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  1. No Access

    Chapter and Conference Paper

    Application of Reaming and Expandable Pipe in the Ultra-Deep Well LH1

    In the fourth spud of ultra-deep risk exploration well LH1 in Huabai Oilfield, complex conditions of lost circulation in upper formation, high pressure water and wellbore collapse in lower formation are drille...

    Zi-wei You, Yu-qi Zhao, Xue-fei Li… in Proceedings of the International Field Exp… (2024)

  2. No Access

    Chapter and Conference Paper

    Challenges and Solutions of Drilling of Geothermal Well RDR5-1

    Well RDR5-1 is the first geothermal well drilled by PetroChina in the **ong'an New District. Its target of buried dolomite formation is well developed with fractures, leading to serious lost circulation. Sever...

    Yan-fang Gao, Zi-wei You, Bo **e, Yu-qi Zhao… in Proceedings of the International Field Exp… (2022)

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    Article

    Recognition of virtual loops on 3D CAD models based on the B-rep model

    Loops are critical elements in boundary representation (B-rep) models because they link all edges corresponding to a face. Loops can be used in feature recognition for identifying depressions or protrusions. I...

    Jiing-Yih Lai, Ming-Hsuan Wang, Zi-Wei You, Yu-Kai Chiu… in Engineering with Computers (2016)