扇三角洲沉積儲層特征與定量評價——以遼河西部凹陷某試驗區(qū)于樓油層為例
發(fā)布時間: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(地球科學(xué)版)》2017年01期
【摘要】:隨著蒸汽吞吐開采方式進(jìn)入后期,儲層非均質(zhì)性對開發(fā)效果的影響日益凸顯。以遼河西部凹陷某試驗區(qū)為例,綜合巖心、鏡下薄片、測井、分析測試等多種資料,實現(xiàn)儲層發(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,儲層非均質(zhì)性強(qiáng)烈。優(yōu)選充分反映儲層性質(zhì)影響因素的參數(shù),基于經(jīng)典的聚類分析軟件平臺,實現(xiàn)扇三角洲沉積儲層定量評價。將目的層儲層劃分為Ⅰ類、Ⅱ類、Ⅲ類和Ⅳ類4種類型,儲層分類正判率超過85%。不同類型儲層發(fā)育明顯受沉積相控制,Ⅰ類和Ⅱ類儲層多位于水下分流河道和河口砂壩的位置,而Ⅲ類和Ⅳ類儲層多位于水下分流河道間砂或前緣席狀砂的位置。不同類型儲層在轉(zhuǎn)換熱采方式時應(yīng)該區(qū)別對待。
[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:1938040
本文鏈接:http://www.sikaile.net/kejilunwen/shiyounenyuanlunwen/1938040.html
最近更新
教材專著