张娜 柳成志

摘 要：首先通过单井相分析、连井相分析和平面相分析对喇嘛甸油田的沉积微相进行分析，将研究区分为水下分流河道微相、远砂坝微相、席状砂微相和河口砂坝微相四种沉积微相。研究喇嘛甸油田储层的物性、岩性以及含油性，分析了储层非均值对剩余油的影响。在此基础上，研究了喇嘛甸油田剩余油的影响因素，确定剩余油的分布规律，并提出相应的开采措施。通过以上研究可以得出：研究区的剩余油主要分布在非主体席状砂发育的部位，其次是表外储层，最后是水下分流河道和主体席状砂等物性较好的砂体之中。

关 键 词：三类油层;三元聚合驱;剩余油

中图分类号：TE 357 文献标识码： A 文章编号： 1671-0460（2015）06-1392-03

Study of Asp Flooding Residual Oil Distribution Regularity of Class 3

Reservoir in the Northeast Block of Lamadian Oilfield

ZHANG Na，LIU Cheng-zhi

（Northeast Petroleum University， Heilongjiang Daqing 163318，China）

Abstract： The sedimentary microfacies of lamadian oilfield was analyzed by single well facies analysis， phase analysis and so on， the research area was divided into four sedimentary microfacies including underwater distributary channel microfacies， far sand dam microfacies， sheet sand microfacies and river mouth bar microfacies. Lamadian oil field reservoir physical property， lithology and oil content were studied; impact of reservoir heterogeneity on the remaining oil was analyzed. The influence factors of remaining oil were studied to determine the remaining oil distribution law， and the corresponding development measures were put forward. The above study shows that remaining oil in the study area is mainly distributed in the main part of the development of sand sheet， followed by the untabulated reservoir， the last is the underwater distributary channel sand sheet and sand body with good property.

Key words： Class 3 reservoir ternary;Polymer flooding;Remaining oil distribution

1 喇北東块的沉积相

1.1 研究区沉积相

本文以L8-JP182井为例，由于该单井离物源较远，沉积物供给不足，主要发育三角洲前缘亚相。沉积微相[1]中水下分流河道最发育，夹有支流间湾、河口砂坝、远砂坝等沉积。岩性以粉砂岩、泥质粉砂岩为主，其次为支流间湾的泥岩及粉砂质泥岩，泥岩主要呈灰色、浅灰色。测井曲线主要以漏斗形为主，夹有少量钟形。

1.2 联井相分析

根据喇北三类油层的实际情况，本文选择一条东西连井剖面进行描述。

过L8-2437～L9-2437的连井剖面，沉积亚相以三角洲前缘亚相为主，发育有水下分流河道、支流间湾、河口砂坝和远砂坝等沉积微相。从剖面上可以看出砂体总体显示从西向东方向变厚，纵向上砂体总体显示由下向上变厚的趋势，砂体连通性相对较好。……