US 11,697,992 B2
Determination of downhole formation fluid contamination and certain component concentrations
Christopher Michael Jones, Katy, TX (US); Ralph Piazza, Rio de Janeiro (BR); Anthony H. Van Zuilekom, Houston, TX (US); Megan Renee Pearl, Spring, TX (US); Luiz Alexandre Sacorague, Rio de Janeiro (BR); and Alexandre Jaime Mello Vieira, Rio de Janeiro (BR)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Appl. No. 16/627,164
Filed by Halliburton Energy Services, Inc., Houston, TX (US); and Petroleo Brasileiro S.A. - Petrobas, Rio de Janeiro (BR)
PCT Filed May 18, 2018, PCT No. PCT/US2018/033516
§ 371(c)(1), (2) Date Dec. 27, 2019,
PCT Pub. No. WO2019/221758, PCT Pub. Date Nov. 21, 2019.
Prior Publication US 2020/0157937 A1, May 21, 2020
Int. Cl. E21B 49/08 (2006.01); G01V 8/10 (2006.01)
CPC E21B 49/088 (2013.01) [G01V 8/10 (2013.01); E21B 49/0875 (2020.05)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
deploying at least one tool into a borehole of a formation, wherein the at least one tool comprises a sensor;
obtaining, by the sensor, real time property measurements of a property of a first fluid downhole, wherein the first fluid downhole comprises a formation fluid;
obtaining, by the sensor, real time measurements of an amount of an interactive component of the first fluid downhole;
obtaining, by the sensor, real time measurements of an amount of a non-interactive component of the first fluid downhole; and
determining, based at least in part on measurements obtained by the sensor, a total amount of the interactive component in the first fluid at a time of interest based on the real time property measurements of the first fluid downhole and the real time measurements of the amounts of the interactive component and non- interactive component downhole,
wherein the real time measurements of the amount of the interactive component downhole are real time measurements of the amount of the interactive component in its free form downhole,
wherein the total amount of the interactive component comprises the interactive component in the free form and the interactive component in a bound form; and
performing a fluid sampling operation based, at least in part, on the total amount of the interactive component in the first fluid.