E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/51
E21B 43/01 (2006.01)
Patent
CA 1195239
OIL COLLECTOR FOR SUBSEA BLOWOUTS Abstract of the Disclosure A collector apparatus and collection method for use with a blown-out seabottom wellhead. The collector apparatus, including a collector element with an extended, open base and an upper portion enclosing a volume to receive fluid (substantial quantities of gas and lesser quantities of oil) rising, in the water, from the wellhead, and a riser connected to the collector element and extending thereabove to conduct fluid therefrom, is characterized in that the collector element is adapted for fixable attachment to the ocean floor about the seabottom wellhead prior to any blow-out, and the upper portion of the collector element further includes a relief passage from its interior to the exterior of the collector apparatus, the release passage adapted to vent excess gas from the collector apparatus during initial stages of any blow-out. In preferred embodiments, the relief passage is valved to allow the passage to be closed after the initial stages of any blow-out to limit escape of released oil and reduce the amount of water collected and the collector includes a drilling port adapted to allow drilling operations to proceed therethrough.
413662
Massachusetts Institute Of Technology
Riches Mckenzie & Herbert Llp
LandOfFree
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