Once in a lifetime diving and opportunity.
"Once in a lifetime" could be interpreted a couple different ways... both relevant to the discussion.
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Once in a lifetime diving and opportunity.
Stupid question: How can we process helium from an LNG plant? We have good relationship with an LNG plant (ie. subcontractors for them). We are also in a remote part of Indonesia.. but would like to introduce tech diving.
Around mid 2019 I was unable to get even 300cf of helium now mid way through 2020 I am able to order as much as I want and my suppliers are saying there is no shortage for our area (great lakes). I believe some more helium projects have started up in recent months.
That said I will never dive helium willingly on OC ever again. Gas logistics have become quite easy thanks to ccr.
I wonder what the landscape will look like 10-20 years from now.
If there was something really grand to see at 200’ in some very remote part of the world, and there was no helium, only air and O2 (meaning any nitrox mixtures you desire) and O/C with any tank configuration you want, would you guys do it?
No.
Max 150...165 ft for me because of the effects of narcosis on short term memory, reasoning, motor control, hearing, vision, balance, awareness... I've done tests in a dry chamber at 50m/150ft and my short term memory (and hence, logic too) was failing already. I could not calculate expressions like (1+2+3 - 4) / 2 because storing intermediate results in my brain and memorizing the upcoming operation just simply failed. I've been at depth on air too (although only a few times), and what it does to ones senses (delay) is not pleasant. The old 120ft limit is a sensible one.
I know that there are people far more experienced in diving than me, who are more used to the effects of deep air, and can dive to greater depths, though. There are also some certifications available: https://psai.com/2016/01/29/psai-narcosis-management/
And I would bring an action cam, as my brain fails to record well at great depth. Performing tasks probably becomes possible if the task is a straight forward one that can be memorized on the surface.
There is absolutely zero reason to do deep dives on air anymore.