Well Cleaning Tool

Abstract

A well cleaning tool including a tubular body, a cylindrical sleeve and at least one scratching element. The tubular body includes a threaded lower end for attaching to an end cap, and a plurality of first passages. The cylindrical sleeve is sized to receive the tubular body and includes a plurality of second passages such that the second passages are in alignment with the first passages. The at least one scratching element is preferably a rigid cable with frayed ends that is passed through the aligned first and second passages such that the frayed ends outwardly extend from an outer surface of the sleeve. Threading or tightening the tubular body lower end to the end cap will cause the first and second passages out of alignment, causing the rigid cable to crimp or pinch between the first and second passages, retaining the rigid cable in place.

1 . A well cleaning tool comprising:
 a tubular body having an outer surface and a plurality of first passages staggered relative to each other along a longitudinal length of said tubular body,   a cylindrical sleeve sized to releasably receive said tubular body, wherein said cylindrical sleeve having an internal surface that is in frictional engagement with said outer surface of said tubular body, said cylindrical sleeve further including a plurality of second passages staggered relative to each other along a longitudinal length of said cylindrical sleeve,   wherein said first passages are in alignment with said second passages,   a plurality of scratching elements, wherein a length of each of said scratching elements is positioned through said first and second passage and outwardly extends from said second passage,   retaining means to pinch said scratching element between said first and second passages.   
     
     
         2 . The well cleaning tool as recited in  claim 1 , wherein said tubular body defines a threaded lower end having external threads that cooperate with internal threads of a lock nut and end cap. 
     
     
         3 . The well cleaning tool as recited in  claim 2 , wherein tightening said threaded lower end to said end cap will cause the first and second passages out of alignment causing the scratching element to pinch between the first and second passages and retaining said scratching element in place. 
     
     
         4 . The well cleaning tool as recited in  claim 3 , wherein said plurality of scratching elements are rigid cables having frayed ends. 
     
     
         5 . The well cleaning tool as recited in  claim 4 , wherein said rigid cable is passed through aligned first and second passages such that said frayed ends outwardly extend from said cylindrical sleeve. 
     
     
         6 . The well cleaning tool as recited in  claim 1 , wherein said tubular body for connecting to a drill string. 
     
     
         7 . The well cleaning tool as recited in  claim 6 , wherein said tubular body is a hollow tubular body. 
     
     
         8 . The well cleaning tool as recited in  claim 1 , wherein the number of first passages is equal to the number of second passages. 
     
     
         9 . The well cleaning tool as recited in  claim 1 , wherein said first passages extend generally perpendicular to the longitudinal length of said tubular body. 
     
     
         10 . The well cleaning tool as recited in  claim 1 , wherein said second passages extend perpendicular to the longitudinal length of said cylindrical sleeve. 
     
     
         11 . The well cleaning tool as recited in  claim 1 , wherein aligning the first and second passages and removing the scratching element from said first and second passages releases the cylindrical sleeve for separating from said tubular body. 
     
     
         12 . A well cleaning tool comprising:
 a first body having an outer surface and a plurality of first passages,   a second body sized to releasably receive said first body, wherein said second body having an internal surface that is in frictional engagement with said outer surface, said second body including a plurality of second passages,   wherein said first passages are in alignment with said second passages,   at least one scratching elements, wherein a length of each of said at least one scratching elements is positioned through said first and second passage and outwardly extends from said second passage,   retaining means to maintain each of said at least one scratching elements between said first and second passages.   
     
     
         13 . The well cleaning tool as recited in  claim 12 , wherein said plurality of first passages are staggered relative to each other along a longitudinal length of said first body. 
     
     
         14 . The well cleaning tool as recited in  claim 12 , wherein said plurality of second passages are staggered relative to each other along a longitudinal length of said second body. 
     
     
         15 . The well cleaning tool as recited in  claim 13 , wherein said first passages extend generally perpendicular to the longitudinal length of said first body. 
     
     
         16 . The well cleaning tool as recited in  claim 14 , wherein said second passages extend perpendicular to the longitudinal length of said second body. 
     
     
         17 . The well cleaning tool as recited in  claim 12 , wherein said first body defines a threaded lower end having external threads that cooperate with internal threads of a lock nut and end cap. 
     
     
         18 . The well cleaning tool as recited in  claim 17 , wherein adjusting said lower end such that said first and second passages are out of alignment and said scratching element is pinched between said first and second passages and retaining said scratching element in place. 
     
     
         19 . The well cleaning tool as recited in  claim 12 , wherein said at least one scratching elements are rigid cables having frayed ends, and wherein said rigid cable is passed through aligned first and second passages such that said frayed ends outwardly extend from said second body. 
     
     
         20 . The well cleaning tool as recited in  claim 12 , wherein aligning said first and second passages and removing the scratching element from said first and second passages releases the second body for separating from said first body.