Research on Multi-level Protection Technology Based on ZGF-100(A) Ultra-high Pressure Hydraulic Drilling and Cutting Integrated Device

Abstract

In order to ensure the safety of hydraulic transmission and slitting operation under ultra-high pressure, the composition of ZGF-100(A) ultra-high pressure hydraulic drilling and cutting integrated device, the main technical parameters of the complete set and the main technical indexes are described. ZGF-100 Based on the (A) type of ultra-high pressure hydraulic drilling and cutting integrated device, it is protected from the protection of ultra-high pressure water source, the protection of ultra-high pressure water transmission channel, the connection protection of key components of ultra-high pressure hydraulic transmission and the specification of ultra-high pressure hydraulic cutting operation. Ultra-high pressure hydraulic slitting multi-stage protection technology was studied. The equipment safety laboratory experiment was carried out. Under the experimental conditions of test pressure 120 MPa and pressure retention for 30 min, there was no leakage between the slash shallow spiral integral drill pipe, the ultra-high pressure rotary water tail and the ultra-high pressure hydraulic hose. The ground test of safety performance of complete sets of equipment was carried out. Under the conditions of experimental pressure of 100 MPa and duration of 30 min, no leakage occurred in all parts of the ultra-high pressure pipeline system, which was safe and reliable. After adopting the multi-stage hydraulic secant multi-level protection technology, the safety of the complete set of equipment is effectively improved, the safety of the ultra-high pressure hydraulic slitting operation can be effectively ensured, the occurrence of the accident of the ultra-high pressure water injury is prevented, and the operator’s personal life is guaranteed. Safety reflects good social benefits.