Abstract: A variable buoyancy cable is provided. In one aspect, the variable buoyancy cable includes a flexible sleeve that has an inner wall and an outer wall. A core is positioned in the sleeve and has a longitudinally disposed external channel with opposing first and second sidewalls. The channel and the inner wall of the flexible sleeve define a fluid passage for receiving a fluid to affect the buoyancy of the variable buoyancy cable. A slackened utility line is positioned in the channel and a fluid supply is coupled to the flexible sleeve and is operable to move fluid into and out of the fluid passage to selectively affect the buoyancy of the variable buoyancy cable. The core protects utility lines in the cable from damage due to ambient pressure and/or bending during deployment and retrieval. The buoyancy may be varied to suit various water conditions and mission requirements.

Abstract: A seismic sensor pod is provided for coupling to a seismic cable and establishing a substantially water tight connection between the seismic cable and a seismic sensor. The pod includes a housing for holding the seismic sensor. The forward section of the housing includes a substantially sealed chamber. One or more conductors from the seismic cable are cut and the cut ends are projected into the chamber. Electrical connection between the cut ends of the conductors and the seismic sensor is established by a connector member. The pod provides a water resistant pathway between the conductors of the seismic cable and the seismic sensor, and a streamlined housing to hold the seismic sensor.