g, Jilin, Liaohe, Dagang oilfield. According to incomplete statistics, applied 6621 wells, direct economic benefits generated 5980000000 yuan, in the complex formation drilling effect is more remarkable, enhance the core competitiveness of China's drilling fluid and reservoir protection technology in domestic and foreign markets, to ensure safe and high quality drilling, increase oil and gas production of single well and to reduce the cost of "tons of oil", protect the oil and gas resource is of great significance. Research and development of high-end equipment and fine chemical products formed clusters, great social benefit.