Audited Supplier
| Drill collar Number and Connection (mm) | Outside Diameter (mm) | Bore Diameter (mm) | Length (mm) | Shoulder guide angle diameter mm | |
| NC23-31 | 79.4 | 31.8 | 9150 | 76.2 | |
| NC26-35 | 88.9 | 38.1 | 82.9 | ||
| NC31-41 | 104.8 | 50.8 | 100.4 | ||
| NC35-47 | 120.7 | 50.8 | 114.7 | ||
| NC38-50 | 127 | 57.2 | 121 | ||
| NC44-60 | 152.4 | 57.2 | 9150 or 9450 | 144.5 | |
| NC44-60 | 152.4 | 71.4 | 144.5 | ||
| NC46-62 | 158.8 | 57.2 | 149.2 | ||
| NC46-62 | 158.8 | 71.4 | 150 | ||
| NC46-65 | 165.1 | 57.2 | 154.8 | ||
| NC46-65 | 165.1 | 71.4 | 154.8 | ||
| NC46-67 | 171.4 | 57.2 | 159.5 | ||
| NC50-67 | 171.4 | 71.4 | 159.5 | ||
| NC50-70 | 177.8 | 57.2 | 164.7 | ||
| NC50-70 | 177.8 | 71.4 | 164.7 | ||
| NC50-72 | 184.2 | 71.4 | 169.5 | ||
| NC56-77 | 196.8 | 71.4 | 185.3 | ||
| NC56-80 | 203 | 71.4 | 190.1 | ||
| 6-5/8REG | 209.6 | 71.4 | 195.7 | ||
| NC61-90 | 228.6 | 71.4 | 212.7 | ||
| 7-5/8REG | 241.3 | 76.2 | 223.8 | ||
| NC70-97 | 247.6 | 76.2 | 232.6 | ||
| NC70-100 | 254 | 76.2 | 237.3 | ||
| 8-5/8REG | 279.4 | 76.2 | 266.7 | ||
Features
(1)Eccentric-weight drill collar is an effective anti-deviation drilling tool,with high drill pressure used in oblique areas,rectifying oblique as well.
(2)When drilling directional wells eccentric-weight drill collar is an effective tool to reduce oblique or straighten the well hole using high drilling pressure.
(3)Eccentric-weight drill collar has the advantages of simple structure,convenient use,connected directly to common drill collar without centralizers,greatly convenient for sinking in,fishing and milling operations.
(4)Eccentric-weight drill collar runs downhole safely,danger of leakage or bit freezing hard to appear.
(5)Pay much attention to avoid mud balling and prevent effect of anti-deviation .
Hebei Xinhuafa Petroleum Machinery Co, Ltd. is a specialized manufacturer that
focus on the manufacturing of oil drilling equipment and spare parts since 2006. Our main products are mud pump and accessories which can be interchangeable with many mud pump of oversea and domestic brand,including BOMCO F series, HHF series, NOV P series,LANSHI 3NB series, Oingzhou 3NB series and other mud pump. The products we supply are the cylinder liner, piston,valve(full open type and web type), piston rod, extension rod, cross head, bearing,v belt ,safety valve,manifold,sealing and other mud pump accessories.
The products all meet the requirements of IS09001, and API-7K (American Petroleum Association) standards.Since 2023,we expand our workshop which cover 20000 sqm,which can improve our production capacity and products stocks.
During the almost 20 years development,we have many advantages as below:
1.The company is located in Hengshui City which 2 hours by high speed train from Being.Very convenient if customers come to visit .
2.The factory is equipped with advanced machine, many technician with rich experience,strict quality control procedure make sure to supply best quality product.
3. Production capacity is 3000 units /month,and inventory enough can timely meet customer needs.
4. Perfect after-sales service and immediate response service at 24/7.
Principle: focus on service, and strive to achieve win-win for customers, employees and company.
Orientation: A professional One-stop supplier of oil and gas drilling equipment.
Mission: To provide high quality products and services for the oil and energy industry.
Values: Take responsibility and work hard,with seizing the day
Vision: To serve more than 80% of oil and gas drilling engineering customers within 5 years.
1. Do you have OEM service? Do you supply the parts?
