|
[China]
Trade Verify
Address: Xiaoshang Village,Jinzhou City,Hebei province,China
Contact name:Anna
Jinzhou City Shitan Machinery Equipment CO. LTD. |
|
Verified Suppliers
|
|
|
295mm Hole Diameter Engineering GK 200 Hydraulic Borewell Machine
GK 200 Hydraulic Borewell Machine Information
Gk200 drilling rig is designed by adding mud pump based on xy-1a drilling rig according to customer feedback. It is a high-speed portable drilling rig fed by hydraulic pressure,adopting large Kelly,double guide pipe. Increase the stability,the drilling depth is 200 meters,the hole diameter is from 75-300mm.
GK 200 Hydraulic Borewell Machine Tech Data
Drilling depth | 200m | ||
Maximum opening diameter | 75-300mm | ||
Final hole diameter | 75mm | ||
Sizes | 53/59*4200mm | ||
Drill pipe diameter | 50,60mm | ||
Drilling angle | 90°~75° | ||
Auxiliary power diesel engine | 15/2200kW/r/min | ||
Structural weight/Size | 1150kg/2700*950*1770 | ||
GK 200 Hydraulic Borewell Machine Features
With the hydraulic feeding mechanism,improve the drilling efficiency,reducing the labor intensity of workers.
The rig is equipped with a ball on a cassette holding mechanism and a six side rod, the rod can be replaced without shutdown, high work efficiency, safe and reliable
Furnished with hole bottom pressure gauge pressure indicator,and easy to master the status inside the hole
The handle centered, convenient operation.
The drilling machine has the advantages of compact structure,small volume,light weight,convenient move,decomposition and strong,suitable for the plains or mountain areas.
GK 200 Hydraulic Borewell Machine Application
During drilling, the power of the drilling rig drives the rotary table, Kelly, drill pipe and drill bit to rotate.
Observe the working condition of the down hole drill bit through the instruments on the ground of the drilling rig. After comprehensive judgment, if the drill bit is considered to have been worn, stop drilling immediately and replace the drill bit. After the drilling is stopped, the drilling fluid circulation shall be maintained for a period of time. The purpose is to adjust the performance of the drilling fluid, bring the rock cuttings suspended in the drilling fluid out of the ground, circulate to keep the new borewell wall stable, and conduct routine inspection of the drilling equipment. The driller uses the crown block, traveling block and hook on the derrick to pull out all drilling tools from the well according to the height of the derrick and the column (usually composed of two or three drill pipes). After pulling out, the drill pipe column is discharged into the derrick in sequence. While lifting the down hole drill string, the drilling fluid shall be continuously injected into the annular space with the drilling pump to keep the liquid level in the borewell from falling, so that the pressure in the borewell can balance the formation pressure, so as to prevent the borewell from collapsing or the fluid in the down hole formation from entering the borewell. At the same time, pay special attention to the possible sticking of the drill pipe due to the wall shrinkage, and the operator shall strictly control the lifting speed. After all the drill pipes and drill collars in the borewell are pulled out, the drill bits to be replaced will be pulled out at the same time. The workers can resume drilling after unloading the old drill bits, installing new drill bits and lowering them into the well according to the original column sequence.
