Pipe joint catching tool with replaceable blades

Abstract

A pipe joint debris catching tool for oil and gas wells including a monolithic and integrally formed pipe joint having a central body portion, opposite female and male end connector portions and an enlarged outwardly extending tubular sleeve space between the male end connector and the central body portion and wherein guide blades are removably mounted with parallel grooves formed in an outer tubular wall of the tubular sleeve and which blade extend along a length of the central body portion but spaced therefrom.

We claim: 
     
         1 . A catching tool for use in catching debris within a well casing of an oil or gas well, the tool comprising a monolithic integrally formed pipe joint having a female end connector and an opposite male end connector and oriented at opposite ends of a tubular central body portion, a tubular sleeve spaced between the central body portion and the male end connector, the tubular sleeve having an outer tubular surface diameter greater than a diameter of an outer surface of the central body portion spaced such that a thickness of a tubular wall defining the tubular sleeve is greater than a thickness of a tubular wall defining the central body portion, a fluid passage extending along a central axis of the pipe joint and through the pipe joint from the female end connector, the central body portion, the tubular sleeve and male end connector, a plurality of spaced grooves formed in the outer surface of the tubular sleeve so as to be parallel to the central axis of the pipe joint, and a plurality of spacing spring-like blades secured with the grooves, and wherein the plurality of blades extend along but spaced from the central body portion of the pipe joint. 
     
     
         2 . The catching tool of  claim 1  including fasteners for removably mounting the spring-like blades within the grooves. 
     
     
         3 . The catching tool of  claim 1  wherein the outer tubular surface of the tubular sleeve includes at least one flat form therein between at least two of the blades. 
     
     
         4 . The catching tool of  claim 1  wherein the outer tubular surface of the tubular sleeve includes at least one slot for receiving a conduit therein between at least two of the blades. 
     
     
         5 . The catching tool of  claim 1  wherein the blades are formed of stainless steel. 
     
     
         6 . The catching tool of  claim 1  wherein the female end connector is defined by a tubular outer wall having a diameter greater than a diameter of an outer surface of the central body portion, and the tubular outer wall of the female end connector having a greater thickness dimension than a thickness of a tubular wall defining the central body portion. 
     
     
         7 . The catching tool of  claim 1  of a dimension to be used within well casings of up to 5.5 inch OD.