Our Egyptian-Chinese petroleum company, EPHH, has achieved a significant milestone by manufacturing the first onshore drilling rig with Egyptian hands at our factory in Ain Sokhna, under the guidance of the Egyptian state and the instructions of Engineer Tarek El Molla, Minister of Petroleum and Mineral Resources.
[pdf] A rotary drilling rig works by rotating a drill string, which applies downward pressure to a drill bit that grinds the earth. Drilling fluid or air is pumped down the drill string to cool the bit, carry cuttings to the surface, and stabilize the borehole.
[pdf] A rotary table is a mechanical device on a drilling rig that provides clockwise (as viewed from above) rotational force to the to facilitate the process of drilling a . Rotary speed is the number of times the rotary table makes one full revolution in one minute (rpm).
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