Multi-vessel coil shooting acquisition
View Patent ↗Methods for efficiently acquiring full-azimuth towed streamer survey data are described. The methods use multiple vessels to perform coil shooting.
1. A marine seismic acquisition system, comprising:
a first vessel towing a streamer, wherein the first vessel is configured to travel along a first coil path;
three or more source only vessels, wherein respective source only vessels of the three or more source only vessels are configured to travel along a plurality of coil paths; and
one or more controllers programmed to conduct a multivessel coil shoot using the first vessel and the three or more source only vessels;
wherein respective coil paths in the plurality of coil paths are different.
2. The marine seismic acquisition system of claim 1 , wherein the first coil path and the plurality of coil paths are substantially equivalent.
3. The marine seismic acquisition system of claim 1 , wherein the first coil path and at least one of the plurality of coil paths are different.
4. The marine seismic acquisition system of claim 1 , wherein the multivessel coil shoot collects full azimuth seismic data.
5. A marine seismic acquisition system, comprising:
a first vessel towing a streamer, wherein the first vessel is configured to travel along a first coil path;
a plurality of source vessels, wherein respective source vessels in the plurality of source vessels are configured to travel along one or more coil paths; and
one or more controllers programmed to conduct a multivessel coil shoot using the first vessel and the plurality of source vessels;
wherein an offset between the first vessel and at least one vessel in the plurality of source vessels is greater than 8600 meters.
6. A marine seismic acquisition system, comprising:
a first vessel towing a streamer, wherein the first vessel is configured to travel along a first coil path;
a plurality of source vessels, wherein respective source vessels in the plurality of source vessels are configured to travel along one or more coil paths; and
one or more controllers programmed to conduct a multivessel coil shoot using the first vessel and the plurality of source vessels;
wherein:
there is a first offset between the first vessel and a first source vessel in the plurality of source vessels; and
there is a second offset between the first vessel and a second source vessel in the plurality of source vessels.
7. The marine seismic acquisition system of claim 6 , wherein the first offset and the second offset are substantially equivalent.
8. The marine seismic acquisition system of claim 6 , wherein the first offset and the second offset are different.
9. A method, comprising:
towing a streamer with a first vessel along a first coil path;
towing three or more sources separate from the first vessel along a plurality of coil paths; and
conducting a multivessel coil shoot with the first vessel and the three or more sources;
wherein respective coil paths in the plurality of coil paths are different.
10. The method of claim 9 , wherein the first coil path and the plurality of coil paths are substantially equivalent.
11. The method of claim 9 , wherein the first coil path and at least one of the plurality of coil paths are different.
12. The method of claim 9 , wherein the multivessel coil shoot collects full azimuth seismic data.
13. A method, comprising:
towing a streamer with a first vessel along a first coil path;
towing a plurality of sources along one or more coil paths; and
conducting a multivessel coil shoot with the first vessel and the plurality of sources;
wherein a first source in the plurality of sources and a second source in the plurality of sources have different offsets from the streamer.
14. A method, comprising:
towing a streamer with a first vessel along a first coil path;
towing a plurality of sources along one or more coil paths; and
conducting a multivessel coil shoot with the first vessel and the plurality of sources;
wherein an offset between the streamer and at least one source in the plurality of sources exceeds 12 kilometers.
15. A method, comprising:
towing a streamer with a first vessel along a first curved path;
towing three or more sources separate from the first vessel along a plurality of curved paths; and
conducting a multivessel coil shoot with the first vessel and the three or more sources;
wherein respective curved paths in the plurality of curved paths are different.
16. The method of claim 15 , wherein the first curved path and the plurality of curved paths are substantially the same.
17. The method of claim 15 , wherein the first curved path and the plurality of curved paths are different.
18. The method of claim 15 , wherein the multivessel coil shoot collects full azimuth seismic data.