Methods and systems for correction of oil-based mud filtrate contamination on saturation pressure

A method, comprising:

• measuring downhole saturation pressures of a contaminated fluid over a pumpout volume or a pumpout time, wherein the contaminated fluid comprises uncontaminated fluid and an OBM filtrate;
• determining a function for the measured saturation pressures based on the pumpout volume or pumpout time;
• extrapolating the function to infinite pumpout volume or infinite pumpout time;
• determining a saturation pressure for the uncontaminated fluid at the infinite pumping volume or infinite pumping time;
• and
• using a hypothetical saturation pressure for the OBM filtrate, the saturation pressure for the uncontaminated fluid, and the measured saturation pressure for the contaminated fluid to determine the OBM filtrate contamination.