Customization: | Available |
---|---|
Warranty: | 1 Year |
Certification: | ISO9001:2008 |
Suppliers with verified business licenses
Audited by an independent third-party inspection agency
Symmetric Overburden Casing System
Application Range
It is recommended to drill in rock formation where contains some ovals and fractures.
Design Principles
Make the casing follow easy and the equipment and operation simple
Outstanding Advantages
The stable and reliable working performance and the less vibration of drill rig and flexible to open and close.
Order Guide: A+B+C+D+G
Specifications
A |
B |
C |
D |
E |
F |
G |
Outer Dia. of Casing Tube |
Inner Dia. of Casing Tube |
Reamed Dia. |
Min. Inner Dia. of Casing Shoe |
Hammer Type |
Drill Pipes |
Max. Outer Dia. of Normal Bit |
mm |
mm |
mm |
mm |
|
mm |
mm |
108 |
93-99 |
118 |
86 |
TH79 |
76 |
77 |
114 |
101-103 |
127 |
91 |
TH79 |
76 |
82 |
127 |
114-116 |
136 |
101 |
TH79 |
76 |
92 |
140 |
124-127 |
152 |
117 |
TH98 |
76 |
105 |
146 |
127-132 |
154 |
117 |
TH98 |
76 |
105 |
168 |
149-155 |
184 |
140 |
TH122 |
76,89 |
125 |
178 |
159-165 |
194 |
150 |
TH122 |
76,89 |
140 |
193 |
173-180 |
206 |
164 |
TH139 |
89,114 |
150 |
219 |
199-206 |
234 |
184 |
TH139,TH180 |
89,114 |
165 |
244 |
224-231 |
260 |
210 |
TH180,TH220 |
114 |
190 |
273 |
251-257 |
305 |
240 |
TH180,TH220 |
114,127 |
220 |
323 |
301-310 |
348 |
284 |
TH180,TH220 |
127 |
255 |
406 |
382-388 |
440 |
364 |
TH220,TH275 |
140 |
340 |
457 |
433-439 |
488 |
413 |
TH275 |
140 |
385 |
508 |
484-490 |
538 |
464 |
TH275 |
140 |
440 |
558 |
534-540 |
590 |
514 |
TH275,TH398 |
140 |
485 |
610 |
586-592 |
642 |
566 |
TH275,TH398 |
168 |
540 |
660 |
636-642 |
694 |
615 |
TH398 |
168 |
590 |
711 |
687-693 |
745 |
665 |
TH398 |
168 |
640 |
762 |
738-744 |
798 |
716 |
TH600 |
168 |
685 |
863 |
839-845 |
900 |
815 |
TH600 |
168 |
785 |
How to complete the whole deal
Step:
1. Firstly decide the design, material and color
2. Decide the size in accordance with client's requirement and our
recommendation
3. We will give the best offer.
4. Client's accept the offer and we send proforma invoice.
5. Client transfers 30%-50% deposit and production begins
6. After production, we will send ready products photo
7. After client's confirmation, we will arrange shipment, and send
copy shipping documents like B/L, commercial invoice and
packing list
8. Client transfer balance payment and we will send original
documents by DHLor EMS