Iran's Research Institute of Petroleum Industry (RIPI) has broken a US monopoly on the production of deepwell cement plugs. Previously, only American companies manufactured the plugs used for solving deepwell problems like lost-circulation, sidetracking or directional drilling, according to RIPI. "The technology is of great significance in oil and gas drilling projects," said Talat Khalkhali, Director of the project to develop the technology at RIPI.
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