Products
Model No.: NROQ
Status: New
Types Of: Core Drilling Rig
Warranty Period: 1 Year
Marketing Type: Ordinary Product
Mechanical Test Report: Provided
Video Factory Inspection: Provided
Core Component Warranty Period: 1 Year
Transportation: Ocean,Land
Payment Type: L/C,T/T,D/P
Incoterm: FOB,CFR
TUBING
• High quality alloy steel tubing
• Consistent straightness and heat treatment
• All tubing available in DCDMA sizes
THREAD
• Tapered, course threads (3 threads per inch) provides easy make
and break
• Load efficiency of 30% provides sufficient strength for average
applications
THRU-WALL HEAT TREATMENT
• Provides 140% material strength
• Heat treated box threads significantly increases thread wear life
CASE HARDENING
• Significant research, development and field testing have resulte din
a hardening process that is unequalled
• Pin thread crest is hardened to nominal 55 HRc to eliminate
damaging ‘adhesion’ wear
• Eliminates the transfer of wear material back and forth which is
what happens between threads of equal hardness, leading to large
scalegalling and joint seizing.
| Product name | Product code | Description | O.D （mm） | I.D （mm） | Net weight （kg） | Gross weight （kg） | Thread pitch （mm） | Thread length （mm） | Product length （mm） |
| NROQ-10' | 20300201 | 10 ' | ￠69.9 | ￠60.3 | 23.9 | 24.3 | 8.47 | 42 | 3048 |
| NROQ-3M | 20300202 | 3M | ￠69.9 | ￠60.3 | 23.5 | 23.9 | 8.47 | 42 | 3000 |
| NROQ-5' | 20300203 | 5 ' | ￠69.9 | ￠60.3 | 11.95 | 12.35 | 8.47 | 42 | 1524 |
| NROQ-1.5M | 20300204 | 1.5M | ￠69.9 | ￠60.3 | 11.76 | 12.16 | 8.47 | 42 | 1500 |
| Product name | Label color | Package L （mm） | Package W （mm） | Package H （mm） | Weight of each bundle (kg)/19 pcs | Rated depth | Maximum rated torque | Maximum rated tension |
| NROQ-10' | Orange | 3150 | 360 | 320 | 461.7 | 3000m（9800ft） | 2400Nm（1750ft-lb） | 330kN（75000 lbf） |
| NROQ-3M | Orange | 3100 | 360 | 320 | 454.5 | |||
| NROQ-5' | Orange | 1620 | 360 | 320 | 234.6 | |||
| NROQ-1.5M | Orange | 1600 | 360 | 320 | 231 |
| Performance description | NROQ | |
| Metric | Imperial | |
| Rated drilling depth calculated as per joint strength | 3000 m | 9800 ft |
| Maximum rated tension | 330 kN | 72005 lb |
| Maximum rated torque | 2350 Nm | 1713 ft-lb |
| For deep hole over 2000m, recommended minimum torque | 1350 Nm | 1010 ft-lb |
| For deep hole over 1000m, recommended minimum torque | 950 Nm | 712 ft-lb |
| Recommended minimum torque | 590 Nm | 434 ft-lb |
| Theoretical blast pressure at API inner thread end (as per API published 5C3) | 49600 kPa | 7200 psi |
| Theoretical blast pressure in API middle part (as per API published 5C3) | 75200 kPa | 10906 psi |
| Theoretical collapse pressure of API middle (as per API published 5C3) | 73600 kPa | 10680 psi |
| Outer diameter of product | 69.9 mm | 2.75 in |
| Inner diameter of product | 60.3 mm | 2.38 in |
| Deviation resistance of rod (rigidity) | 13120 mm | 20.37 in |
| Bar content weight per unit length (water) | 2.8 L/m | 0.22 gal/ft |
| Displacement of rod per unit length (water) | 0.85 L/m | 0.037 gal/ft |
Product Categories : Wireline Coring Drill Rod > NQ and NR drill rod
Home > Products > Wireline Coring Drill Rod > NQ and NR drill rod > NRQ Q Coring Drill Rod 3m
Send Inquiry
Mr. LIU
Email:
Send Inquiry Tel:+86-531-87188351
Fax:
Mobile Phone:+8618678878844
Email:
Address:huaiyin district Jingshi Road NO.24566, Jinan, Shandong
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