Beam Pumping Units
If the well doesn't produce adequately, a beam pumping unit may be installed.
A beam pumping unit is a machine designed specifically for sucker rod pumping used to lift fluid to the surface by the reciprocating action of the sucker rod string. An engine or motor (prime mover) is mounted on the unit to power a rotating crank. The crank moves a horizontal member (walking beam) up and down to produce reciprocating motion. This reciprocating motion operates the pump.
There are four basic types of beam pumping units. Three involve a walking beam, which seesaws to provide the up and down reciprocating motion to power the pump. The fourth reciprocates by winding a cable on and off a rotating drum. The job of all four types is to change the circular motion of an engine to the reciprocating motion of the pump.
The pump units are brought in disassembled on trucks and off-loaded onsite. The many parts of the pump unit include large heavy metal pieces that need to be assembled.
Possible Hazard:
- being pinched, struck, or crushed by falling or swinging parts during assembly
Possible Solutions:
- Ensure the work crew understands the assembly procedures and hazards involved in the tasks.
- Wear appropriate PPE.
Knowledge Check Choose the best answer for the question.
2-9. What are possible hazards while assembling beam pumping units?
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