METHODS OF FILTERING A LIQUID STREAM PRODUCED FROM AN IN SITU HEAT TREATMENT PROCESS

摘要

The invention provides methods for producing one or more crude products that includes producing formation fluid from a subsurface in situ heat treatment process; separating the formation fluid to produce a liquid stream and a gas stream; providing the at least a portion of the liquid stream to a nanofiltration system to produce a retentate and a permeate, providing the permeate to one or more processing units positioned downstream of the nanofiltration system; and processing the filtered liquid stream in one or more of the downstream processing units to form one or more crude products.