Gravity Measurements Using Seismic Streamers
AssigneeWesternGeco L.L.C.
InventorsEverhard Muyzert, Philip A. F. Christie, Nicolas Goujon, Julian Edward (Ed) Kragh, Johan O. A. Robertsson
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Abstract
A technique facilitates collection and use of data on subterranean formations. The technique comprises obtaining gravity measurements through the use of seismic streamers. At least one streamer is provided such that each streamer has multiple sensors, e.g. accelerometers. The at least one streamer is towed with a tow vessel, and gravity data are accumulated via the multiple sensors during towing.
Claims21
A method of obtaining gravity measurements using seismic streamers, comprising:
- providing at least one multi-component streamer, each multi-component streamer having a plurality of sensors;
- towing the at least one multi-component streamer with a tow vessel;
- and
- accumulating gravity data with the plurality of sensors during towing.
A method of conducting a seismic survey, comprising:
- towing a plurality of streamers with a tow vessel in which each streamer comprises multiple accelerometers;
- collecting seismic data from the multiple accelerometers during towing;
- and
- simultaneously collecting gravity data from the multiple accelerometers during towing.
A system, comprising:
- a survey system having at least one streamer with each streamer comprising a plurality of sensors, the survey system further comprising a processing system to process data transferred from the plurality of sensors of each streamer, wherein the processing system processes the data in a manner which provides both seismic information and gravity measurements.
Dependencies are inferred from the claim text.