Ms. Mei Yang ( 杨 梅 ): Is a reservoir engineer at Weatherford International. She has approximately five years of oil industry experience, along with seven years of mathematics and computer science teaching at GuizhouUniversity in China. In her present role, she performs petroleum consultant on client projects, specifically independent and major oil and gas companies. Her analysis includes rock mechanics, reservoir simulation, production stimulation, project design for pre-, post- and re-frac fracture programs, and selection of proppants. Her experience includes well completions, well performance analysis and economic analysis.