The degreeofformation denudation and fault activity are the key factors to oil and gas preservation.
地层剥蚀程度和断层的活动性是油气保存的关键因素。
2
Acidizing fluids' type, concentration, jet pulse frequency, treatment time and interval treated may be selected according to degreeofformation plugging.
该工艺可根据地层堵塞情况及程度，选择酸液种类、酸液浓度、射流脉冲频率、处理时间和处理层位。
3
The injury degreeof waist, the concrete part of lumbar spine epiphyseal injury and the change degreeofformation structure of spinal column and waist segment were observed mainly.