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