Wells – Processes – Cyclic injection then production of a single well
Patent
1995-04-14
1997-03-04
Suchfield, George A.
Wells
Processes
Cyclic injection then production of a single well
166 50, 166266, 166268, E21B 4322, E21B 4340
Patent
active
056070160
ABSTRACT:
A method for the recovery of hydrocarbons from a reservoir of hydrocarbons including injecting a hydrocarbon solvent into the reservoir along with a displacement gas to mobilize hydrocarbons in the reservoir of hydrocarbons; and producing mobilized hydrocarbons from the reservoir of hydrocarbons. The hydrocarbon solvent is injected along one or more predominantly horizontal injection wells in the aquifer that are spaced from the production well or wells. The hydrocarbon solvent is a hydrocarbon solvent selected from the group consisting of ethane, propane, butane. Apparatus for the recovery of hydrocarbons from a reservoir of hydrocarbons includes at least a first and preferably several injection wells drilled into the reservoir, the injection wells having a portion open to fluid communication with the reservoir; and at least a first production well and preferably several production wells drilled into the reservoir, and spaced below the injection wells, the first production well including a pump for pumping oil from the well. A solvent recovery system is also preferably connected between adjacent injection wells and production wells.
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Closed-Loop Extraction Method for the Recovery of Heavy Oils and Bitumens Underlain by Aquifers: The Vapex Process, R. M. Butler and I. J. Mokrys, University of Calgary, presented at the Fifth Petroleum Conference of the South Saskatchewan Section, The Petroleum Society of CIM, held with Canmet in Regina, Oct. 18-20, 1993, 17 pages.
Lambert Anthony R.
Suchfield George A.
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