Abstract:
A marine cable includes chambers forming a necklace float. For filling, degassing the chambers and for connecting two successive chambers, the cable includes an intervention orifice between the chambers and with which the chambers communicate. Connection of the chambers to the intervention orifice is controlled by two valve mechanisms which each include an obturator spring-loaded against a communication opening and a guide rod which, when the obturator closes the opening, lies partly in the intervention orifice so that it is possible to push back the rods of the valve mechanisms from the intervention orifice for selective connection of the intervention orifice to one or the other of the two chambers or with both at the same time.
Abstract:
Described herein is a seismic streamer formed of sections including a main sheath covered with an external sheath, wherein said external sheath is formed using a thermoplastic material loaded with a biocide material.
Abstract:
Described herein is a seismic streamer formed of sections including a main sheath covered with an external sheath, wherein said external sheath is formed using a thermoplastic material loaded with a biocide material.
Abstract:
System and method for providing an anti-fouling function to a streamer to be towed under water for seismic survey data collection. The method includes mixing a thermoplastic material with a biocide material to form an external sheath material; and forming an external sheath over a main sheath of the streamer to provide the anti-fouling function. The external sheath is formed from the external sheath material such that the biocide material is distributed throughout the external sheath.