№3 (2018)

Biletskiy M.T., Ratov B.T., Muratova S.K., Bayboz A.R.

The advantages of computer programs are high-speed performance, accuracy, possibility to perform great number of virtual experiments, and applicability of numerical mathematics methods. The objective of the work is an analysis of rock destruction while drilling theories and entering alterations and amendments, representing an essential novelty. An error in the currently in use algorithm of the indentor penetration in the rock discovered, and its explanation presented. The cutting type drilling theory is illustrated by examples, some of its outputs are specified by iteration method. A program for the Student distribution at statistic processing of experiments is made up and in particular for determining their necessary quantity. The currently in use procedure is specified by use of the iteration method. The above stated can be applied at designing new type bits, as well at optimization of drilling technology.
Kеywоrds: user program, research outputs amendment, rock destruction at drilling theories, indentor penetration, cutting type drilling, statistic processing of experiments.