| 摘要 |
PCT No. PCT/GB90/01484 Sec. 371 Date May 27, 1992 Sec. 102(e) Date May 27, 1992 PCT Filed Sep. 28, 1990 PCT Pub. No. WO91/05133 PCT Pub. Date Apr. 18, 1991.An anti-fouling covering is applied to a tubular offshore structure to prevent fouling tubular goods by marine growth. The covering comprises metal sheeting which is deformed to provide spaced ridges or troughs which extend on the covering in the axial direction of the tubular goods. The deformations facilitate expansion and contraction of the covering but, especially when inwardly directed trough form, enable the covering to have substantially smooth exterior so that loading due to wave impingement can be reduced. |
