公开(公告)号：US20160376869A1

公开(公告)日：2016-12-29

申请号：US15191297

申请日：2016-06-23

申请人： Weatherford Technology Holdings, LLC

发明人： James A. Rochen ,  Nauman H. Mhaskar ,  John R. Setterberg, Jr. ,  Matthew A. Crump

IPC分类号： E21B33/12 ,  E21B33/134 ,  E21B43/116 ,  E21B43/14 ,  E21B23/06 ,  E21B29/02 ,  E21B33/128 ,  E21B43/26

CPC分类号： E21B33/1212 ,  E21B23/06 ,  E21B29/02 ,  E21B33/128 ,  E21B33/129 ,  E21B33/134 ,  E21B34/063 ,  E21B43/116 ,  E21B43/14 ,  E21B43/261 ,  E21B2034/002

摘要： A downhole apparatus for use in a tubular include a mandrel, a first slip, a cone, and a seal element. The mandrel, which can be permanent or temporary, has a first end shoulder. The first slip is disposed on the mandrel adjacent the first end shoulder, and the cone is disposed on the mandrel adjacent the first slip. The cone is movable relative to the first end shoulder to engage the first slip toward the tubular. The seal element is disposed on the mandrel adjacent the cone. At least a portion of the seal element is composed of a dissolvable metallic material and is expandable outward from the mandrel. The expanded portion of the seal element forms a metal seal against the tubular and seals off fluid communication in the annular space between the seal element and the tubular.

摘要翻译： 用于管状的井下装置包括心轴，第一滑动件，锥体和密封元件。 心轴可以是永久的或临时的，具有第一端肩。 第一滑动件设置在与第一端部肩部相邻的心轴上，并且锥体设置在与第一滑动件相邻的心轴上。 锥体可相对于第一端部肩部移动以将第一滑动接合到管状物。 密封元件设置在与锥体相邻的心轴上。 密封元件的至少一部分由可溶解的金属材料组成并且可从心轴向外扩展。 密封元件的膨胀部分形成抵靠管状物的金属密封件，并且密封密封元件和管状物之间的环形空间中的流体连通。

公开(公告)号：US20150368994A1

公开(公告)日：2015-12-24

申请号：US14739962

申请日：2015-06-15

申请人： Weatherford Technology Holdings, LLC

发明人： Nauman H. Mhaskar ,  James A. Rochen ,  Jonathan A. Young

IPC分类号： E21B23/01

CPC分类号： E21B23/01 ,  E21B33/129

摘要： A downhole tool, such as a fracture plug used during a fracture operation, installs in a downhole tubular, such as casing. The tool has a mandrel with a sealing element disposed thereon between uphole and downhole ends. Slip assemblies on the mandrel can be moved to engage the downhole tubular. When the tool is used as a bridge plug, the uphole assembly supports the sealing element compressed, and the downhole assembly supports fluid pressure downhole of the tool. The slip assemblies have inserts composed of at least two materials that are different from one another and are geometrically separate from one another. In addition or as an alternative, the slip assemblies can be composed of at least two different materials that are geometrically separate from one another.

摘要翻译： 井下工具，例如在断裂操作期间使用的断裂塞，安装在诸如套管的井下管中。 该工具具有心轴，其上设置有在井下和井下端之间的密封元件。 心轴上的滑动组件可以移动以接合井下管。 当工具用作桥塞时，井上组件支撑被压缩的密封元件，并且井下组件支撑工具井下的流体压力。 滑动组件具有由彼此不同的至少两种材料组成的插入件，并且在几何上彼此分离。 另外或作为替代方案，滑动组件可以由至少两种在几何上彼此分离的不同材料组成。