04119349 is referenced by 148 patents and cites 10 patents.

Gaseous and liquid products discharged from the outlet of an in-situ retort for the retorting of oil shale are delivered into an underground separating chamber located substantially at the level of the bottom of the retort. The lower portion of the separating chamber is divided by a weir into a first sump adjacent the inlet end of the separating chamber and a second sump adjacent the outlet end of the separating chamber. Oil and water separate in the first sump and the oil overflows the weir into the second sump. Water is withdrawn at a level below the oil in the first sump and pumped to the surface. Oil is withdrawn from the second sump and pumped to the surface separately from the water.

Title
Method and apparatus for recovery of fluids produced in in-situ retorting of oil shale
Application Number
5/844629
Publication Number
4119349
Application Date
October 25, 1977
Publication Date
October 10, 1978
Inventor
Joseph F McMahon
Clinton
NJ, US
Peter Albulescu
Caldwell
NJ, US
Assignee
Standard Oil Company
IL, US
Gulf Oil Corporation
PA, US
IPC
E21C 41/10
E21B 43/24
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