Seismic acquisition using solid streamers

摘要

An embodiment of the disclosed invention includes a method for attenuating noise during acquisition of marine seismic date. The method includes placing a seismic streamer in a body of water. The seismic streamer includes a streamer body having a length and a channel, a seismic sensor disposed within the channel, and a gel disposed within the channel. The gel has a complex viscosity of at least 50 Pascals and includes a concentration of a polymer between the range of about 5% and about 25% by weight. The method also includes placing a source in the body of water. The seismic streamer and the source are towed through the body of water and the source is fired while being towed through the body of water. Data is collected from the seismic streamer as it is towed through the body of water.

主权项

1. A method for manufacturing a seismic streamer for acquiring marine seismic data, the seismic streamer having improved noise attenuating properties, the method comprising:
providing a streamer body comprising:
a streamer body length;one or more channels; anda solid streamer core disposed within the one or more channels of the streamer body; inserting a seismic sensor within a first channel of the streamer body; inserting a liquid gel within at least a portion of the first channel, the liquid gel comprising a thermo-reversible polymer dissolved in a fluid, wherein a concentration of the thermo-reversible polymer dissolved in the fluid is between the range of about 10% and about 20% by weight of the gel, and wherein the liquid gel is configured to have a complex viscosity between the range of about 100 Pascals and about 800 Pascals; and cooling the liquid gel so that the liquid gel at least partially solidifies.