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The AAPG/Datapages Combined Publications Database
Showing 68 Results. Searched 196,371 documents.
A New Seismic Method to Significantly Improve Deeper Data Character and Interpretability
Andrew Long, Guillaume Cambois, Gregg Parkes, Anders Mattsson, Terje Lundsten, Mazin Farouki
Indonesian Petroleum Association
... acquisition has been tested in the southern Browse Basin during 2008 in an effort to remove both source ghost and receiver ghost effects from towed streamer...
2009
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)
...requency signal and removing the source ghost from the data without introducing ringing or over-amplifying the low frequency noise (Figure 4). A combi...
2023
Abstract: Physical Modeling for Azimuthal AVO Over a Simulated Fractured Medium; #90174 (2014)
Faranak Mahmoudian, Gary F. Margrave, and Joe Wong
Search and Discovery.com
... the overlapping of the primary and ghost events. The picked reflection amplitudes required corrections to make them suitable for an AVAZ study. In addition...
2014
Broadband Seismic Technology and Beyond: Part VIII: BroadSeis in Exploration
Lasse Amundsen, Martin Landrø, Vetle Vinje, Jo Firth
GEO ExPro Magazine
... in the shallow detail and in the fractured basement. Ghost-Free Data As discussed in GEO ExPro, Vol. 11, No.1, BroadSource is a synchronized source with two gun...
2014
How Can We Reduce the Environmental Impact of Marine Seismic Surveys?
Andrew Long, Mickael Bastard, Endrias Asgedom, Jens Fredrik Wisløff, Magnus Christiansen
Australian Petroleum Production & Exploration Association (APPEA) Journal
..., three-dimensional variation that varies as a function of source emission azimuth and angle measured from vertical (the ‘source directivity...
2019
Marine Seismic Sources: Part II: Air-Gun Arrays for Non Experts
Lasse Amundsen, Martin Landrø
GEO ExPro Magazine
... are caused by the source ghost. Note that the primary-to-bubble ratio is frequency dependent. source directivity In seismic surveying, air-gun arrays...
2010
Modern Marine 3D Seismic Acquisition - Technical Considerations
Chris Walker
Petroleum Exploration Society of Australia (PESA)
.... The resultant information is plotted in a polar form, similar to that used for displaying the directivity response of the seismic source and a typical...
1997
Direction of Crustal Movements Indicated by Earthquake Data: ABSTRACT
William Stauder
AAPG Bulletin
... of other methods, including the use of S waves and the application of surface waves in determining the directivity, dimensions, and initial phase...
1965
Value of marine vibrators for effective frequency-dependent spatial sampling of seismic wavefield
Arash JafarGandomi, Aparajita Nath, Sergio Grion
International Meeting for Applied Geoscience and Energy (IMAGE)
... that maximizes constructive source ghost interference and minimizes rough-sea effects (JafarGandomi et al., 2020). The use of diverse frequency bands...
2023
Seismic Frequency Bandwidth Constraints in Deepwater Locations
Andrew Long, Iain Buchan
Indonesian Petroleum Association
..., 3/12 – 206/276 filter settings (Hz/dB per octave), 2 ms sample rate 28° C water temperature Note that any source or receiver directivity effects...
2004
Abstract: Experimentally Achieving Borehole Radar Antenna Directivity in the Time Domain in the Presence of Strong Mutual Coupling, by Declan Vogt and Teboho Nyareli; #90082 (2008)
Search and Discovery.com
2008
Abstract: Is Magnitude the Parameter of Choice for Induced Seismicity Regulations?;
Alexandros Savvaidis, Pierre-Francois Roux, Florentia Kavoura
Search and Discovery.com
..., peak ground motion is critically controlled by parameters such as but not limited to site condition, source directivity, distance, and source...
Unknown
ABSTRACT: Restoring High Resolution in Surface Seismic Data; #90051 (2006)
Khalid Alrufaii, Kangan Fang
Search and Discovery.com
... exploration and development efforts. The resolution of seismic data is affected by many factors such as acquisition layout, strength and directivity...
