Test Category：non-oil product
Evaluation Form for the Field Test of the Product
12 1/4the performance test of the improved HDD Palm
Get to know the performance difference of the HDD product before and after improvement.
Under the same or similar working conditions, the performance differences and failure features of the HHD Palm before and after improvement will be compared by tests.
May 17th, 2017
Territory of Use
Zhumadian City in Henan Province
Drilling Machine GD-500-LL 140 Drill pipe +197mm Mud Motor 1.75°
Brief Introduction of the Testing Process
At the beginning, the performance of the entering rock increased by 18% compared with the early product. When it drills to 1100m, the drilling time keeps increasing; At that time, the clients requires to bring drill bit out. The failure of the bit bearing is rejected according to the experience-based judgement analysis (when HDD Reamer comes to the same layer, the drilling time increases slightly), so it can be determined that the drilling work can be continued for the observation. When it drills to 1310m, the drilling time decreases a bit and comes back to normal. The excavating work goes smoothly.
Net Drilling Time（h）
Outputting picture or failure description
☑promoting application □continuing verification
□changing testing conditions or areas □stop testing