Give up in advance and fill device

The utility model discloses a give up in advance and fill device, including staying the well part and locating the part of giving up in its, give up the partial head position that gives up in stayingthe sub -center of well portion intraductal and connect with left -handed screw knot type, when setting up completion pipe string, staying the empty intercommunication of well part and oil sleeve annulus, staying well part and sand control union coupling, sand control guan lian has the centralizer, and least significant end is connected the plug, oil pipe is connected with the partial first end ofgiving up, and the washing pipe is connected with the second end of giving up partially, is equipped with levogyration connection screw thread at the partial lower extreme of giving up and is connected with staying the well part. The utility model discloses can obviously improve gravel pack sand control effect, reduction sand control construction operation process and time, reduction constructioncost, have that tubular co