Side pocket mandrel for gas lift wells and method for its manufacturing

摘要

A side pocket mandrel for use in gas lift wells has an orientation housing (52), which in turn has an orienting slot (60) and guide surfaces (64) integrally formed with the orientation housing. The orientation housing is preferably machined out of a single piece of metal. The orientation housing (52) is then welded onto the remainder (54) of the side pocket mandrel (50). A side pocket mandrel made in this manner has less area for crevice corrosion, can be made stronger so that it is less prone to breakage, and has a reduced risk of the orientation housing (52) breaking loose from the interior walls of the mandrel (50). <IMAGE> <IMAGE>