Pilot Test Results for Promising Drives of Sucker-Rod Pumping Units

摘要

The article analyzes the structural design of drives for sucker-rod pumping units (SRPU) used at oil production. It is important to make operation of pumping units of oil production more efficient, i.e. to reduce specific power consumption when extracting formation fluids, to make pumping unit assemblies more reliable, to implement intelligent monitoring and control stations for comprehensive assessment of well SRPU system performance as well as to control drive parameters within a wide range. Hereby, we present results of pilot tests of hydraulic SRPU drives and mechanical drives, i.e. pumpjacks equipped with permanent magnet synchronous motors and VLT SALT intelligent control stations. It is proven that hydraulic SRPU drives are optimal for developing newly commissioned wells, for periodic and short-term operation of wells, as well as removing asphaltene deposits. Equipping mechanical pumpjacks with permanent magnet synchronous motors (PMSM) and intelligent control stations helps automating oil production, reducing specific power consumption, and making equipment more reliable and efficient.