1. api drill pipe
1.OD.: 21.3mm-609mm WT.: 2mm-22mm
2.Material:H-40,J-55,K-55,N-80,C-75,L-80,C-90,C-95,P-110,Q-125
Standard | API 5CT,SY/T6194-96 |
Size | OD:21.3-609MM WT:2-22MM Length:6-12m |
Material | H-40,J-55,K-55,N-80,C-75,L-80,C-90,C-95,P-110,Q-125 |
Thread type | LTC (long round thread casing connection) STC (short round thread casing connection) BTC(buttress thread) |
Length | R-1:4.88~7.62m R-2:7.62~10.36m R-3:more than 10.36m |
Application | Used in oil well drilling.It is mainly used for drilling process and after completion of borehole wall support, to ensure that the drilling process and the whole Wells after completion are normal running . |
QB series Rod parameter-geological steel pipe-entire length thermal treatment, NC lathe with former cutters | |||||
Spec. | Unit | BQB | NQB | HQB | PQB |
OD/ID | mm | 55.6/46 | 71/60 | 89/77.8 | 114.3/101.6 |
Thickness | mm | 4.8 | 5.5 | 5.6 | 6.35 |
Length | m | 1.5 or 3 | 1.5 or 3 | 1.5 or 3 | 1.5 or 3 |
Weight | kg/m | 6.01 | 8.8 | 11.51 | 17.3 |
thread length | mm | 44.45 | 44.45 | 44.45 | 63.5 |
thread pitch | thread/inch | 3 | 3 | 3 | 2.5 |
box thread tooth height | mm | 0.76 | 0.76 | 0.76 | 1.17 |
pin thread tooth height | mm | 0.88 | 0.88 | 0.88 | 1.27 |
thread tooth angle | . | 29 | 29 | 29 | 29 |
tensile resistance(A series) | kn | 400 | 530 | 510 | 565 |
tensile resistance(B series) | kn | 450 | 615 | 625 | 660 |
bore depth | m | 1200 | 1000 | 900 | 800 |
RQ series Rod parameter-geological steel pipe-entire length thermal treatment, NC lathe with former cutters | |||||
Spec. | Unit | BRQ | NRQ | HRQ | PRQ |
OD/ID | mm | 55.6/46 | 69.9/60.3 | 88.9/77.8 | 114.3/101.6 |
Length | m | 1.5 or 3 | 1.5 or 3 | 1.5 or 3 | 1.5 or 3 |
Weight | kg/m | 6.01 | 8.8 | 11.51 | 17.3 |
thread length | mm | 42 | 42 | 41.91 | 63.5 |
thread pitch | thread/inch | 3 | 3 | 3 | 2.5 |
box thread tooth height | mm | 0.76 | 0.76 | 0.76 | 1.17 |
pin thread tooth height | mm | 0.88 | 0.88 | 0.88 | 1.27 |
thread tooth negative angle | . | 5 | 5 | 5 | 5 |
tensile resistance(A) | kn | 450 | 525 | 545 | 565 |
tensile resistance(B) | kn | 530 | 625.5 | 602 | 660 |
bore depth | m |
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