It adopt dry filling method in the orebody above -350m level and adopt the method of sublevel caving in the orebody under the level. Exploitation engineering already reach -385m level.

Compared with tool system driven by oil hydraulics or pneumatics, this kind of tool system has many advantages and has broad applications in ocean exploitation and shipping engineering.

In this paper, problems of dropping load rate, efficiency and rising operation energy consumption of surface engineering system during oil field exploitation are studied.