Yaerxia oilfield is located in the anticline of west Yaerxia Cretaceous reservoir with high formation dip, much interlayer, strong abrasiveness and poor drillability. Deviation often occurs in vertical drilling and tool face stability is poor with serious back pressure in directional drilling, the selection of PDC bit types is difficult. Due to the poor compatibility with the formations, complicated downhole problems would be caused, which seriously restrict the drilling speed-increasing, the drilling fluid performance should be suitable. Aiming at the difficulties of restricting drilling speed-increasing, through the analysis on the field test results, this paper illustrates the drilling speed-increasing measures in Ya K block, including deviation control with straight well drilling, hydraulic oscillator test, PDC bit personalized test, bottom hole assembly selection and optimization of drilling fluid performance, etc. By the field tests, successful experience of the drilling speed-increasing has been accumulated for Ya K block.