VSP-based method and apparatus for tieing seismic data shot using different types of seismic sources
This patent describes a seismic exploration system. It comprises: means for generating a first type of seismic energy into the earth, the first type of seismic energy characterized by a first source waveform; means for generating a second type of seismic energy into the earth, the second type of seismic energy characterized by a second source waveform different from that of the first source waveform; means for receiving reflections of the first type of seismic energy off subsurface reflecting interfaces; means for receiving reflections of the second type of seismic energy of subsurface reflecting interfaces; means for producing a first VSP data set for the subsurface; means for producing a second VSP data set for the subsurface; means for separating downgoing and upgoing wavefields of VSP data; means for determining a first minimum phase operator for the first VSP from the downgoing wavefield for the first VSP; means for determining a second minimum phase operator for the second VSP from the downgoing wavefield for the second VSP. The downgoing wavefield for the second VSP being different from that of the first VSP; and means for applying the first minimum phase operator to the first type of reflections and applying the second minimum operator to the second type of reflections and applying spiking deconvolution to the first and second applied traces to tie the first type of reflections and the second type of reflections together.
- Assignee:
- Mobil Oil Corp., New York, NY
- Patent Number(s):
- US 4893694; A
- Application Number:
- PPN: US 7-270710A
- OSTI ID:
- 6976655
- Country of Publication:
- United States
- Language:
- English
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EXPLORATION
GEOLOGIC DEPOSITS
GEOPHYSICAL SURVEYS
MEASURING INSTRUMENTS
MINERAL RESOURCES
NATURAL GAS DEPOSITS
PETROLEUM DEPOSITS
RESOURCES
SEISMIC ARRAYS
SEISMIC DETECTORS
SEISMIC SOURCES
SEISMIC SURVEYS
SURVEYS
WAVE FORMS