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Abstract

Streamers used in mapping strata beneath a marine body are described, such as in a flexible neutrally buoyant towed array. A streamer cable is described using polyurea, within a sleeve, where the polyurea demonstrates durability in the presence of extreme hydrodynamic forces at depths in the marine body. The sleeve optionally uses longitudinal directed, inward pointing ribs to distribute forces and to minimize expansion of micro-cracks. The polyurea is optionally made neutrally buoyant through the controlled dosage of hollow, flexible, and/or glass microspheres into the polyurea at time of polymerization. A stress relieving connector is optionally used to longitudinally join a first and second streamer section and/or to connect a streamer section to a streamer stabilizer.

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First Claim