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The AAPG/Datapages Combined Publications Database

Showing 18,833 Results. Searched 200,616 documents.

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Post Migration Processing of Seismic Data

Dashuki Mohd.

Geological Society of Malaysia (GSM)

... is the radian frequency, w = 21tf. Applying a phase shift filter with a phase spectrum of -(J(w) will result in a zero phase wavelet, W(w) = H(w) = WO(w...

1994

Abstract: Towards Using Harmonic NoiseŽ to Image Shallow Thin Reflectors; #90187 (2014)

Christopher B. Harrison, Gary Margrave, Michael Lamoureux, Art Siewert, Andrew Barrett, and Helen Isaac

Search and Discovery.com

... the complex-valued time-frequency spectrum produced by the Gabor transform. The first method is time-dependent Gabor decomposition (TDGD), which decomposes...

2014

De-risking the Barents Sea

Kim Gunn Maver, Anongporn Intawong, Howard Nicholls, Andrea Klubicka, Spectrum, ORG Geophysical

GEO ExPro Magazine

...De-risking the Barents Sea Kim Gunn Maver, Anongporn Intawong, Howard Nicholls, Andrea Klubicka, Spectrum, ORG Geophysical De-risking the Barents Sea...

2015

Enhanced depth imaging for subsurface faults, fracture and karst: Application in Malaysian carbonate field

Yasir Bashir, Deva Prasad Ghosh, Seyed Yaser Moussavi Alashloo, Amir Babasafari, Chow Weng Sum

Geological Society of Malaysia (GSM)

... spectrum in Figure 3. However, an enhancement in the amplitude of lower frequencies 0-5 Hz and higher frequency from 15-60 Hz data is preserved...

2018

Abstract: Why Is High Resolution Aeromagnetic (HRAM) Data Better For Exploration Purposes Than The Magnetic Data Available From The GSC?; #90213 (2015)

Hassan H. Hassan

Search and Discovery.com

... that the GSC data becomes noisier and has less resolving power as we move towards the high-frequency low wavelength end of the spectrum (i.e., 1.2 4.8 km...

2015

Water in Skeletal Carbonates

Susan J. Gaffey

Journal of Sedimentary Research (SEPM)

... absorption spectrum of liquid water: Jour. Optical Soc. America, v. 41, p. 302-304. DEER, W. A., HOWIE, R. A., AND ZUSSMAN, J., 1962, Rock-Forming Minerals...

1988

Combined AVO and Spectral Decomposition Analyses to Characterize Gas Sand Reservoir Below Tuning Thickness Condition

Julian Saputro, Jaenudin, Alexis Badai Samudra, Enik Puji Lestari, Sugiono, Aldis Ramadhan, Yosi Hirosiadi

Indonesian Petroleum Association

... I) with lateral reservoir distribution is described by spectral decomposition analysis (15 Hz frequency slice). INTRODUCTION AVO techniques had been...

2016

Abstract: Simple Wavefield Modelling to Evaluate the Low Frequency Artifacts in Reverse-Time Migration; #90224 (2015)

John C. Bancroft

Search and Discovery.com

...) FIG. 1 An example of a) low frequency noise contamination, and b) after a low pass filter was applied, and c) the amplitude spectrum of the filter...

2015

Long Period Long Duration Seismic Events During Hydraulic Stimulation of a Shale Gas Reservoir, #40761 (2011)

Indrajit Das, Mark D. Zoback,

Search and Discovery.com

... Spectrum of LPLD events, Micro-earthquake and Noise. LPLD events are deficient in high frequency energy relative to micro-earthquakes and enriched...

2011

The Developing Role of Analysis in the Design of Floating Production Systems

D. B. Melver, D. Cash

Indonesian Petroleum Association

... of the resulting response spectrum is shown pictorally in Figure 8d using a frequency domain solution. Frequency domain solutions give a good...

1985

Structural Evolution Using Seismic Low Frequency Magnitude Approach: A Case Study on Defining Strike-Slip Development in West Natuna Basin, Indonesia

Putri Riadini, Oki Rizaldi, Anwarsyah B. Ritonga, Abdurahman, Budiyono

Indonesian Petroleum Association

... that is difficult to see when all these frequencies are stacked together. The seismic frequency spectrum was analyzed on Syn-Rift-2 sand (Lower Gabus...

