本文選題：下滲大氣水　切入點：溶蝕作用　出處：《成都理工大學學報(自然科學版)》2017年04期

【摘要】：探討鄂爾多斯盆地演武油田長3油層段相對優(yōu)質儲層富集規(guī)律,為同類型油藏勘探開發(fā)提供借鑒。從研究區(qū)長3油層段砂巖儲層的沉積背景、成巖作用和微觀特征入手,運用古地貌恢復等方法,對古地貌單元中鄰近不整合面的斜坡和殘丘帶的儲層發(fā)育特征進行了重點研究。結果表明研究區(qū)延長組古暴露面上發(fā)生的下滲大氣水對不整合面之下儲層進行的溶蝕改造最為強烈,是形成相對優(yōu)質儲層的關鍵因素,有利于油氣充注成藏。古地貌單元中的斜坡和殘丘帶是優(yōu)質儲層的勘探評價有利區(qū)帶。
[Abstract]:In order to provide reference for exploration and development of the same type of reservoirs, this paper discusses the relative high quality reservoir enrichment law of Chang3 formation in Yanwu Oilfield, Ordos Basin. The sedimentary background, diagenesis and microscopic characteristics of sandstone reservoirs in Chang 3 formation are studied. Using methods such as paleogeomorphic restoration, The reservoir development characteristics of slope and residual mound zone adjacent to unconformities in paleogeomorphology unit are studied. The results show that the permeable atmospheric water occurring on paleo-exposed surface of Yanchang formation in the study area is responsible for the reservoir under unconformity surface. The dissolution transformation is the strongest. The slope and residual mound belt in paleogeomorphic unit are favorable zones for exploration and evaluation of high quality reservoirs.
【作者單位】： 中國石油長慶油田分公司第十一采油廠;中國石油長慶油田分公司氣田開發(fā)處;
【基金】：中國石油天然氣股份有限公司長慶油田分公司油藏評價研究項目(2016GSKJ020103)
【分類號】：P618.13

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