Floating displacement cementing technology and flushjointcasing technology are the first application in sidetracking well of Dagang Oilfield.
漂浮顶替固井工艺、无接箍套管工艺技术是首次应用在大港油田侧钻井上。
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This paper presents flushjointcasing classification, structural feature, technical difficulty in design, performance and evaluation, main advantages and application.