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Product Details:
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| Product Name: | Drill Stem Pipe | Advantage: | Best Price |
|---|---|---|---|
| Machine Type: | Drilling Equipment | Size: | Standard Or Customized |
| Color: | Customized | Packing: | Standard Export Packing Or As Your Required |
| High Light: | Mining Square Kelly Drill Stem Pipe,ISO 9001 Drill Stem Pipe |
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Drill Stem Pipe Coal Mining Tools Construction Tools Well Drill Pipe
The main function of the kelly is to turn the rotation of the turntable into the rotation of the entire drill string and drill bit to break the formation, that is, to transmit torque and bear the full weight of the drill string. When drilling with turbodrills and screw drills, the kelly bears the full weight and reactive torque of the drill string. It is also used to measure the depth of the well and provide circulation channels.
| Specification | Length(ft) | Upper connection | Lower Connection | Inner Diameter | Drive Parts | Approximate Weight | ||||||
| Standard | Selecting | |||||||||||
| A | LH Connection | OD C | LH Connection | OD C | RH Connection | OD D | E | F | G | Standard | Selecting | |
| (in) | (in) | (in) | (in) | (in) | (in) | |||||||
| 2 1/2 | 40 46 | 6-5/8 Reg | 7 3/4 | 4-1/2 Reg | 5 3/4 | NC26 (2-3/8IF) | 3 3/8 | 1 1/4 | 3 1/4 | 2 1/2 | 410 465 | 360 420 |
| 3 | 40 46 | 6-5/8 Reg | 7 3/4 | 4-1/2 Reg | 5 3/4 | NC31 (2-7/8IF) | 4 1/8 | 1 3/4 | 3 7/8 | 3 | 495 560 | 450 515 |
| 3 1/2 | 40 46 54 | 6-5/8 Reg | 7 3/4 | 4-1/2 Reg | 5 3/4 | NC38 (3-1/2IF) | 4 3/4 | 2 1/4 | 4 3/7 | 3 1/2 | 600 670 780 | 555 630 730 |
| 4 1/4 | 40 46 54 | 6-5/8 Reg | 7 3/4 | 4-1/2 Reg | 5 3/4 | NC46(4 IF) or NC50 (4-1/2IF) | 6 or 6 3/8- 6 1/2 | 2 4/5 | 5 1/2 | 4 1/4 | 825 940 1070 | 780 890 1040 |
| 5 1/4 | 40 46 54 | 6-5/8 Reg | 7 3/4 | -- | -- | NC50 or 5-1/2 FH or NC56 | 7 | 3 1/4 | 6 3/4 | 5 1/4 | 1250 1430 1670 | -- |
| 6 | 40 46 54 | 6-5/8 Reg | 7 3/4 | -- | -- | 6-5/8 FH | 8 | 3 1/2 | 7 5/8 | 6 | 1670 1920 2250 | -- |
Please contact us freely if you have any other requests.
Our Principle
Our principle is to provide our customers with the highest quality tools, accessories, and services in the industry. Years of experience, well-trained professionals and a complete mechanical workshop support us. Reducing costs, speeding up drilling, and ensuring safety have always been our mission.
FAQ
Q1: Are you a manufacturer or trading company?
A: We have manufactured pdc drill bits since 2013, so we have price advantages.
Q2: What is your trade terms?
A: We offer EXW, FOB, CIF.
Q3: What is your payment terms?
A: Payment terms: normally 30% deposit, balance 70% before shipment.
Payment methods: T/T, L/C.
Q4: How do you guarantee your quality?
We select the advanced production technology and equipment, strictly control the whole production process, and inspect the finished drill bits. We can also make several design changes according to the customer's feedback, and finally ensure the customer's excellent drilling effect.
Contact Person: Kathy
Tel: +8618792890521
