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The AAPG/Datapages Combined Publications Database
Showing 2,237 Results. Searched 196,371 documents.
Corrected Record Sections
Ernest M. Hall Jr.
CSPG Special Publications
... of Fig. 4 show the effect of filtering. Both were played back from the same tape, the first through a high frequency filter and the second through a low...
1957
A Comparative Study of 3-D Noise Attenuation Techniques
Daniel Wheaton, Yendri, Kusnarya
Indonesian Petroleum Association
.... Noise removed from line NS-Y by 2D plus 2D Fx filtering Randomization of Linear Noise Exhibit 4 demonstrates the effect of rotating the grid...
1996
Abstracts: What Receivers will we use for Low Frequencies?; #90173 (2015)
R. Malcolm Lansley and Peter Maxwell
Search and Discovery.com
... geophones that most recording crews use today. Improvements in digital filtering in our recording systems have allowed for steeper-sloped anti-alias...
2015
Seismic Exploration for Stratigraphic Traps: Geophysical Exploration Methods
Paul L. Lyons, M. B. Dobrin
AAPG Special Volumes
..., such as the geophones and the amplifiers, which have a much lower dynamic range than the digital elements. In principle, the most effective approach...
1972
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: Noise and its Effect on Microseismic Event Locations; #90174 (2014)
Neda Boroumand and Henry Bland
Search and Discovery.com
... employ various frequency-selective preprocessing filters prior to picking and locating events. We will also see what (if any) effect pre-pick filtering...
2014
Abstract: Red Sea 2D Transition Zone Reprocessing Case Study; #90254 (2016)
Sergey Kishchik
Search and Discovery.com
..., and three air gun array sources. There were six types of receivers, such as geophones for land surveys and marsh phones, OBC hydrophones, OBC...
2016
Technique and Methods of Geophysical Exploration in Canada
A. I. Bogdanov
Petroleum Geology: A Digest of Russian Literature
... of a spring, and has a system for dampening microseisms. The instrument is very stable; drift of zero is generally less than 0.5 mgl per month. Dreyfus effect...
1959
Passive Microseismic - Direct Hydrocarbon Sensing with Minimal Environmental Impact
Helen Debenham, Evgeny Smirnov
Australian Petroleum Production & Exploration Association (APPEA) Journal
..., changing above hydrocarbon accumulations. The effect of change in the low-frequency range of natural microseismic background above petroleum accumulations...
2022
Seismic Surveying
W.B. Heroy Jr., R.A. Arnett
Appalachian Geological Society
...-instrument truck (Figure 5), carrying geophones, cables, electrical filtering, amplifying and recording equipment, generators, batteries, developing...
1949
Abstract: Hurrah for Hussah! Analysis of Stacked Data from a Low-frequency Seismic Data Acquisition Experiment at Hussar, Alberta; #90174 (2014)
J. Helen Isaac and Gary F. Margrave
Search and Discovery.com
... with a custom low dwell sweep, and dynamite. Each source was recorded by three receiver types: 10 Hz 3C geophones, 4.5 Hz 1C geophones and Vectorseis...
2014
Abstract: An Application of 2D Acoustic Datuming: Seeing through Outcropping Volcanics, by G. Omnes; #90942 (1997).
Search and Discovery.com
1997
Extending the Resolution of Seismic Reflection Exploration
L. R. Denham
Pacific Section of AAPG
... than this wavelength. The array will then have little overall effect on the desired signal. Geophone array design theory generally assumes all geophones...
1980
The Role of Statics Application in the Imaging of Sub-Surface in Fold Belt Areas, #40746 (2011)
Arun Kumar Arya, Bharat Chandra Joshi, Narinder Pal Singh,
Search and Discovery.com
..., limit the lower part of the frequency band causing a “ringy” effect in the seismic data. On the other hand, the 30 Hz geophones are more sensitive...
2011
Seismic Acquisition in the Papuan Fold Belt: A New Approach
G. S. Hill, S. J. Price, M. S. Foster, R. W. Stephenson, D. Ellis, J. A. Lyslo
Papua New Guinea (PNG) Petroleum Convention Proceedings
... dug through to the bedrock. In addition, wherever possible the geophones were cemented to the limestone. (3) Interactive, iterative seismic data...
1996
Foreword for Geophysical Part of Field Trip
R. E. Kropschot, James E. Walker
Pacific Section of AAPG
... being recorded at any given time during the course of operations. United 1–38 amplifiers and Electro-Tech EVS-2 geophones with a natural frequency...
1965
Surface Source Technology
Stan D. Brasel
Pacific Section of AAPG
... minimized the ground mixing or velocity filtering effect and still have provided the desired level of signal-to-noise enhancement. Figure 20. Seismic...
1972
Telluric Currents and Their Use in Petroleum Exploration
K. Vozoff , R. M. Ellis , M. D. Burke
AAPG Bulletin
... applications. The major problems at the present time are analyzing and interpreting the measurements. Analysis (filtering) is now being done...
1964
Seismic Resolution in the Mahakam Delta
J. B. Beauchamp
Indonesian Petroleum Association
... the right parameters were not used on the fields – geophones instead of hydrophones, single shot instead of double shot, horizontal filtering instead...
1980
Field Technique Design for Seismic Reflection Exploration
L. R. Denham
Dallas Geological Society
...). Because we are now interested in attributes of reflections rather than just reflection times, the effect of field parameters on the reflections...
1982
Abstract: Elastodynamic FWI Efficiency Study With Partial Stacking in 2D; #90224 (2015)
Vladimir N. Zubov, Gary F. Margrave, and Michael P. Lamoureux
Search and Discovery.com
... no effect on both stacks until the moment when filtering starts increasing the weight of the noise frequency in the misfit data masking. It appears after...
2015
Abstract: Receiver Comparison for a Non-repeatable Earthquake Source on the Hussar 2011 Low-frequency Seismic Experiment; #90174 (2014)
Kevin W. Hall, Gary F. Margrave, and Malcolm B. Bertram
Search and Discovery.com
... geophones at 10 m station spacing, VectorSeis 3-C accelerometers at 10 m spacing, Sunfull 4.5 Hz 1C geophones at 20 m spacing, a partial line of SM-24...
2014
Abstract: *Do Digital Sensors Preserve Amplitude Better? Case Studies, by Denis Mougenot and Lv Shuying, #90188 (2014)
Search and Discovery.com
2014
Abstract: Evaluation of Different Fiber Optic Cables For Near-Surface Reflection Seismic; #91204 (2023)
Anton Egorov, Pavel Golikov, Andrey Bakuli, Konstantin Tertyshnikov, Roman Pevzner
Search and Discovery.com
...-surface reflection field seismic dataset obtained in parallel with several straight and shaped buried fiber optic cables and surface geophones. We...
2023
Abstract: Acquiring Low Frequencies : Sweeps, Sensors, Sampling and Stories; #90224 (2015)
Olivier Winter, Anna Leslie, and Forest Lin
Search and Discovery.com
... 300 m/s ground roll, which helps the linear noise attenuation through velocity-filtering. Statics do not prove as destructive as they can be for higher...
2015