Reseach and Application of Dynamic Sanding Prediction in Donghe Oilfield
塔里木盆地东河油田机械防砂物理实验研究

Donghe Oilfield of the Tarim Basin is an ultra deep sandstone reservoir. The compaction of formation rock is good. According to prediction study and pilot tests, it would not produce sand. However, after it was put into production, sand production gradually occured, and became more and more serious year by year, owing to the significant reservoir pressure drawdown and water-cut increase. How to dynamically predict the sand production according to the changing reservoir conditions during the reservoir devel opment is a key issue both in theory and in practice. This paper proposes two modification factors and which reflect the influence of pressure drawdown and water cut increase respectively. Using the revised formula, the calculation results and prediction conclusions match the reservoir situations very well. The proposed new idea and method provide a valuable reference to sand control Of other sandstone reservoirs.