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Described here are 13 downhole and surface equipment developments from 11 companies. Part 2, coming in May, will present electrical submersible pumping (ESP) and other artificial lift innovations.
Sucker rod pumping, in many cases, evolved from classic beam pumps to include tower type units. It is the most widely used artificial lift, usually using vertical rod motions, but now also with cable, to operate a downhole reciprocating pump. PCP systems are based on a surface drive rotating a rod string, which drives a downhole pump rotor operating within an elastomeric stator. Gas well deliquefying removes liquid covering the producing formation to increase gas production. Jet pumping uses the velocity of injected power fluid to reduce pressure in a downhole jet, causing inflow of produced fluid, and lift to surface. Gas lift uses downhole valves to inject annulus gas into the tubing under liquid columns, or under optional plungers, to reduce column density...
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