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  1. 541

    Risk Assessment of Annular Pressure Caused by Tubing Leakage in Offshore Gas Wells with High CO2 by Ninghui Dou, Zhiqiang Hu, Zhiyuan Wang, Hanpin He, Shunhui Yang

    Published 2023-01-01
    “…The annular pressure caused by tubing leakage is characterized by high pressure and rapid rise rate, resulting in wellhead jacking, gas leakage, and wellbore structure corrosion, which has become the main cause of wellbore integrity failure in offshore gas wells. …”
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  2. 542
  3. 543

    Application of MIKE FLOOD Model in Drainage Schemes for High-density Built-up Areas: Taking the Southern Region of Fuhai River in Shenzhen as an Example by YAN Hengheng, LU Qiaohui

    Published 2024-12-01
    “…Under the tide-dominated scenario, overtopping occurs in three tributaries, which is caused by the jacking role of the sea. ②The working condition of the dispersed drainage scheme can reduce the waterlogging area by 37.78% and 74.6% under the flood-dominated and tide-dominated scenarios respectively, and shorten the flood-affected duration by 24.53% and 51.61% respectively. …”
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    Unstuck Technology for EPB/TBM Dual Mode Shield Machine Stuck in Rock Stratum by DUAN Yueqiang

    Published 2025-01-01
    “…Successful escaping can be achieved through procedures such as determining the jamming position of the shield tunneling machine, breaking through the rock mass of the cutting ring, welding the jacking and bracing fixtures, conducting a trial propulsion of the shield tunneling machine, cutting the first part of the shield body and breaking through the rock mass, cutting the second part of the shield body and breaking through the rock mass, in-situ welding of the cut shield body, and resuming the tunneling of the shield tunneling machine…”
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  7. 547