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Method and composition for reducing the permeability of a Zone of high permeability in an oil Reservoir
Method and composition for reducing the permeability of a Zone of high permeability in an oil Reservoir
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机译:降低油藏中高渗透率区渗透率的方法和组合物
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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).
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