METHOD AND APPARATUS FOR ACCURATE PLACEMENT OF OCEAN BOTTOM SEISMIC INSTRUMENTATION
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United States of America Patent
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Issued Date -
Jul 21, 2011
app pub date -
Jan 19, 2010
filing date -
Jan 19, 2010
priority date (Note) -
Abandoned
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Abstract
Embodiments described herein relate to an apparatus and method for deployment and retrieval of one or more seismic devices in a deep water marine environment. In one embodiment, a method for deploying and positioning ocean bottom equipment is described. The method includes attaching at least one article having a negative buoyancy to a support cable, lowering the at least one article into the water column from two or more points of suspension on a surface of the water column, at least one of the two or more points of suspension being movable relative to the other point of suspension, and manipulating tension of the support cable, length of the support cable, position of the support cable, and distance between the two or more points of suspension to cause the at least one article to fall to a bottom of the water column at a predetermined location on the bottom.
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