Conditioning a tubing head back pressure valve receptacle

A method of wellbore operations comprising:

• attaching a conditioning module to a rod of a lubricator assembly;
• deploying the conditioning module into a wellhead assembly that is mounted over the wellbore;
• manipulating the rod to position the conditioning module into contact with a profile formed in a tubing hanger in the wellhead assembly;
• removing deposits on the profile by rotating the rod while the hanger profile conditioning module is in contact with the profile;
• withdrawing the hanger profile conditioning module from the wellhead assembly;
• obtaining a back pressure valve configured for installation in the profile;
• replacing the conditioning module on the rod with the back pressure valve;
• and
• lowering the back pressure valve through the wellhead assembly on the end of the rod for installation in the tubing hanger.

A system for use in a wellbore comprising:

• a lubricator assembly selectively attached to a wellhead assembly that is mounted over the wellbore;
• an actuator;
• a rod having an upper end attached to the actuator and a portion axially reciprocating and rotating into the lubricator assembly in response to operation of the actuator;
• and
• a hanger profile conditioning module attached to lower end of the rod inside the lubricator, so that when the rod axially reciprocates and rotates the hanger profile conditioning module rotates and contacts and exerts an abrasive force against a profile in the wellhead assembly to remove deposits on the profile, the profile having threads configured for threading attachment of a back pressure valve.