| 摘要 |
Control of flow of liquids in formations is effected by introduction of a gas, or gases, into the formation and varying the pressure on the liquid in the formation, which may be an oil and gas bearing formation, and upon the introduced gas wherein inter-dispersed gas and liquid globules may be formed in selected regions of the formation, thus causing capillary blocking to flow of liquids in preselected regions of the formation.
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