CPC G01N 33/2823 (2013.01) [E21B 47/00 (2013.01); E21B 47/06 (2013.01); E21B 49/005 (2013.01); E21B 49/08 (2013.01); G01N 7/00 (2013.01); G01N 21/31 (2013.01)] | 18 Claims |
1. A method for downhole fluid analysis, comprising:
deploying a sampling system downhole in a borehole located within a reservoir containing hydrocarbons;
using the sampling system to obtain contaminated fluid samples at a plurality of stations along the borehole, the contaminated fluid samples containing fluid and oil based mud (OBM) filtrate;
providing a processor with at least one property of the contaminated fluid samples;
analyzing each contaminated fluid sample in situ to determine saturation pressure and density of each contaminated fluid sample;
correcting for any oil based mud (OBM) filtrate;
determining the saturation pressure of each fluid of the contaminated fluid sample; and
further comprising determining a formation volume factor (FVF) of oil in the reservoir based on saturation pressure and density of the fluid.
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