Limb orientation perforating gun and sectionalized two orientation delayed ignition technology were used in the test.
射孔运用了导向翼式定向枪，采用分段分次双向液压延时点火引爆工艺；
2
On the base of these theory, we workout the horizontal well sectionalized hydraulic fractured software including the convection affect.
以上述的基础理论研究模型为基础，编制了考虑对流对支撑剂输送过程影响下的水平井分级压裂设计模拟软件。
3
On this basis, sectionalized linearization of bilinear hysteretic structural characteristics and bilinear hysteretic filtering of structural system are put forward.