Lubricator assembly with flange or flow block mounted catcher

Abstract

A lubricator for receiving a reciprocating plunger has a catcher mounted in a lower flange, or in an integral flow block.

1 . A plunger lubricator comprising:
 (a) a lubricator body defining an internal longitudinal bore and having a wall thickness;   (b) an upper lubricator assembly capping an upper end of the lubricator body;   (c) a mounting component for mounting the lubricator body to a wellhead component; and   (d) a plunger catcher positioned below the lubricator body in a portion of the lubricator having a wall thickness greater than the lubricator body wall thickness.   
     
     
         2 . The plunger lubricator of  claim 1  wherein the mounting component is a lower flange. 
     
     
         3 . The plunger lubricator of  claim 1  wherein the mounting component is a flow block. 
     
     
         4 . The plunger lubricator of  claim 1  wherein the plunger catcher is positioned in the widest and/or lowest portion of the lubricator. 
     
     
         5 . The plunger lubricator of  claim 1  comprising a one-piece integral lubricator body comprising an upper cylindrical portion and the mounting component, and the plunger lubricator is positioned in the mounting component. 
     
     
         6 . The plunger lubricator of  claim 5  wherein the mounting component is a lower flange. 
     
     
         7 . The plunger lubricator of  claim 5  wherein the mounting component is a flow block.