地层压力预测技术及其在油层保护中的应用

简述了随钻监测、钻后检测、钻前预测和模拟等地层压力预测的技术的特点及其应用范围。介绍了有效应力法预测地层压力的原理及参数的求取方法。应用有效应力法地层压力预测软件为胜利油田压敏型地区提供了近200口探井的地层压力预测剖面，从实钻结果看，地层压力预测的符合率高，根据预测压力来平衡钻井，起到了保护油气层的良好效果。

FORMATION PRESSURE PREDICTION AND ITS APPLICATION IN RESERVOIR PROTECTION

This paper has reviewed the methods and application of formation prediction in different exploration stages and suggested an efficiency stress method for the need of reservoir protection.The formation pressure prediction by the efficiency stress method may offer dependable parameters for drilling design and balance pressure drilling.Pressure profiles about 200 wells have been predicted since this method was applied in Shengli Oilfield.The drilling results indicate that the predicted pressures are more coincident with the practical formation pressures than the pressures calculated by other means,and can be applied to balance pressure drilling.The results also present good effect of reservoir protection.