Patent · US Active

Formation testing

US10107096B2 · kind B2 · utility

3Cited by

13References

14Claims

0Family size

Assignees

SCHLUMBERGER TECHNOLOGY CORPORATION · US
STATOIL ASA · NO

Inventors

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

Key dates

Filing date	Jun 30, 2014
Grant date	Oct 23, 2018
Priority date	—
Expiry date	Jun 26, 2036

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.