampling (i.e. smaller bin size) that reduces the liklihood of aliasing either steeply dipping...

Higher Trace Density Recording for Foothills 3D Surveys

R. Malcolm Lansley

Search and Discovery.com

... density recording are two-fold: first, finer spatial sampling (i.e. smaller bin size) that reduces the liklihood of aliasing either steeply dipping...

Extending the Resolution of Seismic Reflection Exploration

L. R. Denham

Pacific Section of AAPG

...–such as wavelet processing and attribute analysis– have made it possible for us to use amplitude, phase, velocity, and frequency information...

Delineating Fractures from Seismic Attributes; #110124 (2010)

Satinder Chopra, Kurt J. Marfurt

Search and Discovery.com

... • Obstacles such as lakes, villages, or platforms • Currents and tides Problems due to processing • Incorrect velocities • Migration operator aliasing...

Enhancing Pre-Stack Seismic Inversion Using Neural Networks for Clastic Reservoir Characterization … Simian Field, Offshore Nile Delta, Egypt; #20413 (2018)

Wael Said, Islam A. Mohamed, Ahmed Ali

Search and Discovery.com

..., and filtering the log data to the seismic frequency range (high pass 120 Hz and high cut 130 Hz) so that aliasing is avoided when down-sampling log data...

Seismic Data Acquisition and Processing in the Midway-Sunset Oil Field

C. R. Willingham, A. S. Wylie Jr., D. J. Underwood

Pacific Section of AAPG

... of the spacing between the groups. To retain the effectiveness and prevent aliasing of returns from dipping structure, the arrays, in these areas, were...

A Comparative Study of 3-D Noise Attenuation Techniques

Daniel Wheaton, Yendri, Kusnarya

Indonesian Petroleum Association

... and coherent noise are studied. Predictive filtering in the f-x (frequency - space) domain for random noise suppression may be applied post stack as either...

Section Five: Use of Gravity Methods on Diapiric Structures

New Orleans Geological Society

... aliasing (distortion due to sampling frequency) of the data. Once station spacing has been determined, the entire survey should be metered on a square...

Post Migration Processing of Seismic Data

Dashuki Mohd.

Geological Society of Malaysia (GSM)

.... As seismic energy propagates through the earth, it experienc~s ~arious changes in frequency and phase characterIstIcs due to variations in the subsurface...

Gravity's Role in a Modern Exploration Program

Gene Greene

Houston Geological Society Bulletin

... of the entire survey. At least two samples per wavelength are needed to prevent aliasing and adequately define an anomaly. Once the station spacing has...

Comprehensive Use of VSP Technology at Elk Hills Field, Kern County, California, by R.J. Brewer and Don Greenfield, #40091 (2003).

Search and Discovery.com

Interpretation of Airborne Magnetic Data of Upper Benue Trough, Northeastern Nigeria, #10888 (2016).

Omeje Maxwell, E.S Joel, lusegun Adewoyin, O. Meludu, O. Meludu

Search and Discovery.com

... are much wider than 2 km and therefore lie in a frequency range from aliasing which do not occur with a 1 km digitizing grid. Having digitized each...

The contribution of recent developments in signal processing technology and geological constraints to the reimaging of narrow-azimuth streamer data in the north-eastern Gulf of Mexico

Hongyan Li, Jarred Hostetler, Nadxieli De La Rosa Perez, Hugo Enrique Munoz Cuenca, Zhao Ge, Wilson Ibanez, Courtney Steichen, Ruoyu Gu, Jarrod Hutson, Michiru Tomida

International Meeting for Applied Geoscience and Energy (IMAGE)

... strong interfering events from the other vessel, beyond aliasing limitations. Adaptive noise attenuation and adaptive deghosting were able to improve...

Long Climatic Time Series from Sediment Physical Property Measurements

Timothy D. Herbert, Larry A. Mayer

Journal of Sedimentary Research (SEPM)

... term evolution of climate in the Milankovitch frequency band, as well as to reconstruct patterns of carbonate sedimentation over time. Sedimentation...

Abstract: Case Study- High Resolution Velocity Model Building to Improve Carbonate Reefs Image in Tz Area; #91204 (2023)

Hongjun Zhang, Yang Chen, Zhengzheng Zhou, Xiang Li, Hotma Yusuf, Haryono Haryanto, Farid Dasa Marianto

Search and Discovery.com

... to prevent from time frequency dispersion and aliasing due to insufficient sampling during time differencing to guarantee the resolution of inversion...

Unconventional Processing for 3D Data: A 1993 Case History

Claude Eizlini, Jacques Bonnafe, Bugi Kamil, Gilles Bitoun

Indonesian Petroleum Association

... a quick glance at typical data without statics will show some acceptably fair reflections albeit with a very narrow frequency band. The experience...

Three Dimensional Exploration in California — A Case History

E. T. Selby

Indonesian Petroleum Association

... is that, to prevent aliasing, there must be at least two samples within the period of the highest frequency to be defined. The requirements for non-aliased space...

Land 3D Acquisition Techniques Related to S.E. Asian Situation

Walter Ritchie

Indonesian Petroleum Association

... Acquisition Project Design Simple geometric relationships and sampling theory establish subsurface (and surface) spacing based on known dip, frequency...

Geostatistical Integration of Crosswell Data for Carbonate Reservoir Modeling, Mcelroy Field, Texas

William M. Bashore, Robert T. Langan, Karla E. Tucker, Paul J. Griffith

Special Publications of SEPM

... the Grayburg Formation. CROSSWELL DATA ACQUISITION The data were collected using a swept-frequency , piezoelectric source and a seven-level hydrophone...

Chapter One: Introduction to AAPG Memoir 42/SEG Investigations in Geophysics, No. 9, 7th Ed.

Alistair R. Brown

AAPG Special Volumes

.... The interpreter must consider data quality, frequency content, resolution, data phase, and data polarity, and must learn as much as possible about the data...

The Wave Equation Applied to Migration

D. Loewenthal, L. Lu, R. Roberson, J. Sherwood

Southeast Asia Petroleum Exploration Society (SEAPEX)

... low cut, 30 Hz high cut) in order to avoid any drastic aliasing problems during the migration procedure. The model parameters were a constant...

Recent Advances in Borehole Seismic

W. L. Nutt

Indonesian Petroleum Association

... seismic frequency bandwidth. The calibrated sonic log so obtained can be used in conjunction with the density log to produce a synthetic seismogram. Careful...

Squeezing Every Last Drop Out of a Coarse 3D Oil Sands Dataset for Refining 3D Survey Design … A Case History; #41500 (2014)

Sylvestre Charles, Jim Hostetler, Jiwu Lin, Xiaoming Luo

Search and Discovery.com

... at the Devonian unconformity it is about 23 traces per bin. Assuming an average velocity of 2200m/s, for this bin size the maximum un-aliased frequency...