| 摘要 |
PCT No. PCT/FR96/01151 Sec. 371 Date Jun. 4, 1998 Sec. 102(e) Date Jun. 4, 1998 PCT Filed Jul. 22, 1996 PCT Pub. No. WO97/05011 PCT Pub. Date Feb. 13, 1997An off-shore oil production platform of the present invention includes an upper barge (1) stretching above the level of the sea. The barge (1) is connected to a completely submerged hollow lower base (3) by partially submerged connecting legs (2) forming a buoyance tank and stretching substantially vertical. The legs (2) along their submerged height includes at least two successive portions (10, 14). A first portion (10) with solid walls delimits a closed space and forms a buoyancy tank. A second portion (14) with openwork sidewall has an interior space open to a surrounding marine environment. |
