Standard Drill Collars for gas and oil wells drilling
| Product Type: | Textile Machinery >> Textile Machinery Parts |
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|---|---|---|
| Keyword: | Machinery,Apparel Machinery Parts | |
| Uses: | gas and oil wells drilling | |
| Origin: | China/Beijing | |
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If you are interested, please contact us!
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| MOQ: | 3 Piece/Pieces | |
| Port: | Tianjin XinGang | |
| Payment Terms: | L/C,T/T | |
| Production Capacity: | 7-10 Days | |
| Packing: | Bundle | |
| Delivery Time: | 3 Piece/Pieces per Week | |
- Type: Drill Collar
- Machine Type: Drill Collar
- Place of Origin: China (Mainland)
- Model Number: Standard
- Use: gas and oil wells drilling
- Brand Name: Xinlong
Standard Drill Collar,Slick Drill Collar, provide bit weight to drill bits so that drill pipes are in tension.
Drill Collar
Connection | Drill Collar O.D. | Drill Collar I.D. | Length | Shoulder Taper O.D. | Bending Strength Ratio | |||
mm | in | mm | in | mm | mm | |||
NC23-31 | 79.4 | 3 1/8 | 31.8 | 1 1/4 | 9150 | 76.2 | 2.57:1 | |
NC26-35(2 3/8IF) | 88.9 | 3 1/2 | 38.1 | 1 1/2 | 9150 | 82.9 | 2.42:1 | |
NC31-41(2 7/8IF) | 104.8 | 4 1/8 | 50.8 | 2 | 9150/ 9450 | 100.4 | 2.431 | |
NC35-47 | 120.7 | 4 3/4 | 50.8 | 2 | 9150/ 9450 | 114.7 | 2.581 | |
NC38-50(3 1/2IF) | 127.0 | 5 | 57.2 | 2 1/4 | 9150/ 9450 | 121.0 | 2.381 | |
NC44-60 | 152.4 | 6 | 57.2 | 2 1/4 | 9150/ 9450 | 144.5 | 2.491 | |
NC44-60 | 152.4 | 6 | 71.4 | 2 13/16 | 9150/ 9450 | 144.5 | 2.841 | |
NC44-62 | 158.8 | 6 1/4 | 57.2 | 2 1/4 | 9150/ 9450 | 149.2 | 2.911 | |
NC46-624IF | 158.8 | 6 1/4 | 71.4 | 2 13/16 | 9150/ 9450 | 150.0 | 2.631 | |
NC46-654IF | 165.1 | 6 1/2 | 57.2 | 2 1/4 | 9150/ 9450 | 154.8 | 2.761 | |
NC46-654IF | 165.1 | 6 1/2 | 71.4 | 2 13/16 | 9150/ 9450 | 154.8 | 3.051 | |
NC46-474IF | 171.4 | 6 3/4 | 57.2 | 2 1/4 | 9150/ 9450 | 159.5 | 3.181 | |
NC50-67(4 1/2IF) | 171.4 | 6 3/4 | 71.4 | 2 13/16 | 9150/ 9450 | 159.5 | 2.371 | |
NC50-70(4 1/2IF) | 177.8 | 7 | 57.2 | 2 1/4 | 9150/ 9450 | 164.7 | 2.541 | |
NC50-70(4 1/2IF) | 177.8 | 7 | 71.4 | 2 13/16 | 9150/ 9450 | 164.7 | 2.731 | |
NC50-72(4 1/2IF) | 184.2 | 7 1/4 | 71.4 | 2 13/16 | 9150/ 9450 | 169.5 | 3.121 | |
NC56-77 | 196.8 | 7 3/4 | 71.4 | 2 13/16 | 9150/ 9450 | 185.3 | 2.701 | |
NC56-80 | 203.2 | 8 | 71.4 | 2 13/16 | 9150/ 9450 | 190.1 | 3.021 | |
6 5/8REG | 209.6 | 8 1/4 | 71.4 | 2 13/16 | 9150/ 9450 | 195.7 | 2.931 | |
NC61-90 | 228.6 | 9 | 71.4 | 2 13/16 | 9150/ 9450 | 212.7 | 3.171 | |
7 5/8REG | 241.3 | 9 1/2 | 76.2 | 3 | 9150/ 9450 | 223.8 | 2.811 | |
NC70-97 | 247.6 | 9 3/4 | 76.2 | 3 | 9150/ 9450 | 232.6 | 2.571 | |
NC70-100 | 254.0 | 10 | 76.2 | 3 | 9150/ 9450 | 237.3 | 2.811 | |
8 5/8REG | 279.4 | 11 | 76.2 | 3 | 9150/ 9450 | 266.7 | 2.841 | |
Comments:
Connection: IF- Internal Flush; FH- Full Hole; REG- Regular; NC- Numerical Connection
Product Description:
Drill collars are used to provide bit weight to drill bits so that drill pipes are in tension and can keep drill bits centralized and hole track by large rigidity.
Our drill collars are made of modified AISI 4145H chromium molybdenum alloy steel.
To ensure close tolerance bores, all drill collar bars are trepanned then drifted to API specifications.
Standard drill collars are made of 4145H chromium molybdenum alloy steel.
Residual elements such as sulfur and phosphorus are reduced during the steelmaking process that
make the kind of material with high physical properties.
Note:
When inquiring on drill collars, please specify info. below:
1) Out side diameter, bore and length;
2) Size and type of connection: each end of collar and special joint features;
3) Slick, Spiral or Non-Magnetic ;
4) Other special features: slip and elevator recesses and/or hard band type.
| Company Name: | Hejian Xinlong Drilling Accessories Factory |
|---|---|
| Company Address: | B2-0346 ROOM, CENTURY-TEA-TRADE-CENTER, NO.10 MALIANDAO ROAD |
| Zip: | 100055 |
| Contact Person: | Ms. Suhuan Xu |
| Telephone Number: | 86-10-63407832 |
| Mobile: | 0086 13488763861 |
| Fax Number: | 86-10-63407657 |
| Email: | sales@xinlongzc.cn,webmaster@xydrilling.com,xl-drilling-sales@hotmail.com |
| Homepage: | www.xinlongzc.cn,http://www.xldrilling.com,http://www.xydrilling.com |
