Does anyone know of a supplier that I could purchase a fairly low cost temperature sensor to run in shallow water wells?
Max temp expected is about 80-90 degC and max depth is about 150-200m (fluid filled). Accuracy needs to be about 0.1degC. Doesn't need to be surface read out - memory mode more than adequate.
We want to log temp some shallow water wells prior to drilling the much deeper real exploration wells such that we can try to get an early handle on temp gradient in the region. It's just a little project at this stage, so need to keep costs low.
We used a company called Lotowater out of Canada (near Toronto) for this kind of work. They are very self contained (pretty much a bunch of Pelican cases) and they provide their own wireline in that kit. Need only one guy and a pickup truck, van, etc.
It was a remote location in the Canadian sub-Arctic - a bit different than Kenya, but maybe similar logistical issues.