| After-sales Service: | 24/7 |
|---|---|
| Warranty: | 12 Months |
| Manufacturing Process: | Forging |
| Surface Treatment: | Spray-Paint |
| Operation Pressure: | Atmospheric Pressure |
| Material: | Alloy Steel |
| Customization: |
|---|
Suppliers with verified business licenses
Audited Supplier | Product Name | Drill Pipe Drill Collar |
| Sizes | 2-7/8" to 14" |
| Grades | E75, X95, G105, S135 |
| Connection Threads | NC26, NC31, NC38, NC40, NC46, NC50, 5 1/2FH.6 5/8FH. |
| Internal Upset | IU, EU, IEU |
| Thread Protector | Available for steel, cast steel and plastic steel |
| Materials | 4145H, 5DP |
A drill collar is a device used at the lowest part of a drill string, an important part of the bottom hole assembly (BHA). It is always a very thick-walled tube to apply weight to the drill bit. Normally, a drill collar is threaded at both ends, male on one and female on the other. Except for thickness as a special characteristic, a drill collar owns other unique features, gravity, rigidity, etc. It is used between the drill pipe and the bit in the drill stem and put weight on the bit so that the bit can drill.
BOBAN supply slick drill collars, spiral drill collars and non-magnetic drill collars; sizes are from 3-1/8 to 11 inches. Besides the drill collars in the table below, we can supply other drill collars at customers' request.
Q1. How to get an accurate quotation?
A1: Please provide related technical requirements, drawings, pictures, industrial voltage(solid control equipments) and quantity, our team will provide solutions and quotations in time.
Q2. How about your delivery time?
A2: Generally, for spare parts we have regularly stock; for equipments or drilling tools it will takes 20~30 working days after receiving your deposit payment. Accurate delivery time depends on the items and the quantity of your order.
Q3. What is the warrantee period of the machine?
A3: We can supply 12 Months warranty for our equipments. We provide 7/24 internet or calling service at your convenience, and also our engineers can provide filed installation or services to your place if needed.
Q4. What's your trade terms and payments terms?
A4: We accepted trade Terms: FOB, CFR, CIF, EXW, CIP, FCA, CPT, Express/Air/Sea Delivery; Usually our payment terms are % advance payment, balance before shipping, L/C should be discussed according to actual order.
1. One-stop drilling equipments and spares supplier: Produce and supplya full line of equipments for O& G, horizontal directional drilling (HDD), micro-tunnelling, pipe jacking, etc, like mud systems, drilling rig components, downhole drilling tools, mud pump and spares, solid control equipments.
2. Factory advantages: All our products are API & ISO: 9001-2000 certified, we're sue to provide clients stable supply with competitive prices.
3. Professional Team: Avanced production facilities, rigorous quality management, R&D technical team, 7*24 hours services.
4.Qualified vendors for famous international drilling companies: Like Italy, Germany, Poland, UAE, Oman, Kuwait, Egypt, Russia & Asia.
Suppliers with verified business licenses
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