发明名称 |
Expandable open-hole anchor |
摘要 |
The present invention generally relates to an apparatus and method for expanding an anchoring device in a borehole. In one aspect, an anchoring device is provided. The anchoring device includes an expandable tubular. The anchoring device further includes a plurality of bands disposed on an outer surface of the expandable tubular. Each band is attached to the tubular at a first connection point and a second connection point, wherein each band is configured to bow radially outward as the expandable tubular shortens in length in response to the expansion of the tubular. In a further aspect, a method of attaching an anchoring device in a borehole is provided. |
申请公布号 |
AU2012249597(B2) |
申请公布日期 |
2016.03.17 |
申请号 |
AU20120249597 |
申请日期 |
2012.04.26 |
申请人 |
WEATHERFORD TECHNOLOGY HOLDINGS, LLC |
发明人 |
GANDIKOTA, VARADARAJU;KENDZIORA, LARRY A.;GIROUX, RICHARD L. |
分类号 |
E21B23/01;E21B43/10 |
主分类号 |
E21B23/01 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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