本文關(guān)鍵詞： 流花油田 礁灰?guī)r儲層 微觀性質(zhì) 驅(qū)替特征 微觀孔隙結(jié)構(gòu)　出處：《西南石油大學學報(自然科學版)》2017年06期 　論文類型：期刊論文

【摘要】：與碎屑巖儲層相比,礁灰?guī)r儲層的微觀孔隙結(jié)構(gòu)復雜且具有油濕性,其水驅(qū)油機理主控因素尚不明確。采用"巖芯掃描電鏡、鑄體薄片、壓汞、潤濕性"等靜態(tài)資料與"微觀驅(qū)替及巖芯驅(qū)替實驗"等動態(tài)測試相結(jié)合的分析方法,建立了"靜態(tài)數(shù)據(jù)動態(tài)化"的滲流機理研究新方法,明確了礁灰?guī)r儲層的微觀性質(zhì)與流體驅(qū)替特征的關(guān)系以及不同孔隙結(jié)構(gòu)的剩余油分布規(guī)律。研究表明,流花礁灰?guī)r儲層微觀孔隙結(jié)構(gòu)可分為4類,其中,Ⅰ、Ⅱ、Ⅲ類為有利儲層,具有低排驅(qū)壓力、低退汞效率及強非均質(zhì)性的特點,儲層滲流能力與儲層類型關(guān)系密切,主控因素有儲層類型、孔喉半徑比和潤濕性3個關(guān)鍵因素。水驅(qū)前后的油水分布特點及不同巖芯驅(qū)替動態(tài)與驅(qū)替效果受儲層微觀性質(zhì)控制并有直接的相關(guān)性。
[Abstract]:Compared with clastic reservoir, the pore structure of reef limestone reservoir is complex and oil wettability, and the main controlling factors of water flooding mechanism are not clear. By combining the static data such as wettability "with the dynamic test of micro-displacement and core displacement", a new method for studying the seepage mechanism of "static data dynamic" is established. The relationship between the microcosmic properties of reef limestone reservoir and fluid displacement characteristics and the distribution of residual oil with different pore structures are clarified. The study shows that the micro pore structure of Lihua reef limestone reservoir can be divided into 4 categories, among which, I. Class 鈪，

本文編號：1457943