“潜没式反循环工程钻机将泥浆泵设置在钻杆上端,免除了增加钻杆时的排空处理,缩短了时间,降低了负荷。”近日,在鸡泽县国峰重工的组装车间,总经理李洪民向东北客户这样推介该公司的专利产品。凭借“潜没式反循环钻机”这一高新科技产品,国峰重工的钻机漂洋过海,销到了乍得、尼日利亚、坦桑尼亚等国家。 “Submerged reverse circulation drilling rig will mud pump set in the upper end of the drill pipe, eliminating the increase of drill pipe emptying treatment, shorten the time and reduce the load. ” Recently, in Jize County, the peak of the assembly shop , General manager Li Hongmin to northeast customers to promote the company’s patented product. With “submersible reverse circulation drilling machine” high-tech products, Guofeng Heavy drills across the ocean, sold to Chad, Nigeria, Tanzania and other countries.