Stop Treating Diffractions as Noise … Use them for Imaging of Fractures and Karst; #120057 (2012)

Mark Grasmueck, Tijmen Jan Moser, and Michael A. Pelissier

Search and Discovery.com

...Stop Treating Diffractions as Noise … Use them for Imaging of Fractures and Karst; #120057 (2012) Mark Grasmueck, Tijmen Jan Moser, and Michael...

Synthetic Stratigraphy with a Stochastic Diffusion Model of Fluvial Sedimentation

Jon D. Pelletier, Donald L. Turcotte

Journal of Sedimentary Research (SEPM)

..., Cyclicity or chaos? Orbital forcing versus non-linear dynamics, in De Boer, P.L., and Smith, D.L., eds., Orbital Forcing and Cyclic Sequences: Cambridge...

Hearing Conservation Program at CPI

Darmansjah Nuch, Kamaluddin Bakar, Jusuf Bakri

Indonesian Petroleum Association

... by "Excessive Noise" that may exist in their working environment. The objective of this paper is to study the prevalence of "Noise Induced Hearing Loss...

Combined Diving Wave Refraction Tomography and Reflection Tomography for PSDM Velocity Model Building (Bekapai Field, Indonesia)

Andi Kusuma, Florent Bertini, Jacques Bonnafe, Artem Sazykin, Swee Leng Ng

Indonesian Petroleum Association

.... They absorb strongly the seismic energy and lower significantly the signal to noise ratio. Building a reliable velocity model in such areas with short...

Abstract: Bridging the Information Gap: Qualitative Fracture Prediction from Seismic Data, by Peter O. Thierer, H. Trappe, H. Endres, T. Lohr, C.M. Krawczyk, O. Oncken, D.C. Tanner, and P.A. Kukla; #90072 (2007)

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Least-squares reverse-time migration with angle gathers through point spread functions

Jianyong Bai, Orhan Yilmaz

International Meeting for Applied Geoscience and Energy (IMAGE)

... the effects of coherent noise in the data (e.g., multiples or converted waves) that is not modeled and is therefore not consistent with the assumptions...

Salt Delineation Using Vector Offset Output (VOO) of Full Azimuth Data

Yogesh Agnihotri, Qiaofeng Wu, Dekang Xu

GCAGS Transactions

... offset output (VOO) is often used for post-migration image enhancement in complex subsalt areas to reduce the coherent noise in the data and improve...

Seismic inversion with implicit neural representations

Juan Romero, Wolfgang Heidrich, Nick Luiken, Matteo Ravasi

International Meeting for Applied Geoscience and Energy (IMAGE)

.... Rudin, L. I., S. Osher, and E. Fatemi, 1992, Nonlinear total variation based noise removal algorithms: Physica D: Non-linear Phenomena, 60, 259– 268...

Abstract: Time Domain Localized Interpolation of Pre-Stack 3D Seismic Data with Dip Scan in 5D Space; #90187 (2014)

Xishuo Wang, Jim Laing, and Robert Pinnegar

Search and Discovery.com

... dip scan The linear nature of a plane in 5D as defined by time move-out correction (eqn.2) suggests that it only works in a small neighborhood...

Estimation of Reservoir Fluid Saturation from 4D Seismic Data: Effects of Noise on Seismic Amplitude and Impedance Attributes

Rafael Souza, David Lumley, Jeffrey Shragge

Petroleum Exploration Society of Australia (PESA)

... as a function of noise levels. We observe a linear trend proportional to saturation as well as a scattering of RC due to the heterogeneity of reservoir...

Advanced Approach Toward Understanding Geologically Complex Area Using MDRS (Multi-Dip CRS): A Case Study

Naoshi Aoki, Shogo Narahara, Akihisa Takahashi, Tsukasa Nishiki

Indonesian Petroleum Association

... by the CRS method but coherent noise is also boosted in 2 sec around a distance of 8 km. Conflicting Dip Problem Conventional stacking methods can not depict...

Increasing signal-to-noise ratio of borehole image logs using convolutional neural networks

Mustafa A. Al Ibrahim, Mokhles M. Mezghani

International Meeting for Applied Geoscience and Energy (IMAGE)

..., to construct training data without adding noise or postprocessing (frequency-based filtering), multiple realizations of the noisy borehole image logs...

