07841408 is referenced by 106 patents and cites 1119 patents.

A method for treating a tar sands formation is disclosed. The method includes providing a drive fluid to a first hydrocarbon containing layer of the formation to mobilize at least some hydrocarbons in the first layer. At least some of the mobilized hydrocarbons are allowed to flow into a second hydrocarbon containing layer of the formation. Heat is provided to the second layer from one or more heaters located in the second layer. At least some hydrocarbons are produced from the second layer of the formation.

Title
In situ heat treatment from multiple layers of a tar sands formation
Application Number
12/106026
Publication Number
7841408 (B2)
Application Date
April 18, 2008
Publication Date
November 30, 2010
Inventor
Harold J Vinegar
Bellaire
TX, US
Assignee
Shell Oil Company
TX, US
IPC
E21B 43/24
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