Innovative thinkers ///

Foam has been used routinely in the oil and gas industry to recover production from gas wells that are afflicted with an increasing water cut. When surfactant sticks are dropped into a well, lower interfacial tension between the foam bubbles reduces the weight of the water column in the wellbore. It is then easier for the bottomhole pressure to push this foam column up the wellbore and, thereby, dewater the well.

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