Recovering hydrocarbons from tar sand or heavy oil reservoirs

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Publication Type patent
Author Ong, Tee S.; Hamm, Ronald A.
Title Recovering hydrocarbons from tar sand or heavy oil reservoirs
Date 1994-06-07
Description Method of recovering fluids from an underground tar sand reservoir or heavy oil reservoir comprising (a) drilling and completing a first pair of wells and a second pair of wells, each pair comprising an injection well terminating in the reservoir and a production well terminating in the reservoir below the injection well; (b) circulating steam through the injection wells and performing alternate steam injection and fluid production through the production wells; and (c) injecting steam through the injection wells while producing fluids through the production wells, wherein the injection pressure of the injection well of the first pair of wells is greater than the injection pressure of the injection well of the second pair of wells.
Publisher United States Patent and Trademark Office
Subject hydrocarbon recovery; tar sand; heavy oil; underground tar sand reservoir; patent
Bibliographic Citation Ong, T. S., Hamm, R. A. (1994). Recovering hydrocarbons from tar sand or heavy oil reservoirs. United States Patent 5,318,124. United States Patent and Trademark Office.
Relation Has Part United States Patent 5,318,124
ARK ark:/87278/s6z92bm8
Setname ir_eua
Date Created 2015-02-03
Date Modified 2021-05-06
ID 214391
Reference URL https://collections.lib.utah.edu/ark:/87278/s6z92bm8