Beijing Yiheng Sunny Tech. Ltd. China (Mainland)

Beijing Yiheng Sunny Tech. Ltd. (YHS for short) was established in 2003. YHS is a petroleum engineering software enterprise dedicated to the professional research and development for the onshore drilling industry. YHS provides software products ranging from drilling to IT solutions. At present, our main software products include Navigator (Drilling Trajectory), TDFEA (Torque & Drag Finite Element Analysis), Hydraulics (Drilling Hydraulics), UB Hydraulics (Under balanced Hydraulics Analysis), and QuickDraw (Electronic drawing board). YHS service targets include national oil companies, international oil companies, drilling service companies, logging companies, and all those drilling research institutes and technology service companies engaged in the design and field services. YHS products have covered 80% of Chinese oil fields, and are well applied in Russia, Uzbekistan, Iran, Sudan, Egypt, and other countries. Accurate calculation, reliable manipulation, friendly interface, and easy operation are YHS main advantageous characteristics. YHS headquarters is located in Beijing, China, with representative offices in Calgary, Canada.