Invention Grant
- Patent Title: Demulsification of water-in-oil emulsion
- Patent Title (中): 油包水乳液的破乳
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Application No.: US12305639Application Date: 2007-06-14
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Publication No.: US08093304B2Publication Date: 2012-01-10
- Inventor: Ramesh Varadaraj , Cornelius H. Brons
- Applicant: Ramesh Varadaraj , Cornelius H. Brons
- Applicant Address: US TX Houston
- Assignee: ExxonMobil Upstream Research Company
- Current Assignee: ExxonMobil Upstream Research Company
- Current Assignee Address: US TX Houston
- Agency: ExxonMobil Upstream Research Company - Law Department
- International Application: PCT/US2007/013901 WO 20070614
- International Announcement: WO2008/020909 WO 20080221
- Main IPC: B01D17/05
- IPC: B01D17/05 ; E21B43/22

Abstract:
A method of demulsifying a water-in-oil emulsion is provided. The method includes treating a volume of fluids comprising oil and water by adding a salt of a polynuclear, aromatic sulfonic acid to the fluids so as to cause the oil and water to be at least partially demulsified. The method may further include separating water and oil in a separator. A method of producing hydrocarbons from a subsurface reservoir is also provided. The hydrocarbons include a water-in-oil emulsion. The method includes producing the hydrocarbons through a wellbore, and subjecting the water-in-oil emulsion to a salt of a polynuclear, aromatic sulfonic acid additive so as to cause the oil and water to be at least partially demulsified.
Public/Granted literature
- US20090166028A1 Demulsification of Water-In-Oil Emulsion Public/Granted day:2009-07-02
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