发明名称 Liner cementation process and system
摘要 Present embodiments are directed to coupling a cementation assembly with a hung or set liner string in a well and moving the liner string during a cementation operation. Specifically, for example, a process in accordance with present techniques includes running a cementation assembly into a well on drill pipe and engaging, with a distal end of the cementation assembly, a liner top assembly of a liner string that is positioned downhole in the well, wherein the liner string was previously positioned downhole in the well without being cemented into the well. Further, the process includes latching the cementation assembly with the liner string such that movement of the cementation assembly is translated to the liner string, and flowing cement through the drill pipe and into the liner string while moving the cementation assembly and the liner string.
申请公布号 US8881814(B2) 申请公布日期 2014.11.11
申请号 US201213461342 申请日期 2012.05.01
申请人 Schlumberger Technology Corporation 发明人 Moffitt Michael Eric
分类号 E21B33/14;E21B43/10;E21B7/20 主分类号 E21B33/14
代理机构 Osha Liang LLP 代理人 Osha Liang LLP
主权项 1. A process, comprising: running a cementation assembly into a well on drill pipe; engaging, with a distal end of the cementation assembly, a liner top assembly of a liner string that is downhole in the well, wherein the liner string was previously positioned downhole in the well without being cemented into the well; latching the cementation assembly with the liner string such that movement of the cementation assembly is translated to the liner string, wherein latching the cementation assembly with the liner string comprises activating a latch on a tie back seal stem shoe of the cementation assembly to engage a casing profile nipple of the liner string; flowing cement through the drill pipe and into the liner string; and moving the cementation assembly and the liner string during the flowing of cement.
地址 Sugar Land TX US