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Please excuse me if i sound stupid here, but if he1 went to total depth and now drilling shallower than before what exactly are they looking to achieve as they have already drilled to total depth why couldnt they test the shallower sections on Ta1? Thanks in advice for any advice
@jezz - i think they are trying to work out why they got the first show in the drill mud from the lake bed formations. If you look on their website they have identified potential inversion structures in the lake beds that could be a reservoir........but .....if seismic had identified one in this position then surely they would have drilled it first ?
I wish the RNS's and interviews would go into more detail about their reasoning.....but you just have to trust that they are making the best decision in the circumstances.
I've sold out a lot now and will let my profit run. I think its gonna be a traders share and i haven't got the time to be online all the time keeping track of it to take advantage. Good Luck
Thanks guys
There were a few posts that mentioned the insurance for wireline testing and equipment. I am just guessing, but it may be that after the wireline got caught on the ledges at 880m, the insurance clauses kicked in and voided further testing in that hole. 2 of the testing elements are radioactive, so they would not be able to use the equipment if the insurance was not in place.
At least that's my guess on why they wouldn't just crack the casing and test like they originally planned.
Cheers glib, think there seems a few of us wondering the same thing
If they can extract He from nitrogen why the chuffing Queen Mary cannot they extract He from brine or any other liquid, I am quite happy to remain unenlightened, but this itches
Helium is barely soluble in water, about 1/3 as soluble as oxygen which is also relatively insoluble. (and why we need red blood cells and hemoglobin to carry it around in our bodies. It is so insoluble that it bubbles to surface in those springs rather than dissolving in the water.
You would have to process incredible amounts of water to get meaningful amounts of helium..
Some numbers:
1. helium is 5 parts per million in air or 0.000005%. That compares to 5 % in very high grade commercial subsurface gas samples and 11% in those bubbles at Rukwa springs. Subsurface gas (usually as part of natural gas mixture but sometimes primary helium with nitrogen) can have a million times more helium than air.
2. 1 CF of helium gas under standard conditions has 28.2 grams of helium. Water fully saturated with helium (most insoluble gas) has .0013 grams of helium per kg of water or .0052 grams per gallon of water. If water is fully saturated then it would take 5000 gallons of water to extract 1 cf of helium, or 5 million gallons of water to extract 1 MCF of helium. And the extraction is difficult and costly and incomplete.
Anyway there is no plausible path to getting helium from air and even less so from helium dissolved in water. Depending on how fizzy the water is (the fizz is helium mixed with nitrogen that won't dissolve in the water), maybe that helium could be bubbled out of the subsurface water and collected, but that sounds a whole lot more difficult (and low volume with chance of commercial volumes almost impossible - otherwise why not just collect and process the water of those springs) than finding a gas source that is 5-10% helium and just separating it and venting off the nitrogen.
ndn - if you stopped and cased every 5m, you would need to reduce drill size each time, so you wouldn't get very far down!
You would think though that there would be a way after the drill had been raised to have a cement impregnated stocking or liner be sent down on a wireline which would allow the hole diameter to be preserved and the problem with ledges be minimised. Not that i'm ticked off that they can't test all of Tai-1...
"cement impregnated stocking or liner"
LOL, give it a break especially when you don't know what you are taking about.
We've had plenty of positive news and huge amount more to come. This will be filing all my 99 balloons and more, no stocking required.