发明名称 An anchoring device to secure a packer assembly
摘要 An anchoring device 400 to secure a packer assembly within a casing, including a frangible ring 410 having a plurality of grips on an outer circumference, wherein a first end of the frangible ring includes a plurality of circumferentially spaced slots, and an expansion ring 420 having a plurality of castellations configured to engage the slots of the first end of the frangible ring is disclosed. A method to secure a packer assembly in a casing, including engaging a plurality of arcuate segments of a segmented ring 430 with a plurality of slots in a first end of a frangible ring, engaging a plurality of castellations of an expansion ring with the plurality of slots on a second end of the frangible ring, and moving the expansion ring in an axial direction towards the frangible ring and splitting the frangible ring into a plurality of slip segments, thereby radially extending the plurality of slip segments and segmented ring into the casing is also disclosed.
申请公布号 GB2448983(A) 申请公布日期 2008.11.05
申请号 GB20080007894 申请日期 2008.04.30
申请人 SMITH INTERNATIONAL, INC. 发明人 WILLIAM M ROBERTS;LAP T TRAN
分类号 E21B33/129 主分类号 E21B33/129
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