Simultaneous digitizing apparatus for an acoustic tool

Patent · Tue Feb 28 04:00:00 EST 1989

OSTI ID:6272812

Zimmer, M D

A data collection and digitizing system is described comprising acoustic receivers carried in the acoustic logging sonde for forming time overlapping analog acoustic logging output signals from the receivers, integer; first multiplexing means having inputs connected to the outputs of the acoustic receivers; second multiplexing means connected to the first multiplexing means; digital converter means operating at a first rate and connected to the second multiplexing means for forming a time based series of digital words; digital data buffer means in the sonde connected to the digital converter means for retaining in a formatted order a series of digital words from the converter means; timing means incorporated with the control means to time digitizing; telemetry transmitting means for telemetering the series of digital words from the buffer means along at least one data conductor in the cable at a second transmitting rate which is slower than the first converter operating rate such that a single acoustic energy pulse from the acoustic transmitter generates digital representations of the acoustic energy received at the acoustic receivers corresponding to the arrival at each receiver of a single acoustic energy pulse.

• Assignee: Halliburton Co., Duncan, OK
• Patent Number(s): US 4808996
• OSTI ID: 6272812
• 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
99 GENERAL AND MISCELLANEOUS
990220 -- Computers
Computerized Models
& Computer Programs-- (1987-1989)
ACOUSTIC MEASUREMENTS
COMMUNICATIONS
DATA TRANSMISSION
DATA TRANSMISSION SYSTEMS
DIGITAL SYSTEMS
EQUIPMENT
EXPLORATION
EXPLORATORY WELLS
GEOLOGIC DEPOSITS
MINERAL RESOURCES
NATURAL GAS DEPOSITS
PETROLEUM DEPOSITS
PROBES
RESOURCES
SONIC LOGGING
SONIC PROBES
TELEMETRY
WELL LOGGING
WELL LOGGING EQUIPMENT
WELLS