Hilong Slip-Protected Drill Pipe
Product IntroductionIn order to reduce tripping time in the drilling process to improve drilling efficiency, "one elevator one slip" is the general tripping mode. The pipe body within the range of 600mm-900mm under the box end is always injured by using slip and cause "washouts" in pipe body. The slip transverse and longitudinal loads beared by drill pipe are higher and higher along with drilling depth increasing, complicated geological conditions and offshore drilling. Higher slip crushing capability of the pipe body is required. To solve these problems, Hilong designed and manufactured slip-proof drill pipe, the long, thick-walled upset section is designed on the box end.
Product Advantage·Improving drill pipe slip crushing capability. Take 5" 19.50lb/ft G105 for example, the drill pipe crushing capability increased by 140%;
·Fatigue test proved that, because of slip injury, the fatigue life of ordinary drill pipe decreased by 60%. The fatigue life of slip-proof drill pipe (slip crush protest drill pipe) increased more than 5 times in the same slip injury condition.
Product Specification(a)Size Range: 4", 4-1/2", 5", 5 1/2", 5 7/8", 6 5/8", 7 5/8"；
(b)Steel Grade: G105, S135, HLDT-SH®Z140, HLDT-SH®V150；
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