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how big was the drill on that oil rig in radii or dia ?
60,000 x 42 barrel gallons =2,520,000 gallons a day
2,520,000./’ 24 ./’ 60 = 1750 gallons per minute
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231 cubic inches = 1 gallon
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1750 x 231 = 404250 cubic inches per minute
404250 ./’ 60 seconds = 6737.5 cubic inches per second
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6737.5 ./’ 231 = 29.1667 gallons per second
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oil per pound = about 6.84 pounds refined
29.1667 x 6.84 = 199.5 pounds per second
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pipe volume 3.142 x radii 2.0 inch squared x 16 inches = 201.1
Or - pipe 4 inch dia x 16 inches per second
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pipe volume 3.142 x radii 4.0 inch squared x 4 inches = 201.1
Or - pipe 8 inch dia x 4 inches per second
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Q - how big is the DIA of that pipe dumping oil in the gulf ?
Q - Mexico why do we here nothing about there shore line ?
1 Answer
- Bad Moon RisingLv 71 decade agoFavorite Answer
The riser was 21.5 inches in diameter but the hole itself had numerous drill bit diameters ranging from 36 inch near surface then 28, 22,18,16,13 5/8,11 7/8,9 7/8, 7 inch final production string.
These are the casing sizes so the bit diameter is a bit greater.
If you are trying to calculate flow capacity, then forget it since the well is flowing up the 7 inch casing, but alo in the annulus behind it to 9 7/8 hole diameter. You also need the flowing pressure which is unknown. The Bottom hole pressure at 18000 feet is about14,300 psi and the weight of the column of oil might vary anywhere from 0.15 psi/ft to 0.35 psi/ft depending on gas surging. The best way to estimate flow is that there is probably no cement at all in the annulus so the flow is virtually unimpede. BP said the flow capacity maximum was 75,000 barrels per day initially so it is a good bet that the flow is 60,000+ barrels per day, since I doubt that they included another zone that caused the problem that is also flowing oil and a lot of gas!
