Abstract
Assessment of the original artificial lift systems installed in place to determine better means to produce the existing assets and thus looking for ways to optimize and reduce lifting costs for the operator. Reciprocating rod lift systems with ultra long stroke mechanical pumping units were recommended and implemented to help achieve the desired flow rates.
The existing artificial lift equipment was evaluated to determine if a more suitable alternative could be designed for the flow rates and depth encountered at the assets. This alternative included the use of reciprocating rod lift systems with an ultra-long stroke pumping unit, high strength sucker rods, custom tailored rod pump for the application, and automation equipment to match well inflow to displacement capacity throughout the pumping cycle.
Three wells were converted from previous installations with hydraulic lift systems to ultra-long stroke reciprocating rod lift systems. Among the observed results upon the conversions were completed were: Reduced power consumption therefore a minor lifting cost per barrel, reduced work over costs due to nature of the interventions, and reduced surveillance expense with the use of automation equipment allowing the operator to monitor the wells remotely.
The ultra-long stroke reciprocating rod lift systems increased the lifting efficiency, reduced production costs, and provided the operator with more flexibility for producing their asset.
