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Normal Drill Collars
- 1000 Metric Ton / Metric Tons per Month
- Tianjin Shanghai
- T/T
Product Details
Thickness: | 10, 280 | ||||
Section Shape: | Round | Outer Diameter: | 79.4 - 279.4 mm | Place of Origin: | China |
Secondary Or Not: | Non-secondary | Application: | Other, Drill Collar | Technique: | Cold Rolled |
Certification: | API | Surface Treatment: | Copper Coated | Special Pipe: | API Pipe |
Alloy Or Not: | Is Alloy |
Packaging Details
bundle or as per as your requirement
Product Description
Specifications
1.Standard: API 7-12.AISI 4145H or 4145H modified alloy steel
3.Strict quality assurance system
4.Reasonable price
Drill Collar
Product Explanation:Drill collars are made of AISI 4145H or 4145H modified alloy steel. And it is used between the drill pipe and the bit in the drill stem. The chemical composition should be controlled strictly during the refining and forging process. It is used to put weight on the bit so that the bit can drill.
Product types and specifications:
Drill Collar Number and Connection Label | OD | ID | Length | BD | Referenced bending Strength Ratio |
mm | mm | ||||
+1.59 | m | mm | |||
+152.4mm | |||||
NC23-31 | 79.4 | 31.8 | 9.14 | 76.2 | 2.57:1 |
NC26-35 | 88.9 | 38.1 | 9.14 | 82.9 | 2.42:1 |
NC31-41 | 104.8 | 50.8 | 9.14 / 9.45 | 100.4 | 2.43:1 |
NC35-47 | 120.6 | 50.8 | 9.14 / 9.45 | 114.7 | 2.58:1 |
NC38-50 | 127.0 | 57.2 | 9.14 / 9.45 | 121.0 | 2.38;1 |
NC44-60 | 152.4 | 57.2 | 9.14 / 9.45 | 144.5 | 2.49:1 |
NC44-60 | 152.4 | 71.4 | 9.14 / 9.45 | 144.5 | 2.84:1 |
NC44-62 | 158.8 | 57.2 | 9.14 / 9.45 | 149.2 | 2.91:1 |
NC46-62 | 158.8 | 71.4 | 9.14 / 9.45 | 150.0 | 2.63:1 |
NC46-65 | 165.1 | 57.2 | 9.14 / 9.45 | 154.8 | 2.76:1 |
NC46-65 | 165.1 | 71.4 | 9.14 / 9.45 | 154.8 | 3.05:1 |
NC46-67 | 171.4 | 57.2 | 9.14 / 9.45 | 159.5 | 3.18:1 |
NC50-70 | 177.8 | 57.2 | 9.14 / 9.45 | 164.7 | 2.54:1 |
NC50-70 | 177.8 | 71.4 | 9.14 / 9.45 | 164.7 | 2.73:1 |
NC50-72 | 184.2 | 71.4 | 9.14 / 9.45 | 169.5 | 3.12:1 |
NC56-77 | 196.8 | 71.4 | 9.14 / 9.45 | 185.3 | 2.70:1 |
NC56-80 | 203.2 | 71.4 | 9.14 / 9.45 | 190.1 | 3.02:1 |
65/8 REG | 209.6 | 71.4 | 9.14 / 9.45 | 195.6 | 2.93:1 |
NC61-90 | 228.6 | 71.4 | 9.14 / 9.45 | 212.7 | 3.17:1 |
75/8 REG | 241.3 | 76.2 | 9.14 / 9.45 | 223.8 | 2.81:1 |
NC70-97 | 247.6 | 76.2 | 9.14 / 9.45 | 232.6 | 2.57:1 |
NC70-100 | 254.0 | 76.2 | 9.14 / 9.45 | 237.3 | 2.81:1 |
85/8 REG | 279.4 | 76.2 | 9.14 / 9.45 | 266.7 | 2.84:1 |
Company Profile
As a professional supplier of OCTG, drilling equipment and workover service, Sinotai Petroleum Equipment Co., Ltd. lies in the production base of petroleum equipment and China's second largest oil field --Shengi Oilfield. Our company is a high-tech enterprise in Dongying City with business scope covering the sale, trading, post-sale service and technological development of a wide variety of petroleum equipment.
Besides OCTG, we provide our customers with other drilling and oil recovery equipment like fishing tools, cementing tools, workover rigs, pumping units and OCTG accessories.
The striving target of our company is "Prestige first, Quality supreme; The shortest delivery time, The lowest price, The best quality". Customers' needs are our first priority and customer satisfaction is the bottom line by which we measure our success.
Contact Us
- Sinotai Petroleum Equipment Co., Ltd.
- Contact nameHerish Kuo
- Phone86-546-8300512
- AddressNo. 107, Bldg. 45, Gaoerfu, Wanda, Dongcheng
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