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The AAPG/Datapages Combined Publications Database

Showing 28,568 Results. Searched 200,357 documents.

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Background noise suppression for DAS-VSP data using attention-based deep image prior

Yang Cui, Umair bin Waheed, Yangkang Chen

International Meeting for Applied Geoscience and Energy (IMAGE)

... to remove the strong coherent and random noise in DAS-VSP data, which can be formulated as: Dobs = S + Nc + Nr , (1) where Dobs denotes the observed data...

2024

Recognition of Subtle Features in Geologic Maps

J. E. Robinson, D. F. Merriam

CSPG Special Publications

... together to form a stack in which the coherent signal is enhanced to that of random noise. A similar concept can be applied to geologic data. Should...

1980

Abstracts: Application of FX Singular Spectrum Analysis on Structural Data; #90173 (2015)

Alexander Falkovskiy, Elvis Floreani, Gerry Schlosser

Search and Discovery.com

... linear events of constant dips and random noise. Therefore, FX filtering does not work well when the dip varies within the filter width or when...

2015

Application of poststack image enhancement with dip-guided selective stacking in southern Gulf of Mexico

Janet Ravelo-Cervantes, Ricardo Francisco Castrejon-Martinez, Julio Cesar Hernandez-Villalobos, Raul Ysaccis, Said Hernandez-Jaramillo, Doan Saavedra-Castaneda

International Meeting for Applied Geoscience and Energy (IMAGE)

... that distinguish noise from signal by frequency and amplitude. However, the strong coherent residual noise in general had a dip almost perpendicular...

2022

Structural subdivision of channel sand bodies based on frequency division coherence and attribute fusion

Qian Yu, Jianli Wang, Huajing Chen, Heng Zhang, Lien Bian

International Meeting for Applied Geoscience and Energy (IMAGE)

... faults and channel boundaries by means of structural-steering filtering technology based on dip-control and frequency-division coherent technology...

2022

Abstracts: Seismic Attributes on Frequency-enhanced Seismic Data; #90173 (2015)

Satinder Chopra, Kurt J. Marfurt, Somanath Misra

Search and Discovery.com

... Arcis Corporation, Calgary, Canada Summary Seismic data are usually contaminated by both random and coherent noise, even when the data have been...

2015

How to Improve the Definition of Seismic Reflection Data

D. Michon, R. Garotta

Indonesian Petroleum Association

... enable him to evaluate the filtering effect of the noise - Fig. 1. Here is the amplitude response of a linear array of nine geophones. The horizontal...

1979

Abstract: Strong Noise … Removal and Replacement on Seismic Data; #90174 (2014)

Patrick Butler

Search and Discovery.com

..., prestack migration and other linear processes. The root n cancellation for Gaussian noise may just not be sufficient. To address this we created a nonlinear...

2014

Abstracts: FX Cadzow / SSA Random Noise Filter: Frequency Extension; #90173 (2015)

Alexander Falkovskiy, Elvis Floreani, Gerry Schlosser

Search and Discovery.com

.... In the example above, assuming that we have only one linear event and random noise, FE filtering means (1) find matrix M1 of rank r=1 nearest, in a least...

2015

Abstract: White Noise Suppression in the Time Domain … Part II; #90174 (2014)

Patrick Butler

Search and Discovery.com

... events have a "jitter" due to the high amplitude noise. Notice that where the section is too noisy, high dip events are created. This is actually...

2014

3D Seismic Data Conditioning to Enhance Fault Interpretation

Mohammad Nashruddin Solihulhadi, William Amelio Tolioe

Indonesian Petroleum Association

..., because seismic data contains a mixture of signal and noise. Structural interpretation can be improved by enhancing discontinuities in seismic data...

2007

Abstracts: Ground Roll Attenuation Using LWD; #90173 (2015)

Ken Kocon and M. Sacchi

Search and Discovery.com

... as an alternative to FK filtering. To be more specific, we discuss a parameterization of local operators in terms of dip and central frequency to remove low...

2015

Abstract: White Noise Suppression in the Time Domain … Part I; #90174 (2014)

Patrick Butler

Search and Discovery.com

... the program to use the first pass to remove it. In practice, a different algorithm (based on median filtering) removes this strong noise before we run...

2014

Seismic monitoring using compact phased arrays: CO2 sequestration monitoring

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

International Meeting for Applied Geoscience and Energy (IMAGE)

... of the three-dimensional array response and spatially-coherent processing (beamforming), the system optimally suppresses non-coherent noise while...

2022

Data processing experience with PP and PS imaging on SB-DAS: A North Sea case study

R. Bachrach, M. Wilk-Lopes, D. Brager, S. Sonika, C. Thorgersen, E.B. Raknes, Y. Ivanov

International Meeting for Applied Geoscience and Energy (IMAGE)

... coherent noise in both shot and receiver domains which targeted Scholte wave and other slower velocity noise. An additional dip filtering was applied...

2024

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

... production equipment. This noise consists of coherent and incoherent wave trains created by several thousand pumping wells, steam lines, steam generators...

2001

Application and Extension of Fine Fault Recognition Technology in Surrounding Area of Penglai 19-3 Oilfield, Bohai Bay Basin, Eastern China, #20436 (2018).

Xugang Ma, Donghong Zhou, Dingyou Lv, Dayong Guan, Hongguo Zhang

Search and Discovery.com

..., remove the interference noise in seismic section, so that the fault profile for easy identification.After the structure oriented filtering treatment...

2018

Enhance Seismic Quality With A Fast, Robust and Economic Solution Using Broadband Technology

Munji Syarif, Vania Iqsora, Adde Avrino, Agus Abdullah

Indonesian Petroleum Association

.... Broadband processing result shows better continuity, sharper events, preserving geology, higher frequency and lower coherent noise level. The frequency...

2020

Specialized processing of a massive distributed acoustic sensing (DAS) 3D VSP in a producing well

Ali Sayed, Francesca Twynam, Ran Bachrach, Philippe Caprioli, Marcus Holloway, Qingsong Li, Reetam Biswas, Daniel Tebo, Sam Buist

International Meeting for Applied Geoscience and Energy (IMAGE)

... by applying median filters in the frequency domain. DAS common noise manifests as coherent linear arrivals across the entire array at infinite...

2023

Field Technique Design for Seismic Reflection Exploration

L. R. Denham

Dallas Geological Society

...). Sometimes geophone and source patterns were designed by computing an array which, in theory, cancelled a measured type of coherent noise. Often field...

1982

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