nodding donkey in the Oil and Gas IndustryPowered by COBUILD (nɒdɪŋ dɒŋki)
Word forms: (regular plural) nodding donkeys
(Extractive engineering: Field development, Equipment) A noddingdonkey is a type of reciprocating pump (= one which uses a backward and forward movement), used to extract oil from an onshore well. ⇒ Nodding donkeys are reciprocating pumps used in onshore oilfields to bring oil to the surface. ⇒ A nodding donkey pumps oil from onshore wells, and gets its name from the movement it makes. ⇒ A nodding donkey is a type of reciprocating pump, used to extract oil from an onshore well.