Relating horsepower to drilling productivity
Many technological advancements have been made in explosive products and applications over the last 15 years resulting in productivity and cost gains. However, the application of total energy (engine horsepower) in the majority of rotary drilling technology, has remained virtually unchanged over that period. While advancements have been made in components, efficiency, and types of hydraulic systems used on drills, the application of current hydraulic technology to improve drilling productivity has not been interactive with end users. This paper will investigate how traditional design assumptions, regarding typical application of horsepower in current rotary drill systems, can actually limit productivity. It will be demonstrated by numeric analysis how changing the partitioning of available hydraulic energy can optimize rotary drill productivity in certain conditions. Through cooperative design ventures with drill manufacturers, increased penetration rates ranging from 20% to 100% have been achieved. Productivity was increased initially on some rigs by careful selection of optional hydraulic equipment. Additional gains were made in drilling rates by designing the rotary hydraulic circuit to meet the drilling energies predicted by computer modeling.
- OSTI ID:
- 433587
- Report Number(s):
- CONF-960262-; TRN: IM9709%%20
- Resource Relation:
- Conference: 22. annual conference on explosives and blasting technique, Orlando, FL (United States), 4-8 Feb 1996; Other Information: PBD: 1996; Related Information: Is Part Of Proceedings of the twenty-second annual conference on explosives and blasting technique. Volume 2; PB: 361 p.
- Country of Publication:
- United States
- Language:
- English
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