PLUNGER ASSEMBLY WITH COATED DART AND WEAR PADS

摘要

The present application includes an assembly and method for a plunger tool configured to remove contaminants from a well bore. The assembly includes a hollowed body, a dart configured to selectively close off the passage of working fluid through the body, and a wear pad coupled to an exterior surface of the body to protect the body from corrosive wear. The assembly may further include a dart having a core member and wear coating. The dart is configured to be interchangeable within the body and without the need to disassembly the body. The wear coating compressing for insertion and being sheared off during removal the dart. The body includes an internal lip to prevent the undesired removal of the dart.

主权项

1. A plunger assembly for removing contaminants within a well bore, comprising:
a hollowed body configured to traverse between a striker rod and a stop within the well bore and remove contaminants and particulates within working fluid inside the well bore; a centrally traversing dart within a lower section of the hollowed body, the dart configured to selectively close off the passage of working fluid through the hollowed body; and a wear pad coupled to an exterior surface of the hollowed body, the wear pad configured to protect the hollowed body from exposure to the contaminants and particulates, the wear pads configured to be interchangeable.