【作者】 王淑琴；

【导师】 宋考平； 赵国忠；

【作者基本信息】 大庆石油学院 ， 石油与天然气工程， 2008， 硕士

【摘要】 大庆油田为松辽盆地北部大型河流-三角洲陆相沉积,蕴含丰富的石油储集层,到目前经过近50年的开发,油田已进入高含水、特高含水的开发阶段,本文针对该阶段油田开发的需要,对聚驱后剩余油的分布规律进行了研究。首先参考大庆油田各区块沉积特征,利用相控建模原理建立了河流-三角洲相非均质砂岩油藏概念模型,然后对这些模型进行了水驱及聚驱的数值模拟。并对模拟结果进行了总结分析,通过分析剩余油分布的特征,找出剩余油的形成原因,最后对剩余油分布的影响因素,即沉积微相、断层、韵律以及聚合物的粘度和注入速度等进行了研究,总结出聚驱后剩余油的主要分布区域。更多还原

【Abstract】 DaQing oil field is a large scale river-delta sedimentary facies in the north of SunLiao plain, and imply abundant oil reservoir.After close 50 years’s development ,it have been in its hige or extra high watercut stage. Be aimed at the need of this development stage,the taxt studied the regular distribution of remaining oil after polymer flooding.At first ,according to the geologic feature of DaQing oil field,we built heterogenetic concept models of rever-delta facies controlled by microfacies.Then we simulated the process of water flooding and polymer flooding in the models.And analysised and conclude the calculation result.t.Based on analyzing character of remained oil,we found the reason of remaining .And we studied the influence to the distribution of remaining oil from sedimentary micofacies,faults,rhyhm and the viscosity and consitration of polymer. At last,the regular areas of remaining oil were found.更多还原