downhole
adjective
- (in the oil industry) used, occurring, or performed in a well or borehole
adverb
- (in the oil industry) in or into a well or borehole
noun
- a hole dug or drilled downward, as in a mine or a petroleum or gas well
Wiktionary
adj
Etymology: Etymology tree English down- Proto-Germanic *hulaz Proto-Germanic *hulą Proto-West Germanic *hol Old English hol Middle English hole English hole English downhole From down- + hole.
- Located in the drilled bore of an oil well either underground or undersea.
“In the work over, part of the new "string" was a down-hole titanium gauge.”
“Pressure readings are taken downhole next to the feed zone and the total flow is measured on the surface using a separator.”