| 摘要 |
<p>OIL RECOVERY PROCESS USING A VISCOSITY ADJUSTED GELATION SYSTEM A gelation system for reducing the permeability of a subterranean region is provided by sequentially injecting slugs of a polymer solution and a crosslinking agent solution capable of crosslinking the polymer. The viscosity of the crosslinking agent solution is adjusted to facili-tate mixing of the slugs in the desired treatment region to a form gel therein and minimize premature gelation outside of the treatment region.</p> |
