At my last company I drilled 4 horizontal wells off a single pad on the side of a valley. At the bottom of the valley was an acid gas disposal well - meaning high concentration H2S and C02. They had a loud siren set up in case of a release, and the emergency exit was immediately up the side of the valley through/past our lease.
When I was 20, I had a job drilling for natural gas offshore. One week we started getting hydrogen sulfide gas coming up out of the well. They assured us that if you can still smell it, it's not at lethal levels...Because if it hits ( I think it was 15 parts per million) it destroys the part of your brain that handles smell.. and then you're dead. But at 11 parts per million you can still smell it and YOU WOULDN'T BELIEVE THE HEADACHES IT GIVES YOU... fuuuuuuuck.. Like someone setting fire to old stereo equipment in your skull while giving your brain a good going over with a cheese shredder.... That shit being heavier than air, had a tendency to pool in the lower areas of the hold, so when I had to go fetch stuff for the cook, I tended to hold my breath while down in the hold.At my last company I drilled 4 horizontal wells off a single pad on the side of a valley. At the bottom of the valley was an acid gas disposal well - meaning high concentration H2S and C02. They had a loud siren set up in case of a release, and the emergency exit was immediately up the side of the valley through/past our lease.
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100 ppm is when it blasts your sense of smell.When I was 20, I had a job drilling for natural gas offshore. One week we started getting hydrogen sulfide gas coming up out of the well. They assured us that if you can still smell it, it's not at lethal levels...Because if it hits ( I think it was 15 parts per million) it destroys the part of your brain that handles smell.. and then you're dead. But at 11 parts per million you can still smell it and YOU WOULDN'T BELIEVE THE HEADACHES IT GIVES YOU... fuuuuuuuck.. Like someone setting fire to old stereo equipment in your skull while giving your brain a good going over with a cheese shredder.... That shit being heavier than air, had a tendency to pool in the lower areas of the hold, so when I had to go fetch stuff for the cook, I tended to hold my breath while down in the hold.
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When I was 20, I had a job drilling for natural gas offshore. One week we started getting hydrogen sulfide gas coming up out of the well. They assured us that if you can still smell it, it's not at lethal levels...Because if it hits ( I think it was 15 parts per million) it destroys the part of your brain that handles smell.. and then you're dead. But at 11 parts per million you can still smell it and YOU WOULDN'T BELIEVE THE HEADACHES IT GIVES YOU... fuuuuuuuck.. Like someone setting fire to old stereo equipment in your skull while giving your brain a good going over with a cheese shredder.... That shit being heavier than air, had a tendency to pool in the lower areas of the hold, so when I had to go fetch stuff for the cook, I tended to hold my breath while down in the hold.
unrelated pic
This stuff reminds me of the Lake Nyos disaster.At my last company I drilled 4 horizontal wells off a single pad on the side of a valley. At the bottom of the valley was an acid gas disposal well - meaning high concentration H2S and C02. They had a loud siren set up in case of a release, and the emergency exit was immediately up the side of the valley through/past our lease.
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