Fire damage protected offshore oil producing rig |
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| 申请号 | US3771604D | 申请日 | 1972-04-06 | 公开(公告)号 | US3771604A | 公开(公告)日 | 1973-11-13 |
| 申请人 | BARRON R; NORMAN R; | 发明人 | NORMAN R; BARRON R; | ||||
| 摘要 | A method and means for protecting the structural integrity of offshore oil and gas producing rigs from damage due to blowout fires. The invention includes vertical, tubular members which form passageways for water and are in fluid communication with cross members providing lateral support. The water may be pumped either through an inlet depending into the water and positioned between the surrounding tubular members and then forced throughout the tubular members by a pump that is supported on a lower platform above or below the lower surface of the water, alternatively an independent vessel may be connected to one or more of the tubular members by means of a subsea line to circulate water from the sea through each of the tubular and cross members. Nozzles may be positioned on the tubular members pointing inwardly and downwardly toward the wellhead to provide a spray that may be directed into a flame and also used to direct a cooling stream to anyone of the platforms. | ||||||
| 权利要求 | 1. A method of protecting the structural integrity of an offshore oil producing rig from damage during a blowout fire comprising: supporting said rig with interconnected tubular members, conducting water through said members throughout said rig to reduce the temperature of said members during a blowout fire and prevent deformation due to heat. 2. The method of claim 1 including supplying said water from the sea. 3. The method of claim 1 including spraying said water into the interior of said rig. 4. The method of claim 1 including supplying said water from a vessel and connecting said vessel to said members by a subsea inlet. 5. The method of claim 2 including pumping said water from a source of power located adjacent the surface of the sea. 6. An offshore oil producing rig protected from damage during a blowout fire comprising: at least four substantially vertical tubular members extending above the sea level and anchored below the sea level into the bottom to provide support for said rig, a plurality of hollow cross members extending between and in fluid communication with said vertical tubular members, inlet means extending below the surface of said sea and in fluid communication with said members extending above said sea level, power means in fluid communication with said inlet means to pump water throughout said cross members and tubular members to reduce the temperature of said members during a blowout fire in said rig and prevent heat deformation of said members and said rig. 7. The rig of claim 6 including said power means consisting of a pump supported on said rig adjacent said tubular members. 8. The rig of claim 7 including said inlet means being a separate vertical member connected to the inlet side of said pump and extending into the sea between said tubular members. 9. The rig of claim 6 including said inlet means being fluidly connected to said vertical member above said sea surface. 10. The rig of claim 6 including a plurality of spray nozzles fluidly connected to said members, said nozzles being directed inwardly into the interior of said rig and adapted to spray water onto the source of the fire. 11. The rig of claim 6 including said power means consisting of a pump supported on said rig adjacent said tubular members and a plurality of spray nozzles fluidly connected to said members, said nozzles being directed inwardly into the interior of said rig and adapted to spray water onto the source of the fire. 12. The rig of claim 6 including said power means consisting of a pump supported on said rig adjacent said tubular members, said inlet means being a separate vertical member connected to the inlet side of said pump and extending into the sea between said tubular members, and a plurality of spray nozzles fluidly connected to said members, said nozzles being directed inwardly into the interior of said rig and adapted to spray water onto the source of the fire. 13. The rig of claim 6 including said power means consisting of a pump supported on said rig adjacent said tubular members, said inlet means being fluidly connected to said vertical member above said sea surface, and a plurality of spray nozzles fluidly connected to said members, said nozzles being directed inwardly into the interior of said rig and adapted to spray water onto the source of the fire. |
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