After evaluating of Pyrolase(TM) 160 in the lab, the engineers of fracturing center in the Institute of Oil and Gas Technics Researching in Changqing oil field took Pyrolase(TM) 160 on trail in eight wells in Dongzhi Zone, White Leopard Zone, and White Horse Zone. All the trails have been successfully performed. After fracturing, the yields of these four zones were 20.6, 25.5, 16.5, and 27.9 tons respectively. Comparing to other fractured wells, daily yield increases of the four zones were 2.1 tons (11.4%), 4.2 tons(19.7%)、0.7 tons(4.4%)、10.6 tons(61.3%) respectively. The Institute of Oil and Gas Technics Researching will use Pyrolase(TM) 160 in the fracturing of gas wells in the beginning of 2007. Both Changqing oil field and BITeomics, Inc. are satisfied with the cooperation and have managed to the opinion of expanding the application of Pyrolase(TM) 160.