油层出砂预测

Prediction on Formation Sand Production

油气井的出砂已经成为困扰疏松油藏生产的一个严重问题。科学有效地进行出砂预测对于指导油田高效开发具有重要意义。随着井底流压降至某一临界值,岩石骨架开始出现屈服。屈服带随出砂量的增加沿井径向外扩张。针对绥中36-1油田疏松砂岩油藏建立出砂预测模型,计算出砂量,在实际应用中取得了较好的效果。

Sand production in oil and gas wells has become a serious problem for unconsolidated reservoir production. It is of great importance to predict sand production scientifically and effectively for guiding the effective production in the oilfields. When the flowing bottom hole pressure decreases to a critical value, the matrix will begin to yield . Yield front propagates away from the wellbore with the process of sand production. Sand production in SuiZhong 36-1 oilfield can be calculated according to sand prediction model, gaining good results.