Method for logarithmic analysis of seismic reflection signals

Patent · Tue Mar 14 04:00:00 EST 1989

OSTI ID:6148625

Quaglino, C A

A method is described for conducting a seismic survey along a line of exploration, comprising the steps of: (a) traversing a line of exploration with a seismic survey system having an acoustic energy source, an array of spaced-apart receivers, and a recording system, (b) firing the acoustic energy source at a plurality of shot points along the line of exploration, (c) recording seismic reflection signals received by the array of receivers for each of the shot points, (d) digitizing the recorded seismic reflection signals to provide a plurality of digital data samples for each of the recorded seismic reflection signals; (e) determining the logarithmic value for each of the digital data samples; (f) plotting the logarithmic values of the digital data samples to provide a seismogram with the seismic reflection signals from the receivers being recorded in side-by-side trace relationship, (g) comparing the logarithmically plotted traces of the digital data samples to detect a trend in one or more select seismic survey parameters along the line of exploration away from a required value for the select seismic parameter, and (h) adjusting the select parameter to bring the value of the select parameter for which the trend is detected back in line with the required value for the select parameter.

• Assignee: Mobil Oil Corp., New York, NY
• Patent Number(s): US 4813026
• OSTI ID: 6148625
• 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)
CALCULATION METHODS
DATA PROCESSING
DIGITAL SYSTEMS
EXPLORATION
GEOLOGIC DEPOSITS
GEOPHYSICAL SURVEYS
MEASURING INSTRUMENTS
MINERAL RESOURCES
NATURAL GAS DEPOSITS
PETROLEUM DEPOSITS
PROCESSING
RECORDING SYSTEMS
RESOURCES
SEISMIC ARRAYS
SEISMIC DETECTORS
SEISMIC SURVEYS
SEISMIC WAVES
SURVEYS