[Free in Texas]

A 65,000’ hose @ 1/32 in. I.D. (.03125 in.) would hold 2.157+/- Imp. Gals. based on:

Radius of 0.015625 in. squared = .00024414 x Pi = .0007666 sq. in. x 65000 = 48.829 x 12 = 597.9 cu.in./277.2(cu. in./Imp.Gal.) = 2.157 Gal.

So 18 Lbs for the water itself @ 8.37 Lbs./Gal and 28,145 Lbs for the fluid column @ .433 PSIG/Ft.

I’ve never been a math guy (feel free to correct any errors), but I’ve seen hydraulic fluid get injected into a power tongs operator’s arm when a hydraulic line popped @ about 1800 PSI or so (his crew told us the PSI) when I was roughnecking. I would want to be anywhere near one of these insane contraptions.

[Free in Texas]

Should be I would NOT want to be....Doh!

[Yo-Yo]

Nice analysis, and I admit I'm surprised at how little water 65,000' of 1/32 ID pipe holds.

They actally want to pump SO₂ to 65,000', and are only going to pump water to 1 km as a test.

I'm not a math guy or a chemist, but Sulfur Dioxide condenses to a liquid at -10°C at STP, so it may be possible to pump it all the way to 65,000' because it may change phase at some point in the trip up (lower pressure at altitude means lower boiling point.)

So it might be feasible to do what they say. I'm not sure what presssures at sea level would be involved when pumping SO₂ to 65,000' but I wouldn't be surprised if the pressures are similar to pumping H₂O one kilometer...