ConocoPhillips
Wax deposit removal using aqueous surfactant
Last updated:
Abstract:
A method and system for removing wax deposits from a wellbore and other oil production and processing equipment using a wax removal surfactant having at least 1% alkyl polyglycoside (APG), at least 0.5% ethoxylated alcohol (AE) or alcohol ethoxysulfates (AES), and at least 1% saturated alcohol, and optionally comprising D-Limonene, wherein the wax removal surfactant solution forms a Winsor Type III or Type IV microemulsion with water and wax.
Status:
Grant
Type:
Utility
Filling date:
6 Jul 2020
Issue date:
30 Aug 2022