公开(公告)号：US20210388721A1

公开(公告)日：2021-12-16

申请号：US17285925

申请日：2019-10-17

Applicant: Schlumberger Technology Corporation

Inventor： Kai Hsu ,  Thomas Pfeiffer ,  Kang Wang ,  Dan Schulz ,  Morten Kristensen ,  Youxiang Zuo

IPC: E21B49/08 ,  E21B49/10 ,  G01N21/94 ,  G01N21/59 ,  G01N21/85 ,  G01N21/31

Abstract: A method includes receiving first fluid property data from a sample flowline of a focused sampling system and receiving second fluid property data from a guard flowline of the focused sampling system. The sample flowline and the guard flowline are each configured to sample formation fluid from a hydrocarbon reservoir, the formation fluid includes native formation fluid and a contaminant, and the first fluid property data includes an optical density of the native formation fluid and the second fluid property data includes an optical density of the contaminant