Improving the Accuracy of Directional Drilling by Logging Tools Enhancement

Mathematical model of error determination appeared while drilling of relative dip angle between tool axis and seam roof and drilling direction correction are developed. Geonavigation specific and logging tool design features is considered in model. The accidents occurred when drilling and equipment damage opportunities are considered. It is noted when drilling accuracy grow the accident risk and equipment damage opportunity decrease. Existing logging tool is explored and way to improve its accuracy is found. Its algorithms correction is proposed.