dog leg
n.— «It deployed ESS in a well with the highest changes in well path direction, commonly called “dog leg” in oil field parlance.» —“SPDC Emerges World Leaders in ESS: Accounts for 55% of Shell Total” by Hector Igbikiowubo Vanguard (Lagos, Nigeria) Aug. 2, 2005. (source: Double-Tongued Dictionary)
Further reading
Asthenosphere, a geologist’s term for the molten layer beneath the earth’s crust, sparks a journey that stretches all the way from ancient Greece to the author of Uncle Tom’s Cabin. Plus: What the heck is a dogberg? It’s when...
What exactly is a planet? Controversy over this question led to Pluto’s redefinition, along with a brand-new English word. And: Some people now use the phrase all the things! to mean and whatnot or you know what I mean. This new sense of all...