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Analysis Report of Crude Oil Recovery Enhancement Using Apollo GreenZyme®

March, 2002 Guangxi Tiandong Petrochemical Complex, Tiandong Oilfield, Oil well Lun 2-25 Guangxi, China. (Production data and results updated to July 3, 2002) Effectiveness and application analysis using Apollo Greenzyme® Apollo Greenzyme® is a new type of highly effective oil well unclogging agent developed by Apollo Separation Technologies Inc in United States. It is a protein based non-living catalyst, with a very high capability to release hydrocarbon compounds (oil) from solid surfaces. In recent years, Greenzyme® has been used quite successfully in oilfields in America, Venezuela, Indonesia and other nations with good results. Last July in a single well stimulation work done for Shengli Oilfield, Yung 8-52 well, Greenzyme® has demonstrated a very satisfactory result. During the month of December 2001, our company in co-operation with Apollo Separation Technologies Inc, decided to use Greenzyme® on our Lun 2-25 oil well. The following data reports the application results of using Greenzyme® on this oil well. Conclusion 1) After application of Apollo Greenzyme®, total daily fluid production   showed significant increase, from last December’s 6.0 t/d to this March’s 13.6 t/d. 2) There is little change in water cut, this is because the oil viscosity in this well is low, only 19.2 mPa.s, this value reduces the other characteristics of Apollo Greenzyme®, namely reduction of oil viscosity. After application of Apollo Greenzyme® on this well, oil viscosity drops to 16.9 mPa.s, this is why water content percentage showed no difference as before. But we also observed the fact when total daily fluid output has increased two-fold, the water content can still maintain below 60% level, this clearly demonstrates the effectiveness of Apollo Greenzyme®, not only to maintain a higher daily oil production, and at the same time to control water cut percentage. 3) After Apollo Greenzyme® application, the dynamic level in this well shows a significant rise inside the tubing side, it supplies plenty of fluid production. This fact clearly proves that, after Greenzyme® application, the geological formation near the bottom hole and vicinity areas showed significant improvement in fluid flow mobility, allow the bottom hole formation of this well to greatly supply fluid production. 4) This is the first time we achieve complete success, this will lay a good foundation for further future co- operations. This success will lead to a new method for the development of mid and latter stage oilfields.