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Method and composition for reducing the permeability of a Zone of high permeability in an oil Reservoir

机译:降低油藏中高渗透率区渗透率的方法和组合物

摘要

The present Invention relates to a method for reducing the permeability of high permeability Zone in a Tank of Oil temperature HighComprising: preparing an aqueous solution Polymer gelificable that operates on the surface under controlled conditions, gelificable Inject the solution into the Tank OilThrough at least one Shaft; Moving the solution through the Warehouse,To that extent and substantially fill the High permeability Zone to be treated; and in situ Gelling Solution consistent with the decrease of permeability in the area of permeabiliGive high gelificable, characterized in that the solution is an aqueous solution containing between 1000 to 50000 ppm of an organic Polymer entrelazable the effect ion of Chromium (iii).
机译:本发明涉及一种用于降低油温高的罐中的高渗透性区域的渗透性的方法,包括:制备水溶液在可控制的条件下在表面上操作的可胶凝的聚合物,可胶凝性通过至少一个轴将溶液注入到油中;将溶液移至整个仓库,并充分填满要处理的高渗透率区域;以及与可渗透性高的可胶化区域中的渗透性降低相一致的原位胶凝溶液,其特征在于该溶液是包含可与铬(iii)的作用离子相关的1000至50000ppm有机聚合物的水溶液。

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