A "Limited" 3-D Experience in the D-J Basin, Weld County, Colorado

Cliff Clark, Tom Birmingham, Kevin Revels

Rocky Mountain Association of Geologists

... economical approach to remove the residual noise. 10. Digital Frequency Filtering. Final filter was 10-100 Hz. 11. Two passes of velocity analysis were...

Joint Downhole and Surface Microseismic Processing Using 3C Template Relative Migration

T. Bardainne, L. Delmas, N. Belayouni, D. Katz, P.-F. Roux

Unconventional Resources Technology Conference (URTEC)

..., it is limited in sensitivity by ambient noise and higher attenuation. These two techniques are complementary; by jointly processing the arrays...

Prospectivity of volcanic basins: Trap delineation and acreage de-risking

Max Rohrman

AAPG Bulletin

.... The effect is low-frequency pass filtering through a stack of basalt (Maresh and White, 2005). An early attempt (1980s) to seismically image below flood...

Quantifying Confidence in Horizon-Picking, by Thang Ha and Kurt J. Marfurt; #41405 (2014).

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ABSTRACT Northwest Frontier Revisited: Newly Defined Rift Features Offshore Mauritania Senegal and the Guineas of NW Africa, #90104 (2010)

Dickson William; Odegard Mark E. DIGs

Search and Discovery.com

... original eight dip profile models suggested correlative blocks of near‐vertical injected intra‐ basement volcanics but due to noise and data sampling...

New Data Reveals Sub-Salt Levantine Basin

Øystein Lie, Per Helge Semb

GEO ExPro Magazine

... hydrophone data and the upgoing pressure field (P-up) showed in general a higher signal-to-noise ratio and better resolution of the P-up image...

Gravity and Magnetic Studies of the Wind River Reservation, Wyoming

Robert P. Kucks

Wyoming Geological Association

... of Geologists, p. 9-32. Hildenbrand, T.G., 1983, FFTFIL—a filtering program based on two-dimensional Fourier analysis on geophysical data: U.S....

Seismic applications of the Radon transform and a new second-order traveltime local transform

Ehsan Soleymani, Mauricio Sacchi

International Meeting for Applied Geoscience and Energy (IMAGE)

... transforms play an essential role in seismic data processing. They have been extensively used to separate signals from coherent noise, reconstruct seismic...

Automated processing development at a CO2 site: Phase detection, location, magnitude

Jian Zhang, Kevin D. Hutchenson, Elige B. Grant, Paul A. Nyffenegger, Mark A. Tinker

International Meeting for Applied Geoscience and Energy (IMAGE)

... site-specific geophysical information and an understanding of the expected seismic signals. Optimally oriented beams suppress non-coherent noise as well...

Populations, Trends, and Cycles in Combined-Flow Bedforms

Indranil Banerjee

Journal of Sedimentary Research (SEPM)

...) bedforms. Statistical tests also reveal an upward linear increase and a 16-bed cyclicity in L. The linear trend is interpreted here as a "proximality trend...

Abstract: To TTI or not to TTI? Semi-Automated 3D Tomographic Velocity Analysis in the Canadian Foothills: A Case History; #90211 (2015)

Sylvestre Charles, David Mitchell, Rob Holt, Jiwu Lin, and John Mathewson

Search and Discovery.com

... varies spatially within the 3D volume. Defining variable anisotropic parameters via scanning is very difficult in areas with significantly varying dip...

Prospect Investigation and De-Risking Using Cognitive Interpretation Workflows, Offshore Equatorial Guinea, #30507 (2017).

Tom Wooltorton, Stephen Leslie, Merritt Smith, Rachael A. Moore

Search and Discovery.com

... to investigate subtle, low relief faults that may provide a trapping mechanism. Inflections in structural dip were identified which may indicate the presence...

GCMultispectral Coherence Attribute Applications, #42258 (2018).

Satinder Chopra, Kurt J. Marfurt

Search and Discovery.com

..., phase and waveform, and thus have different sensitivities to geology, spectral bandwidth and seismic noise. For coherence computation, first an analysis...