Ultrasonic surface texture measurement apparatus and method

Patent · Tue Mar 03 04:00:00 EST 1987

OSTI ID:7097695

Siegfried, R W

This patent describes a well logging system utilizing a borehole tool of the type that acoustically scans the wall of a borehole by rotating an acoustical transducer adapted to transmit acoustic energy in the form of pulses in the direction of the wall and to receive at least a portion of the resultant energy reflected therefrom. The improvement described here comprises: (a) receiving transducers disposed vertically above and below the combines transmission and receiving transducer to form therewith a transducer array; (b) means for recording the reflected energy detected by each transducer of the array; (c) means for determining the variation in amplitude of the reflected energy across the array at each point on the surface to which the acoustic pulses are directed as an indicator of roughness of surface of the borehole wall.

• Assignee: Atlantic Richfield Co., Los Angeles, CA
• Patent Number(s): US 4646565
• OSTI ID: 7097695
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
03 NATURAL GAS
030200 -- Natural Gas-- Reserves
Geology
& Exploration
AMPLITUDES
BOREHOLES
CAVITIES
EQUIPMENT
NATURAL GAS WELLS
OIL WELLS
PROBES
PULSES
REFLECTION
ROUGHNESS
SONIC LOGGING
SONIC PROBES
SURFACE PROPERTIES
TEXTURE
WALLS
WELL LOGGING
WELL LOGGING EQUIPMENT
WELLS