Baoji Changyou Petroleum Equipment Co., Ltd. Was founded in 2010, which is specialized in design, manufacture, surface test and sales of downhole tools for oil & gas field. Except that, we also offer the R&D service to the clients who have special requirements. Our company covers an area of 15, 000 square meters, has about 90 experienced employees and including more than 70 professional and technical personnel. With more than 20 years working experience in designing and manufacturing downhole tools, our company has rich design experience, site experience, strong technological innovation and production capabilities. Changyou also possesses a number of patents with Independent intellectual property, which provide a powerful technical support for our clients

Our products range: • RTTS Packer• RTTS Safety Joint• FUL-FLO Hydraulic Circulating Valve• Internal Pressure-Operated (IPO) Circulating Valve• Repetitious Circulating Valve• RTTS Circulating Valve• Rupture Disk (RD) Safety Circulating Valve• Tester Valve• Select Tester Valve• Tubing String Testing (TST) Valve• Rupture Disk (RD) Tubing String Testing (TST) Valve• Round Mandrel Slip joint• Shock Absorber• Hollow Plug Impact Reversing Sub• HYDROSPRING Tester• VR Safety Joint• Champ Packer• Bridge Plugs• PRESSURE OPERATED Tester Valve(LPR-N)• OMNI Valve• Pressure gauge carrier• MFEIn order to diversify our existing market, we are interested in supplying our high quality products to you on favorable terms and conditions. Upon receipt of your inquiries.