| 摘要 |
The invention relates to a method for improving the delivery of crude oil from a petroliferous bed in which an aqueous initial solution is pumped in. A water-soluble inhibitor which inhibits the formation of gel is added to the aqueous initial solution made of polycations and polyanions. When said initial solution is pumped in, gel forms only in an aquiferous layer and seals the solution. The gel formation ceases in an oil layer due to the presence of the inhibitor. |
