发明名称 WEIGHT DOWN COLLET FOR A DOWNHOLE SERVICE TOOL
摘要 A weight down collet includes a mandrel that provides an outer diameter feature and a shoulder, and a collet sleeve assembly movably disposed about the mandrel. The collet sleeve assembly includes a body, a primary collet provided on the body and defining an upper detent and a lower detent having a gap defined therebetween, and a secondary collet provided on the body and axially spaced from the primary collet. The upper and lower detents extend radially outward from the body and are engageable with one or more restrictions provided on an inner wall of a completion string, and the secondary collet defines an inner detent that extends radially inward and is engageable with the shoulder. The collet sleeve assembly is movable between an unsupported position, where the primary collet is radially unsupported, and a supported position, where the primary collet is radially supported on the outer diameter feature.
申请公布号 US2016273291(A1) 申请公布日期 2016.09.22
申请号 US201414759727 申请日期 2014.09.15
申请人 HALLIBURTON ENERGY SERVICES, INC. 发明人 Scott Keith Wayne;Frosell Thomas Jules
分类号 E21B23/03 主分类号 E21B23/03
代理机构 代理人
主权项 1. A weight down collet, comprising: a mandrel that provides an outer diameter feature and a shoulder defined on the outer diameter feature; and a collet sleeve assembly movably disposed about the mandrel, the collet sleeve assembly including: a body;a primary collet provided on the body and defining an upper detent, a lower detent, and a gap defined therebetween, wherein the upper and lower detents extend radially outward from the body and are engageable with one or more restrictions provided on an inner wall of a completion string; anda secondary collet provided on the body and axially spaced from the primary collet, wherein the secondary collet defines an inner detent that extends radially inward and is engageable with the shoulder, and wherein the collet sleeve assembly is movable between an unsupported position, where the primary collet is radially unsupported, and a supported position, where the primary collet is radially supported on the outer diameter feature.
地址 Houston TX US