What is the nod?
The nodding of the donkey is the type of pump that is commonly used to extraction of oil if the oil is not naturally transmitted to the surface by internal pressure. The device has a component that carries similarity to the donkey or head of the horse that moves up and down during operation. This vertical movement causes the long saker rod to move through the drilling of the well that activates the pump at the lower end. The oil or emulsion of water and oil is then forced to the surface where it can be collected. The nod of the donkey pumps are commonly known as pump connectors, although other terms such as thirsty bird, horse pump and grasshopper are also used. Since oil deposits tend to be pressure, drilling pipes to delivery is often everything needed to stretch the oil to the surface. This is not always the case, and even a well that starts at pressure can lose this pressure because the deposit is exhausted. If the pressure at the bottom end of the pipe is not large enough to force oil up, then a type of black is usually requiredShe fell. The pump connectors were first designed around 1925 to solve this problem and similar designs are still used.
pump connectors are usually associated with wells that do not produce a large amount of oil, which are often referred to as stripper wells. Some of these holes simply lack large oil deposits, while others are exhausted over time. Many of them produce 10 barrels or less oil each day. About five to 40 liters (about 1.3 to 10.5 gallons) of liquid can be drawn for each stroke of donkey depending on the configuration.
The basic design of the donkey is consisting of a scaffold mounted beam to lean forward and backwards. One end of the beam has a component that resembles a donkey head, and the other usually has a pitman's arm attached to the counter. The end with the counterweight is also connected to the component that is able to power the device.
Early versions of the nod of donkey were driven by rods that connected to a device called central power. This energy source often dominated many pump connectors at the same time, although modern versions often use individual electric motors. In both cases, the energy source rotates the counterweight that pushs the Pitman's shoulder up and down. This, in turn, causes a nod of donkey to perform an action for which it is named. The pump at the lower end of the well is then controlled by the suction tank, which is connected to the pump connector.