Economic efficiency of the process of high-speed drilling technologies

Effective management of outgassing in high explosive domestic coal enterprises is an important factor, which significantly improves the operation of the mine. The aim of this study is to validate the cost-effectiveness of mine degasification speed by drilling from the surface. The model of causality for drilling degasification wells is constructed. According to the model the increase in capital leads to the increase in wells that are drilled for decontamination purposes. In turn, decontamination activities cause an increase in coal production, which allows for additional investment in maintaining and increasing the company's capital. Since all links have a positive value, this behavior relates to the archetype of the reinforcing loop connection. The increase in capital causes the rising costs of the enterprise, which negatively affects the investment potential. Thus, there is a negative reinforcement loop connection. The paper proposes a system-dynamic model of the process of high-speed drilling degasification wells from the surface, which allows to estimate the basic relationship between the key parameters of the economic model of the drilling process, as well as the basis for calculating the economic efficiency of this process in the development of Donetsk region. The implementation of this model was carried out in a PowerSim. The resulting simulation model of economic drilling process has a high degree of certainty. The coefficient of determination equal to 0.97, i.e. model obtained 97% describes the dispersion models of key variables, and the remaining 3% are unaccounted for in the model factors. The model analyzes the risks, the sensitivity of the resulting index to changes, as well as determines exactly which assumptions have the greatest impact on the model. It searches (for a given confidence level) the conditions to achieve high profits from the mines to increase the production on the basis of coals varying exogenous variables: the price of 1 ton of coal, the total daily production of all lavas. The conditions for the effectiveness of the high-speed drilling degasification wells are evaluated, and its cost-effectiveness is estimated. The proposed approach was tested in activity of PJSC “Donetskstal” and PJSC “Shakhtouopavlenie “Pokrovsky”.