The main results are technology innovation in three aspects:

⑴The independent research and development of water-based drilling fluid film theory and film chemical solid wall technology, device and evaluation method of the successful development of water-based drilling fluid organic silicate film forming materials and simulated downhole conditions of high temperature and high pressure mud shale membrane efficiency evaluation.

⑵The new method for evaluation of reservoir damage invention "double film" collaborative plugging the new reservoir protection technology and simulated downhole conditions, and the development of China's petroleum and natural gas industry standards - "damage of drilling fluid and completion fluid reservoir evaluation method (SY/T5306-2003)". The use of this technology well drilled, skin factor less than or clo