SpecificationODIDTypeTool joint Tube ODDF Bevel of
box and pinTube Size
of upsetWeigh
t/pc
(kg)mminmminmminCenter
D mmSize of upset B
mmFigure1. Integral heavy weight drill pipe type ⅠZH-JZ55
-5 1/2FH-Ⅰ1405 1/292.13 5/85 1/2
FH177.87170.7152.4144.5730ZH-JZ50
-NC50-Ⅰ127.0576.23Nc50165.1
(4 1/2 FH)6 1/2154.0139.7130.2700ZH-JZ45
-NC46-Ⅰ114.34 1/271.42 13/16Nc46158.8
(4 IF)6 1/4145.3127.0117.5585ZH-JZ35
-NC38-Ⅰ88.93 1/252.392 1/16Nc38120.74 3/4116.3101.692.1370Figure2. Integral heavy weight drill pipe type ⅡZH-JZ50-NC50-II127.0576.23Nc50
(4 1/2
FH)165.16 1/2154.0139.7130.2945ZH-JZ45-NC46-II114.34 1/271.42 13/16Nc46
(4IF)158.86 1/4145.3127.0117.5790
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