1、Assembly quality
After assembling the water well drilling rig, carry out an air-transfer test to observe whether the valves are flexible and reliable, whether the top tightening cylinder and the propelling cylinder are free to expand and retract, whether the rotary body assembly runs smoothly on the track and whether the whole machine moves in a matching manner.
2、Appearance quality
The appearance quality of the drilling rig is judged by visual inspection.
3. Safety
The anti-BAO test of the anti-BAO motor supporting the drilling rig is carried out in accordance with national regulations; the pressure-bearing system is pressurised to 1.5 times the rated pressure; the hoses used are tested in accordance with the prescribed inspection methods.
4. Sealing performance of the drilling rig
When testing the sealing performance of the rig, pressurise the pressure-bearing system to 1.5 times the rated pressure and hold the pressure for three minutes to observe whether there are any abnormalities such as leakage.
5. Reliability test
The continuous test is carried out in the laboratory. The rig is operated continuously for 120 minutes under the rated working conditions to observe the operation of the rig and the supporting pump station. The average downhole trouble-free time of the drilling rig is in the downhole line of the coal mine.
6、Noise measurement is tested according to the methods specified in the national standards.
Post time: Jul-28-2022