Method of extracting hydrocarbons from underground...

Details Method of extracting hydrocarbons from underground... Method of extracting hydrocarbons from underground...

E - Fixed Constructions

21

B

E21B 43/16 (2006.01) E21B 43/12 (2006.01) E21B 43/38 (2006.01)

Patent

CA 2295364

A method of extracting liquid hydrocarbons from geological formations having a reduced or low liquid hydrocarbon flow rate utilizing a wellbore extending downwardly from the surface of the ground into the geological zone of interest. The method includes the steps of first creating at least one downhole reservoir through enlarging a portion of the wellbore. The downhole reservoir is made substantially larger than the wellbore and formed so as to hold a desired amount of effluent, which includes liquid hydrocarbons, based upon approximated flow rates of effluent from the geological zone of interest. Effluent is allowed to accumulate in the downhole reservoir for a desired length of time until it reaches a desired level. Finally, the effluent is evacuated from the downhole reservoir through the use of a pump.

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