摘要
根据理论推导得出应用段塞测试压力数据可确定非自喷井IPR曲线。经理论推导得出 ,在半对数图中段塞流压力恢复压差函数与时间呈直线关系 ,由该直线斜率可以求得油井极限产液指数 ,从而可求得油井最大产液量和不同流压下的产液量。通过矿场应用证明 ,该方法是可行的 ,误差小于 2 %。
Base on theory derivation, a method is presented to determine IPR curves of non flowing wells by DST data. It is claimed that relationship of pressure buildup difference versus time is accorded with a straight line. The slope of the line can be used to obtain a ultimate index of liquid production. Liquid rate of both in maximum situation and in different flow pressures can be acquired by the index. It is validated by filed application in which the relative error is less than 2%.
出处
《油气井测试》
2002年第5期16-17,共2页
Well Testing
