发明名称 System and method for thru tubing deepening of gas lift
摘要 The present disclosure is directed to a gas lift system (40) adapted to provide a gas injection point to a deeper location in a wellbore. A turn-over suspension mandrel (42) can be landed inside a side pocket mandrel (16) and connected to a gas lift valve (22) on one end and a coil (44) on the other end. A length of production tubing (12) can extend from the side pocket mandrel. The production tubing can include a production packer (18) to seal the annulus between the tubing and the well casing (14). The turn-over suspension mandrel can be constructed such that gas entering the gas lift valve is directed down through the coil and into the wellbore beneath the production packer. A plug (78) can be placed at the bottom of the coil in order to prevent blowouts during installation of the gas lift system. An alternative embodiment of the present disclosure provides a coil and plug hung from a gas lift valve of a pack-off assembly.
申请公布号 EP2110509(A2) 申请公布日期 2009.10.21
申请号 EP20090157310 申请日期 2009.04.03
申请人 BJ SERVICES COMPANY 发明人 BOLDING, JEFFREY L.
分类号 E21B43/12 主分类号 E21B43/12
代理机构 代理人
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