Abrasive jet cutting subsea wellhead operating efficiency, to carry out the relevant theoretical and experimental

Demolition work in the offshore oil platform, the abandoned wellhead underwater cutting is one of the most important and most expensive one engineering work. Multilayer casing abrasive jet cutting technology has abandoned wellhead safety, environmental protection advantages. But conventional abrasive jet cutting tool cutting subsea wellhead, due to the ever-increasing standoff distance reduces the cutting efficiency. To improve the abrasive jet cutting subsea wellhead operating efficiency, to carry out the relevant theoretical and experimental studies. The first systematic study using  Diamond blade  of various parameters on the abrasive jet cutting efficiency. The results showed that: the depth of the abrasive jet cutting  cutting tools  pump pressure, nozzle diameter, the number of nozzles, cutting the time increases, as the target distance decreases; with the increase of the cutting speed of the cutting head casing depth first increases and then decreases, the optimal  grinding wheel l 7.895r/min; with the abrasive concentration increases, the cutting depth along first and then decreases, experimental optimum abrasive mass concentration value of 26.10%; abrasive abrasive jet cutting depth in descending order of iron ore, emery, garnet, quartz sand.