drill pipe

Product Description

The drilling pipe is a major part in connecting the drilling collar/drilling bit with the ground rotary system, the lifting system and the circulatory system, through which the rotary table drives the drilling bit to rotate, the drilling bit is driven up and down, the mud is sent to the bottom of the well to form the circulation. In this way, the drilling bit breaks the rock formation and keeps drilling on. Made in accordance with the “PSECIFICATION FOR DRILL PIPE ”API SPEC 5D Steel grade: E**5、X**5、G***5、S***5 Outside diameter: 2 3/8” 2 7/8’ 3 1/2’ 4” 4 1/2” 5” 5 1/2” Drilling Pipe Joint The drilling pipe joint is butt welded to the drilling pipe body for the petroleum and natural gas drilling operation. Our company makes a variety of the drilling pipe joints. We also pfovide our customers with rough blanks, polished blanks and finished products of all kinds of drilling pipes. The joints are made of quality alloy steel and specially heat treated, featuring high strength, good tenacity and long life. The thread surface is copper plated and phosphated, providing excellent smoothness. And the mechanical property meets the reuirements of SY/T***0 and API Spec 7.