Electrical and EM methods, 1980-2005

Nabighian, M and MacNae, J 2005, 'Electrical and EM methods, 1980-2005', Leading Edge (Tulsa, OK), vol. 24, no. SUPPL.1, pp. 42-45.


Document type: Journal Article
Collection: Journal Articles

Title Electrical and EM methods, 1980-2005
Author(s) Nabighian, M
MacNae, J
Year 2005
Journal name Leading Edge (Tulsa, OK)
Volume number 24
Issue number SUPPL.1
Start page 42
End page 45
Total pages 4
Publisher Society of Exploration Geophysicists
Abstract The last two decades saw major advances in data collection, processing, and interpretation of electrical and EM data. Lower transmitter frequencies for airborne time-domain EM systems have made possible surveys in areas where conductive cover previously screened basement conductors. As with every other branch of technology, the evolving speed of the silicon chip and of streaming data to hard disk has revolutionized data collection and noise reduction processing. Major advances have been made on increasing the signal-to-noise ratios in ground EM data acquisition systems. Full-waveform recording and the use of multiple receivers are becoming common for ground EM techniques. Previously intractable 2D and 3D data inversions are now slowly becoming available. Finally, controlled-source EM techniques are now being used to detect and characterize hydrocarbon-bearing reservoirs in deepwater areas.
Subject Electrical and Electromagnetic Methods in Geophysics
Keyword(s) Data acquisition
Geophysical techniques
History
DOI - identifier 10.1190/1.2112391
ISSN 1070-485X
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