A DOWNHOLE TOOL FOR USE IN A WELLBORE

摘要

The present invention provides a method and an apparatus for use in a wellbo re tool. The apparatus includes a body (115) and a sliding member (155), wherei n the sliding member and a mechanical portion (250) moves between a first position and a second position. A valve assembly (210) 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 provid es an apparatus for a downhole tool that includes a mandrel and a sliding membe r disposed on the mandrel. The sliding member including a plurality of fingers (285) and a plurality of heads (275), wherein the plurality of fingers are slideably recessed within a plurality of longitudinal grooves (355). The invention further provides a collet assembly that includes a body and at lea st two extendable members (275), whereby as the members extend outward, the members are rotated.