Casing head is like the sub adaptor, it's one end connect with the casing tubes, and another end is connect with drill rods or with other drilling tools during drilling.
Our company is specialized in exporting many types of drilling rigs, the products including drilling rigs for mining exploration, water well drilling rigs, coal mine drilling rigs, borehole drilling rigs, geological drilling machine, construction drilling rigs, core drilling rig, and etc. We also exported the truck mounted drilling rigs, wheel mounted drilling rigs, crawler drilling rigs and so on to meet all customers' requirements.
We are also manufactured and exported all kind of drilling accessories, such as core bits, non-coring bits, reaming shells, casing shoes & casing bits, core barrels, overshot, drill rods, casing tubes and other drilling tools.
All specifications are available. If you need any further information, please feel free to contact with us.
Casings Size:
| Metric Series Casings |
| Size |
Outer Diameter |
Inner Diameter |
| inch |
mm |
inch |
mm |
| 46 |
|
44.15 |
|
37.15 |
| 56 |
|
54.15 |
|
47.15 |
| 66 |
|
64.25 |
|
57.25 |
| 76 |
|
74.25 |
|
67.25 |
| 86 |
|
84.25 |
|
77.25 |
| 101 |
|
98.00 |
|
88.30 |
| 116 |
|
113.00 |
|
103.30 |
| 131 |
|
128.00 |
|
118.30 |
| 146 |
|
143.00 |
|
133.30 |
| Flush-Jointed W Series Casings |
| BW |
2.874 |
73.0 |
2.374 |
60.3 |
| NW |
3.500 |
88.9 |
3.000 |
76.2 |
| HW |
4.500 |
114.3 |
4.000 |
101.5 |
| PW |
5.500 |
139.7 |
5.000 |
127.0 |
| Flush-Coupled X Series Casings |
| NX |
3.500 |
88.9 |
3.000 |
76.2 |
| HX |
4.500 |
114.3 |
3.937 |
100.0 |
| PX |
5.500 |
139.7 |
4.867 |
123.6 |
| Flush-Jointed Water Well Casings (B.S.879) |
| 4" |
4 1/2" |
114.3 |
3 7/8" |
98.3 |
| 5" |
5 1/2" |
139.7 |
4 7/8" |
123.7 |
| 6" |
6 5/8" |
168.3 |
5 7/8" |
149.3 |
| 8" |
8 5/8" |
193.7 |
7 7/8" |
174.7 |
Audited Supplier 
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