HDD Tricone Pilot Bit
Pilot tricone bit are mainly used for guided drilling in rocky strata, usually used together with mud motors and mixing silos, using the curvature of the mud motors themselves or specialised inclined short joints for inclination, and can be divided into two types of teeth according to the different tooth shapes, TCI drill bit and Milled tooth tricone bit (steel), with the former being suitable for all types of rocky strata, and the latter being mainly suitable for soft rock or hard soil layers.
Some common sizes and configurations are listed below, DrillMore can build to suit any project so contact us to inquire about your specific needs.
| ||||||
| Pilot Bit to Hole Opener Step 12 1/4" to 22" Soft to Medium | ||||||
Reamer Diameter | Pilot Bore Diameter | Bit Thirds | ||||
| Min. | Max. | Qty | Size | IADC | ||
12 1/4" 311mm | 5 1/2" 140mm | 6 3/4" 171mm | 3 | 9" | 4-1-7 | |
14" 356mm | 7 7/8" 200mm | 8 3/4" 222mm | 4 | 9" | 4-1-7 | |
16" 406mm | 9 7/8" 251mm | 10 5/8" 270mm | 4 | 9" | 4-1-7 | |
20" 508mm | 9 7/8" 251mm | 10 5/8" 270mm | 4 | 12 1/4" | 4-1-7 | |
22" 559mm | 12 1/4" 311mm | 4 | 12 1/4" | 4-1-7 | ||
10" 254mm | 4 3/4" 121mm | 6 3/4" 171mm | 4 | 6 3/4" | 5-4-7 | |
12 1/4" 311mm | 5 1/2" 140mm | 6 3/4" 171mm | 4 | 9" | 5-4-7 | |
14" 356mm | 7 7/8" 200mm | 8 3/4" 222mm | 5 | 9" | 5-4-7 | |
16" 406mm | 9 7/8" 251mm | 10 5/8" 270mm | 6 | 9" | 5-4-7 | |
20" 508mm | 9 7/8" 251mm | 10 5/8" 270mm | 5 | 12 1/4" | 6-2-7 | |
22" 559mm | 12 1/4" 311mm | 5 | 12 1/4" | 6-2-7 | ||
Directional crossing operation is widely used in unexcavated project.
Three steps in such operation are:
1>the first stage is to drill a small diameter pilot hole.
2>The second stage is enlarge the hole with a larger diameter cutting tool called an HDD Reamer,
Rock Reamer or Hole Opener.
3>The third stage is inserting the casing pipe or other product into the enlarged hole.
Hole opening is the onerous task in this operation, but, the key for hole opening operation is the hole opener choosing according to the operation equipment and formation.
DrillMore's Best Service:
1.365*24 Year-round Service,We are committed to year-round 24-hour service even during holidays.
2. Provide professional technical services, including products introduction, selecting and problem solution etc.
3. Large inventory of regular types, customized types can be delivered within 30 days.
How to order?
1.Diameter of hole opener
2.Diameter of stabilizer
3.Type of roller cones
4.Thread connection(pulling/trailing)
DrillMore Rock Tools
DrillMore is dedicated to the success of our customers by suppling drilling bits to each application. We offers our customers in the drilling industry many options, if you do not find the bit you are looking for please contact our sales team at following to find the correct bit for your application.
Head Office: XINHUAXI ROAD 999, LUSONG DISTRICT, ZHUZHOU HUNAN CHINA
Telephone: +86 199 7332 5015
WhatsApp: https://wa.me/8619973325015
Email: [email protected]
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