Multi-functional wellbore conditioning system

One-piece construction multi-functional wellbore conditioning system having a tubular body extending along a longitudinal axis X, said system comprising

• a trailing eccentric reamer stage (3A),
• a leading eccentric reamer stage (3B), and
• a drill cuttings agitator (4) being positioned between said trailing and leading eccentric reamer stages,
• wherein said drill cuttings agitator (4) comprises
• a plurality of first stabilizing blades (8) extending radially outwardly from an outer surface of the tubular body,
• a plurality of second stabilizing blades (10) extending radially outwardly from the outer surface of the tubular body,
• a plurality of center stabilizing blades (9) extending radially outwardly from the outer surface of the tubular body and arranged axially between the plurality of first stabilizing blades (8) and the plurality of second stabilizing blades (10), and
• a plurality of hydrodynamic flutes (7) extending in a longitudinal direction and extending radially inwardly from the outer surface of the tubular body,
• where each stabilizing blade of the plurality of first, second and center stabilizing blades (8), (9), (10) is disposed along a circumference coaxial with the tubular body at 90 degrees apart from each other and where the plurality of center stabilizing blades (9) is offset by 45 degrees from the preceding plurality of first stabilizing blades (8) and the following plurality of second stabilizing blades (10),
• said flutes being positioned circumferentially between the center stabilizing blades (9).