Drilling apparatus for drilling small diameter bore holes deep into the earth

摘要

This abstract describes the power compound portion of a bore hole drilling system, which is designed for drilling medium depths of wells, and is designed for portability so that each part of the system can be broken down into subassembly units which are of less than a selected total weight. Thus, the entire system can be transported by helicopters capable of carrying said selected weight. The power compound comprises a self-contained engine manifold to which can be coupled two engines through corresponding gear transmissions to two input shafts. The transmission system in the manifold comprises drive means for driving a pump from each engine through a clutch, at a selected lower speed. It also comprises drive means for coupling the two engine shafts to provide combined power outputs to a shaft which drives the draw works.