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1. 发明申请

WO2016209274A1 METHOD AND DEVICES FOR CENTRALIZING A CASING 审中-公开
标题翻译：用于中心化的方法和装置
公开(公告)号：WO2016209274A1
公开(公告)日：2016-12-29
申请号：PCT/US2015/038047
申请日：2015-06-26
申请人： PORTABLE COMPOSITE STRUCTURES, INC.
发明人： JEWETT, Scott, E.
IPC分类号： E21B19/24 , E21B17/10
CPC分类号： E21B17/1078
摘要： New apparatus and methods are provided for positioning and attaching centralizers to the inside sidewalls of a wellbore. One or more centralizers are maintained in the interior of a pipe that is transported downhole into a well for deployment. Preferrably, the pipe is also the wellbore 's casing and the centralizers are deposited in a top-down manner as the casing travels downhole. The centralizers of the present invention are constructed to have an at least partially circular structure with a central hole. The preferred centralizer has an expanding circular structure wherein the diameter of the centralizer is substantially uniform so as to form an annular construction. Once deployed, the annular centralizer expands to engage the wellbore sidewall with the central hole expanded for passage of the well casing.
摘要翻译：提供了新的装置和方法用于将定心和附接到井眼的内侧壁。一个或多个扶正器保持在管道的内部，该管道内部被输送到井下进行部署。优选地，管也是井筒的壳体，并且随着壳体在井下行进，自动向下沉积定心器。本发明的扶正器被构造成具有至少部分具有中心孔的圆形结构。优选的扶正器具有膨胀的圆形结构，其中扶正器的直径基本上是均匀的，以便形成环形结构。一旦展开，环形扶正器膨胀以与井眼侧壁接合，中心孔扩展以便井套管通过。

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