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.
Inclinometer is an Instrument testing drift Angle and azimuth of drift hole.
斜仪是一种测定钻孔倾角和方位角的仪器。
3
And the variation law of the hole collapse pressure of extended reach well along with holeAngle and azimuth mostly decided by the status of the stratigraphic in-situ stress.