NMLC Core Barrel Water Welling Drilling 3 7/8" Tricone Drill Bit
3 7/8" Tri-cone roller bits for Australia NMLC Core barrel water
welling drilling
The Tricone Bit is the most versatile drill bit on the market. It
is the go-to drill bit in most styles of drilling. Whether you are
drilling a water well or an oil well, Roschen group limited has the
Tricone Drill Bit for you.
The Advantages of Using a Tricone over Other Drill Bits:
1. There is a Tricone suitable for any rock formation
2. Tricone bit is versatile and can handle changing formations
3. Tricones are reasonably priced, long lasting and have an
efficient drilling rate
Cost of a Tricone Bit:
The cost of a good drill bit varies from about 1-5% of the total
cost, however, the drill bit will affect up to 75% of your total
cost.
1. Reducing the number of times you trip
2. Increased rate of penetration when drilling means more holes
faster
3. Straighter holes and longer bit life
4. Saves you time and money
Depending on your application, Roschen group limited can provide
you with new, re-run or premium oil field quality Tricone bits. The
difference between a premium oil field Tricone bit and non-premium
oil well quality Tricone is that the roller cones have high end
sealed bearings; extremely high quality tungsten carbide and
diamond gauge protection throughout the drill bit as well as skirt
tail hard facing and optimized hydraulics.
These roller cone drill bits are designed to go to extreme depths
in extreme conditions and in situations where they cannot fail.
| ITEM | Tricone Bits Specifications | API thread |
| inch | mm | |
| 1 | 3-3/4 | 95.3 | 2-3/8 |
| 2 | 3-7/8 | 98.4 | 2-3/8 |
| 3 | 4-1/8 | 104.8 | 2-3/8 |
| 4 | 4-1/4 | 108.0 | 2-3/8 |
| 5 | 4-1/2 | 114.3 | 2-3/8 |
| 6 | 4-5/8 | 117.5 | 2-7/8 |
| 7 | 4-3/4 | 120.7 | 2-7/8 |
| 8 | 4-7/8 | 123.8 | 2-7/8 |
| 9 | 5-1/2 | 139.7 | 3-1/2 |
| 10 | 5-5/8 | 142.9 | 3-1/2 |
| 11 | 5-2/3 | 143.9 | 3-1/2 |
| 12 | 5-3/4 | 146.1 | 3-1/2 |
| 13 | 5-7/8 | 149.2 | 3-1/2 |
| 14 | 6 | 152.4 | 3-1/2 |
| 15 | 6-1/8 | 155.6 | 3-1/2 |
| 16 | 6-1/4 | 158.8 | 3-1/2 |
| 17 | 6-1/2 | 165.1 | 3-1/2 |
| 18 | 6-5/8 | 168.3 | 3-1/2 |
| 19 | 6-3/4 | 171.5 | 3-1/2 |
| 20 | 7-1/2 | 190.5 | 4-1/2 |
| 21 | 7-5/8 | 193.7 | 4-1/2 |
| 22 | 7-7/8 | 200.0 | 4-1/2 |
| 23 | 8-3/8 | 212.7 | 4-1/2 |
| 24 | 8-1/2 | 215.9 | 4-1/2 |
| 25 | 8-5/8 | 219.1 | 4-1/2 |
| 26 | 8-3/4 | 222.3 | 4-1/2 |
| 27 | 9-1/2 | 241.3 | 6-5/8 |
| 28 | 9-5/8 | 244.5 | 6-5/8 |
| 29 | 9-7/8 | 250.8 | 6-5/8 |
| 30 | 10-1/2 | 266.7 | 6-5/8 |
| 31 | 10-5/8 | 269.9 | 6-5/8 |
| 32 | 11 | 279.4 | 6-5/8 |
| 33 | 11-5/8 | 295.3 | 6-5/8 |
| 34 | 12 | 304.8 | 6-5/8 |
| 35 | 12-1/4 | 311.2 | 6-5/8 |
| 36 | 12-5/16 | 312.7 | 6-5/8 |
| 37 | 12-3/8 | 314.3 | 6-5/8 |
| 38 | 12-7/16 | 315.9 | 6-5/8 |
| 39 | 12-5/8 | 320.7 | 6-5/8 |
| 40 | 13-1/8 | 333.4 | 6-5/8 |
| 41 | 13-1/2 | 342.9 | 6-5/8 |
| 42 | 13-5/8 | 346.1 | 6-5/8 |
| 43 | 13-3/4 | 349.3 | 6-5/8 |
| 44 | 14-1/2 | 374.7 | 7-5/8 |
| 45 | 14-3/4 | 374.7 | 7/5/8 |
| 46 | 15-1/2 | 393.7 | 7-5/8 |
| 47 | 16 | 406.4 | 7-5/8 |
| 48 | 17-1/2 | 444.5 | 7-5/8 |
| 49 | 18-7/8 | 479.4 | 7-5/8 |
| 50 | 20 | 508.0 | 7-5/8 |
| 51 | 22 | 558.8 | 7-5/8 |
| 52 | 24 | 609.6 | 7-5/8 |
| 53 | 26 | 660.4 | 7-5/8 |
For more information please contact:
ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED
Skype: ROSCHEN.TOOL , ROSCHEN_GROUP
WeChat: +86-137 6419 5009 ; +86-135 8585 5390
WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390
Email: roschen@roschen.com ; roschen@roschen.net
Website: http://www.roschen.com ; http://www.roschen.net
