Method for enhancing common depth point seismic data

Patent · Tue Jun 30 04:00:00 EDT 1987

OSTI ID:6355631

Wright, J H

A method is described for enhancing common depth point seismic data to reduce averaging of lateral variations in earth's subterranean formations comprising the steps of: (a) forming CDP gathers of seismic signals preprocessed for normal moveout correction; (b) for a selected time slice, measuring the amplitude of each seismic signal in a CDP gather of seismic signals; (c) curve fitting the measures of the amplitude of each seismic signal in the first CDP gather of seismic signal to a reflection coefficient function of the incident angle of each seismic signal, in the CDP gather, with a common reflection point in the earth's subterreanean formation; (d) reducing CDP averaging of lateral variations in the earth's subterranean formations by determining a measure of the reflection coefficient function for a selected incident angle; and (e) repeating the recited steps for other selected time slices and other CDP gathers of seismic signals.

• Assignee: Standard Oil Co., Chicago, IL
• Patent Number(s): US 4677597
• OSTI ID: 6355631
• 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
COMPUTER CALCULATIONS
DATA ACQUISITION SYSTEMS
DATA PROCESSING
DEPTH
DIMENSIONS
GEOLOGIC DEPOSITS
GEOPHYSICAL SURVEYS
INCIDENCE ANGLE
MINERAL RESOURCES
NATURAL GAS DEPOSITS
PETROLEUM DEPOSITS
PROCESSING
REFLECTION
RESOURCES
SEISMIC SURVEYS
SIGNALS
SURVEYS
TIME DEPENDENCE