out sand bridges or permit the well to be otherwise treated the flexible conduit 22 to be run into the well 10 may comprise a small diameter 1 inch soft flexible hose the flexible conduit 22 preferably is capable of withstanding high internal pressures on the order of 5 000 psi it may comprise numerous sections of hose which are joined together by couplings 25 the couplings 25 may be as disclosed in the aforementioned u s pat no 3 866 679 to laky the entire disclosure of which is hereby incorporated by reference for all purposes to inject the conduit 22 into the well 10 the injection system includes connector means 26 through which the conduit 22 passes as it moves into and out of the well 10 injector drive means 28 for positively driving the flexible conduit 22 into and out of the well 10 seal means 30 for sealing around the flexible conduit and preventing well fluids from escaping and curved guide means 32 for guiding the movement of the flexible conduit 22 between the drive means 28 where the conduit 22 is not aligned with the well 10 and connector means 26 where the conduit 22 is aligned with the well 10 the connector means 26 is attached to the blow out preventor 33 on the top of the christmas tree and is in communication therethrough with the well 10 through connector means 22 a passage is provided for moving conduit 22 into and out of the well 10 one form.