Summary

There has been developed several algorithm for two dimensional (2-D) inverse problem of Magnetotelluric (MT) data. The well-known algorithms are developed by DeGrooth Hedlin and Constable (1990) (OCCAM), Smith and Booker (1991) (RRI), and Mackie et al. (1997) (CG) three of which based on smoothing approximation. However, forward solution and jacobian matrix calculation of the algorithms are different from each other. In addition, while SVD is used in inversion part of the first two algorithms, conjugate gradient solution is used in the third algorithm. Therefore, they generate different result from each other. It is not known exactly what is causing these differences. In this paper, a new code is developed in MATLAB for 2-D inversion of MT data.

Keywords:
cpu time, geophysics, two-dimensional inversion, inversion, misfit, comparisonal study, mt data, stabilizer, salt lake city, cg solution
Subjects:
Reservoir Characterization, Formation Evaluation & Management, Cross-well tomography
This content is only available via PDF.
2002. Society of Exploration Geophysicists
You can access this article if you purchase or spend a download.