Methods to reduce the failure rate of high-pressure tubing:

(1) the high-pressure oil pipe cannot be too long, or it is prone to secondary injection failure; Also cannot be too short, can cause the injector to spray the performance to reduce, the atomization becomes poor.

(2) the attenuation of residual pressure can be accelerated as the wall thickness of high-pressure oil pipe increases gradually.

(3) the larger the hole size of the high-pressure oil pipe is, the lower the oil injection performance will be and the injection failure will occur. The smaller the aperture, the larger the pulse.

(4) as the nozzle hole diameter increases, it is easy to cause pulsation and secondary injection, but the nozzle diameter decreases, leading to uneven pressure fluctuations in the pipe.