Sand Failure Mechanism and Sanding Parameters in Niger Delta Oil Reservoirs

ABSTRACT

Sand production is a major issue during oil and gas production from unconsolidated reservoirs. In predicting the

onset of sand production. it is important to accurately determine the failure mechanism and the contributing

parameters. The aim of this study wa to determine sand failure mechanism in the Niger-Delta. identify the

major contributing parameters and evaluate their effects on sanding.

Completion and production data from 78 strings completed on 22 reservoirs in a Niger Delta oil Field were

evaluated. Sand failure mechanisms and contributing parameters were identified and compared with published

profiles. The results showed that cohesive stress is the predominant sand failure mechanism. Water cut. bean

size and gas oil ratio (GaR) impact sand production in the Niger Delta.

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