| In recent years Logging while drilling (LWD) is the most rapid rise, logging an advanced technology, as compared with conventional logging methods, logging while drilling data more real, more timely, more accurate, more objective response to the actual formation geological features, satisfying the modern oil and gas industry to the special needs of logging techniques. With the development of the entire oil industry, high angle wells, horizontal wells drilling techniques are increasingly being used to develop smaller, poorer physical properties, reservoir thinner, strong reservoir heterogeneity. Logging While Drilling (LWD) due to their own characteristics, and more being used for the evaluation of these reservoirs and high angle wells, horizontal well drilling application of geological-oriented work.Among them, the electromagnetic wave logging while drilling resistivity logging is logging in a power law in the oil exploration plays an important role. The topics studied the conductivity of 2MHz electromagnetic wave propagation logging while drilling, as well as to respond to inversion of information, geological guide, which is logging data processing and interpretation and geological evaluation has certain reference value.Forward this article to respond to the use of analytical methods, and Dyadic Green function method for electrical conductivity 2MHz electromagnetic wave propagation logging while drilling response of specific studies; inversion using the forward and the establishment of differential response to solving the whole Jacobian matrix for further study. Including theoretical derivation algorithms, physical modeling, well logging response to the law of inversion, and data processing. The following main results obtained: (1) the dyadic Green's GME (r ,r′) and GMH(r ,r′) in layered anisotropic formation was developed. How to determine the Sommerfeld integral determined coefficient of equation group by recursive algorithm was deduced particularly. Then, this method program is compiled on the Fortran power station4.0 software. (2) The influencing regularity of electromagnetic logging response while drilling are simulated in layered isotropic and anisotropic formation considering thickness, rock and dip angle.(3) The impact factors of vertical resolution and detection of electromagnetic wave logging while drilling was analyzed. (4) Inclined coil logging tool to simulate the geological theory of the role of orientation and the use of the special nature of this instrument against performance anisotropic formation conductivity and the relative formation dip.
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