Digital Selection Technology and Software Development of PDC Bit
A large amount of engineering data related to formation and bit is generated in the course of drill-ing.Using big data analysis technology to optimize bit can be used to guide the selection,design and use of bit,thus shifting the selection of bit from relying on manufacturers and experience to relying on scientific structural fea-ture analysis and big data optimization.In the paper,by means of conducting digital method study on the structur-al features of PDC bit,a statistical data analysis based bit structure feature recommendation and selection technolo-gy was established,forming a basic step and analysis strategy centered on data extraction and efficiency analysis,bit structure feature digitization and bit structure feature reconstruction selection.Then,a set of PDC bit digital selection technology and supporting software were established.Compared with the conventional comparative analy-sis selection method of bit footage and ROP,this technology focuses on the influence of structural feature on the operation efficiency of bit,reflecting the guiding role of real drilling engineering data in bit selection.The technol-ogy and software were used to select PDC bit for a block in the Junggar Basin,and were applied in real drilling.The application results show that the selected bit has obviously improved the ROP and footage in drilling,thus shortening the drilling cycle.The research technology and results are favorable for improving the drilling service technology level,and lay a foundation for the digital and intelligent development of oil and gas fields.
PDC bitbit selectionstructural featuredigitalROP improvingsoftware development
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