Injection Water Quality Of Reservoir Flow Properties (the New Theory Of The Experimental Study And Water Quality Standards),

The method of waterfiooding in sandstone of oilfield is used widely and effectively.During the process of waterfiooding,water quality of waterfiooding will direct influence oil field exploitative effection.If injecting poor-quality water,it can directly built up oil layer leakage end face, result in injection well absorbing capacity fell, heighten injection pressure and farther aggravate heterogeneity of the reservoir, It consequently causes reservoir energy insufficiency and declines well yield.So it is important for us to evaluate the quality of waterfiooding.There are many elements of impacting reservoir and water quality ,which are related and affected each other to some extent, so the impaction research and evaluation of injection water quality to reservoir permeability physical property and exploitation effect is a complex and comprehensive research.Based on systematic and thorough evaluation idea,my paper comes up with a kind of index system and index norm which including reservoir physical property and water quality to evaluate the sandstone reservoir waterfiooding result.Adapting status of certain injection water quality towards a certain reservoir is certain and the extent of injury towards reservoir physical property at the same injecting mutiple is also sure.According to this basic theory we introduce the concept to water quality adapt degree coefficient and set up new experimental theory to' water quality towards reservoir physical property impact study and new processing approach to experimental data; Pointing to each element of assessment towards evaluation object influencing fuzziness, incorporating fuzzing mathematics and AHP theory, we present and set up reservoir physical property and injecting water quality fuzziness comprehensive evaluation means; According to the new theory we study a lot of experiments and the new processing approach to experimental data. We recognize the impacting law of water quality towards reservoir physical property and obtain the two main new norm which including suspended particle size and content.The relation and law which based on theory and adopting means between theory and experiments has value to theoretical and practical application.The way of think is distinct and the means is unique.The new law and methods are feasible and have further popularize application value.