Assessment of Changes in the Abrasiveness of Solid Particles in Hydraulic Mixtures Pumped with ESPs

The statistics of using downhole electric submersible pump (ESP) units in the oil fields Eurasia show that hydroabrasive wear is a common cause ESP emergency failures. authors this study theoretically and experimentally investigated peculiarities water–abrasive components. research methodology construction laboratory bench are described, results experimental studies determination changes abrasivity index impurity particles contained mixture pumped with working stages an section given. It shown large mechanical impurities contact metal subjected to intensive grinding up 0.25…0.3 mm; after that, particle size remains practically unchanged. An increased abrasiveness causes increase intensity interstage seals along flow (from inlet outlet pumping section). Based on obtained results, recommendations for selection devices formation-fluid cleaning during development operation wells relevance work improving design substantiated.