Algorithms and software for geosteering according to LWD EM data

Construction of boreholes with horizontal completion in complex geological environments calls for the application of high-Tech geophysical complexes for logging while drilling (LWD). The first Russian LWD telemetry system has been created. This paper is dedicated to the development of an interpretation framework for the equipment in question. We have performed an analysis of the results of using computational algorithms and software for data processing and interpretation. We have also conducted numerical simulation and inversion of electromagnetic log data with regard to solving geosteering problems. The algorithms and software have been tested on practical logs.