发明名称 |
INTERVENTIONLESS BI-DIRECTIONAL BARRIER |
摘要 |
An interventionless bi−directional barrier device of a downhole tool (10) for use in a wellbore and a method of utilizing the barrier device (56) to control the flow of production fluids in the wellbore are described herein. The barrier device includes a flapper mechanism having a first (66) and second (68) flappers articulably linked together and articulably linked to a base member (58, 72) that is slidable within the downhole tool (10). The flapper mechanism provides a seal between opposing uphole− and downhole ends of the downhole tool upon actuation thereof. The method of controlling the flow of production fluids in the wellbore includes closing the barrier device to block flow throughout he tool, supporting the barrier device from a pressure exerted from a first direction, and supporting the barrier device from a pressure exerted from a second direction.
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申请公布号 |
WO03054347(A1) |
申请公布日期 |
2003.07.03 |
申请号 |
WO2002US40446 |
申请日期 |
2002.12.18 |
申请人 |
BAKER HUGHS INCORPORATED |
发明人 |
HORNE, BENJAMIN;CAMERON, DAVID |
分类号 |
E21B34/00;E21B34/08;E21B34/14;(IPC1-7):E21B34/08;E21B34/12 |
主分类号 |
E21B34/00 |
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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