发明名称 |
Downhole tool for use in a wellbore |
摘要 |
The present invention provides a method and an apparatus for use in a wellbore tool. The apparatus includes a body and a sliding member, wherein the sliding member and a mechanical portion moves between a first position and a second position. A valve assembly causes the sliding member and mechanical portion to shift to its second position at a predetermined flow rate of fluid through the body. The invention also provides an apparatus for a downhole tool that includes a mandrel and a sliding member disposed on the mandrel. The sliding member including a plurality of fingers and a plurality of heads, wherein the plurality of fingers are slideably recessed within a plurality of longitudinal grooves. The invention further provides a collet assembly that includes a body and at least two extendable members, whereby as the members extend outward, the members are rotated.
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申请公布号 |
US2003217850(A1) |
申请公布日期 |
2003.11.27 |
申请号 |
US20020154489 |
申请日期 |
2002.05.22 |
申请人 |
SHAW JOEL D.;TEALE DAVID W.;LAIRD MARY L. |
发明人 |
SHAW JOEL D.;TEALE DAVID W.;LAIRD MARY L. |
分类号 |
E21B10/32;E21B23/02;E21B23/04;E21B47/09;(IPC1-7):E21B34/10 |
主分类号 |
E21B10/32 |
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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