伊通盆地莫里青油田双二段隔夹层研究  

Study on Interlayers of the 2nd Mumber of Shuangyang Formation in Moliqing Oilfield,Yitong Basin

作　　者：吕昕[1] 姜素华[1] 孟宁宁[1] 袁勇[1] 于涛[2] 

机构地区：[1]中国海洋大学海洋地球科学学院,青岛266100 [2]山东科技大学地球科学与工程学院,青岛266590

出　　处：《科学技术与工程》2014年第32期183-187,196,共6页Science Technology and Engineering

摘　　要：隔夹层作为在渗透层内或层间分布的一种相对非渗透性岩层,对流体的垂向渗流和水平渗流具有重要影响。伊通盆地莫里青油田双二段储层内油水分布较为复杂,油水同层现象普遍,为探索隔夹层对该地区储层内油水分布的影响,对工区内约200口井的地质、测井等资料进行处理;详细研究了分布于研究区的隔夹层。首先通过岩心观察和测井曲线特征的分析,明确该区主要岩性为砂砾岩;并说明了研究区的隔夹层类型和成因,将其划分为泥质隔夹层、灰质隔夹层和物性隔夹层三类。然后对隔夹层的平面和剖面进行分析研究,分别描述了隔层和夹层的分布特点;并且详细的解释了该区域隔夹层的剖面特征,认为该油藏隔层平面分布趋势与物源方向基本一致,隔层分布稳定,夹层比较发育但连续性较差。通过分析认识储层隔夹层特征,对该油田采收率的提高及中后期的剩余油分布研究具有重要的指导意义。As a relatively impermeable rock distributed between the permeation layer or layers,interlayers have a significant impact on the vertical and horizontal flow of fluid seepage. Oil-water distribution is more complicated,oil-water layers is more common in the reservoir of the 2nd mumber of Shuangyang formation,Moliqing oilfield,Yitong Basin. In order to explore the impact of interlayers to the oil and water,it is necessary to process the well logging data of 200 wells and analyze the interlayer which distributed in the research area detailedly. Firstly,through the core observation and analysis of the characteristics of well logs,the lithology of the area is identified clearly,and the interlayer's types and causes are described. The interlayers is divided into three categories: muddy intercalation,calcicolous intercalation and petrophysical intercalation. Then the interlayer's plane and profile are analyzed,and the distribution of barrier bed and intercalated bed are described. A detailed explanation of the profile characteristics of interlayers in the region is given,and find that the barrier bed plane distribution trend is almost consistent with the source direction. Barrier distribution is stabled,and intercalated beds develop a bit but the continuity is poor. The analysis of the characteristics of interlayers will make a great significance to improve the oil recovery and study the residual oil distribution.

关 键 词：莫里青油田 双二段 隔夹层识别 分布特征 砂砾岩 

分 类 号：TE122.23[石油与天然气工程—油气勘探]