Feasibility study of tuned-resonator, pulsating cavitating water jet for deep-hole drilling

Technical Report · Sat Aug 01 04:00:00 EDT 1981

DOI:https://doi.org/10.2172/6266875· OSTI ID:6266875

Johnson, Jr, V E; Lindenmuth, W T; Conn, A F; Frederick, G S

This study presents the advantages of pulsing a submerged jet to increase its erosion capability (particularly as caused by cavitation) in augmenting deep-hole drill bits. Various methods of accomplishing the pulsation are presented and discussed. The most attractive systems uncovered are acoustic oscillators which passively accomplish pulsations in the flow at frequencies corresponding to a Strouhal number in the range of 0.2 to 1.0. Such passive oscillators are assessed to be feasible candidates for development into practical deep hole drill bit systems and a long range plan for this research and development is presented and discussed.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA); Hydronautics, Inc., Laurel, MD (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6266875
• Report Number(s): SAND-81-7126; ON: DE81031924
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300 -- Petroleum-- Drilling & Production
15 GEOTHERMAL ENERGY
150901* -- Geothermal Engineering-- Drilling Technology & Well Hardware
CAVITATION
DRILL BITS
DRILLING
DRILLING EQUIPMENT
DRILLS
ELECTRONIC EQUIPMENT
EQUIPMENT
FEASIBILITY STUDIES
Geothermal Legacy
JET DRILLS
NOZZLES
OSCILLATORS
PULSES
RESONATORS
WELL DRILLING