Process for increasing flow capacity of gas wells

Details Process for increasing flow capacity of gas wells Process for increasing flow capacity of gas wells

E - Fixed Constructions

21

B

E21B 43/12 (2006.01) E21B 43/18 (2006.01)

Patent

CA 2341129

14 A process is proposed for the removal of liquids from the reservoir and/or the fracture-proppant pack of gas wells. Water that is trapped by capillary and viscous forces in areas of low velocity are mobilized by the application of an abrupt flowing- pressure reduction or shock. Liquids are then recovered from the wellbore to prevent hydrostatic back-pressure restrictions on the gas well. Flow at the reduced pressure is continued until liquid recovery from the wellbore reaches a minimum. The well is then returned to the normal operating pressure. The well may be capable of more gas production after this process.

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