downhole

English

Alternative forms

• down-hole

Etymology

down- +‎ hole

Adjective

downhole

1. (oil industry) Located in the drilled bore of an oil well either underground or undersea.
   • 2005, Paul Carter, Don't Tell Mum I Work on the Rigs, Crows Nest: Allen and Unwin, page 44:

     In the work over, part of the new "string" was a down-hole titanium gauge.

   • 2015, Ronald DiPippo, Geothermal Power Plants:

     Pressure readings are taken downhole next to the feed zone and the total flow is measured on the surface using a separator.