Well servicing system employing sonic energy transmitted down the pipe string

Patent · Tue Feb 07 04:00:00 EST 1984

OSTI ID:6841104

Bodine, A G

A well servicing system is disclosed in which sonic energy is transmitted down a pipe string to a down hole work area a substantial distance below the surface. The sonic energy is generated by an orbiting mass oscillator and coupled therefrom to a central stem to which the piston of a cylinder-piston assembly is connected. The cylinder is suspended from a suitable suspension means such as a derrick, with the pipe string being suspended from the cylinder in an in-line relationship therewith. The fluid in the cylinder affords compliant loading for the piston while the fluid provides sufficiently high pressure to handle the load of the pipe string and any pulling force thereon. The sonic energy is coupled to the pipe string in a longitudinal vibration mode which tends to maintain this energy along the string.

• Assignee: EDB-84-105434
• Patent Number(s): US 4429743
• OSTI ID: 6841104
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
COUPLING
DESIGN
DRILL PIPES
DRILLING EQUIPMENT
ELASTICITY
ELECTRONIC EQUIPMENT
EQUIPMENT
MECHANICAL PROPERTIES
MECHANICAL VIBRATIONS
OSCILLATION MODES
OSCILLATIONS
OSCILLATORS
PIPES
PISTONS
RESONANCE
RESONATORS
SOUND WAVES
TENSILE PROPERTIES
TOOLS
TRANSMISSION
WELL SERVICING