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        Beijing YilongHengye Oil Engineering Technical  Co., Ltd. (Yilong) was established in 2005, and it is currently a high-tech enterprise headquartered which is located in Beijing. Currently, the company has a number of branches and subsidiaries at home and abroad.

        Over years of development, the Company primarily established 9 engineering and technical service sectors: drilling service sector,focusing on directional drilling and drilling construction; well completion & fracturing sector, focusing on open-hole multistage fracturing, Plug& Perf Multi-Stage Fracturing Technology, Coil Tubing Hydra Jetting Multi-Stage Fracturing Technology;perforation sector, focusing on Pumping perforating, TCP perforation tubing transmission and TTP through tubing perforating. Special work-over sector, focusing on snubbing operation and work-over. Oil production sector inclduing wellsite operation, equipments maintainence, oil field surface engineering and construction, oil gas recovery and heavy oil thermal production services.Oilfield chemical technology service sector, focusing on the production of oil recovery additives, drilling chemicals, profile control, acidizing, water plugging, and waste water treatment. Down-hole tools R&D and technical service sector focusing on packer, bridge plug and hydro-jet tools; High H2S gas well testing sector; and coiled tubing service and engineering technical consulting sector. In addition, we have a 42000m2 down-hole tools R&D base located in Zhongyuan Oil Field.
 
        In recent years, with well-deserved reputation, advanced technology and strong market competitiveness, the company is increased with its output value.In the future, we will develop into a globally renowned company providing oil-gas field technology service in order to satisfy our customers in current and emerging markets.