Patent · US Active

Anti-accretion additives for wellbore fluids and methods of use thereof

US10253238B2 · kind B2 · utility

0Cited by

1References

20Claims

0Family size

Assignees

M-I L.L.C. · US
SCHLUMBERGER NORGE AS · NO

Inventors

Stephen Cliffe · Stonehaven, GB
Anders Grinrod · Sandnes, NO

Key dates

Filing date	Nov 11, 2016
Grant date	Apr 9, 2019
Priority date	—
Expiry date	Dec 11, 2036

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09K2208/28
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Accretion inhibiting wellbore fluid compositions a ay contain a multiester, a sorbitan ester surfactant, and a base fluid, wherein the composition is in the form of a metastable emulsion. Methods may include emplacing a wellbore fluid into a wellbore, the wellbore fluid containing a multiester, and a sorbitan ester surfactant, wherein the wellbore fluid forms a metastable emulsion.

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