Patent ID: 6973971

Claim:
An apparatus for use with a bailer to clean the perforations of a well and to bail liquid from a well, the apparatus comprising; (a) a tubular conduit having an open upper end and an open lower end, the upper end of the conduit being adapted to releasably engage a lower end of the bailer, the tubular conduit comprising: (i) a middle section; (ii) a lower section having a diameter greater than the diameter of the middle section creating a first shoulder where the middle and lower sections meet; and (iii) an upper section releasably engaged to the middle section, the upper section having a diameter greater tan the diameter of the middle section, creating a second shoulder when the upper and middle sections are engaged, (b) a seal disposed on the tubular conduit for sealing between the exterior of the conduit and a well casing; and (c) a valve section, the valve being adapted to open during downwards motion through liquid and to close during upwards motion in liquid, the valve section being adapted to releasably engage either the lower end of the conduit or a lower end of the bailer.