Tubular string with load transmitting coupling

A method of wellbore operations comprising:

• operating a tubular string in a wellbore, the tubular string comprising,
• a first tubular member having a box end,
• a second tubular member comprising a pin end that is engaged with the box end, and provided along an outer surface of the pin end is a recess that comprises a first end, a second end opposite the first end, and a shoulder formed in the first end,
• a coupling assembly comprising a first annular thrust ring having an axial end in axial abutment with the box end and a ledge that is spaced away from the axial end, and a second annular thrust ring having a surface abutting the ledge on the first annular thrust ring and an end abutting the shoulder formed in the first end of the recess;
• and
• applying an axial force onto the tubular string causing a load to transfer between the first and second tubulars, and a portion of the load along a path that intersects the coupling assembly and the shoulder of the recess.

A tubular string for use in a wellbore comprising:

• a first tubular member having a box end;
• a second tubular member having a pin end that is inserted into the box end;
• a recess formed along an outer circumference of the pin end;
• and
• a coupling assembly comprising,
• a first annular thrust ring having an axial end in selective axial abutment with the box end, and
• a second annular thrust ring comprising,
• a surface abutting a ledge on the first annular thrust ring that is spaced away from the axial end,
• an end abutting a shoulder formed in the recess,
• an annular journal, and
• an annular base having an outer radius greater than an outer radius of the annular journal.