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[China]
Trade Verify
Address: 8-1011,Lane 5600, Chuansha Road, Pudong, Shanghai, China
Contact name:Zoe Zou
Topland Oilfield Supplies Ltd |
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Verified Suppliers
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P550 Spiral Non Magnetic Downhole Drilling Tools NMDC Non Magnetic Drill Collar
Non Magnetic Drill collar Description of Downhole Drilling Tools
NMDP non magnetic drill collar is made of stainless steel with rather low magnetic permeabiilidity and the cross section of the inside and outside pipe are both round. it is an importand part of drill string, drill collar can supply the drill bit and increase the rigidity of drill string.
Trepanning and Heat Treatment:
Drill collars are trepanned and drifted to API Spec 7-1.
Full-length heat-treatment processes ensure that mechanical
properties meet or exceed API Spec 7-1 requirements. A hardness
range of 285-341, Brinell hardness and Charpy "V" notch minimum
impact strength of 40 ft-lb at 70 F are guaranteed one inch below
the surface.
Traceability:
Drill collar material and process traceability are maintained from
receipt of the mill's certified raw material to completion of
manufacturing. Serial numbers are die stamped on bar bodies.
Rigid Inspection Procedures:
We inspect all our drill collars to ensure compliance with API SPEC
7-1 standards. These inspections include visual dimensional checks
as well as ultrasonic inspections over the entire body of the drill
collar.
Cold Rolling:
Drill collar thread roots, as well as elevator recess upper radius,
are cold-rolled. Cold rolling creates a compressive recess upper
radius stress condition that increases fatigue life by minimizing
crack initiation.
Phosphate-coated or Copper Plating:
All connections are phosphate-coated or copper plated to improve
resistance to corrosion.
Slip Groove, Elevator Groove and Size:
Topland offers optional slip and elevator recesses to improve
handling efficiency and safety. Unless otherwise specified, slip
and elevator recesses are machined in compliance with API spec 7-1
guidelines.
Thread Protectors:
Our company offers steel, cast steel and plastic steel thread
protectors for its drill stem products.
Downhole Mud Motor Datasheet of Downhole Drilling Tools
| Size | O.D(mm) | I.D.(mm) | Code | Thread | Length(mm) | Weight(kg) |
| 3-1/8 | 79.4 | 31.8(1-1/4) | NC23-31 | NC23 | 9140 | 298 |
| 3-1/2 | 88.9 | 38.1(1-1/2) | NC26-35 | NC26 | 9140 | 364 |
| 4-1/8 | 104.8 | 50.8(2) | NC31-41 | NC31 | 9140/9450 | 474/490 |
| 4-3/4 | 120.6 | 50.8(2) | NC35-47 | NC35 | 9140/9450 | 674/697 |
| 5 | 127 | 57.2(2-1/4) | NC38-50 | NC38 | 9140/9450 | 725/749 |
| 6 | 152.4 | 57.2(2-1/4) | NC44-60 | NC44 | 9140/9450 | 1125/1163 |
| 71.4(2-13/16) | NC44-60 | 9140/9450 | 1022/1056 | |||
| 6-1/4 | 158.8 | 57.2(2-1/4) | NC44-62 | NC44 | 9140/9450 | 1237/1279 |
| 71.4(2-13/16) | NC46-62 | 9140/9450 | 1134/1172 | |||
| 6-1/2 | 165.1 | 57.2(2-1/4) | NC46-65 | NC46 | 9140/9450 | 1352/1398 |
| 71.4(2-13/16) | NC46-65 | NC50 | 9140/9450 | 1249/1291 | ||
| 6-3/4 | 171.4 | 57.2(2-1/4) | NC46-67 | NC46 | 9140/9450 | 1471/1521 |
| 7 | 177.8 | 57.2(2-1/4) | NC50-70 | NC50 | 9140/9450 | 1597/1651 |
| 71.4(2-13/16) | NC50-70 | 9140/9450 | 1494/1545 | |||
| 7-1/4 | 184.2 | 71.4(2-13/16) | NC50-72 | NC50 | 9140/9450 | 1625/1680 |
| 7-3/4 | 196.8 | 71.4(2-13/16) | NC56-77 | NC56 | 9140/9450 | 1895/1960 |
| 8 | 203.2 | 71.4(2-13/16) | NC56-80 | NC56/6-5/8REG | 9140/9450 | 2040/2109 |
| 8-1/4 | 209.6 | 71.4(2-13/16) | 6-5/8REG | 6-5/8REG | 9140/9450 | 2188/2263 |
| 9 | 228.6 | 71.4(2-13/16) | NC61-90 | NC61 | 9140/9450 | 2658/2748 |
| 9-1/2 | 241.3 | 76.2(2-13/16) | 7-5/8REG | 7-5/8REG | 9140/9450 | 2954/3054 |
| 9-3/4 | 247.6 | 76.2(3) | NC70-97 | NC70 | 9140/9450 | 3127/3234 |
| 10 | 254 | 76.2(3) | NC70-100 | NC70 | 9140/9450 | 3308/3421 |
| 11 | 279.4 | 76.2(3) | 8-5/8REG | 8-5/8REG | 9140/9450 | 4072/4210 |
| Mechanical properties:<7 inch Drill Collar:Yield Strength≥758MPa,Tensile Strength≥965MPa,Four times elongation≥13%,Impact energy Ak≥54J,(Single impact work≥47J,Average≥54J)Hardness range 285HB~341HB≥7inch Drill Collar:Yield Strength≥689MPa,Tensile Strength≥931MPa,Four times elongation≥13%,Impact energy Ak≥54J,(Single impact work≥47J,Average≥54J) Hardness range 285HB~341HB | ||||||
FAQ
1. Who are we?
Topland is an integrated supplier established in 2008. We are a
global group of oilfield supplies with excellent teams in more than
5 countries. such as UAE, Kuwait, Iran and Saudi Arabia. We
cooperated with ADES, ECDE, EDC, SOCAR-AQS, PDL, SAKSON, ONGC etc.
2. How can we guarantee quality?
Always a double requirements and drawing checking before the
production;
Always final Inspection before shipment;
3. What can you buy from us?
Drilling rig equipment and the related spares for the oil and
natural gas industries. Like Rig Components, Drawworks Spare parts
and Mud Pump Spare parts, Hydraulic Disc Brake,Solids Control
Equipment, Drilling and Fishing Tools,Wellhead Control
Equipment,Drilling Accessories, Cementing Equipment and Tools etc.
4. Why should you choose us?
4-1. Professional & Efficient, Customer Focus, Win-win
Cooperation
4-2. Fast Quote, Competitive price & within shortest lead time
4-3. Complete Range of products, like spare parts which are interchangeable with most of the well-known OEM equipment.
4-2. Order tracking service
5. How is the packing?
All the packing will meet the strict export packing requirement, we surely know how important the beautiful and firm packaging to the goods.
6. What is your terms of payment?
A: Generally by T/T, 30% advance payment, the balance 70% payment should be paid before delivery. We support EXW, FOB, FCA, CFR, CIF, CIP, DAP, DDU and DDP INCO Terms.
