- published: 29 Aug 2011
- views: 444043
This short video explains -- to a non-seismologist -- the concept of seismic migration. Common Midpoint Stack, which was state of the art until the early 1970's, was able to produce seismic images with good signal-to-noise. However, the seismic events tend to be mis-positioned and cross one another, particularly when there is geologic dip. Migration is the process of correcting these dip and positioning errors as an automatic digital procedure. Only the seismic velocity must be known (which, unfortunately, is no small feat in many areas!).
John N. Louie, Applied Geophysics class at the University of Nevada, Reno, Lecture 9. http://crack.seismo.unr.edu/ftp/pub/louie/class/492-syll.html Reflection acquisition - phases, spatial aliasing, spreads, stack chart, signal/noise, field strategies. Text: 4.5.1-4.5.2, p. 186-192: W. Telford, L. Geldart, and R. Sheriff, Applied Geophysics, Cambridge Univ. Press, ISBN 0521339383. Seismic overheads 2: p. 1-52: http://crack.seismo.unr.edu/ftp/pub/louie/class/492/overheads/Seismic2.pdf Process your own seismic data with the point-and-click, open-source JRG/Viewmat system from http://crack.seismo.unr.edu/jrg
A helpful animation and explanation of how geoscientists use 3D seismic exploration to find and drill for oil and natural gas energy fuel sources with great accuracy despite those energy resources being buried deep beneath the ground.
Seismic rubber mounts are designed to protect mechanical equipment from the extreme forces of a seismic event, whilst providing superior vibration isolation during normal use. These seismic mounts have been rigorously tested to AS60068.3.3 and the patented method for adjustability allows the ultimate flexibility in height positioning and adjustment. With multiple sizes and rubber hardness, there is an optimum solution for all types of mechanical installations. When selected correctly, these seismic mounts are designed to suit the design requirements of AS 1170.4, NZS4219 and other international seismic standards. http://www.airdiffusion.com.au/new-products/item/52-super-mount-adjustable-seismic-rubber-mounts.html
Seismic exploration The second part of the new Wintershall series on oil looks at seismic exploration. Wintershall uses modern technologies such as 3D and seismic surveys to increase the discovery rate of crude oil.
Seismic Data Processing This is how I install Promax R5000 Landmark. Promax is a software for seismic data processing. Note: Please don't ask me a license. / seismic acquisition and data processing using seismic software promax for advanced geosciences in seismic exploration by oil and gas company geophysical services geophysical surveys company /
John N. Louie, Applied Geophysics class at the University of Nevada, Reno, Lecture 7. http://crack.seismo.unr.edu/ftp/pub/louie/class/492-syll.html Reflection principles - profiling, sounding, NMO, dip. Text: 4.4.3-4.4.8, p. 176-186: W. Telford, L. Geldart, and R. Sheriff, Applied Geophysics, Cambridge Univ. Press, ISBN 0521339383. Seismic overheads 1: p. 33-37: http://crack.seismo.unr.edu/ftp/pub/louie/class/492/overheads/Seismic1.pdf Process your own seismic data with the point-and-click, open-source JRG/Viewmat system from http://crack.seismo.unr.edu/jrg
Some of the richest energy reserves in the world are just off our US shores waiting to be discovered in a government owned area lying just 3 - 200 miles out to sea. An advanced exploration technique called seismic surveying is the first step to unlock this precious resource needed to ensure America's energy security.
BroadSeis is the CGG broadband marine solution, combining industry-leading equipment, unique variable depth streamer acquisition techniques and proprietary deghosting and imaging technology. Over 270,000km2 of BroadSeis 3D, including 70,000km2 of BroadSource and 33,000km2 wide-azimuth data has been acquired. From shallow water North Sea and Indonesian prospects to deep water Gulf of Mexico and West Africa, we have demonstrated BroadSeis' ability to emit, record and process six octaves of data, including ultra-low frequencies in the 2.5 - 5 Hz range, enhancing penetration and illumination below complex overburdens such as subsalt and sub-basalt environments.
VISTA is a leading geophysical software for 2D/3D seismic data processing.
more at http://quickfound.net 'Title Card: "Engineers X-Ray the Ground In Search for New Oil Beds" over patch of scrubby desert. Seismologists detonating explosives (underground) in search of oil deposits. VS surveyors working in scrubby desert; measuring, etc.; raising flag. VS trucks and surveyors; trucks with drilling equipment. Men removing box of dynamite and detonator from truck; man unraveling hose mounted on truck; CU man inserting seismic detector in ground. Man climbing into back of truck; CU tinkering with machine (camera). CU 2 men handling length of pipe (dynamite charge). 2 men beside detonator (one talking on field telephone). Small explosion producing cloud of debris and dust. Diagram of strata (layers of rock); live action explosion superimposed as sound waves emanate. M...
Seismic data acquisition system project-drilling part, including: portable drilling rig, tractor drilling rig and truck mounted drilling rig, vibrator, geophone etc.
Shell Chief Scientist for Geophysics, Dirk Smit, discusses how innovative technologies -- sometimes developed in unusual R&D partnerships -- help energy companies to explore for harder-to-find oil and gas resources. Welcome to Shell’s official YouTube channel. Subscribe here to learn about the future of energy, see our new technology and innovation in action or watch highlights from our major projects around the world. Here you’ll also find videos on jobs and careers, motorsports, the Shell Eco-marathon as well as new products like Shell V-Power. If you have any thoughts or questions, please comment, like or share. Together we can #makethefuture Visit our Website: http://www.shell.com/ Like us on Facebook: https://www.facebook.com/Shell/ Follow us on Instagram: https://www.instagram.com...
An important part of the management of Australia's marine resources is mapping the geology beneath the sea floor; as part of this work we must understand and mitigate associated environmental impacts. This multimedia product provides background information on marine seismic surveys and the environment, as well as Geoscience Australia's role in environmental mitigation and research. For further information visit http://www.ga.gov.au/about/projects/marine/marine-seismic-surveys-and-the-environment. About the data visualisation: The visualisation of the seismic survey process is representative of a seismic survey, and does not represent any particular survey performed by a particular party. It is not to scale, and is only intended to convey the basic concepts of marine seismic surveys. Pr...