本文選題：注水開發(fā)油田 + 低阻力流道　； 參考：《東北石油大學》2015年碩士論文

【摘要】：注入水沿低阻力流道做低效循環(huán)或無效循環(huán),使得油井產(chǎn)量下降,含水上升快。為改善注水開發(fā)效果,達到穩(wěn)油控水的目的,有必要對低阻力流道進行識別和評價。本文針對H區(qū)塊低滲透裂縫性油藏目前存在問題,運用動態(tài)分析方法,進行含水率分級,確定出39口特高含水油井;通過動態(tài)劈分方法,確定出特高含水層位;運用相關(guān)性分析確定高含水井的主要來水方向和來水層位。運用壓力指數(shù)(PI)決策技術(shù)識別選出19口低阻力流道井。利用多指標綜合評判方法對H區(qū)塊103口油井、27口水井進行低阻力流道綜合評判識別,確定出56口油井和12口水井存在低阻力流道,并確定了井間的41個低阻力流道層位。綜合動態(tài)分析、PI值法和多指標綜合評判方法,給出了H區(qū)塊低阻力通道識別結(jié)果,并總結(jié)出低阻力流道的分布規(guī)律。通過對H區(qū)塊儲層沉積微相、油層非均質(zhì)性和裂縫的發(fā)育情況剖析,確定了低阻力流道的主要控制因素。分析了儲層沉積相等特征,計算了油層的滲透率級差、滲透率變異系數(shù)和突進系數(shù),剖析了微地震、示蹤劑前緣監(jiān)測等測試資料,評價了儲層特征、油層非均質(zhì)性、裂縫發(fā)育情況等對低阻力流道形成及分布的影響。本文將動態(tài)分析法、壓力指數(shù)(PI)決策技術(shù)和多指標評判三種方法結(jié)合,對低阻力流道進行識別與判定,使得識別結(jié)果更可靠,所得成果對油田開發(fā)具有指導意義。
[Abstract]:The injection water flows along a low resistance channel for inefficient or ineffective circulation, resulting in a decrease in oil well production and a rapid rise in water cut. In order to improve the effect of water injection development and achieve the purpose of stabilizing oil and controlling water, it is necessary to identify and evaluate the low resistance channel. In view of the existing problems of low permeability fractured reservoirs in H block, 39 super high water cut oil wells are determined by using dynamic analysis method and water cut classification, and the super high aquifer position is determined by dynamic splitting method. The main direction and horizon of high water cut wells are determined by correlation analysis. The pressure index (Pi) decision technique was used to identify 19 low resistance flow wells. In this paper, low resistance passage is identified in 103 oil wells and 27 wells in H block by multi-index comprehensive evaluation method. It is determined that 56 wells and 12 wells have low resistance channel, and 41 low resistance channel layers between wells are determined. By synthesizing the dynamic analysis of Pi value method and multi-index comprehensive evaluation method, the identification results of low resistance channel in H block are given, and the distribution law of low resistance channel is summarized. Based on the analysis of sedimentary microfacies, reservoir heterogeneity and fracture development in H block, the main controlling factors of low resistance channel are determined. The characteristics of reservoir sedimentation are analyzed, the permeability difference, permeability variation coefficient and penetration coefficient are calculated, the test data such as micro-earthquake and tracer front monitoring are analyzed, and the reservoir characteristics and reservoir heterogeneity are evaluated. The influence of fracture development on the formation and distribution of low resistance passage. In this paper, the dynamic analysis method, pressure index PI-based decision technique and multi-index evaluation are combined to identify and judge the low resistance flow channel, which makes the identification result more reliable, and the obtained results are of guiding significance for oilfield development.
【學位授予單位】：東北石油大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TE357.6

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本文編號：2039062