The original depth recorded while drilling an oil or gas well is known as the Driller's Depth.
Read more about Driller's Depth: The Problem, Dealing With Driller Depth Errors, Examples
Famous quotes containing the word depth:
“You are now
In London, that great sea, whose ebb and flow
At once is deaf and loud, and on the shore
Vomits its wrecks, and still howls on for more.
Yet in its depth what treasures!”
—Percy Bysshe Shelley (1792–1822)