LUBRICATION COMPOSITION WITH AN ADAPTABLE COEFFICIENT OF FRICTION, FOR A THREADED ELEMENT OF A THREADED TUBULAR CONNECTION COMPONENT

摘要

A FILM-FORMING LUBRICATION COMPOSITION FOR MAKE-UP OF THREADED CONNECTIONS, INTENDED TO COVER AT LEAST ONE THREADING (FE, F1) AND A MAKE-UP ABUTMENT (BVM, BVF) OF A THREADED ELEMENT (EM, EF) OF A COMPONENT (T2,T1) OF A THREADED TUBULAR CONNECTION (JF) WITH A SOLID STATE FILM WHICH ADHERES TO THE THREADING (FE, F1) AND TO SAID MAKE-UP ABUTMENT (BVM, BVF), SAID MAKE-UP ABUTMENT (BVM, BVF) BEING INTENDED TO BEAR AGAINST ANOTHER ABUTMENT (BVF, BVM) OF ANOTHER COMPONENT (T1, T2) OF SAID THREADED TUBULAR CONNECTION (JF) DURING THE TERMINAL MAKE-UP PHASE, AND SAID LUBRICATION COMPOSITION COMPRISING A MATRIX.THE MATRIX FURTHER COMPRISES AT LEAST ONE RHEORESISTANT MATERIAL SELECTED SO AS TO ENDOW SAID COMPOSITION, AS A COMPLEMENT TO LUBRICATION, WITH A SHOULDERING TORQUE WHICH IS AT LEAST EQUAL TO A THRESHOLD VALUE.