US 11,768,191 B2
Methods and systems for estimation of oil formation volume factor
Younes Jalali, Houston, TX (US); Ryota Tonoue, Kanagawa-ken (JP); Hua Chen, Sugar Land, TX (US); Christopher Harrison, Auburndale, MA (US); Kamal Kader, Tokyo (JP); Youxiang Zuo, Burnaby (CA); Adriaan Gisolf, Bucharest (RO); Cosan Ayan, Istanbul (TR); Michael Mallari Toribio, Manila (PH); Chetankumar Natwarlal Desai, Sugar Land, TX (US); Oliver Clinton Mullins, Houston, TX (US); Matthew T. Sullivan, Westwood, MA (US); and Elizabeth Smythe, Cambridge, MA (US)
Assigned to SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US)
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
Filed on May 13, 2021, as Appl. No. 17/319,857.
Application 16/531,640 is a division of application No. 14/535,199, filed on Nov. 6, 2014, granted, now 10,371,690, issued on Aug. 6, 2019.
Application 16/531,640 is a division of application No. 17/319,857.
Application 17/319,857 is a continuation in part of application No. 16/531,640, filed on Aug. 5, 2019, granted, now 11,187,693.
Application 17/319,857 is a continuation in part of application No. 15/810,298, filed on Nov. 13, 2017, abandoned.
Prior Publication US 2021/0263008 A1, Aug. 26, 2021
Int. Cl. G01N 33/28 (2006.01); E21B 47/06 (2012.01); E21B 49/00 (2006.01); E21B 49/08 (2006.01); G01N 7/00 (2006.01); E21B 47/00 (2012.01); G01N 21/31 (2006.01)
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
OG exemplary drawing
 
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.