Augers
(ТC (Technical Conditions) 3147-001-01423045-2007)
Augers are intended for drilling of degas wells on coal directly from excavations both with flushing and without it.
Augers are used in any drill rigs, which have the spindle exit no less 1500 mm and the dimension of the clamping apparatus according to the dimension of the auger.
Hexagon tool joint is S=32 mm
Fixation from the axial removing
with bolted connection is d=12 mm
Water course is d=12 mm
Coil’s step is 88 mm
|
Marking - off standard size of the auger |
Outside diameter of the auger D, mm |
Length of the auger L, mm |
Diameter of the auger’s body d, mm |
Dimensions of the coil’s strip, height ´ width, mm |
Mean time to failure of augers no less, hour |
|
76´1500 |
76 |
1500 |
50 |
6´12 |
850 |
|
78´1500 |
78 |
1500 |
54 |
6´12 |
850 |
|
90´1500 |
90 |
1500 |
54 |
6´18 |
850 |
|
93´1500 |
93 |
1500 |
54 |
6´19 |
850 |
|
97´1500 |
97 |
1500 |
54 |
6´22 |
850 |
Drawing 2 – Tool joint’s bolting connection
Advantages of our augers as compared with import analogues:
1. Increased quality of the bolting connection for the solidity of the column during the drilling process.
2. Standard kit of duplicate parts which includes in itself O-ring, bolt, nut. The number of providing
kits are coordinated with the customer.
3. Price of the proposed auger is lower from the import analogue in 1.5 times.
4. Delivery period is from 4 weeks.
Augers are connected between themselves owing to the axial displacement of one auger’s nipple into the coupling of the another auger till the whole closing of augers’ stop face.
Tightness of the connection is achieved with the help of installing O-ring on the auger’s nipple
For the transmission of the rotary moment from the rig through the kit of rods to the bit it is foreseen to use
the hexagon coupling and for the solidity of augers there is the bolting connection of tool joints.
