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高压低渗油藏层间精细挖潜的做法及认识

Several Practices and Opinions of Interlayer Fine Potential Tapping in High Pressure and Low Permeability Reservoir
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摘要 文东油田文13西块位于东濮凹陷中央隆起带文留构造东翼,目前已进入高含水开发后期。受湖泊-三角洲沉积影响,储层层间非均质性严重,层间动用差异大。为此,1992年开始进行层系细分加密调整,取得了较好的开发效果,2000年以后,层系打乱,油水井大段合注合采,开发效果逐年变差,针对开发中存在的主要问题,2007年在剩余油研究的基础上,通过压缩开发层段,缩小开发井距,井网重组等,开发对象向二类层转移。 The west block Wen 13 of Wendong oil field is located at the East of Wenliu structure in central uplift zone of Dongpu depression.It' s currently entering into the late development period with high water-cut.Affected by the lakedelta deposition,the interlayer heterogeneity of the formations is serious,and the interlayer producing reserves are different.Therefore,the subdivision and infilling -adjustment of layer series was carried out in 1992,which achieved good development effects.After the year 2000,the series of strata were disarranged,massive commingled injection and production were applied in the oil and water wells,and the development results became worse year by year.In view of the main problems existed in development and based on the remaining oil research,the exploited object was transfterred to the 2nd class layer in 2007 by compressing the development layer,reducing the well spacing,rearranging the well pattern and so on.
出处 《中国西部科技》 2010年第5期1-2,18,共3页 Science and Technology of West China
关键词 低渗油藏 注水开发 高含水期 细分层系 剩余油 采收率 Low permeability pools Water flooding development High watercut stage Stratum subdivision Residual oil Recovery factor
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  • 5梁文福,吴晓慧,孙晓军.利用周期注水方法改善喇嘛甸油田高含水后期开发效果[J].大庆石油地质与开发,1999,18(5):23-24. 被引量:24

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