Focus on rotary drill rigs

Journal Article · Mon Jun 01 00:00:00 EDT 1987 · Compressed Air; (United States)

OSTI ID:5887987

Schivley, Jr, G P

This article discusses the drill rig, focusing on the rotary drill rigs. There are two principal drilling methods - rotary and percussion. In certain situations, percussion drilling is the most practical method, but for most applications, rotary drilling using the rotary-tricone bit with either steel-toothed cones or carbide inserts, is the common and accepted drilling technique. There are four principal reasons for a rotary drill rig: to provide power to the rotary-tricone bit; to provide air to clean the hole; to provide a life-support system for the rotary-tricone bits; and, to provide a stable and efficient platform from which to drill the hole.

• OSTI ID: 5887987
• Journal Information: Compressed Air; (United States), Journal Name: Compressed Air; (United States) Vol. 92:6; ISSN COAIB
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420206* -- Engineering-- Mining & Drilling Equipment & Facilities-- (1980-1989)
422000 -- Engineering-- Mining & Underground Engineering-- (1980-)
AIR FLOW
ALLOYS
BOREHOLES
CARBIDES
CARBON COMPOUNDS
CAVITIES
COMMINUTION
DESIGN
DOCUMENT TYPES
DRILL BITS
DRILLING
DRILLING EQUIPMENT
DRILLING RIGS
DRILLS
EFFICIENCY
EQUIPMENT
EQUIPMENT PROTECTION DEVICES
EXPLOSIVE FRACTURING
FLUID FLOW
FRACTURING
GAS FLOW
IRON ALLOYS
IRON BASE ALLOYS
MECHANICAL STRUCTURES
MINING
REVIEWS
ROTARY DRILLING
ROTARY DRILLS
STABILITY
STEELS
SUPPORTS
SURFACE MINING