Unknown
Land Seismic Source Study: ABSTRACT
William A. Schneider
AAPG Bulletin
... spectra, source repeatability, source directivity, and intensity levels from downhole measurements, (2) comparison of surface-wave noise-generation...
1982
3D installation of fiber cables for acquiring 3C DAS array data
Yingping Li, David Li, Lianjie Huang, Yingcai Zheng
International Meeting for Applied Geoscience and Energy (IMAGE)
... directivity. Since a source azimuth and incident angle can be determined by the DAS CCC array, we can correct for the effects of fiber directivity...
2023
High-resolution imaging using least-squares migration in the image domain (LSMi) for a marine distributed acoustic sensing (DAS) 3D-VSP
Ali Sayed, Francesca Twynam, Ran Bachrach, Maud Cavalca, Leo Leon, Maria Shadrina, Qingsong Li, Reetam Biswas, Daniel Tebo, Sam Buist
International Meeting for Applied Geoscience and Energy (IMAGE)
... in conjunction with the OBN survey. A single vessel with two source arrays of 5110 cu in volume each, was shot in flip-flop fashion. The maximum surface...
2023
Amplitude Versus Offset (AVO) Analysis: Part 7. Geophysical Methods
Allan T. Long, R. C. Anderson
AAPG Special Volumes
.... These corrections are distributed among the surface terms of source, receiver, and offset, plus a single subsurface (CDP or geological) term...
1992
Abstract: Aspects of the Quaternary Geology of the San Fernando Valley, California, by J. C. Tinsley III; #90904 (2001)
Search and Discovery.com
2001
Restoring High Resolution in Surface Seismic Data
Search and Discovery.com
N/A
Anisotropy analysis from 3D VSP surveys acquired at Otway site
Sofya Popik, Andrej Bona, Roman Pevzner
Petroleum Exploration Society of Australia (PESA)
... as a source. Seismic image significantly depends on the quality of velocity model used for imaging. In cases when anisotropy is present, its effect cannot...
2019
A Sound Exposure Level (SEL) Study for a 3D Seismic Survey off the WA Coastline, Browse Basin
Andrew S. Long, Jens F. Wisløff, Jaafar Ali, Averrouz Mostavan, David Hedgeland, Alec J. Duncan, Amos L. Maggi, Jeremy Colman
Petroleum Exploration Society of Australia (PESA)
... Statement 2.1 gives specific guidelines regarding acceptable 12300 Sound Exposure Levels (SEL) vs distance thresholds from a seismic source location...
2011
ABSTRACT: THERMAL EVOLUTION OF ORGANIC MATTER AND SECONDARY HYDROCARBON GENERATION FROM UPPER PALEOZOIC COAL MEASURES IN HUABEI AREA
Liquan Zheng, Xianqing Li, Ningning Zhong, Xia Lu, Xiangkun Guo
The Society for Organic Petrology (TSOP)
... in the areas where the tectonic-magmatic activities are weak after the period of coal formation. 4.The strip of coal rank has obvious directivity. Especially...
2006
ABSTRACT: A New Gradient Operator with Applications in Geophysics, by Alfaraj, Mohammed; Wang, Yuchun E.; Luo, Yi; #90141 (2012)
Search and Discovery.com
2012
3D Seismic from Planning to Mapping
A. Kullerud, O. Nipen, H. E. Nordberg
Indonesian Petroleum Association
... probably will occur in the Alpha north and the Gamma area. Consequently a good in-line directivity is desired, i.e. the source energy will be focused...
1985
Acoustic modelling with elastic AVA effects
Robin P. Fletcher, James Hobro, James Rickett
International Meeting for Applied Geoscience and Energy (IMAGE)
... (𝑹 ∙ 𝛻𝑃)} = 𝑆 , (1) 𝑃 𝑃 where 𝑃 is pressure, 𝑉 𝑃 is velocity, 𝑆 is the source, and 𝑹 is a vector reflectivity. It is the first Laplacian...
2023