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Product Details |
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Drill pipe
Drill pipe is in accordance with API SPEC 5D, it can be divided into two groups:
Group 1--Grade E drill pipe
Group 3--All high strength grades of drill pipe .(Grades X-95, G-105, S-135)
aThe minimum elongation in 2 in.(50.8mm) shall be that determined by the following formula:
e=625,000A0.2/U0.9
where e = minimum elongation in 2 in (50.8 mm) in percent rounded to nearest 0.5%.
A = cross-sectional area of the tensile test specimen in square inches, based on specified outside dia- meter, or nominal specimen width, and specified wall thickness rounded to the nearest 0.01 in.2, or 0.75 in.2, whichever is smaller.
U = specified tensile strength, psi.
Note: See Table 5 in API SPEC 5D for minimum elongation #118alues for various size strip tensile specimens and grades. The minimum elongation for either round bar tensile specimen (0.350-in. diameter with 1.4 -in, gauge length and the 0.500-in. diameter with 2.00-in. gauge length) shall be that shown in Table 5 for a cross-sectional area "A"of 0.20 in.2.
Tolerances on Dimensions
The following tolerance apply to the outside diameter of the drill pipe body immediately behind the upset for a distance of approximately 5 in. for sizes 5-1/2 and smaller, and a distance approxi- mately equal to the OD for sizes larger than 5-1/2. Measurements shall be made with calipers or snap gages.
Inside Diameter: d, is governed by the outside diameter and weight tolerances.
Upset Dimensions:Tolerances on upset dimensions are given in Tables 7 and 8 in API SPEC 5D.
Eccentricity:
Outside Diameter: The maximum eccentricity, measured with a saddle gage (see Figure 5) at a di-stance of 5 to 6 in. from the end of the upset, shall not exceed 0.093 in. (total indicator reading).
Inside Diameter: The maximum eccentricity of the bore of the upset with respect to the outside surface of the drill pipe shall not be more than 1/16 in. (1/8 in. total indicator reading).
Ovality: Maximum ovality, measured with a micrometer on outside diameter of upset shall not exceed 0.093 in.
Drill Pipe Size
Size Weight Designation Calculated Plain-End Weight Outside Diameter Grade Wall Thickness Upset Ends. For Weld-on Tools Joint
Lb/ft kg/m in mm In mm
2 3/8 6.65 6.26 9.32 2.375 60.3 E,X,G,S 0.280 7.11 EU
2 7/8 10.40 9.72 14.48 2.875 73.0 E,X,G,S 0.362 9.19 IU or EU
3 1/2 9.50 8.81 13.12 3.500 88.9 E 0.254 6.45 IU or EU
3 1/2 13.30 12.31 18.34 3.500 88.9 E,X,G,S 0.368 9.35 IU or EU
3 1/2 15.50 14.63 21.79 3.500 88.9 E 0.449 11.40 IU or EU
3 1/2 15.50 14.63 21.79 3.500 88.9 X,G,S 0.449 11.40 EU or IEU
4 14.00 12.93 19.26 4.000 101.6 E,X,G,S 0.330 8.38 IU or EU
4 1/2 13.75 12.24 18.23 4.500 114.3 E 0.271 6.88 IU or EU
4 1/2 16.60 14.98 22.31 4.500 114.3 E,X,G,S 0.337 8.56 EU or IEU
4 1/2 20.00 18.69 27.84 4.500 114.3 E,X,G,S 0.430 10.92 EU or IEU
5 16.25 14.87 22.15 5.000 127.0 X,G,S 0.296 7.52 IU
5 19.50 17.93 26.71 5.000 127.0 E 0.362 9.19 IEU
5 19.50 17.93 26.71 5.000 127.0 X,G,S 0.362 9.19 EU or IEU
5 25.60 24.03 35.79 5.000 127.0 E 0.500 12.70 IEU
5 25.60 24.03 35.79 5.000 127.0 X,G,S 0.500 12.70 EU or IEU
5 1/2 21.90 19.81 29.51 5.500 139.7 E,X,G,S 0.361 9.17 IEU
5 1/2 24.70 22.54 33.57 5.500 139.7 E,X,G,S 0.415 10.54 IEU
6 5/8 25.20 22.19 33.05 6.625 168.3 E,X,G,S 0.330 8.38 IEU
6 5/8 27.70 24.21 36.06 6.625 168.3 E,X,G,S 0.362 9.19 IEU
Tensile
Group Grade Yield Strength Tensile Strength Elongation, Min.Percent in 2 in. (50.80mm)%
Minimum Maximum Minimum
psi Mpa psi Mpa psi Mpa
1 E-75 75000 517 105000 724 100000 689 See footnotea
3 X-95 95000 655 125000 862 105000 724 See footnotea
G-105 105000 724 135000 931 115000 793 See footnotea
S-135 135000 931 165000 1138 145000 1000 See footnotea
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