Reducing water production in a naturally fractured gas well using sequential gel/gas slug injection

摘要

The application of gels for the control of excessive water production in oil and gas wells has been a treatment alternative for several years. The success of these treatments; however, has been relatively low. The Talisman Energy Inc. (Talisman)-operated Sukunka, British Columbia field pilot was conducted in conjunction. with an ongoing research project at teh Petroleum Recovery Institute to imprve water abatement techniques in gas reservoirs. Sequentially injecting multiple slugs of gelant followed by gas allows for gel placement in the water conducting fractures or high permeability channels, while the gas overrides and reconnects to the upper gas zone.