Floating displacement cementing technology and flush joint casing 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。
This paper presents flush joint casing classification, structural feature, technical difficulty in design, performance and evaluation, main advantages and application.
文中介绍了无接箍式套管的分类、结构特征、设计的技术难点、性能和评价方法、主要优点和应用情况。
Ease of Application - Excessively wide tolerances tend to break capillary force; and, as a result the alloy will either fail to flow throughout the joint or may flush out of the joint.
应用简易-公差过大可能会破坏毛细作用，结果是合金无法流遍连接部位，或者从连接部位冲刷出去。
Characteristics of cross-joint flush valve: they are time-lapse, self-closing, beeline of water route.
四通冲洗阀特点：延时自闭、水流路径成“一”字型， 适应的水压比较多， 有手柄式、按钮式、脚踏式。
Characteristics of cross-joint flush valve: they are time-lapse, self-closing, beeline of water route.
四通冲洗阀特点：延时自闭、水流路径成“一”字型， 适应的水压比较多， 有手柄式、按钮式、脚踏式。
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