And the variation law of the hole collapsepressure of extended reach well along with hole Angle and azimuth mostly decided by the status of the stratigraphic in-situ stress.
大位移井井壁坍塌压力随井斜角与井斜方位角的变化规律主要由地层的原地应力状态决定。
2
We did studies about the correlation of logging data and mechanics parameters of stratum by doing experiments so that the theory of fracture pressure and collapsepressure can become practical.
According to development data and the logging data, this paper studied the distribution of crustal stress and set up the collapsepressure model and formation fracture pressure prediction model.