Professor, Research Institute of Enhancing Oil Recovery, China University of Petroleum (Beijing), Since June 2015. Visiting professor, the University of Calgary, 2015 - 2016. Associate Professor, Research Institute of Enhancing Oil Recovery, China University of Petroleum (Beijing), December 2011 - 2015. Associate Professor, College of Petroleum Engineering, Northeast Petroleum University, 2009 - 2011. Project inspector in Division of Engineering and Materials, National Natural Science Foundation of China, 2009. Postdoctoral Work at Research Institute of Exploration and Development, CNPC, 2007 - 2011. Lecturer, College of Petroleum Engineering, Northeast Petroleum University, 2005 - 2009.

Thermal recovery theories and technologies: Cyclic Steam Stimulation (CSS), steam and gas co-injection, Steam-Assisted Gravity Drainage(SAGD)/Steam-Assisted Gas Push(SAGP), and air injection. Injection conformance improvement: foam, gel, foamed gel, modified oily sludge, et al. IOR: reservoir development plan optimization, water flooding, polymer flooding, et al. CO2 injection for low permeability reservoir and heavy oil reservoir. Simulation and regulation of fluid and pressure in place for oil or gas reservoir.