66mm 76mm 86mm 101mm 116mm 131mm 146mm 152mm 168mm 194mm 203mm 219mm 232mm 254mm 272mm Metric Casing Pipe Tubes
66mm 76mm 86mm 101mm 116mm 131mm 146mm 152mm 168mm 194mm 203mm 219mm 232mm 254mm 272mm Metric Casing Pipe Tubes
Metric Casing Pipe Tubes
Metric casing pipe tubes are available in diameter range from 66mm 76mm 86mm 101mm 116mm 131mm 146mm 152mm 168mm 194mm 203mm 219mm 232mm 254mm 272mm etc. They are manufactured from thin wall cold drawn steel tubes of a very high mechanical specification. The casing pipe tubes are flush jointed with a male thread at one end and a female thread at the other end (thread pitch 4 t.p.i.).
The casing pipe standard length are 3.0m, 1.5m, 1m, and 0.5m, any other length is available by requests.
The casing pipe tubes are designed to be used in conjunction with TT, T2 and T6 series Metric core barrels. For example, a T2-86 core barrel will fit inside 101 metric casing pipe, and a T6-101 core barrel will fit inside 116mm metric casing pipe, etc.
The clearance between the core barrel and the inside of the casing tube is quite small, reducing the volume of water that is required for flushing, and creating a high up-hole fluid velocity which facilitate efficient removal of rock cuttings from the borehole.
casing pipe tubes are available in DCDMA size, BW, NW, HW, PW, SW, UW, and SW and metric size 66mm 76mm 86mm 101mm 116mm 131mm 146mm 152mm 168mm 194mm 203mm 219mm 232mm 254mm 272mm, etc.
Specifications of Casing pipe | ||||
Metric Series Casing Pipe | ||||
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 | 88.3 | ||
116 | 113 | 103.3 | ||
131 | 128 | 118.3 | ||
146 | 143 | 133.3 | ||
Flush Jointed W Series Casing pipe | ||||
Size | Outer Diameter | Inner Diameter | ||
inch | mm | inch | mm | |
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 |
SW | 6.625 | 168.3 | 5.937 | 150.8 |
Flush Coupled X Series Casing pipe | ||||
NX | 3.50 | 88.9 | 3.00 | 76.2 |
HX | 4.50 | 114.3 | 4.11 | 104.4 |
PX | 5.50 | 139.7 | 4.87 | 123.7 |
Notes: | ||||
Casing thread: 4 threads per inch | ||||
Casing length: generally supplied with length 3.0m, 1.5m, 1.0m, 0.75m. | ||||
Any sepcial length is available by requests. |