Claims
- 1. A seismic marine streamer including hydrophones housed in elongate flexible tubes, only two load carrying rope members, a plurality of spacers which substantially fill the internal cross section of the tube, the internal void within the tube being filled by a liquid, the two load carrying rope members passing through each spacer on diametrically opposite sides thereof adjacent the outer peripheral margin of each spacer, and having a nominal diameter of at least 8 mm and a breaking load of at least 14,000 lbs. (6250 Kg), and wherein the rope members are each covered by a polyester fabric sheath.
- 2. A streamer as claimed in claim 1, wherein the spacers are each formed from a respective material having a particular relative density, the spacers being distributed along the streamer according to their respective densities to achieve a desired buoyancy characteristic.
- 3. A streamer as claimed in claim 2 wherein the spacers are molded plastic spacers formed from materials having densities in range of 0.5-1.8.
- 4. A streamer as claimed in claim 3 wherein the spacers are each made from one of polypropylene, polyacetal or polyurethane resin.
- 5. A streamer as claimed in claim 1, wherein each spacer has apertures therein through which the rope members and electrical cables pass, the apertures being located in the spacer to leave a cruciform load support in the center thereof.
- 6. A streamer as claimed in claim 1 wherein the load carrying rope members are formed from liquid crystal polymer fiber which is braided or twisted into rope.
- 7. A seismic streamer as claimed in claim 1 wherein the liquid is an aqueous medium.
Priority Claims (1)
Number |
Date |
Country |
Kind |
9610541 |
Jun 1996 |
GBX |
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Parent Case Info
This is a continuation-in-part of U.S. patent application Ser. No. 08/652,978, filed May 24, 1996, abandoned.
US Referenced Citations (11)
Foreign Referenced Citations (1)
Number |
Date |
Country |
WO 9303402 |
Feb 1993 |
WOX |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
652978 |
May 1996 |
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