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String Book - Logan Oil Tools

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0<br />

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

Drill Drill Collar Bore (in)<br />

Connection Collar<br />

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

7 32,500 - 35,750 32,500 - 35,750 32,500 - 35,750 32,500 - 35,750 … Box<br />

5-1/2 API Full Hole 7-1/4 40,500 - 44,550 40,500 - 44,550 40,500 - 44,550 40,500 - 44,550 … Box<br />

7-1/2 49,000 - 53,900 47,000 - 51,700 45,000 - 49,500 41,500 - 45,650 … Pln<br />

7-3/4 51,000 - 56,100 47,000 - 51,700 45,000 - 49,500 41,500 - 45,650 … Pin<br />

7-1/4 40,000 - 44,000 40,000 - 44,000 40,000 - 44,000 40,000 - 44,000 … Box<br />

API NC 56 7-1/2 48,500 - 53,350 48,000 - 52,800 45,000 - 49,500 42,000 - 46,200 … Pin<br />

7-3/4 51,000 - 56,100 48,000 - 52,800 45,000 - 49,500 42,000 - 46,200 … Pin<br />

8 51,000 - 56,100 48,000 - 52,800 45,000 - 49,500 42,000 - 46,200 … Pin<br />

7-1/2 46,000 - 50,600 46,000 - 50,600 46,000 - 50,600 46,000 - 50,600 … Box<br />

6-5/8 API Regular 7-3/4 55,000 - 60,500 53,000 - 58,300 50,000 - 55,000 47,000 - 51,700 … Pin<br />

8 57,000 - 62,700 53,000 - 58,300 50,000 - 55,000 47,000 - 51,700 … Pin<br />

8-1/4 57,000 - 62,700 53,000 - 58,300 50,000 - 55,000 47,000 - 51,700 … Pln<br />

7-1/2 46,000 - 50,600 46,000 - 50,600 46,000 - 50,600 46,000 - 50,600 … Box<br />

6-5/8 H-90 7-3/4 55,000 - 60,500 55,000 - 60,500 53,000 - 58,300 49,500 - 54,450 … Pin<br />

8 59,500 - 65,450 56,000 - 61,600 53,000 - 58,300 49,500 - 54,450 … Pin<br />

8-1/4 59,500 - 65,450 56,000 - 61,600 53,000 - 58,300 49,500 - 54,450 … Pin<br />

8 54,000 - 59,400 54,000 - 59,400 54,000 - 59,400 54,000 - 59,400 … Box<br />

8-1/4 64,000 - 70,400 64,000 - 70,400 64,000 - 70,400 61,000 - 67,100 … Pin<br />

API NC 61 8-1/2 72,000 - 79,200 68,000 - 74,800 65,000 - 71,500 61,000 - 67,100 … Pin<br />

8-3/4 72,000 - 79,200 68,000 - 74,800 65,000 - 71,500 61,000 - 67,100 … Pin<br />

9 72,000 - 79,200 68,000 - 74,800 65,000 - 71,500 61,000 - 67,100 … Pin<br />

8 56,000 - 61,600 56,000 - 61,600 56,000 - 61,600 56,000 - 61,600 56,000 - 61,600 Box<br />

8-1/4 66,000 - 72,600 66,000 - 72,600 66,000 - 72,600 63,000 - 69,300 59,000 - 64,900 Pin<br />

5-1/2 API IF 8-1/2 74,000 - 81,400 70,000 - 77,000 67,000 - 73,700 63,000 - 69,300 59,000 - 64,900 Pin<br />

8-3/4 74,000 - 81,400 70,000 - 77,000 67,000 - 73,700 63,000 - 69,300 59,000 - 64,900 Pin<br />

9 74,000 - 81,400 70,000 - 77,000 67,000 - 73,700 63,000 - 69,300 59,000 - 64,900 Pin<br />

9 -1/4 74,000 - 81,400 70,000 - 77,000 67,000 - 73,700 63,000 - 69,300 59,000 - 64,900 Pin<br />

Weak<br />

Member<br />

* Adapted from API RP7G

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