【摘要】：為了揭示扇三角洲前緣厚層砂體內(nèi)部復(fù)雜結(jié)構(gòu)特征,明確其對開發(fā)過程中油水運(yùn)動(dòng)的控制作用,以儲層構(gòu)型分析為指導(dǎo),利用巖心、測井以及生產(chǎn)動(dòng)態(tài)資料,在構(gòu)型級次識別和劃分的基礎(chǔ)上,對趙凹油田趙凹區(qū)塊核桃園組三段Ⅳ3砂層組扇三角洲前緣構(gòu)型及其控油機(jī)理進(jìn)行了研究。結(jié)果表明:研究區(qū)發(fā)育3類夾層,即泥質(zhì)夾層、鈣質(zhì)夾層和泥質(zhì)砂礫巖夾層;將核桃園組三段Ⅳ3~1厚油層劃分為7個(gè)5級構(gòu)型單元;在5級構(gòu)型單元等時(shí)地層格架內(nèi),根據(jù)單一水下分流河道(或河口壩)的定性、定量識別標(biāo)準(zhǔn),確定出4級構(gòu)型單元的規(guī)模、空間形態(tài)及平面展布規(guī)律;建立了基于4級構(gòu)型的3類儲層構(gòu)型控油模式,其中縱向相變和橫向相變控油模式下的剩余油主要分布于水下分流河道中上部和非河道低滲相帶內(nèi),構(gòu)型單元內(nèi)不穩(wěn)定夾層控油模式下的剩余油主要富集在夾層下部。本次研究對改善油田開發(fā)效果具有重要意義。
[Abstract]:In order to reveal the complex structural characteristics of thick sand body in the front of fan delta and its controlling effect on oil and water movement during development, the core, well logging and production performance data are used to guide the reservoir configuration analysis. Based on the recognition and classification of configuration, the fan delta front configuration and its oil control mechanism of the third member 鈪，

本文編號：2282221