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钻杆在钻探过程中具有举足轻重的作用,它将钻机扭矩传递给钻头,实现钻进。在钻孔中,钻杆承受着非常复杂的载荷,几乎同时承受了拉、压、扭转、弯曲等应力,并且钻杆柱本身是一个弹性系统,钻进过程中钻井液的循环和钻杆柱的振动使得钻杆柱承受了很大的动载。

钻杆分类:

E75、X95、G105、S135等。

钻杆性能表:

摩擦焊焊区机械性能
屈服强度抗拉强度伸长率导向弯曲冲击功(Akv)硬度
HRC
          性能
项目
MPaMPa%
J
标准钢级拉伸试样:¢12.5;冲击试样:10×10 夏比-V、20℃
SY/T5561-92焊区规定E-75 ≥517≥689≥13/平均值≥20
最低值≥15
/
X-95≥609≥712//
G-105≥655≥724//
S-135≥724≥793//
API对焊区规定E-75 ≥609≥712
弯曲面任何方向开裂≤3.175mm平均值≥27
最低值≥23
HAZ内HRC≤37
X-95≥655≥724
G-105≥724≥793
S-135≥392
  778
  793
≥421
1000

API对管体规定E-75 ≥517
≤724
≥689
/平均值≥54
最低值≥47
/
X-95≥655
≤862
≥724
G-105≥724
≤931
≥793
S-135≥931
≤1138
≥1000


石油焊接钻杆系列参数一览表 (符合API标准)

管体外径 OD管体壁厚 Wall thickness管体加厚形式钢级钻杆长度(m)接头外径螺纹类型外螺纹接头内径近似质量
inchmminchmmGrade范围1范围2范围3kg/m
 2-3/860.32 0.280 7.11 EUX、G6.40-7.629.14-10.3612.19-14.6385.7 NC2644.5 15.8 
2-7/873.02 0.3629.19 EUX、G6.40-7.629.14-10.3612.19-14.63104.8 NC3150.8 24.6 
2-7/873.02 0.3629.19 EUS6.40-7.629.14-10.3612.19-14.63111.1 NC3141.3 26.7 
3-1/288.90 0.368 9.35 EUG6.40-7.629.14-10.3612.19-14.63127.0 NC3861.9 32.6 
3-1/288.90 0.368 9.35 EUS6.40-7.629.14-10.3612.19-14.63127.0 NC3854.0 33.1 
3-1/288.90 0.449 11.40 EUG6.40-7.629.14-10.3612.19-14.63127.0 NC3854.0 37.8 
3-1/288.90 0.449 11.40 EUS6.40-7.629.14-10.3612.19-14.63139.7 NC4057.2 39.0 
4101.60 0.330 8.38 IUG6.40-7.629.14-10.3612.19-14.63139.7 NC4061.9 35.2 
4101.60 0.330 8.38 IUS6.40-7.629.14-10.3612.19-14.63139.7 NC4050.8 35.8 
4101.60 0.330 8.38 EUX、G6.40-7.629.14-10.3612.19-14.63152.4 NC4682.6 35.9 
4101.60 0.330 8.38 EUS6.40-7.629.14-10.3612.19-14.63152.4 NC4676.2 36.4 
4-1/2114.30 0.337 8.56 EUX、G6.40-7.629.14-10.3612.19-14.63168.3 NC5095.3 41.8 
4-1/2114.30 0.337 8.56 EUS6.40-7.629.14-10.3612.19-14.63168.3 NC5088.9 42.4 
4-1/2114.30 0.430 10.92 EUX、G6.40-7.629.14-10.3612.19-14.63168.3 NC5088.9 50.1 
4-1/2114.30 0.430 10.92 EUS6.40-7.629.14-10.3612.19-14.63168.3 NC5076.2 51.1 
4-1/2114.30 0.337 8.56 IEUX、G6.40-7.629.14-10.3612.19-14.63158.8 NC4676.2 41.3 
4-1/2114.30 0.337 8.56 IEUS6.40-7.629.14-10.3612.19-14.63158.8 NC4669.9 41.8 
4-1/2114.30 0.430 10.92 IEUG6.40-7.629.14-10.3612.19-14.63158.8 NC4663.5 50.6 
4-1/2114.30 0.430 10.92 IEUS6.40-7.629.14-10.3612.19-14.63158.8 NC4657.2 51.0 
5127.00 0.3629.19 IEUG6.40-7.629.14-10.3612.19-14.63168.3 NC5082.6 49.1 
5127.00 0.362 9.19 IEUS6.40-7.629.14-10.3612.19-14.63168.3 NC5069.9 50.0 
5127.00 0.362 9.19 IEUX、G6.40-7.629.14-10.3612.19-14.63177.8 5 1/2FH95.3 50.1 
5127.00 0.362 9.19 IEUS6.40-7.629.14-10.3612.19-14.63184.2 5 1/2FH88.9 51.2 
5127.00 0.500 12.70 IEUG6.40-7.629.14-10.3612.19-14.63168.3 NC5069.9 62.7 
5127.00 0.500 12.70 IEUG6.40-7.629.14-10.3612.19-14.63184.2 5 1/2FH88.9 64.6 
5127.00 0.500 12.70 IEUS6.40-7.629.14-10.3612.19-14.63184.2 5 1/2FH82.6 65.2 
5-1/2139.70 0.362 9.19 IEUG6.40-7.629.14-10.3612.19-14.63184.2 5 1/2FH88.9 56.0 
5-1/2139.70 0.362 9.19 IEUS6.40-7.629.14-10.3612.19-14.63190.5 5 1/2FH76.2 58.5 
5-1/2139.70 0.415 10.54 IEUX、G6.40-7.629.14-10.3612.19-14.63184.2 5 1/2FH88.9 61.5 
5-1/2139.70 0.415 10.54 IEUS6.40-7.629.14-10.3612.19-14.63190.5 5 1/2FH76.2 64.0 
注:1.IU、EU、IEU为内加厚、外加厚和内外加厚 2.螺纹有右旋、左旋并镀铜或磷化 3.本表为常用钢级的钻杆,低钢级钻杆同样可以供应。


钻杆生产优势:

采用当前国内外先进的摩擦焊焊接形变热处理技术,热影响区小、焊接后应力过渡区更容易消除。严格执行焊接形变热处理规范的工艺评定、优化参数、确保焊接质量更好、更加稳定可靠。


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