Increase of energy efficiency of electrically driven drilling installations by valorising the braking regime of the draw works upon descending the pipe line
The paper provides a method and, at the same time, a solution to increase the yield of electrically driven drilling machines by efficiently implementing the technological processes specific to hydrocarbon exploratory drill. It is known that one of these technological processes refers to the execution of deep drill wells (2000-10000 m) by using diamond system drilling installed on the top of a drill pipes driven by a draw works in repeated ascending – descending marches. If, upon ascending such columns, the primary energy is consumed, upon descending in the drilling process, a large amount of potential energy of the soil is lost for many of the drilling machines. This paper presents a method and a solution to use such potential energy in the braking process irrespective of the type of electrical drilling machines.