04431056 is referenced by 3 patents and cites 8 patents.

The vertical conformance of a steam drive process is improved by conducting the steam flood process in two stages. In the first stage, steam is injected into the lower portion of the formation via an injection well and oil is recovered from the upper portion of the formation via a spaced apart production well. Once there is a breakthrough of steam at the production well, injection of steam and production are terminated. In the second stage, the roles of the injection well and production well are reversed. A thermal recovery fluid comprising steam or hot water is injected into the lower portion of the formation via the production well and oil is recovered from the lower portion of the formation via the injection well until the oil recovered contains an unfavorable amount of steam or water.

Title
Steam flood oil recovery process
Application Number
6/293759
Publication Number
4431056
Application Date
August 17, 1981
Publication Date
February 14, 1984
Inventor
Winston R Shu
Dallas
TX, US
Agent
Lawrence O Miller
James F Powers Jr
Alexander J McKillop
Assignee
Mobil Oil Corporation
NY, US
IPC
E21B 43/24
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