04577691 is referenced by 137 patents and cites 13 patents.

Method and apparatus for thermally stimulating bitumen and other viscous hydrocarbon products from a subterranean formation in which the product is held. A plurality of wells are formed in the layer, which wells extend from the surface into a generally horizontal direction through the productive subterranean layer. The respective wells are spaced vertically apart whereby a thermal stimulating fluid such as steam can be selectively injected into discrete segments of the layer. Such injection will achieve the most effective sweeping action by the stimulating fluid through the productive layer. There results an orderly downward flow of the produced product and a more uniform and efficient distribution of heat in the stimulated formation.

Title
Method and apparatus for producing viscous hydrocarbons from a subterranean formation
Application Number
6/649260
Publication Number
4577691
Application Date
September 10, 1984
Publication Date
March 25, 1986
Inventor
Sze Foo Chien
Houston
TX, US
Wann Sheng Huang
Houston
TX, US
Agent
Robert B Burns
James J O Loughlin
Robert A Kulason
Assignee
Texaco
NY, US
IPC
E21B 43/30
E21B 43/24
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