Patent Number: 8,869,892

Title: Low salinity reservoir environment

Abstract: Method for recovery of hydrocarbon includes: a. injecting mixture of high salinity brine and low salinity brine into the formation, wherein the mixture is injected into the formation through a first pump, wherein the first pump is an automated control pump, at a flow rate based on physical characteristics of the formation, the flow rate of the mixture gradually and continuously decreases, b. injecting fresh water into the formation, wherein the mixture is injected into the formation through a second pump, wherein the second pump is an automated control pump, wherein the fresh water is injected into the formation at a flow rate based on the physical characteristics of the formation, wherein the flow rate gradually and continuously increases; and c. introducing surfactants or polymers into the formation, wherein the surfactant acts as a motive force to drive the hydrocarbons towards one or more production wells.

Inventors: Pone; Jean Denis (Bartlesville, OK)

Assignee: ConocoPhillips Company

International Classification: E21B 43/22 (20060101)

Expiration Date: 2018-10-28 0:00:00