扇三角洲沉積儲(chǔ)層特征與定量評(píng)價(jià)——以遼河西部凹陷某試驗(yàn)區(qū)于樓油層為例
發(fā)布時(shí)間:2018-05-26 16:41
本文選題:遼河西部凹陷 + 于樓油層; 參考:《吉林大學(xué)學(xué)報(bào)(地球科學(xué)版)》2017年01期
【摘要】:隨著蒸汽吞吐開(kāi)采方式進(jìn)入后期,儲(chǔ)層非均質(zhì)性對(duì)開(kāi)發(fā)效果的影響日益凸顯。以遼河西部凹陷某試驗(yàn)區(qū)為例,綜合巖心、鏡下薄片、測(cè)井、分析測(cè)試等多種資料,實(shí)現(xiàn)儲(chǔ)層發(fā)育特征表征。研究區(qū)目的層屬扇三角洲前緣沉積,由于水下分流河道的頻繁分流改道,砂體相互切疊,儲(chǔ)層非均質(zhì)性強(qiáng)烈。優(yōu)選充分反映儲(chǔ)層性質(zhì)影響因素的參數(shù),基于經(jīng)典的聚類(lèi)分析軟件平臺(tái),實(shí)現(xiàn)扇三角洲沉積儲(chǔ)層定量評(píng)價(jià)。將目的層儲(chǔ)層劃分為Ⅰ類(lèi)、Ⅱ類(lèi)、Ⅲ類(lèi)和Ⅳ類(lèi)4種類(lèi)型,儲(chǔ)層分類(lèi)正判率超過(guò)85%。不同類(lèi)型儲(chǔ)層發(fā)育明顯受沉積相控制,Ⅰ類(lèi)和Ⅱ類(lèi)儲(chǔ)層多位于水下分流河道和河口砂壩的位置,而Ⅲ類(lèi)和Ⅳ類(lèi)儲(chǔ)層多位于水下分流河道間砂或前緣席狀砂的位置。不同類(lèi)型儲(chǔ)層在轉(zhuǎn)換熱采方式時(shí)應(yīng)該區(qū)別對(duì)待。
[Abstract]:With the development of steam huff and puff, the influence of reservoir heterogeneity on the development effect is becoming more and more prominent. Taking a certain experimental area in the western depression of Liaohe River as an example, the reservoir development characteristics can be characterized by synthesizing the data of core, thin slice under mirror, well logging, analysis and test, etc. The target layer in the study area belongs to fan delta front sedimentation. Due to the frequent diversion and overlapping of sand bodies in underwater distributary channel, the reservoir heterogeneity is strong. Based on the classical clustering analysis software platform, the quantitative evaluation of fan delta sedimentary reservoir is realized. The target reservoir is divided into four types: class 鈪,
本文編號(hào):1938040
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