mounting a pivot frame on a portable base frame which is transportable from one well location to another, the portable base frame being supported in a horizontal plane with respect to a surrounding support surface, and wherein the pivot frame is capable of pivoting movement in a plane generally parallel to the plane of the base frame;

mounting a pair of oppositely arranged support arms on the pivot frame, each of the support arms being pivotally mounted at an inner extent at a pivot point on the pivot frame and having an opposite outer extent;

providing a cylindrical take up reel having opposing sides separated by a central region for accumulating the flexible tubing string, each of the opposing sides of the cylindrical take up reel being supported on the portable base frame by connection to a selected one of the respective support arms;

providing a primary pivot mechanism having a first extent pivotally attached to the pivot frame and having a second extent pivotally attached to a respective one of the support arms whereby actuation of the primary pivot mechanism serves to pivot the support arm and, in turn, the cylindrical take up reel between a collapsed position on the base frame and an extended, upright position;

transporting the base frame to a well site adjacent a well bore having a vertical well axis;

actuating the primary pivot mechanism to raise the support arms and, in turn, the take up reel from a collapsed position to a work position which is vertically oriented with respect to a vertical axis of the well bore with the submersible pump being centered up as much as possible with respect to the well bore vertical axis;

actuating the take up reel to dispense a required length of flexible tubing string so that the submersible pump is gradually lowered into the well bore;

connecting a support collar to an upper end of the flexible tubing string, the collar having a greater external diameter than the flexible tubing string at the connection;

providing a U-plate having an upper planar surface, a lower planar surface and a thickness there between, the upper and lower planar surfaces being circumscribed by an outer peripheral edge, the U-plate having a U-shaped opening formed at one point in the outer peripheral edge;

sliding the U-shaped opening about the tubing string below the collar;

providing a door element having an upper planar surface and a lower planar surface, the door element being sized to approximately cover the U-shaped opening formed in the peripheral edge of the U-plate when the U-plate is in place on the tubing string;

positioning the door element to approximately cover the U-shaped opening in the U-plate and to come into contact with the tubing string so that the tubing string passes through the remainder of the opening formed between the door element and U-plate;

securing the door element in position by setting down weight on the tubing string and, in turn, upon the door element and U-plate.