# Removal of surface multiples

## Abstract

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.

- Inventors:

- Publication Date:

- OSTI Identifier:
- 7181523

- Patent Number(s):
- US 4887243; A

- Application Number:
- PPN: US 6-452996A

- Assignee:
- Mobil Oil Corp., New York, NY

- Resource Type:
- Patent

- Resource Relation:
- Patent File Date: 27 Dec 1982

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 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

### Citation Formats

```
Richardson, K P.
```*Removal of surface multiples*. United States: N. p., 1989.
Web.

```
Richardson, K P.
```*Removal of surface multiples*. United States.

```
Richardson, K P. Tue .
"Removal of surface multiples". United States.
```

```
@article{osti_7181523,
```

title = {Removal of surface multiples},

author = {Richardson, K P},

abstractNote = {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.},

doi = {},

journal = {},

number = ,

volume = ,

place = {United States},

year = {1989},

month = {12}

}