Sucker Rod Cleaner

Abstract

A sucker rod cleaner incorporated onto the well bore casing head of an oil and gas retrieval assembly including and engaging one or more interconnected sucker rods extending within the casing of a well bore and in contact with a down hole located pump. A generally cylindrical three dimensional body is mounted at an above ground location proximate to the casing head of the well bore and through which extends the sucker rod assembly. A plurality of circumferentially offset nozzles communicate external pressurized fluid sources to an interior of said body for cleaning the exterior of the sucker rod assembly. A fluid outlet line communicates with said interior at a further downwardly displaced location associated with said body and, during withdrawal of the sucker rod assembly, creates an internal suction within said body for retaining and disposing fluid entrained debris dislodged from the assembly by said nozzles.

1 . A sucker rod cleaner mounted onto a well bore casing head of an oil and gas retrieval assembly, the assembly mechanism engaging at least one sucker rod extending within a well bore in contact with a down hole located pump, said cleaner being comprised of:
 a body mounted at an above-ground location above the well head through which extends the sucker rod assembly; and   at least one nozzle communicating an external pressurized fluid to the interior of said body through which the sucker rod assembly extends; and   a fluid outlet communicating with said interior at a further location associated with said body and, during withdrawal of the sucker rod, creating an internal suction within said body for retaining and disposing fluid entrained debris dislodged from the rod by said nozzle(s).   
     
     
         2 . The invention as described in  claim 1 , said body having a specified shape and size and further comprised of a main cylindrical portion located between a top flange and a bottom flange. 
     
     
         3 . The invention as described in  claim 2 , further comprising an upper seal and a lower seal respectively sandwiched between opposite end located flanges associated with said main cylindrical portion and said top and bottom flanges. 
     
     
         4 . The invention as described in  claim 2 , further comprising a plurality of nozzles arranged in circumferentially spaced fashion about said main cylindrical portion. 
     
     
         5 . The invention as described in  claim 1 , further comprising a suction inducing connection secured to said fluid outlet. 
     
     
         6 . The invention as described in  claim 2 , further comprising a secondary cylindrical portion incorporated into said bottom flange, a threaded collar extending from an underside of said secondary cylindrical portion and engaging an internally threaded connection associated with the well's bore casing head. 
     
     
         7 . The invention as described in  claim 1 , further allowing a plurality of threaded end to end connected sucker rods adapted to extend through said interior of said body. 
     
     
         8 . The invention as described in  claim 4 , further comprising each of said nozzles communicating a pressurized fluid flow in a combined downwardly and offset angular direction relative to an axial centerline extending through the sucker rod. 
     
     
         9 . The invention as described in  claim 1 , further comprising said fluid outlet extending at a downwardly displaced location relative to said nozzle(s). 
     
     
         10 . The invention as described in  claim 3 , further comprising upper and lower pluralities of threaded bolts for securing said pairs of flanges and sandwiched seals. 
     
     
         11 . A sucker rod cleaner mounted onto a well bore casing head of an oil and gas retrieval assembly, such assembly engaging a plurality of end to end connected sucker rods connected to a down hole located pump within the casing of a well bore, said cleaner comprising:
 a body including a main cylindrical portion located between a top flange and a bottom flange which is mounted at an above-ground location upon the casing head of a well bore so that the sucker rods extend therethrough; and   a plurality of nozzles arranged in circumferentially spaced fashion about said main cylindrical portion, each of said nozzles communicating an external pressurized fluid to an interior location of said body through which the sucker rod assembly extends; and   a fluid outlet communicating with said interior at a further location associated with said body and, during withdrawal of the sucker rod assembly creating an internal suction within said body for retaining and disposing fluid entrained debris dislodged from the rods by said nozzles.   
     
     
         12 . The invention as described in  claim 11 , further comprising an upper seal and a lower seal respectively sandwiched between opposite end located flanges associated with said main cylindrical portion and said top and bottom flanges. 
     
     
         13 . The invention as described in  claim 11 , further comprising a suction inducing connection secured to said fluid outlet. 
     
     
         14 . The invention as described in  claim 11 , further comprising a secondary cylindrical portion incorporated into said bottom flange, a threaded collar extending from an underside of said secondary cylindrical portion and engaging an internally threaded connection associated with an upper end of the casing head of the well bore. 
     
     
         15 . The invention as described in  claim 11 , further comprising each of said nozzles communicating a pressurized fluid flow in a combined downwardly and offset angular direction relative to an axial centerline extending through the sucker rod assembly. 
     
     
         16 . The invention as described in  claim 11 , further comprising said fluid outlet extending at a downwardly displaced location relative to said at least one nozzle. 
     
     
         17 . The invention as described in  claim 11 , further comprising upper and lower pluralities of threaded bolts for securing said pairs of flanges and sandwiched seals. 
     
     
         18 . A sucker rod cleaner incorporated into an oil and gas retrieval assembly, comprising:
 a generally cylindrical shaped body mounted at an above-ground location atop the casing head of a well bore and through which extends a sucker rod assembly; and   a plurality of nozzles arranged in circumferentially spaced fashion about said cylindrical shaped body, each of said nozzles communicating an external pressurized fluid to an interior location of said body through which the sucker rod assembly extends; and   a fluid outlet communicating with said interior at a further location associated with said body and, during withdrawal of the sucker rod assembly, creating an internal suction within said body during evacuation of fluid entrained debris dislodged from the rod through a suction inducing connection secured to the fluid outlet.