| Use: | Well Drilling |
|---|---|
| Processing Type: | Casting |
| Material: | Carbon Steel |
| Certification: | API |
| Machine Type: | Drilling Tool |
| Type: | Drill Bit |
| Model Number: | DR-D-001 |
| Brand Name: | DR |
| Place of Origin: | China (Mainland) |
| COLOR: | GOLD |
Quick Details
Specifications
1.Detailed Product Description
1)drill in overburden unstable rock
2)one step to drill and follow casing
3)flexible to open or close
4)effecient below 300mm
2.Application Range
It is suitable for drilling water wells,geothermal wells, short mircopiles medium mini-type grouting hole of building, dam and harbour project.
3.Design Principles
Make the casing follow easy and the equipment and operation simple
4.Outstanding Advantages
Simple structure,simple operation,reliable quality,retrievable drilling tools,long service life.
5.Normal Specifications
|
A |
B |
C |
D |
E |
F |
|
Outer Dia. of Casing Tube |
Inner Dia. of Casing Tube |
Reamed Dia. |
Min. Inner Dia.of Casing Shoe |
Hammer Type |
Drill Pipes |
|
mm |
mm |
mm |
mm |
|
mm |
|
108 |
93-99 |
118 |
86 |
DR79 |
76 |
|
114 |
101-103 |
127 |
91 |
R56,T38,DR79 |
76 |
|
127 |
114-116 |
136 |
101 |
DR79 |
76 |
|
140 |
124-127 |
152 |
117 |
DR98 |
76 |
|
146 |
127-132 |
154 |
117 |
DR98 |
76 |
|
168 |
149-155 |
184 |
140 |
DR122 |
76,89 |
|
178 |
159-165 |
194 |
150 |
DR122 |
76,89 |
|
193 |
173-180 |
206 |
166 |
DR139 |
89,114 |
|
219 |
199-206 |
234 |
193 |
DR139,DR180 |
89,114 |
|
245 |
224-231 |
260 |
210 |
DR180,DR220 |
114 |
|
273 |
251-257 |
300 |
241 |
DR180 |
114,127 |