摘要
在水平井射孔时,射孔器在水平段内总是紧贴井筒下壁,不能在井筒中居中。采用定向射孔,使得实际射孔孔眼与原来设计的具有一定角度和方位的偏差,主要有孔眼轨道产生的偏差、孔眼角度产生的偏差等。通过分析得知,此偏差对油气层的开发影响很小。
When performing in horizontal well,the perforator is laying side well at horizontal depth and can not be center in bore hole.By use of oriented perforator,a certain variance of angle and azimuth between actual perforated hole and former design is made which mainly caused by hole trace,perforated hole angle.Analysis and calculation show that the variance has little effect on the reservoir development.
出处
《油气井测试》
2007年第4期13-14,共2页
Well Testing
关键词
水平井
定向射孔
偏差
horizontal well,oriented perforation,variance
