Solid seismic streamer cable and method
View Patent ↗An apparatus includes a streamer cable having one or more seismic devices disposed within a polymer body and about a core. The polymer body includes a channel defined therein for receiving one or more wires connecting the seismic devices. The wires include slack for withstanding the tensional forces experienced by the streamer cable during deployment and operation. Associated methods are also described.
1. A streamer cable, comprising:
a core internally comprising a strength member, the core extending longitudinally along the streamer cable;
a polymer body surrounding the core, the polymer body having a channel defined therein, the channel having an opening that faces internally and that is adjacent to the core;
a plurality of seismic devices for use in seismic data acquisition; and
wire connecting the seismic devices, whereby slack is imparted to the wire and the wire extends through the channel, wherein the slack is imparted by the wire being longer when straight than the length of the streamer cable.
2. The streamer cable of claim 1 , wherein the channel is defined in the polymer body and the channel extends longitudinally along and adjacent to the core.
3. The streamer cable of claim 1 , wherein the channel is defined in the polymer body in a spaced relation with the core.
4. The streamer cable of claim 1 , wherein the seismic devices comprise sensor electronics.
5. The streamer cable of claim 1 , wherein the seismic devices comprise sensors.
6. The streamer cable of claim 1 , wherein the seismic devices comprise sensors and sensor electronics.
7. The streamer cable of claim 1 , further comprising one or more cavities defined in the polymer body, the one or more cavities being in communication with the channel and enlarged relative to the channel, and wherein the wire is corrugated in the one or more cavities.
8. The streamer cable of claim 1 , wherein the channel extends inline with the core.
9. The streamer cable of claim 1 , wherein the seismic devices comprise at least one accelerometer.
10. The streamer cable of claim 1 , wherein the polymer body comprises two halves connected together.
11. A seismic spread, comprising:
a solid streamer cable, comprising:
a core surrounded by a polymer body, the polymer body having a channel defined therein, the channel having an opening that faces internally and that is adjacent to the core;
a plurality of seismic devices for use in seismic data acquisition; and
wire extending through the channel and connecting the seismic devices, whereby slack is imparted to the wire, wherein the slack is imparted by the wire being longer when straight than the length of the streamer cable; and
a vessel for towing the streamer cable.
12. The seismic spread of claim 11 , wherein the channel is defined in the polymer body and the channel extends longitudinally along and adjacent to the core.
13. The seismic spread of claim 11 , wherein the channel is defined in the polymer body in a spaced relation with the core.
14. The seismic spread of claim 11 , wherein the streamer cable further comprises one or more cavities defined in the polymer body, the one or more cavities being in communication with the channel and enlarged relative to the channel, and wherein the wire is corrugated in the one or more cavities.
15. The seismic spread of claim 11 , wherein the channel extends inline with the core.
16. The seismic spread of claim 11 , wherein the seismic devices comprise at least one accelerometer.
17. The seismic spread of claim 11 , wherein the polymer body comprises two halves connected together.
18. A streamer cable, comprising:
a core internally comprising a strength member, the core extending longitudinally along the streamer cable;
a polymer body surrounding the core, the polymer body comprising two halves that are connected together, the polymer body having a channel defined therein, wherein the channel comprises an opening internally facing the core;
a plurality of seismic devices for use in seismic data acquisition; and
wire connecting the plurality of seismic devices, whereby slack is imparted to the wire and the wire extends through the channel, wherein the slack is imparted by the wire being longer when straight than the length of the streamer cable.
19. The streamer cable of claim 18 , further comprising spaced apart cavities formed in the polymer body in communication with the channel, wherein the cavities are enlarged relative to the channels and the wire disposed in the cavities in corrugated.