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Help CenterEccentric Overburden Casing System
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Specifications
1.Applied to the drilling where the rock formation is overburden and need casing tube to support.2.Flexible to open and close
Application Range
It is suitable for drilling water wells,geothermal wells, short mircopiles medium mini-type grouting hole of building, dam and harbour project.
Design Principles
Make the casing follow easy and the equipment and operation simple
Outstanding Advantages
Simple structure,simple operation,reliable quality,retrievable drilling tools,long service life.
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 |
TH79 |
76 |
114 |
101-103 |
127 |
91 |
R56,T38,TH79 |
76 |
127 |
114-116 |
136 |
101 |
TH79 |
76 |
140 |
124-127 |
152 |
117 |
TH98 |
76 |
146 |
127-132 |
154 |
117 |
TH98 |
76 |
168 |
149-155 |
184 |
140 |
TH122 |
76,89 |
178 |
159-165 |
194 |
150 |
TH122 |
76,89 |
193 |
173-180 |
206 |
166 |
TH139 |
89,114 |
219 |
199-206 |
234 |
193 |
TH139,TH180 |
89,114 |
245 |
224-231 |
260 |
210 |
TH180,TH220 |
114 |
273 |
251-257 |
300 |
241 |
TH180 |
114,127 |
Photos:
Guide Device:
Pilot Bit
Reamer:
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