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CN104487652A 用于小井眼井的设备和方法 有权 转让

用于小井眼井的设备和方法
摘要：
本发明提供了一种用于提供存在于深井中的小井眼井中的衬管回接连接或衬管悬架形式的管连接的设备和方法。当安装套管节段时，提供了具有与相邻套管节段的表面不同的异形表面(304)的第一套管节段(300)。衬管行进到第一套管节段(300)内，并且一部分的局部径向地膨胀，从而在异形表面(304)处抵靠第一套管节段的内表面变形，并形成密封的接头。提供了异形表面的各种布置。衬管也可以具有异形表面。通过使套管节段适合于直接接收衬管，实现小井眼井结构。
摘要（英）：

An apparatus and method for providing a tubular connection in the form of a liner tieback connection or a liner hanger in a slim hole well as found in deep wells. When installing the casing sections, a first casing section (300) having a profiled surface (304) distinct from a surface of an adjacent casing section is provided. A liner is run into the first casing section (300) and a part of a portion is radially expanded to morph against the inner surface of the first casing section at the profiled surface (304) and form a sealed joint. Various arrangements of profiled surfaces are provided. The liner may also have a profiled surface. By adapting the casing section to receive the liner directly, a slim hole well construction is achieved.

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