Patent · US Active

Formation testing

US10711607B2 · kind B2 · utility

0Cited by

13References

5Claims

0Family size

Assignees

SCHLUMBERGER TECHNOLOGY CORPORATION · US
EQUINOR ASA · NO

Inventors

Sylvain Bedouet · Houston, US
Kare Otto Eriksen · Stavanger, NO

Key dates

Filing date	Oct 5, 2018
Grant date	Jul 14, 2020
Priority date	—
Expiry date	Oct 5, 2038

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B49/10
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

Formation testing which may involve circulating mud in a pipe string from a mud pit through a port in the pipe string to a downhole diverter sub, wherein the pipe string is suspended in a wellbore extending into a subterranean formation, operating a downhole pump to pump formation fluid from the formation, wherein the formation fluid comprises gas, and mixing the pumped formation fluid with circulated mud such that a proportion of the pumped formation gas in the circulated mud is maintained below a threshold value.

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