In order to clarify the key factors affecting the drilling speed of each layer,the main means to improve the drilling speed are clarified.Taking drilling parameters as the re-search object,through the establishment of the basic model of drilling parameters with 6 fac-tors and 3 levels,the drilling parameters of Shahejie formation in Suizhong 36-2 oilfield are analyzed,and the influence degree of each drilling parameter on the rate of penetration is pointed out.Combined with the ANN algorithm,the expected rate of penetration of each test scheme is predicted.The results show that,(1)The main influencing factors of penetration rate are clarified by using the OED model.(2)By establishing the OED-ANN model,the optimal drilling parameters were established,and the rate of penetration was predicted,and the opti-mized rate of penetration was increased by 15.70%,12.25%,and 2.66%,respectively.It is concluded that the analysis and evaluation method makes the optimization of drilling param-eters more scientific,the data analysis results more intuitive,can effectively guide the drilling speed,a good example for the optimization of drilling parameters of other wells in the area.
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