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Introduction
Units of Measurement
Common Minerals and Metals
Useful Conversion Factors
Useful Formulas
Capacity Tables
Hole Capacity
Drill Pipe Capacity and Displacement
API Casing and Liner Capacity and Displacement
Annular Capacity
Annular Velocity
Single Salt Fluid Composition and Blending Tables
Ammonium Chloride Composition and Blending Tables
Potassium Chloride Composition and Blending Tables
Sodium Chloride Composition and Blending Tables
Sodium Formate Composition and Blending Tables
Potassium Formate Composition and Blending Tables
Sodium Bromide Composition and Blending Tables
Calcium Chloride Composition and Blending Tables
Calcium Bromide Composition and Blending Tables
Hole Capacity
Blue Line
TABLE 16. Hole Capacity


Hole Capacity
Hole Diameter Capacity Capacity
in bbl/ft ft/bbl
3 0.0087 114.387
3-1/8 0.0095 105.419
3-1/4 0.0103 97.466
3-3/8 0.0111 90.380
3-1/2 0.0119 84.040
3-5/8 0.0128 78.344
3-3/4 0.0137 73.208
3-7/8 0.0146 68.561
4 0.0155 64.343
4-1/8 0.0165 60.502
4-1/4 0.0175 56.996
4-3/8 0.0186 53.785
4-1/2 0.0197 50.839
4-5/8 0.0208 48.128
4-3/4 0.0219 45.628
4-7/8 0.0231 43.318
5 0.0243 41.179
5-1/8 0.0255 39.195
5-1/4 0.0268 37.351
5-3/8 0.0281 35.634
5-1/2 0.0294 34.033
5-5/8 0.0307 32.537
5-3/4 0.0321 31.138
5-7/8 0.0335 29.827
6 0.0350 28.597
6-1/8 0.0364 27.442
6-1/4 0.0379 26.355
6-3/8 0.0395 25.331
6-1/2 0.0410 24.367
6-5/8 0.0426 23.456
6-3/4 0.0443 22.595
6-7/8 0.0459 21.781
7 0.0476 21.010
7-1/8 0.0493 20.279
7-1/4 0.0511 19.586
7-3/8 0.0528 18.928
7-1/2 0.0546 18.302
7-5/8 0.0565 17.707
7-3/4 0.0583 17.140
7-7/8 0.0602 16.600
8 0.0622 16.086
8-1/8 0.0641 15.595
8-1/4 0.0661 15.126
8-3/8 0.0681 14.677
8-1/2 0.0702 14.249
8-5/8 0.0723 13.839
8-3/4 0.0744 13.446
8-7/8 0.0765 13.070
9 0.0787 12.710
9-1/8 0.0809 12.364
9-1/4 0.0831 12.032
9-3/8 0.0854 11.713
9-1/2 0.0877 11.407
9-5/8 0.0900 11.113
9-3/4 0.0923 10.830
9-7/8 0.0947 10.557
10 0.0971 10.295
10-1/8 0.0996 10.042
10-1/4 0.1021 9.799
10-3/8 0.1046 9.564
10-1/2 0.1071 9.338
10-5/8 0.1097 9.119
10-3/4 0.1123 8.908
10-7/8 0.1149 8.705
11 0.1175 8.508
11-1/8 0.1202 8.318
11-1/4 0.1229 8.134
11-3/8 0.1257 7.956
11-1/2 0.1285 7.784
11-5/8 0.1313 7.618
11-3/4 0.1341 7.457
11-7/8 0.1370 7.301
12 0.1399 7.149
12-1/8 0.1428 7.003
12-1/4 0.1458 6.860
12-3/8 0.1488 6.722
12-1/2 0.1518 6.589
12-5/8 0.1548 6.459
12-3/4 0.1579 6.333
12-7/8 0.1610 6.210
13 0.1642 6.092
13-1/8 0.1673 5.976
13-1/4 0.1705 5.864
13-3/8 0.1738 5.755
13-1/2 0.1770 5.649
13-5/8 0.1803 5.546
13-3/4 0.1836 5.445
13-7/8 0.1870 5.348
14 0.1904 5.252
14-1/8 0.1938 5.160
14-1/4 0.1972 5.070
14-3/8 0.2007 4.982
14-1/2 0.2042 4.896
14-5/8 0.2078 4.813
14-3/4 0.2113 4.732
14-7/8 0.2149 4.653
15 0.2186 4.575
15-1/8 0.2222 4.500
15-1/4 0.2259 4.427
15-3/8 0.2296 4.355
15-1/2 0.2334 4.285
15-5/8 0.2371 4.217
15-3/4 0.2410 4.150
15-7/8 0.2448 4.085
16 0.2487 4.021
16-1/8 0.2526 3.959
16-1/4 0.2565 3.899
16-3/8 0.2605 3.839
16-1/2 0.2645 3.781
16-5/8 0.2685 3.725
16-3/4 0.2725 3.669
16-7/8 0.2766 3.615
17 0.2807 3.562
17-1/4 0.2890 3.460
17-1/2 0.2975 3.362
17-3/4 0.3060 3.268
18 0.3147 3.177
18-1/4 0.3235 3.091
18-1/2 0.3324 3.008
18-3/4 0.3415 2.928
19 0.3507 2.852
19-1/4 0.3599 2.778
19-1/2 0.3694 2.707
19-3/4 0.3789 2.639
20 0.3885 2.574
20-1/4 0.3983 2.511
20-1/2 0.4082 2.450
20-3/4 0.4182 2.391
21 0.4284 2.334
21-1/4 0.4386 2.280
21-1/2 0.4490 2.227
21-3/4 0.4595 2.176
22 0.4701 2.127
22-1/4 0.4809 2.080
22-1/2 0.4918 2.034
22-3/4 0.5027 1.989
23 0.5138 1.946
23-1/4 0.5251 1.904
23-1/2 0.5364 1.864
23-3/4 0.5479 1.825
24 0.5595 1.787
24-1/4 0.5712 1.751
24-1/2 0.5831 1.715
24-3/4 0.5950 1.681
25 0.6071 1.647
26 0.6566 1.523
27 0.7081 1.412
28 0.7615 1.313
29 0.8169 1.224
30 0.8742 1.144
31 0.9335 1.071
32 0.9947 1.005


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