Abstract: This paper points out,by comparing hydraulic drilling pumps with conventional tri-cylinder drilling pumps,that the former possess better drilling performance,and social and economic benefit than the latter,and therefore represent the new develpment of drilling pump technology.This paper also offers an approach to the design of 1000 HP hydraulic drilling pumps,presents the construction and working principle of a kind of hydraulic drilling pumps,and expounds the feasibility and possibility of the approach.

Key words: Drilling pump, Hydraulic system, Feasibility research