Method for controlling lost circulation of drilling fluids with water absorbent polymers
作者： Clarence O. Walker
DOI:
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摘要: The invention is a method for reducing lost circulation of aqueous or oil based drilling fluids wherein one more water absorbent polymers are dispersed in hydrocarbon fluid which injected into the zone. carrier initially prevents from contacting polymer until such contact desired. Once slug containing properly placed at zone, mixed with so that will expand absorbed and substantially increase size to close off
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