Controlled-sourceElectromagnetic methodMultiscaleDeep earth detectionAs an important branch of geophysical exploration method, the electromagnetic method with artificial source has advanced rapidly in the past decade. These methods are classified as airborne electromagnetic method, ground-air electromagnetic ...
Marine controlled-source electromagnetic method (MCSEM), utilizing a horizontal electric dipole source towed close to the seafloor and transmitting an electromagnetic field, is sensitive to horizontal resistors embedded in conductive seabed (Constable and Srnka, 2007). The gas hydrates are orders of mag...
The Potential of the Controlled Source Electromagnetic Method: A Powerful Tool for Hydrocarbon Exploration, Appraisal, and Reservoir Characterization and Wright, D. (2012). The potential of the controlled source electromagnetic method: A powerful tool for hydrocarbon exploration, appraisal, and reser- ....
Interpretation of marine controlled source electromagnetic data is potentially influenced by bathymetry. Electromagnetic field strength and direction can be affected by small changes in water column depth. The propagation of electromagnetic fields in complex 3D geo-clcctrical setting cannot be understood by...
1DCSEMQWE: 1D Controlled Source Electromagnetic Method in Geophysics Using Quadrature With Extrapolation We present a C++ package entitled 1D Controlled Source Electromagnetic Method using Quadrature With Extrapolation (1DCSEMQWE), which computes the electroma... PN Kien,SM Lee - 《Softwarex》 被引量...
Recently, the application of controlled-source electromagnetic method (CSEM) to seafloor detection has become the study hotspot overseas. 近年来,可控源电磁法(CSEM)在海底探测中的应用成为国际上研究的热点。补充资料:人工源深部地震探测 利用震中、震源深度和发震时刻都可预先确定的人工地震源,探测地壳深部和...
The frequency-domain controlled-source electromagnetic method (FDCSEM) has played an important role in the terrestrial and oceanic exploration. However, the measuring manners and the detecting abilities in two kinds of environment are much different. This paper analyses the electromagnetic theories of th...
A New Electromagnetic Method in Urban Geological Work the Application of the CSAMT; 在城市地质工作中应重视一种新型电磁法——可控源音频大地电磁法的应用 2. 2.5-D CSAMT MODELING WITH THE FINITE ELEMENT METHOD OVER 2-D COMPLEX EARTH MEDIA; 复杂介质有限元法2.5维可控源音频大地电磁法数值模拟 3....
Three‐dimensional iterative inversion of the marine controlled‐source electromagnetic data We developed a novel method of full 3‐D inversion of the marine controlled‐source electromagnetic (MCSEM) data. Our approach employs the localized quasi‐linear (LQL) approximation in the initial stage of inv...
We illustrate the metal casing effect with synthetic 3-D modelling of land-based controlled source electromagnetic data. Steel casings distort electromagnetic fields even for large borehole-transmitter distances above 2 km. The effect depends not only on the distance between casing and transmitter, ...