发明名称 Tubing string with latch system
摘要 A technique facilitates a variety of well services. A tubing string is provided with a latch assembly having a lower latch assembly portion, an upper latch assembly portion, and a latch mandrel. The latch mandrel comprises a weakened region disposed in a housing of the latch assembly. Additionally, a release mechanism may be employed to facilitate release of the upper latch assembly portion from the lower latch assembly portion upon separating the latch mandrel at the weakened region.
申请公布号 US9169699(B2) 申请公布日期 2015.10.27
申请号 US201213494669 申请日期 2012.06.12
申请人 Schlumberger Technology Corporation 发明人 Rytlewski Gary
分类号 E21B17/06;E21B23/02;E21B33/038 主分类号 E21B17/06
代理机构 代理人 Traister Patrick;Clark Brandon;Peterson Jeffrey
主权项 1. A system for use in performing a well service, comprising: a landing string having a latch assembly, the latch assembly comprising: a lower latch assembly portion;an upper latch assembly portion selectively engageable with the lower latch assembly portion; anda latch mandrel received in the upper latch assembly, the latch mandrel having a weakened region located within a housing of the upper latch assembly, the weakened region creating a breakpoint which breaks upon application of a predetermined tensile load applied by pulling up on the landing string and the latch mandrel.
地址 Sugar Land TX US