Patent Number: 6,966,374

Title: In situ thermal recovery from a relatively permeable formation using gas to increase mobility

Abstract: A method for treating a relatively permeable formation containing heavy hydrocarbons in situ may include providing heat from one or more heat sources to a portion of the formation. The heat may be allowed to transfer from the heat sources to a selected section of the formation. The transferred heat may reduce the viscosity of at least some hydrocarbons within the selected section. A gas may be provided to the selected section of the formation. The gas may produce a flow of hydrocarbons within the selected section. A mixture of hydrocarbons may be produced from the selected section.

Inventors: Vinegar; Harold J. (Houston, TX), Sumnu-Dindoruk; Meliha Deniz (Houston, TX), Wellington; Scott Lee (Bellaire, TX)

Assignee: Shell Oil Company

International Classification: E21B 7/04 (20060101); E21B 17/00 (20060101); E21B 36/02 (20060101); E21B 17/10 (20060101); E21B 43/00 (20060101); E21B 36/04 (20060101); E21B 43/30 (20060101); E21B 43/24 (20060101); E21B 43/28 (20060101); E21B 36/00 (20060101); E21B 47/06 (20060101); E21B 43/243 (20060101); E21B 43/247 (20060101); E21B 43/16 (20060101); E21B 043/24 (); E21B 043/16 ()

Expiration Date: 1/22/02018