塔里木东河油田出砂动态预测研究  

Study on Dynamic Sanding Prediction in Donghe Oilfield,Tarim Basin

作　　者：祁大晟[1] 项琳娜[1] 裴柏林[1] 

机构地区：[1]中国石油大学石油天然气工程学院,北京102249

出　　处：《新疆石油地质》2008年第3期341-343,共3页Xinjiang Petroleum Geology

摘　　要：塔里木东河油田属超深砂岩油藏,储集层岩石压实作用好,开发初期预测为不出砂,因此在油田开发时没有采取任何防砂措施。但在开发过程中,由于压力下降和含水率上升,岩石的应力状况及胶结状态都发生了变化,油井出砂日益严重。分析了塔里木东河油田投入开发后出砂的主要影响因素,对传统的出砂预测公式引入了地层压力亏空因子和含水率因子2个修正项,用修正后的组合模量公式与斯伦贝谢法公式动态地对该油田的3口典型出砂井进行计算和分析,结果与油田实际情况吻合。此动态出砂预测法对其他砂岩油藏也有一定参考价值。Donghe oilfield in Tarim basin is an ultradeep sandstone reservoir with well compacted rocks. The prediction in the early phase of production was that it would not produce sand. So, no sand control measure was made after putting it into production. However, with reservoir pressure drawdown and water-cut increase during the production, the sand production became more and more serious. Following analysis of the main affecting factors, this paper proposes two modification factors （λ1 and λ2） for conventional sanding prediction formula. Using the modified formula, the calculation results and prediction conclusions match the reservoir conditions very well. This method could be as a guide for other sandstone reservoirs in dynamic sanding predictions or sand controls.

关 键 词：塔里木盆地 东河油田 出砂动态预测 地层压力 亏空因子 含水率 

分 类 号：TE331[石油与天然气工程—油气田开发工程]