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    • 3. 发明授权
    • Multiple layer extrusion limiter
    • 多层挤出限制器
    • US08191625B2
    • 2012-06-05
    • US12914760
    • 2010-10-28
    • Jesse Cale PorterAdam K. NeerKevin Ray MankeWilliam E. Standridge
    • Jesse Cale PorterAdam K. NeerKevin Ray MankeWilliam E. Standridge
    • E21B33/12
    • E21B33/1208E21B33/1216E21B33/1277
    • A downhole tool has a mandrel with a sealing element disposed thereabout. The sealing element is movable from an unset position to a set position in which the sealing element engages the well. Extrusion limiters are positioned at the ends of the sealing element. The extrusion limiters have first and second layers and the first and second layers are different materials. The second layer may be made up of a plurality of discs. At least one of the discs may be a disc with an irregularly shaped outer peripheral edge and a generally circular inner peripheral edge. A plurality of the discs with the irregularly shaped outer edge may be stacked and may be stacked with a generally circular or ring-shaped segmented disc. The first and second layers are stacked and then molded into a final shape for placement at the ends of the sealing element.
    • 井下工具具有设置在其周围的密封元件的心轴。 密封元件可以从未设定位置移动到密封元件接合井的设定位置。 挤出限制器位于密封元件的端部。 挤出限制器具有第一和第二层,并且第一和第二层是不同的材料。 第二层可以由多个盘组成。 至少一个盘可以是具有不规则形状的外周边缘和大致圆形的内周边缘的盘。 具有不规则形状的外边缘的多个盘可以被堆叠并且可以与大致圆形或环形的分段盘堆叠。 第一层和第二层被堆叠,然后模制成最终形状以放置在密封元件的端部。
    • 4. 发明申请
    • MULTIPLE LAYER EXTRUSION LIMITER
    • 多层挤出限制
    • US20110265986A1
    • 2011-11-03
    • US12914760
    • 2010-10-28
    • Jesse Cale PorterAdam K. NeerKevin Ray MankeWilliam E. Standridge
    • Jesse Cale PorterAdam K. NeerKevin Ray MankeWilliam E. Standridge
    • E21B33/12
    • E21B33/1208E21B33/1216E21B33/1277
    • A downhole tool has a mandrel with a sealing element disposed thereabout. The sealing element is movable from an unset position to a set position in which the sealing element engages the well. Extrusion limiters are positioned at the ends of the sealing element. The extrusion limiters have first and second layers and the first and second layers are different materials. The second layer may be made up of a plurality of discs. At least one of the discs may be a disc with an irregularly shaped outer peripheral edge and a generally circular inner peripheral edge. A plurality of the discs with the irregularly shaped outer edge may be stacked and may be stacked with a generally circular or ring-shaped segmented disc. The first and second layers are stacked and then molded into a final shape for placement at the ends of the sealing element.
    • 井下工具具有设置在其周围的密封元件的心轴。 密封元件可以从未设定位置移动到密封元件接合井的设定位置。 挤出限制器位于密封元件的端部。 挤出限制器具有第一和第二层,并且第一和第二层是不同的材料。 第二层可以由多个盘组成。 至少一个盘可以是具有不规则形状的外周边缘和大致圆形的内周边缘的盘。 具有不规则形状的外边缘的多个盘可以被堆叠并且可以与大致圆形或环形的分段盘堆叠。 第一层和第二层被堆叠,然后模制成最终形状以放置在密封元件的端部。
    • 5. 发明授权
    • Single piece packer extrusion limiter ring
    • 单件封隔器挤出限制环
    • US08403036B2
    • 2013-03-26
    • US12881985
    • 2010-09-14
    • Adam K. NeerEmil HavelkaLloyd Crockford
    • Adam K. NeerEmil HavelkaLloyd Crockford
    • E21B33/128E21B33/129
    • E21B33/128E21B33/1216
    • An apparatus for use in a wellbore is provided. The apparatus comprises a mandrel, a sealing element carried on the mandrel, the sealing element being radially expandable from a first run-in diameter to a second set diameter in response to application of axial force on the sealing element, and an extrusion limiting assembly carried on the mandrel and proximate the sealing element. The extrusion limiting assembly comprises a plurality of separate segments and a first circumferential band that retains the plurality of segments in a ring shape and substantially covers an outer circumferential surface of the plurality of segments while in a run-in condition of the apparatus.
    • 提供了一种用于井眼的装置。 所述设备包括心轴,承载在所述心轴上的密封元件,所述密封元件可响应于在所述密封元件上施加轴向力而从第一延伸直径径向扩展到第二设定直径,以及承载的挤出限制组件 在心轴上并且靠近密封元件。 挤出限制组件包括多个分开的段和第一周向带,其将多个段保持为环形,并且在设备的进入状态下基本上覆盖多个段的外周表面。