1. Silicon stability agent has strong ability of anti- temperature. The drilling mud still have very good fluidity when the temperature is higher than 150℃.

2. Excellent mud viscosity reduction rate, rheological adjustment and the high speed of progress.

3. Fastening wall against collapse well, reducing the abnormal situation occurrence as far as possible.

4．The amount used few, the effect well, the maintaining time long, saving other material, synthetically economic efficiency is better.