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GeneralRe: TWCP OTD - 23th ofMarch, 2017 Pin
PIEBALDconsult23-Mar-17 11:14
mvePIEBALDconsult23-Mar-17 11:14 
GeneralRe: TWCP OTD - 23th ofMarch, 2017 Pin
Gary R. Wheeler23-Mar-17 11:58
Gary R. Wheeler23-Mar-17 11:58 
GeneralRe: TWCP OTD - 23th ofMarch, 2017 Pin
virang_2123-Mar-17 17:46
virang_2123-Mar-17 17:46 
GeneralWay cool Space Engineering Of The Day. Pin
Maximilien23-Mar-17 7:14
Maximilien23-Mar-17 7:14 
GeneralRe: Way cool Space Engineering Of The Day. Pin
TheGreatAndPowerfulOz23-Mar-17 7:32
TheGreatAndPowerfulOz23-Mar-17 7:32 
GeneralRe: Way cool Space Engineering Of The Day. Pin
gardnerp23-Mar-17 8:36
gardnerp23-Mar-17 8:36 
GeneralRe: Way cool Space Engineering Of The Day. Pin
W Balboos, GHB23-Mar-17 8:26
W Balboos, GHB23-Mar-17 8:26 
GeneralRe: Way cool Space Engineering Of The Day. [modified] Pin
H.Brydon23-Mar-17 16:34
professionalH.Brydon23-Mar-17 16:34 
I worked on the other end of the pressure spectrum with high pressures in the oilfield biz.

A well logging tool is assembled at room temperature and atmospheric pressure, with two 3.5 inch O rings holding back external wellsite pressures when going down the hole. I don't know the numbers but tools would routinely go deeper than 20,000 feet in drilling mud of density up to about 9+ lb/US gallon (fresh water is 8.34 lb/gal).

One of my operators had a waterproof watch he didn't like and the store wouldn't let him return it. He strapped it to the back of one of the caliper tools, ran it into the well and returned the resulting mess to get his money back.

[later]
Okay, found the magic formula...

Hydrostatic pressure, psi = lb./gal x 0.052 x depth (ft)

For 20000 feet depth, 9 lb/gal mud, pressure = 9 * 0.052 * 20000
or 9360 psi (about 625 atmospheres)

Not outrageously impressive but that is all held back by two little O rings. That's a little more than the fraction of an atmosphere in the space station...

Sorry for the non-metric units. Hazard of working in the oil biz...
I'm retired. There's a nap for that...
- Harvey

GeneralRe: Way cool Space Engineering Of The Day. [modified] Pin
W Balboos, GHB24-Mar-17 2:43
W Balboos, GHB24-Mar-17 2:43 
GeneralRe: Way cool Space Engineering Of The Day. Pin
Mark_Wallace23-Mar-17 11:00
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