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Common Dimensions

 
 
Drift Dimensions
API Bare Pipe Drift Dimensions   Thermoplastic Lined Pipe Drift Dimensions
PipeSize (OD) Weight Wall Thickness Nominal ID Drift Diameter Pipe Size (OD) Polycore™ Drift Modified Polycore™ Enertube™ Drift Ultratube™ Drift ExtremeTube™ Drift
2 3/8 4.70 0.190 1.995 1.901 2 3/8 1.600 1.516 1.516 1.600 1.600
2 7/8 6.50 0.217 2.441 2.347 2 7/8 2.000 1.901 1.901 2.000 2.000
3 1/2 9.30 0.254 2.992 2.867 3 1/2 2.500 2.347 2.347 2.500 2.500
4 1/2 12.75 0.271 3.958 3.833 4 1/2 3.400 3.215 3.400 3.400 3.400
4 1/2 Casing 10.50 0.224 4.052 3.927 4 1/2 Casing 3.400 TBD 3.400 3.400 3.400
11.60 0.250 4.000 3.875 3.400 TBD 3.400 3.400 3.400
5 1/2 Casing 15.50 0.275 4.950 4.825 5 1/2 Casing 4.300 TBD 4.300 4.300 4.300
17.00 0.304 4.892 4.767 4.300 TBD 4.250 4.300 4.300
20.00 0.361 4.778 4.653 4.200 3.927 4.150 4.200 4.200
7 Casing 23.00 0.317 6.366 6.241 7 Casing 5.600 TBD TBD TBD TBD
 
Coupling OD Dimensions
  EUE Tubing   NUE Tubing   Casing   Buttress
Pipe Size (OD) Regular Sp Clearance   Regular Sp Clearance STC or LTC Regular Sp Clearance
2 3/8 Tubing 3.063 2.910   2.875 2.700   NA   NA NA
2 7/8 Tubing 3.668 3.460   3.500 3.220   NA   NA NA
3 1/2 Tubing 4.500 4.180   4.250 3.865   NA   NA NA
4 1/2 Tubing 5.563 5.094   5.200 TBD   NA   NA NA
4 1/2 Casing NA NA   NA NA   5.000   5.000 4.875
5 1/2 Casing NA NA   NA NA   6.050   6.050 5.875
7 Casing NA NA   NA NA   7.875   7.875 7.375
 
API Minimum Torque (75% of Optimum)   Rod Box OD
Thread Pipe Size Weight J-55 L-80 N-80     Rod Size Regular Slimhole
EUE 8rd 2 3/8" Tbg 4.70 970 1,320 1,350 foot-pounds 5/8" 1.500 1.250
2 7/8" Tbg 6.50 1,240 1,690 1,730 foot-pounds 3/4" 1.625 1.500
3 1/2" Tbg 9.30 1,710 2,350 2,400 foot-pounds 7/8" 1.8125 1.625
4 1/2" Tbg 12.75 2,150 2,960 3,020 foot-pounds 1" 2.1875 2.000
NUE 10rd 2 3/8" Tbg 4.60 550 750 770 foot-pounds 1 1/8" 2.375 2.250
2 7/8" Tbg 6.40 790 1,080 1,110 foot-pounds      
3 1/2" Tbg 9.20 1,110 1,530 1,560 foot-pounds Insert Pump
NUE 8rd 4 1/2" Tbg 12.60 1,310 1,800 1,830 foot-pounds Insert Bore Barrel OD (Thin Wall) Hold Down
No-Go Seat
STC 4 1/2" Csg 11.60 1,160 --- --- foot-pounds 1 1/4" 1.500 1.562
5 1/2" Csg 15.50 1,520 --- --- foot-pounds 1 1/2" 1.750 1.875
  17.00 1,720 --- --- foot-pounds 2" 2.250 2.344
7" Csg 23.00 2,130 --- --- foot-pounds      
LTC 4 1/2" Csg 11.60 1,220 1,680 1,710 foot-pounds      
5 1/2" Csg 15.50 1,630 --- --- foot-pounds      
  17.00 1,860 2,560 2,610 foot-pounds      
7" Csg 23.00 2,350 3,270 3,320 foot-pounds      
BTC All Size and Grades

Position Make-Up. As per API 5C1:
"makeup torque values should be determined by carefully noting the torque required to make up each of several connections to the base of the triangle; then using the torque value thus established, make up the balance of the pipe of that particular weight and grade in the string."

WF Recommends Minimum API Torque

Recommended Pratices: 432-563-3838