Description
Drill Collar is the basic component in the BHA which provides weight on the bit for drilling and keeps the drill string in tension. JX Petro Drill Collar is manufactured from AISI 4145H modified quenched and tempered steel and is heat treated along its entire length for uniform toughness and durability. Strict metallurgical tests are performed per specifications to ensure that the heat treatment produces consistent and maximum hardness through the depth of the bar.
We could supply slick-type drill collars, spiral drill collars, and Non-magnetic drill collars (NMDC).
Specifics:
| Size (in) | O.D (mm) | I.D. (in) | Code | Thread | Length (mm) | Weight (kg) |
|---|---|---|---|---|---|---|
| 3 1/8 | 79.4 | 1-1/4 | NC23-31 | NC23 | 9140 | 298 |
| 3 1/2 | 88.9 | 1-1/2 | NC26-35 | NC26 | 9140 | 364 |
| 4 1/8 | 104.8 | 2 | NC31-41 | NC31 | 9140/9450 | 474/490 |
| 4 3/4 | 120.6 | 2 | NC35-47 | NC35 | 9140/9450 | 674/697 |
| 5 | 127 | 2-1/4 | NC38-50 | NC38 | 9140/9450 | 725/749 |
| 6 | 152.4 | 2-1/4 | NC44-60 | NC44 | 9140/9450 | 1125/1163 |
| 6 | 152.4 | 2-13/16 | NC44-60 | NC44 | 9140/9450 | 1022/1056 |
| 6 1/4 | 158.8 | 2-1/4 | NC44-62 | NC44 | 9140/9450 | 1237/1279 |
| 6 1/4 | 158.8 | 2-13/16 | NC46-62 | NC44 | 9140/9450 | 1134/1172 |
| 6 1/2 | 165.1 | 2-1/4 | NC46-65 | NC46 | 9140/9450 | 1352/1398 |
| 6 1/2 | 165.1 | 2-13/16 | NC46-65 | NC50 | 9140/9450 | 1249/1291 |
| 6 3/4 | 171.4 | 2-1/4 | NC46-67 | NC46 | 9140/9450 | 1471/1521 |
| 7 | 177.8 | 2-1/4 | NC50-70 | NC50 | 9140/9450 | 1597/1651 |
| 7 | 177.8 | 2-13/16 | NC50-70 | NC50 | 9140/9450 | 1494/1545 |
| 7 1/4 | 184.2 | 2-13/16 | NC50-72 | NC50 | 9140/9450 | 1625/1680 |
| 7 3/4 | 196.8 | 2-13/16 | NC56-77 | NC56 | 9140/9450 | 1895/1960 |
| 8 | 203.2 | 2-13/16 | NC56-80 | NC56 or 6- 5/8REG | 9140/9450 | 2040/2109 |
| 8 1/4 | 209.6 | 2-13/16 | 6-5/8REG | 6-5/8REG | 9140/9450 | 2188/2263 |
| 9 | 228.6 | 2-13/16 | NC61-90 | NC61 | 9140/9450 | 2658/2748 |
| 9 1/2 | 241.3 | 2-13/16 | 7-5/8REG | 7-5/8REG | 9140/9450 | 2954/3054 |
| 9 3/4 | 247.6 | 3 | NC70-97 | NC70 | 9140/9450 | 3127/3234 |
| 10 | 254 | 3 | NC70-100 | NC70 | 9140/9450 | 3308/3421 |
| 11 | 279.4 | 3 | 8-5/8REG | 8-5/8REG | 9140/9450 | 4072/4210 |
| Mechanical properties: <7 inch Drill Collar: Yield Strength≥758MPa, Tensile Strength≥965MPa, Four times elongation ≥13%, Impact energy Ak≥54J (Single impact work≥47J, Average≥54J), Hardness range: 285HB~341HB ≥7inch Drill Collar: Yield Strength≥689MPa, Tensile Strength≥931MPa, Four times elongation≥13%, Impact energy Ak≥54J (Single impact work≥47J, Average≥54J), Hardness range 285HB～341HB | ||||||
| Drill collar can be customized as per customer's design. | ||||||
Drawing
| Brandt Series Screen | |
|---|---|
| Mesh | API20---API325 |
| Dimension | Length:1251mm (49 1/5”) |
| Width: 635mm (24 4/5”) | |
| Weight | Steel frame: 13kg (28.6lb) |
| Composite frame: 12kg (26.4lb) | |
| Screen layer | 2 or 3 Layers |
| Wire mesh material | S.S304 ,S.S316 (Customizable) |
| Frame material | Carbon steel, Composite material |
