Nacred: Looking for the Mother Lode of the Pearl River Mouth Basin

William Dickson, James Granath, Mark Odegard, Janice Christ

Southeast Asia Petroleum Exploration Society (SEAPEX)

... and y, although at this size, spatial aliasing is expected (Fig. 3). Fields in the Zhu I and Zhu III basins correlate to gravity features of dimensions...

Post Migration Processing of Seismic Data

Dashuki Mohd.

Geological Society of Malaysia (GSM)

..., multiples, aliasing, and gas chimney effect. PROCESSING SCHEME Seismic sections with high vertical and lateral resolution are very essential to interpreters...

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...

2012 Update of Southern Mid-Continent Theses and Dissertations

Neil H. Suneson

Oklahoma City Geological Society

...-Vargas, Alejandro, 2011, Suppression of aliasing artifacts on 3D land data via constrained least-squares migration. MS. Cataldo, Ernesto D., 2011...

Deep learning-based Vz-noise attenuation for OBS data

Jing Sun, Arash Jafargandomi, Julian Holden

International Meeting for Applied Geoscience and Energy (IMAGE)

...., 2021). The key challenge for the shot-domain approaches is data aliasing due to poor spatial sampling, and in the receiver-domain is the overlap between...

Deep learning approach for denoising and resolution enhancement of poststack seismic data

Ruslan Malikov, Tatyana Yusubova, Izat Shahsenov

International Meeting for Applied Geoscience and Energy (IMAGE)

... post-pressing steeply dipping linear noise/aliasing, concentrated along the continuous true reflectors or residuals from demultiple stage. While minor...

3D seismic modelling fast adaptability in the face of operational constraints „ A case study

Clemence Cuvilliez, Aline Robin, Veronique Duprat, Camille Le Magoarou, Bruno Pagliccia, Severin Rubio, Enrico Zamboni

International Meeting for Applied Geoscience and Energy (IMAGE)

... in the case of “MON2500” (yellow dashed rectangles); 2. the noise in the near offsets most likely linked to aliasing and to the low number of traces...

Multi-Azimuth Seismic

Andrew Long

Petroleum Exploration Society of Australia (PESA)

... sampled in all directions without aliasing as it encounters the surface 3. Efficiency must be as high as possible in the field Unfortunately, ta...

Simultaneous Sources: The Inaugural Full-Field, Marine Seismic Case History from Australia (Paper A2)

I. Moore, D. Monk, L. Hansen, C. Beasley

Geological Society of Malaysia (GSM)

... to reduce the shot interval for each pass, thereby reducing aliasing effects or improving efficiency by reducing the number of passes that are required...

Overview of Exploration Geophysics: Recent Breakthroughs and Challenging New Problems: Hydrocarbons

B. S. Flowers

AAPG Special Volumes

... and processing are difficult, and the acquisition of cross-line information must be sufficient not only to measure cross-line dips and to prevent aliasing...

Overview of Exploration Geophysics--Recent Breakthroughs and Challenging New Problems

B. S. Flowers

AAPG Bulletin

... and processing are difficult and the acquisition of cross-line information must be sufficient not only to measure cross-line dips and to prevent aliasing...

Frequency-Domain Waveform Tomography in the Foothills: Velocity Model Estimation with Synthetic Long-Offset Data

Search and Discovery.com

... method (Pratt, 1999), from 0.083 Hz to 16 Hz. Complex frequencies were used to reduce temporal aliasing, and the resulting frequencydomain data were...

Abstract: A Faster, More Accurate Gaussian Simulation; #90172 (2014)

Colin Daly, Sandra Quental, Darcy Novak

Search and Discovery.com

... to aliasing. This can be improved by simulating on a larger volume by padding the data, then ‘cutting out’ the region of interest. The factor of simulation...

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

Volumetric Curvature Attributes for Mapping Faults, Fractures, Depositional and Diagenetic Features

Satinder Chopra and Kurt J. Marfurt

Search and Discovery.com

... and tides Problems due to processing • Incorrect velocities • Migration operator aliasing Footprint removal (a) (b) Low (c) High (d) Time slices...

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...

Re-Evaluation of Hydrocarbon Potentials of Eastern Part of the Chad Basin, Nigeria: An Aeromagnetic Approach, #10405 (2012)

Emmanuel Anakwuba, Augustine Chinwuko

Search and Discovery.com

... in minimizing aliasing effects in sampled data (Bath, 1974). A grid interval of 1 km was used to obtain a 165 x 165 data-point grid. The gridded data...

A Review of Hydrocarbon Prospects in the Lower Benue Trough, Nigeria: Another Insight from Potential Field Study; #20194 (2013)

L. N. Onuba, A. G. Onwuemesi, B. C. Egboka, G. K. Anudu, and A. Omali

Search and Discovery.com

... to avoid error due to aliasing effects. The total magnetic intensity map was generated by gridding the digitized data using minimum curvature technique...

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...

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...

Three Dimensional Exploration in California — A Case History

E. T. Selby

Indonesian Petroleum Association

... be sufficiently small to prevent spatial aliasing and this implies that the three dimensional survey must provide data with a line spacing which is of the same...

PWD-PINN: Slope-assisted seismic interpolation with physics-informed neural networks

Francesco Brandolin, Matteo Ravasi, Tariq Alkhalifah

International Meeting for Applied Geoscience and Energy (IMAGE)

... of regularly subsampled data (beyond aliasing) and data with large gaps, due for example to obstacles in the area of acquisition. THEORY Seismic data...

Aspects to the Resolving Power of 3D Seismic Surveys

Wolfgang Houba

Geological Society of Malaysia (GSM)

... to an optimum velocity field determination for stacking and migration. RESOLVING POWER OF 3D SEISMIC SURVEYS 39 Spatial aliasing and migration...

Self-supervised learning for seismic swell noise removal

Yuan Zi, Shirui Wang, Pengyu Yuan, Xuqing Wu, Jiefu Chen, Zhu Han

International Meeting for Applied Geoscience and Energy (IMAGE)

...m back and combining these two feature maps. Automatic Anti-Aliasing Spectrum Suppression The blind-trace neural network prevents identity mappin...

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

Walter Ritchie

Indonesian Petroleum Association

... and velocity requirements (Fig. 25) although consideration must also be given to "migration aliasing" effects especially is areas of slow velocity...