The Problem of Equipment Erosion in Western Siberian Oilfields

Abstract

Abstract

This study addresses the operational challenges of developing hard-to-recover reserves such as heavy-oil rims in weakly consolidated sandstone reservoirs of Western Siberia, which account for a significant share of Russia’s resource base. The core challenge is the inevitable solid production during extraction, leading to abrasive wear, erosion, plugging of downhole pumping equipment, frequent failures, and substantial economic losses. The objective of this work is a comprehensive analysis of the causes of sand production and related equipment failures by integrating published research with field failure data. The research methodology includes an analysis of scientific publications and a statistical review of the causes and frequency of Electrical Submersible Pump (ESP) failures in wells produced by the PK formation. The results show that the primary failure causes are erosive wear (predominantly in medium-rate deviated wells) and plugging by produced solids (predominantly in low-rate horizontal wells), which correlate with sand transport regimes and the particle size distribution (PSD) of produced solids. The failure frequency was found to be comparable across different well types, but the equipment damage mechanisms differed significantly. The discussion confirms the necessity for an integrated approach to modeling the “reservoir–sand control screen–wellbore” system to optimize operating parameters and select effective sand control techniques.