Seismic array positioning
This patent describes a method for determining the position of a seismic subarray in relation to a marine streamer, both being towed behind the stern of a vessel, comprising: providing a first acoustic signal receiving means at least near the marine streamer; providing a second acoustic signal receiving means which is spaced-apart from the first acoustic receiving means by a known distance; providing an acoustic signal sending means at least near the seismic subarray; generating acoustic signals from the acoustic signal sending means at a known time; receiving and detecting the time of receipt of the generated acoustic signals by the first and second acoustic signal receiving means; and calculating the distance of the seismic subarray from the marine streamer based on the known distance between the first and second acoustic signal receiving means, the known times of sending and receiving acoustic signals, and the rate of travel of sound through water at given conditions.
- Assignee:
- Shell Oil Co., Houston, TX
- Patent Number(s):
- US 4709356
- OSTI ID:
- 5820850
- Country of Publication:
- United States
- Language:
- English
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GEOLOGIC DEPOSITS
GEOPHYSICAL SURVEYS
INDUSTRIAL PLANTS
MARINE SURVEYS
MEASURING INSTRUMENTS
MINERAL RESOURCES
NATURAL GAS PROCESSING PLANTS
PETROLEUM DEPOSITS
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