String Book - Logan Oil Tools
String Book - Logan Oil Tools
String Book - Logan Oil Tools
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caSing maKe-Up torQUe — Long threaD<br />
RECoMMEnDED MAkE-up toRQuE *<br />
nominal torque (ft-lb)<br />
o.D. (in) Weight (lb/ft) grade Minimum optimum Maximum<br />
C-75 4750 6330 7910<br />
L-80 4960 6610 8260<br />
32.0 N-80 5040 6720 8400<br />
C-95 5760 7680 9600<br />
P-110 6730 8970 11210<br />
C-75 5270 7030 8790<br />
L-80 5510 7340 9180<br />
7 35.0 N-80 5600 7460 9330<br />
C-95 6400 8530 10660<br />
P-110 7470 9960 12450<br />
C-75 5750 7670 9590<br />
L-80 6010 8010 10010<br />
38.0 N-80 6110 8140 10180<br />
C-95 6980 9310 11640<br />
P-110 8150 10870 13590<br />
J-55 2600 3460 4330<br />
K-55 2830 3770 4710<br />
C-75 3460 4610 5760<br />
26.4 L-80 3620 4820 6030<br />
N-80 3680 4900 6130<br />
C-95 4200 5600 7000<br />
C-75 4070 5420 6780<br />
L-80 4250 5670 7090<br />
29.7 N-80 4310 5750 7190<br />
C-95 4940 6590 8240<br />
P-110 5770 7690 9610<br />
C-75 4760 6350 7940<br />
7-5/8 L-80 4980 6640 8300<br />
33.7 N-80 5060 6740 8430<br />
C-95 5790 7720 9650<br />
P-110 6760 9010 11260<br />
C-75 5630 7510 9390<br />
L-80 5900 7860 9830<br />
39.0 N-80 5980 7980 9980<br />
C-95 6860 9140 11430<br />
P-110 8000 10660 13330<br />
C-75 6390 8520 10650<br />
L-80 6680 8910 11140<br />
42.8 N-80 6800 9060 11330<br />
C-95 7780 10370 12960<br />
P-110 9080 12100 15130<br />
* Data reprinted from API Bulletin RP5C1, “Recommended Practice for Care and Use of Casing,<br />
Tubing, and Drill Pipe,” Twelfth Edition, March 1981.<br />
89
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