Methods and systems for processing crude oil using cross-flow filtration

摘要

Methods and systems for processing crude oil comprise adding water to the crude oil to produce an emulsion comprising brine and oil and solids; separating oil from brine including producing brine comprising a rag layer; separating the rag layer into a hydrocarbon emulsion having finer solids and brine comprising larger solids; and passing the hydrocarbon emulsion along a cross-flow filter to produce a retentate comprising brine and solids and a permeate comprising hydrocarbon.

主权项

1. A method of processing crude oil comprising:
adding water to the crude oil to produce oil and brine and a rag layer including an emulsion comprising brine and oil and solids; separating oil from brine including producing brine comprising the rag layer; separating the rag layer into a hydrocarbon emulsion having finer solids and brine comprising larger solids; and passing the hydrocarbon emulsion and finer solids along a cross-flow filter to produce a retentate comprising brine and solids and a permeate comprising hydrocarbon.