| 摘要 |
<p>A method and apparatus is disclosed for performing a seismic survey below the surface of a body of water and on the seabed. In one embodiment, a plurality of seismic data receivers are removably loaded in a carrier (15) located above the surface of the water (11) and the carrier (15) is lowered into the water and placed at a depth relatively close to the seabed (17). Each of the receivers has a memory for recording the vibrations of the seabed and has a switch for activating the memory. A ROV (20) is used to unload the receivers from the carrier (15) and to deposit each receiver (R) on the seabed (17)and along a survey line. In one embodiment, the receivers comprise a frame, a pressure vessel for housing the memory and remotely activated controls, and a geophone that is separately planted into the seabed at a relatively short distance from the frame.</p> |
