商河油田商二区注入水与储层配伍性研究

针对商河油田商二区注水并储层注入能力下降问题．通过室内静态评价实验以及岩心流动实验．研究了该油田注入水与储层的配伍性。结果表明：商二区储层注入水与地层水混合后有结垢趋势．注入水与储层原油配伍性较好，与储层岩石接触后无粘土膨胀现象；注入水水质指标中细菌含量、固体颗粒含量较大，引起渗透率下降，建议油田在注水过程中加强防垢措施，改善水质。

Compatibility of Water Injection with Reservoir of Block Shang 2 in Shanghe Oilfield

In consideration of the problems of water injectability decrease in Block Shang 2 of Shanghe Oilfield, the compatibility of injected water with reservoir in the oilfield is studied through laboratory static evaluating test and core flowing test. The result shows that in Block Shang 2 the injected water has the tendency of scaling and better compatibility crude oil after mixing with formation water and without clay swelling after contacting with reservoir rock. The contents of bacteria and solid particles are higher in the injected water quality guideline, by which permeability reduction is caused. Suggestion is made for precaution of scale prevention in water injection process so as to improve the injected water quality.