Petromac Conveyance System for Open-hole Wireline Logging - a paradigm change for the industry. Engineered for open-hole and focused on optimising log data quality, the Petromac conveyance system is “best-in class”. The conveyance system has been specifically developed to address the limitations of wireline logging in challenging open-hole conditions, and gives the option to run any wireline tool, with confidence, in high angle wells. Obstructions formed by ledges, washouts and cuttings debris are easily navigated and conventional wireline logging is feasible in very high angle wells. High logging tensions, tool stick-slip and differential sticking are virtually eliminated with resulting gains in operational efficiency.  The system enhances log data quality with tool sensors run in the optimal configuration and orientation. Sampling can be undertaken from the “undamaged” high side of the wellbore.