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The line of sucker rods is represented in this diagram by the solid black line in the center of the well. A sucker rod is a steel rod, typically between 7 and 9 metres (25 and 30 ft) in length, and threaded at both ends, used in the oil industry to join together the surface and downhole components of a reciprocating piston pump installed in an oil well.
The prime mover runs a set of pulleys to the transmission, often a double-reduction gearbox, which drives a pair of cranks, generally with counterweights installed on them to offset the weight of the heavy rod assembly. The cranks raise and lower one end of an I-beam which is free to move on an A-frame. On the other end of the beam is a curved ...
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The northern hogsucker (Hypentelium nigricans) is a freshwater ray-finned fish belonging to the family Catostomidae, the suckers.It is native to the United States and Canada where it is found in streams and rivers.
The river carpsucker (Carpiodes carpio) is a freshwater fish belonging to the Catostomidae that is native to the inland United States and northern Mexico. This species has a slightly arched back and is somewhat stout and compressed.
Creek chubsuckers are one of about sixty-two species of in the family Catostomidae. All but two species are endemic to North America, [5] and creek chubsuckers can be found in many of the freshwater tributaries of the Atlantic slope streams from Maine to Altamaha drainage of Georgia; Gulf slope streams east to Escambia River drainage, Alabama (single population), west to San Jacinto system ...