Removal of surface multiples

Patent · Tue Dec 12 00:00:00 EST 1989

OSTI ID:7181523

Richardson, K P

This patent describes, in seismic exploration wherein a plurality of seismic traces are generated by generating seismic energy at a plurality of points along an exploration line and detecting reflections of the seismic energy at a plurality of the points, a method of removing records of multiple reflection events from seismic trances representing waves of seismic energy travelling along paths having end points along the exploration line. It comprises: recording traces with respect to locations of sources and detectors of seismic energy along the line; calculating Fourier-transformed versions of the traces; selecting a trace to be analyzed; selecting pairs of transformed versions of traces, the ones of the pairs of traces each having one end point in common and their other end points the same as the trace to be analyzed; multiplying together corresponding frequency components of ones of the pairs; stacking the results of the multiplying step to generate a synthetic multiple trace; taking the inverse Fourier transform of the synthetic multiple trace; and subtracting the inversely-transformed synthetic multiple trace from trace to be analyzed.

• Assignee: Mobil Oil Corp., New York, NY
• Patent Number(s): US 4887243; A
• Application Number: PPN: US 6-452996A
• OSTI ID: 7181523
• Resource Relation: Patent File Date: 27 Dec 1982
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
SEISMIC SURVEYS
CALCULATION METHODS
EXPLORATION
NATURAL GAS DEPOSITS
PETROLEUM DEPOSITS
WAVE PROPAGATION
GEOLOGIC DEPOSITS
GEOPHYSICAL SURVEYS
MINERAL RESOURCES
RESOURCES
SURVEYS
020200* - Petroleum- Reserves
Geology
& Exploration
030200 - Natural Gas- Reserves
Geology
& Exploration