2020

Simultaneous source wide azimuth seismic acquisition using low frequency Gemini source in eastern Mediterranean Sea

Shangli Ou, Shelley Zaragoza, Zachary Lawrence, Lindsey Donaldson, Chris Tapie, Kim Begay-Jackson, Brian deMartin, Ares Ouzounis, Jie Shu, Luigi Pastore, Gita Febriany

International Meeting for Applied Geoscience and Energy (IMAGE)

... is dominanted by low frequency noises in prestack data, a fair spectrum analysis has to be conducted on post-stack data after denoise, as shown in Figure 5...

2023

Anti-aliasing seismic data interpolation by dip-informed self-supervised learning

Shirui Wang, Xuqing Wu, Jiefu Chen

International Meeting for Applied Geoscience and Energy (IMAGE)

... high-frequency seismic components become entwined with their low-frequency counterparts, creating artifacts that hinder subsequent processing...

2023

Applications of Broadband Land Seismology; #70253 (2017)

Zhang Ruijie

Search and Discovery.com

... the resolution of seismic data and inversion quality. The broadband vibrator, LFV3 that enhances low frequency energy from 3Hz, has been developed...

2017

Application of transfer learning and multi-scale feature fusion in intelligent suppression of seismic random noise

Xin Xu, Wuyang Yang, Xinjian Wei, Haishan Li, Nang Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

.... To visually demonstrate the effectiveness of the method in this article, the frequency-wavenumber spectrum in the inline direction was calculated...

2024

Abstract: Do You Have a Moment: the Importance of Instrumentation in Moment Magnitude Estimation; #90224 (2015)

W. Greig and N. Spriggs

Search and Discovery.com

... to a nominal criterion defined below. Estimating moment magnitude depends on imaging the flat, low frequency portion of the Brune displacement spectrum...

2015

Effective Delivery of Reservoir Compliant Seismic Data Processing; #42158 (2017)

Arash JafarGandomi, Henning Hoeber, Celine Lacombe, Vimol Souvannavong

Search and Discovery.com

... have exponential trends, and the reflectivity spectrum is proportional to the impedance spectrum multiplied by πf (Lancaster and Connolly, 2007...

2017

Testing Periodicity of Depositional Cyclicity, Cisco Group (Virgilian and Wolfcampian), Texas

Wan Yang , Michelle A. Kominz

Journal of Sedimentary Research (SEPM)

..., High-frequency, glacio-eustatic cyclicity in the Middle Pennsylvanian of the Paradox Basin: an evaluation of Milankovitch forcing, in de Boer, P.L....

1999

Cyclostratigraphy and Chronology of the Albian Stage (Piobbico Core, Italy)

Alessandro Grippo, Alfred G. Fischer, Linda A. Hinnov, Timothy D. Herbert, Isabella Premoli Silva

Special Publications of SEPM

...), organic hyperproduction or from exceptional preservation of orthe spectrum for the full series. The frequency modes of the ganic carbon. de Boer (1982...

2004

Abstract: Integration of Well Logs and Seismic Data for Prediction of Elastic Properties in a Heavy Oil Sand Reservoir: Manitou Lake, Saskatchewan; #90171 (2013)

Maria F. Quijada and Robert R. Stewart

Search and Discovery.com

... increases significantly from 800 to 1300 m/s. Post-stack inversion results show the importance of the frequency bandwidth of the data, with the PS...

2013

The Latemar high-frequency cycles revisited

Arndt Peterhansel, Sven O. Egenhoff, Thilo Bechstadt

CSPG Special Publications

...The Latemar high-frequency cycles revisited Arndt Peterhansel, Sven O. Egenhoff, Thilo Bechstadt 1997 219 219...

1997

Application of deghosting method based on Greens theorem in reservoir description of Bohai Bay

Shaoxuan Li, Jiangfeng Zheng, Lei Gao, Zhiping Zhao

International Meeting for Applied Geoscience and Energy (IMAGE)

... is obviously removed. The frequency band width of seismic data spectrum has been well expanded, especially the low-frequency component has been compensated...

2022

Woods Hole Rapid Sediment Analyzer

John M. Zeigler, Geoffrey G. Whitney, Jr., Carlyle R. Hayes

Journal of Sedimentary Research (SEPM)

... shape is described. APPEL, D. W., 1953, An instrument for rapid size-frequency analysis of sediment: unpublished Ph. D. thesis, State University...

1960

Seismic Stratigraphy Via Attribute Analysis, Brooks County, Texas

Robert V. Schneider

GCAGS Transactions

... with some imaging interference (Fig. 2A). No attempt was made to improve the signal-to-noise (S/N) value, the frequency content, or the pre-stack processing...

2021

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