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String Book - Logan Oil Tools

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8<br />

DriLL coLLar torQUe recommenDationS (ft-LBS) *<br />

Drill Drill Collar Bore (in)<br />

Connection Collar<br />

Size type o.D. - / - / - / - / 6<br />

4-3/4 8,700 - 9,570 8,700 - 9,570 8,700 - 9,570 8,700 - 9,570 8,700 - 9,570 Box<br />

3-1/2 H-90 5 12,700 - 13,970 12,700 - 13,970 12,700 - 13,970 12,700 - 13,970 19,400 - 11,440 Pin<br />

5-1/4 16,900 - 18,590 16,700 - 18,370 15,000 - 16,500 13,100 - 14,410 10,400 - 11 440 Pin<br />

5-1/2 18,500 - 20,350 16,700 - 18,370 15,000 - 16,500 13,100 - 14,410 10,400 - 11,440 Pin<br />

4 API Full Hole 5 10,800 - 11,880 10,800 - 11,880 10,800 - 11,880 10,800 - 11,880 10,800 - 11,880 Box<br />

API NC 40 5-1/4 15,100 - 16,610 15,100 - 16,610 15,100 - 16,610 14,800 - 16,280 12,100 - 13,310 Pin<br />

5-1/2 19,700 - 21,670 18,600 - 20,460 16,900 - 18,590 14,800 - 16,280 12,100 - 13,310 Pin<br />

4 Mod. Open 5-3/4 20,400 - 22,440 18,600 - 20,460 16,900 - 18,590 14,800 - 16,280 12,100 -13,310 Pin<br />

4-1/2 Dbl. Streamline 6 20,400 - 22,440 18,600 - 20,460 16,900 - 18,590 14,800 - 16,280 12,100 - 13,310 Pin<br />

5-1/4 12,500 - 13,750 12,500 - 13,750 12,500 - 13,750 12,500 - 13,750 Box<br />

5-1/2 17,300 - 19,030 17,300 - 19,030 17,300 - 19,030 16,500 - 18,150 Pin<br />

5-3/4 22,300 - 24,530 21,500 - 23,650 19,400 - 21,340 16,500 - 18,150 Pin<br />

4 H-90 6 23,500 - 25,850 21,500 - 23,650 19,400 - 21,340 16,500 - 18,150 Pin<br />

6-1/4 23,500 - 25,850 21 500 - 23,650 19,400 - 21,340 16,500 - 18,150 Pin<br />

5-1/2 15,400 - 16,940 15,400 - 16,940 15,400 - 16,940 15,400 - 16,940 Box<br />

4-1/2 API Regular 5-3/4 20,300 - 22,330 20,300 - 22,330 19,400 - 21,340 16,200 - 17,820 Pin<br />

6 23,400 - 25,740 21,600 - 23,760 19,400 - 21,340 16,200 - 17,820 Pin<br />

6-1/4 23,400 - 25,740 21,600 - 23-760 19,400 - 21,340 16,200 - 17,820 Pin<br />

5-3/4 20,600 - 22,660 20,600 - 22,660 29,600 - 22,660 18,000 - 19,800 Pin<br />

6 25,000 - 27,500 23,300 - 25,630 21,200 - 23,320 18,900 - 19,800 Pln<br />

API NC 44 6-1/4 25,000 - 27,500 23,300 - 25,630 21,200 - 23,320 18,000 - 19,800 Pin<br />

6-1/2 25,000 - 27,500 23,300 - 25,630 21,200 - 23,320 18,000 - 19,800 Pin<br />

5- 1/2 12,900 - 14,190 12,900 - 14,190 12,900 - 14,190 12,900 - 14,190 12,900 - 14,190 Box<br />

5-3/4 17,900 - 19,690 17,900 - 19,690 17,900 - 19,690 17,900 - 19,690 17,700 - 19,470 Pin<br />

4-1/2 API Full Hole 6 23,300 - 25,630 23,300 - 25,630 22 800 - 25,080 19,800 - 21,780 17,700 - 19,470 Pin<br />

6-1/4 27,000 - 29,700 25,000 - 27,500 22,800 - 25,080 19,800 - 21,780 17,700 - 19,470 Pin<br />

6 -1/2 27,000 - 29,700 25,000 - 27,500 22,800 - 25,080 19,800 - 21,780 17,700 - 19,470 Pin<br />

Weak<br />

Member<br />

* Adapted from API RP7G

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