发明名称 |
MULTI-ZONE ACTUATION SYSTEM USING WELLBORE DARTS |
摘要 |
Disclosed is a sliding sleeve assembly that includes a sliding sleeve sub coupled to a work string extended within a wellbore, the sliding sleeve sub having one or more ports defined therein that enable fluid communication between an interior and an exterior of the work string, a sliding sleeve arranged within the sliding sleeve sub and movable between a closed position, where the sliding sleeve occludes the one or more ports, and an open position, where the sliding sleeve has moved to expose the one or more ports, a sleeve profile defined on an inner surface of the sliding sleeve, a wellbore dart having a body and a plurality of collet fingers extending longitudinally from the body, and a dart profile defined on an outer surface of the plurality of collet fingers, the dart profile being configured to selectively mate with the sleeve profile. |
申请公布号 |
US2016251923(A1) |
申请公布日期 |
2016.09.01 |
申请号 |
US201414423154 |
申请日期 |
2014.04.16 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
Keerthivasan Vijay Kumar;Foong Ryan Zhe Cong;Howell Matthew Todd;Walton Zachary William |
分类号 |
E21B23/08;E21B43/14;E21B34/06;E21B34/14 |
主分类号 |
E21B23/08 |
代理机构 |
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代理人 |
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主权项 |
1. A wellbore dart, comprising:
a body having a downhole end; a dynamic seal arranged about an exterior of the body at or near the downhole end; a plurality of collet fingers extending longitudinally from the body; and a dart profile defined on an outer surface of the plurality of collet fingers, the dart profile being configured to selectively mate with a corresponding sleeve profile of a sliding sleeve. |
地址 |
Houston TX US |