Patent · US Active

Method of minimizing immiscible fluid sample contamination

US11193371B2 · kind B2 · utility

0Cited by

10References

20Claims

0Family size

Assignee

SCHLUMBERGER TECHNOLOGY CORPORATION · US

Inventors

Thomas Pfeiffer · Kumhausen, DE
Vladislav Achourov · Stavanger, NO
Ashers Partouche · Katy, US
Pratik Halani · Sugar Land, US
Simon Edmundson · Sugar Land, US

Key dates

Filing date	Sep 15, 2020
Grant date	Dec 7, 2021
Priority date	—
Expiry date	Sep 15, 2040

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B33/1243
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A method of formation fluid sampling that includes setting a dual packer tool in a wellbore. The dual packer tool is used to isolate an interval between an upper packer and a lower packer. The method also includes drawing fluid from the interval with a lower inlet, until an oil fraction increases over a base line reading, and drawing oil from by pumping at a low rate with an upper inlet.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.