Work string tubing connection restoration

A restored worn tubing that can be reused in well operations wherein the worn tubing is worn such that it is no longer approved to be used in the well;

• said worn tubing comprising a body, a box located at one end of said body and a threaded pin member located at an opposite end of said body;
• said box having a base body with a base outer surface;
• said base body having a base body front end, a base body back end, a cavity and threads located in said cavity;
• said threaded pin member including an upset portion, a rear end of said upset portion that is connected to said body of said tubing, and a threaded region extending from a front end of said upset portion;
• said upset portion has a maximum diameter that is greater than a diameter of said threaded region of said pin member;
• wherein said worn work string tubing includes I) a first layer of a hardfacing metal on said base outer surface of said box such that an outer diameter of said box is about 90-200% an OEM outer diameter of said box, and wherein said base outer surface has a diameter that is less than 90% of an OEM diameter of said box prior to said first layer of said hardfacing metal being applied to said base outer surface, and wherein said box is not disfigured or damaged after application of said hardfacing metal to said base outer surface of said box;
• and/or II) a first layer of a hardfacing metal on an upset outer surface said upset portion of said threaded pin member such that an outer diameter of said upset portion is about 90-200% an OEM outer diameter of said upset portion, and wherein said upset portion of said threaded pin member is less than 90% of an OEM outer diameter of said upset portion prior to said first layer of said hardfacing metal being applied to said upset portion, and wherein said threaded region is not damaged after application of said hardfacing metal to said upset outer surface said upset portion of said threaded pin member;
• and
• wherein said first layer of said hardfacing metal has been applied to said outer surface of said box from a direction from a front end of said box towards a back end of said box, and/or said first layer of said hardfacing metal has been applied to said outer surface of said upset portion of said threaded pin member in a direction from a front end of said upset portion to a back end of said upset portion.

A method for repairing a worn tubing;

• said method comprises the steps of:
• providing said worn tubing;
• said worn tubing comprising a tube body, a box located at one end of said tube body, and a threaded pin member located at an opposite end of said tube body;
• said threaded pin member including a threaded region and an upset portion located rearwardly of said threaded region;
• said upset portion having an upset outer surface that defines an upset outer diameter;
• said box having a base body with a base body outer surface that defines a base body outer diameter;
• said base body having a base body front end, a base body back end, a cavity and threads located in said cavity;
• and
• applying a hardfacing metal to (i) said base body outer surface in a direction from said base body front end towards said base body back and wherein at least a portion of said hardfacing metal is located above said threads in said cavity of said base body, and/or (ii) said upset outer surface in a direction from a front end of said upset portion to a back end of said upset portion and wherein said hardfacing metal is spaced from said threaded pin member.