Dr. Zongyu Zhai

• Experience Summary

01/02/2006 – present Senior Geomechanical Engineer, Advantek International • Developed a deviated wellbore breakdown pressure calculation software and applied it to Agbami and Qatar gas projects. • Developed a well trajectory design software based on breakdown pressure • Added a restart file and pressure dependent leakoff model to @Frac software (3d finite element hydraulic fracturing software) 09/01 - 8/06 Research Assistant, Petroleum Engineering, The University of Texas at Austin • Modeled the propagation of “fractures” in unconsolidated sands and developed coupled 2-D geo-mechanics and reservoir simulation software in cylindrical coordinate to simulate stress, permeability, porosity and pressure change . • Modeled and simulated fracture reorientation due to fluid injection and production with the poroelastic theory • Developed a coupled 3-D geomechanical and reservoir simulation software in Cartesian coordinate to solve subsidence and well stability problems 08/99 - 05/01 Research Assistant, University of Petroleum (Beijing) • Developed production optimization software for hydraulically fractured reservoirs 03/98 - 08/98 Research Assistant, University of Petroleum (East China) • Conducted experiments to optimize concentrations of polymers, alkali, and surfactants in the injected fluid to enhance oil recovery for Zhuangxi oil field 06/97 - 09/97 Petroleum Engineer Intern, Shengli Oilfield, Shandong Province, P.R. China • Supervised day-to-day production activities including well-head operations and routine operations of central production facility • Coordinated reservoir studies and day-to-day operational requirements 06/96 - 08/96 Petroleum Engineer Intern, Shengli Oilfield, Shandong Province, P.R. China • Observed and learned about various geological processes through field observations and training 05/95 - 08/95 Drilling Engineer Intern, University of Petroleum (East China) • Conducted high pressure water jet drilling experiment

• Education

Master of Science, Petroleum Engineering, August 2001 University of Petroleum (Beijing)

PhD, Petroleum Engineering, May 2006 The University of Texas at Austin Supervisor: Mukul M. Sharma

Bachelor of Science, Petroleum Engineering, August 1998 University of Petroleum (East China)

• Accomplishments

• Honored as Outstanding Graduate, University of Petroleum (Beijing, 2001)

• Prize for Excellent Bachelor’s thesis, University of Petroleum (East China, 1998)

• Six consecutive Scholarships for top 20% students, University of Petroleum (East China, 1994-1997)

• Three consecutive honors for being an Excellent Student, University of Petroleum (East China, 1994-1997)

• First in the academic year 1998-99 in University of Petroleum (Beijing)

• President of Science and Technology Association of Petroleum University (Beijing, 1998-2000)

• Won second prize in 3000m athletic event, University of Petroleum (East China, 1997)

• Won third prize in intra-university chess championship, University of Petroleum (East China, 1996)

• Represented University of Petroleum in inter-university athletic events (1995)

• Member of Basketball Team of Department at Petroleum University (East China, 1995)

• Publications

• Zhai, Z., Sharma, M.M., "The Mechanics of Hydraulic Fractures in Unconsolidated Sands," CICP 2005-131, Canadian International Petroleum Conference, June 2005

• Zhai, Z., Sharma, M.M., "A New Approach to Modeling Hydraulic Fractures in Unconsolidated Sands," SPE 96246, Dallas, Texas, USA, October 2005

• Submitted an abstract for 2007 SPE Annual Technical Conference "Estimating Fracture reorientation due to long term Injection/Production" SPE 106387, , USA, March 2007