Sucker rod

The sucker rod is a slender rod of a pumping well. It is connected with a polished rod on the top and a sucker pump on the bottom to transmit power.The single length of the sucker rod is 7.62 or 8 meters, 9.14m, and the material is generally low-carbon alloy steel after quenching and tempering. In the tubing, it is connected one by one with an internal thread hoop and extends to the piston at the underground oil layer. The oil is pumped by reciprocating motion. The length of the current oil well is generally about 2,000 meters. Taking Shengli Oilfield as an example, the deepest is more than 3,000 meters.