Sedco-250 Wreck
| Field | Value |
|---|---|
| Wreck Category | dangerous wreck |
|
Sedco-250 Wreck Location Marine Coordinates (DMM) |
5 12.172 S,11 54.411 E |
| Latitude, Longitude Decimal Degrees |
|
| Water Depth | 42 m |
| Water Level Effect | always under water/submerged |
| Vertical Datum | Approximate Lowest Astronomical Tide |
| Name | SEDCO-250 |
| Type | Platform |
| Flag | PA |
| Conspic Visual | not visually conspicuous |
| Conspic Radar | not radar conspicuous |
| Date Sunk | Jun 1, 1981 |
| Original Detection Year | 1981 |
| Last Detection Year | 1987 |
| Original Source | Lloyd's and Marine Underwriter's reports |
| Surveying Details | H5309/79 10.6.81 H5309/79 10.6.81 COLLAPSED IN 051158S, 115429E IN 140FT OF WATER. SMALL PORTIONS OF PLATFORM STILL VISIBLE ABOVE WATER AND SPEWING GAS. (LL, 2.6.81 & HYDROLANT 829/81). CHART AS DWPA. - NM 1426/81. H5309/79 16.6.81 H5309/79 16.6.81 BLOW-OUT CONTINUES. (LL, 13.6.81). NCA. 10.2.82 10.2.82 WELL HAS BEEN BLOWING SINCE MAY '81, BUT UNDER CONTOL AND FLARE OUT. (LL, 11.2.82). NCA. H3598/87 23.11.87 H3598/87 23.11.87 POSN 051200S, 115442E APPROX. (FRENCH NM 44/54/87). NCA. 11.2.14 SEP 2013/000278615 11.2.14 [WGD] POSN: 0512.1719S, 1154.4114E [WGD]. (CHEVRON AFRICA-MIDDLE EAST DRAWING). NC 3291. |
| Last Amended Date | Feb 11, 2014 |
Circumstances of loss
2.6.81 OVERTURNED, APPARENTLY WHEN LEAKING GAS FROM WELL ON WHICH IT WAS WORKING, WEAKENED THE SEABED AND CREATED A CRATER. (LL, 2.6.81).
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