Abstract:According to the large formation dip, many faults, complex lithology and high nature deflecting rate in Hailar area, high-risk areas and formations of deviation were drawn to confirm easily inclined formation. By optimizing anti-deviation BHA and the corresponding drilling parameters and combining with early warning system and vertical drilling system, a set of anti-deviation and fast technology was formed in easily inclined formation of Hailar, which can significantly improve the drilling speed and shorten drilling time.