US 11,719,096 B2
Contamination prediction of downhole pumpout and sampling
Peter Ojo Olapade, Richmond, TX (US); Bin Dai, Spring, TX (US); Christopher Michael Jones, Katy, TX (US); James Martin Price, Cypress, TX (US); Dingding Chen, Tomball, TX (US); and Anthony Herman Van Zuilekom, Houston, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Oct. 24, 2022, as Appl. No. 17/971,957.
Application 17/971,957 is a continuation of application No. 17/237,851, filed on Apr. 22, 2021, granted, now 11,506,051.
Application 17/237,851 is a continuation of application No. 16/447,808, filed on Jun. 20, 2019, granted, now 11,021,951.
Prior Publication US 2023/0106930 A1, Apr. 6, 2023
Int. Cl. E21B 49/08 (2006.01); E21B 49/10 (2006.01); G01N 33/28 (2006.01); E21B 47/06 (2012.01); E21B 21/00 (2006.01); E21B 47/12 (2012.01)
CPC E21B 49/081 (2013.01) [E21B 47/06 (2013.01); E21B 49/10 (2013.01); G01N 33/2823 (2013.01); E21B 21/003 (2013.01); E21B 47/12 (2013.01); E21B 49/0875 (2020.05)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
positioning a downhole fluid sampling tool into a wellbore;
performing at least one pressure test operation within the wellbore;
performing at least one pumpout operation within the wellbore;
identifying one or more formation parameters at least in part from the at least one pressure test operation or the at least one pumpout operation;
building a correlation model that relates a pumpout trend to the one or more formation parameters;
determining a time when the downhole fluid sampling tool takes a clean fluid sample utilizing at least the correlation model; and
acquiring the clean fluid sample with the downhole fluid sampling tool from the wellbore.