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After-sales Service: | 1 Year |
Warranty: | 1 Year |
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Drill Collar
Drill Collar is the basic component in the BHA which provides weight on the bit for drilling and keeps the drill string in tension.
Number And Connection Table | Product Code |
Outside Diameter | Inside Diameter | Length mm | Bevel Diameter mm | Bending Strength Ratio | ||
mm in | mm in | |||||||
NC23-31 | Z01/Z02-01000 | 79.4 | 3 1/8 | 31.8 | 1 1/4 | 9150 | 76.2 | 2.57:1 |
NC26-35(2 3/8 IF) | Z01/Z02-02000 | 88.9 | 3 1/2 | 38.1 | 1 1/2 | 9150 | 84.5 | 2.42:1 |
NC31-41(2 7/8 IF) | Z01/Z02-04000 | 104.8 | 4 1/8 | 50.8 | 2 | 9150 or 9450 | 101.6 | 2.43:1 |
NC35-47 | Z01/Z02-06000 | 120.6 | 4 3/4 | 50.8 | 2 | 9150 or 9450 | 114.7 | 2.58:1 |
NC38-50(3 1/2 IF) | Z01/Z02-07000 | 127 | 5 | 57.2 | 2 1/4 | 9150 or 9450 | 121 | 2.38:1 |
NC44-60 | Z01/Z02-23000 | 152.4 | 6 | 57.2 | 2 1/4 | 9150 or 9450 | 144.5 | 2.49:1 |
NC44-60 | Z01/Z02-23100 | 152.4 | 6 | 71.4 | 2 13/16 | 9150 or 9450 | 144.5 | 2.84:1 |
NC44-62 | Z01/Z02-08000 | 158.8 | 6 1/4 | 57.2 | 2 1/4 | 9150 or 9450 | 149.2 | 2.91:1 |
NC46-62(4 IF) | Z01/Z02-08100 | 158.8 | 6 1/4 | 71.4 | 2 13/16 | 9150 or 9450 | 150 | 2.63:1 |
NC46-65(4 IF) | Z01/Z02-09000 | 165.1 | 6 1/2 | 57.2 | 2 1/4 | 9150 or 9450 | 154.8 | 2.76:1 |
NC46-65(4 IF) | Z01/Z02-09100 | 165.1 | 6 1/2 | 71.4 | 2 13/16 | 9150 or 9450 | 154.8 | 3.05:1 |
NC46-67(4 IF) | Z01/Z02-11000 | 171.4 | 6 3/4 | 57.2 | 2 1/4 | 9150 or 9450 | 159.5 | 3.18:1 |
NC50-67(4 1/2 IF) | Z01/Z02-11100 | 171.4 | 6 3/4 | 71.4 | 2 13/16 | 9150 or 9450 | 159.5 | 2.37:1 |
NC50-70(4 1/2 IF) | Z01/Z02-12000 | 177.8 | 7 | 57.2 | 2 1/4 | 9150 or 9450 | 164.7 | 2.54:1 |
NC50-70(4 1/2 IF) | Z01/Z02-12100 | 177.8 | 7 | 71.4 | 2 13/16 | 9150 or 9450 | 164.7 | 2.73:1 |
NC50-72(4 1/2 IF) | Z01/Z02-24000 | 184.2 | 7 1/4 | 71.4 | 2 13/16 | 9150 or 9450 | 169.5 | 3.12:1 |
NC56-77 | Z01/Z02-13000 | 196.8 | 7 3/4 | 71.4 | 2 13/16 | 9150 or 9450 | 185.3 | 2.70:1 |
NC56-80 | Z01/Z02-14000 | 203.2 | 8 | 71.4 | 2 13/16 | 9150 or 9450 | 190.1 | 3.02:1 |
6 5/8 REG | Z01/Z02-15000 | 209.6 | 8 1/4 | 71.4 | 2 13/16 | 9150 or 9450 | 195.7 | 2.93:1 |
NC61-90 | Z01/Z02-16000 | 228.6 | 9 | 71.4 | 2 13/16 | 9150 or 9450 | 212.7 | 3.17:1 |
7 5/8 REG | Z01/Z02-17000 | 241.3 | 9 1/2 | 76.2 | 3 | 9150 or 9450 | 223.8 | 2.81:1 |
NC70-97 | Z01/Z02-25000 | 247.6 | 9 3/4 | 76.2 | 3 | 9150 or 9450 | 232.6 | 2.57:1 |
NC70-100 | Z01/Z02-18000 | 254 | 10 | 76.2 | 3 | 9150 or 9450 | 237.3 | 2.81:1 |
8 5/8 REG | Z01/Z02-19000 | 279.4 | 11 | 76.2 | 3 | 9150 or 9450 | 266.7 | 2.84:1 |
Established in 1973 as a state-owned Mudanjiang Petroleum Machinery Factory. After 50 years a new private company(Tianhe) was registered and established in 2006. At present, Tianhe Group has 5 sales companies, including Chengdu, Beijing, Shanghai, Yanan, Mudanjiang branches. 2 large factories, in cluding Mudanjiang and Shanghai factory, controlling the important sales territories in China. The company is also actively expanding its business overseas. Currently, more than 50 countries and regions around the world, as well as over 200 well-known oil companies and service company customers, are using products under the Tianhe brand. Tianhe has become one of the most popular Asian oil brands.
1.The company has over 50 years of professional production experience and is capable of independently manufacturing a complete range of downhole tools, including: drill pipes, drill collars, stabilizers, jars, fishing tools, etc.
2. We have a strict quality control system, conducting strict quality checks from raw materials to finished products.
3.The company has obtained ISO9001 quality system certification and holds API certificates such as 5CT, 5DP, 7-1, Q1, etc.
4.The minimum order quantity is 1, and the delivery cycle can be strictly controlled.
5.Our export products have been recognized by customers in more than 50 countries and regions.
1.Q:Are you a factory or trading company?
We are a factory and the Top 3 of oildrilling equipment manufacturer.
2.Q:Where is your factory located?
We locate in Heilongjiang Province, China.
3. Q:What do your factory do regarding quality control?
From material to products, we inspect each process to keep good quality.
And SGS inspection can be accepted.
4.Q:How about MOQ ?
We have stock of common sizes at hand, so even few ton is accepted.
5.Q:How about payment ?
Both T/T and L/C can be accepted.
6.Q: How long does your warranty?
We can assured the quality within 90 days after receiving the cargoes.