In situ chemical stimulation of diatomite formations

Details In situ chemical stimulation of diatomite formations In situ chemical stimulation of diatomite formations

1987-10-13

1989-05-09

Suchfield, George A.

Wells

Processes

Distinct, separate injection and producing wells

166273, 166274, 166275, 166303, 1663051, 208435, 208429, 252 8554, E21B 4322, E21B 4324

Patent

active

048280313

ABSTRACT:
An improved method of recovering oil from diatomite is described. A solvent is injected into the diatomite followed by an aqueous surface active solution. The aqueous surface active solution contains a diatomite/oil water wettability improving agent and an oil/water surface tension lowering agent. The method may be supplemented by injection of water and/or steam into the diatomite.

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Alford et al, "Utah Tar Sands to be Developed", Hydrocarbon Processing, Jun. 1981, pp. 127-130.

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