Abrasive containing fluid jet drilling apparatus and process

Patent · Tue Aug 13 04:00:00 EDT 1985

OSTI ID:6418969

Wang, F -D; Yie, G G

An abrasive-fluid jet apparatus and process for drilling holes in rock having a rotary drill bit with multiple abrasive-fluid jet nozzles in the face of the bit and a stationary drill head housing torque generation apparatus and a rotary mounting holding the rotary drill bit beneath and in rotatable relation to the drill head. Abrasive supply facilities and fluid supply facilities are located at ground level for separate supply of the abrasive and the fluid to the abrasive-fluid jet nozzles. It is preferred that the abrasive be supplied to the nozzles in the form of slurry or foam. The apparatus and process of this invention permits deep hole drilling at lower fluid pressures than and without surface structures required by current deep drilling apparatus and techniques.

• Assignee: EDB-86-007842
• Patent Number(s): US 4534427
• OSTI ID: 6418969
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
ABRASIVES
DESIGN
DISPERSIONS
DRILL BITS
DRILLING
DRILLING EQUIPMENT
DRILLING FLUIDS
DRILLS
EQUIPMENT
FLUID MECHANICS
FLUIDS
HYDRAULICS
JETS
MECHANICS
MIXTURES
NOZZLES
ROTARY DRILLS
SLURRIES
SUSPENSIONS
WELL DRILLING