摘要
在直角坐标系下 ,将井底压力恢复资料绘成Pt曲线 ,在曲线上任取两个时间点 (t1,t2 ) ,第 3点 (t3 )取其平均值 ,读出对应的P1,P2 和P3 值 ,并求出时间曲线的斜率 ,即可根据图版求出产率指数。选点时 ,t1和t2 间隔不宜过小 ,t1一般选取 4 0min左右 ,t2 选取 30 0min左右。该方法主要依据段塞流测试理论而建立。
Use data of bottom pressure restoration of well with right angle coordinate system to draw P-T curve,and then chose two time-points (t 1,t 2) at random from the curve,chose 3rd point(t 3) from the average value,read out corresponding P 1,P 2 and P 3 value,produce time curve slope and productivity index on the basis of the plate.Interval between each point shall be chosen as following rule;interval between t 1 and t 2 shall not be too small,40mm for t 1 and 300mm for t 2.The establishment of this method is mainly on the basis of theory of slug flow test.Predicative results got from an oil field in eastern China by this method are almost as same as practical testing results.
出处
《石油与天然气地质》
EI
CAS
CSCD
北大核心
2002年第2期194-195,共2页
Oil & Gas Geology
关键词
非自喷井
段塞测试
产率
应用
non flowing well
slug flowing test
productivity
application
