A colourful nodding donkey in the United States

A nodding donkey is the overground drive for a submersible pump in a borehole. A colourful nodding donkey in the United States File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... A colourful nodding donkey in the United States File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... A submersible pump is a pump which has a hermetically sealed motor close-coupled to the pump body. ... Water borehole in northern Uganda A borehole is a deep and narrow shaft in the ground used for abstraction of fluid or gas reserves below the earths surface. ...

A nodding donkey or horsehead pump is usually driven by an electric motor and 'nods' at a regular rhythm. Depending on the size of the submersible pump, it produces 5 to 40 litres of petroleum-water mixture at each stroke. A 2 inch (50 mm) diameter metal rod connects the head to the pump, located underground in the oil reservoir. Jump to: navigation, search Electric motors of various sizes. ... Rhythm (Greek ρυθμός = tempo) is the variation of the duration of sounds or other events over time. ... A submersible is another name for a submarine, and is the normal term for civilian and non-combatant military designs, particularly midget submarines. ... Manual pump used to obtain water A pump is a mechanical device used to move liquids or gases. ... The litre (spelled liter in American English) is a unit of volume. ... Jump to: navigation, search Nodding donkey pumping an oil well near Sarnia, Ontario, 2001 Petroleum (from Greek petr – rock and oleum – oil), crude oil, sometimes colloquially called black gold, is a thick, dark brown or greenish liquid. ... Jump to: navigation, search Water (from the Old English word wæter; c. ... Nothing!HAHAHAHAHA! ...

The electric motor (or, more rarely, a natural gas or diesel engine ) turns a pair of cranks, which by their action raise and lower one end of the beam. The other end of the beam has a curved end, resulting in the shape likened to a donkey or horse's head. This totally converts the rotary mechanism of the motor to a vertical reciprocating motion to drive the pump shaft. This is what sets up the characteristic nodding motion. Jump to: navigation, search The diesel engine is a type of internal combustion engine; more specifically, it is a compression ignition engine, in which the fuel is ignited by being suddenly exposed to the high temperature and pressure of a compressed gas containing oxygen (usually atmospheric air), rather than a...

This system is also commonly referred to as a beam pump, rod pump, grasshopper, thirsty bird, pump jack, or jack pump. This type of arrangement is commonly used in onshore applications for relatively low-production oil wells. An oil well is a laymans term for any perforation through the Earths surface designed to find and release both petroleum oil and gas hydrocarbons. ...