Method and apparatus for carrying out rheologic measurements of a drilling mud

Abstract

Method for carrying out rheologic measurements of a drilling mud, comprising: providing a first toroidal conduit (); inserting into said first toroidal conduit () a drilling mud, comprising drilling debris; determining conditions to be simulated for said mud, said conditions to be simulated comprising a path length and/or a flow time to be simulated for said mud; determining, as a function of said conditions to be simulated, operating conditions to be applied to said mud, said operating conditions comprising a number of laps around said first toroidal conduit () and/or a flow time in said first toroidal conduit (); regulating the temperature inside said first toroidal conduit (); regulating the pressure inside said first toroidal conduit (); providing a displacement device () comprising a first projectile (), wherein said first projectile () fills substantially entirely a cross-section of said first toroidal conduit (); moving, by means of said first projectile (), said mud in the first annular conduit () according to said operating conditions. The method further comprises: a first operating step, wherein a force is determined, which is applied by said displacement device () to move said mud in the first toroidal conduit (); a second operating step, wherein a rheologic parameter of said mud is determined as a function of said force.