【作者】 安明飞；

【导师】 卓兴家；

【作者基本信息】 大庆石油学院 ， 油气田开发工程， 2008， 硕士

【摘要】 目前,我国东部油田大多数已经进入开发中后期,含水在90%以上,同时大多数区块由原来的主力油层向二类、三类油层转化。面对当前国内石油的供需矛盾,如何高效的或更大程度的开发该类油层显得十分重要。针对以上问题本文以升平油田升132区块为研究区域,运用ECLIPSE数值模拟软件对本区剩余油分布进行了精细研究,并针对该区块剩余油分布特征进行了加密方案调整。本论文根据升132区块储层渗透率低、地层水水侵严重和生产能力低的地质开发特征,利用油田地质、测井、测试和生产动态等资料,深入开展油藏描述和剩余油分布规律的研究工作。本文应用测井解释方法与数值模拟方法结合的新方法来研究剩余油分布,取得了较好的效果。数值模拟研究中,针对本区块油藏特点,运用ECLIPSE数值模拟软件建立了符合油藏实际的三维地质模型。根据生产历史,对全区地质储量、产油量、产水量和含水率等各项开发指标进行了历史拟合,拟合程度基本符合技术要求。通过对各项开发指标的综合分析可知,升132区块剩余油主要分布在构造低部位、内部低井网控制区、断层附近及由于地层非均质性导致注入水未波及到和波及程度低的地区。进一步根据该区块剩余油分布特征,编制了合理的加密调整方案。并运用ECLIPSE数值模拟软件模拟预测了各个方案,通过综合对比分析,优选出最佳调整方案。这为大庆外围低渗透油田的高效开发、在开发中后期如何提高最终采收率方面积累了宝贵的经验和技术。更多还原

【Abstract】 Nowadays, most of the oilfields in East of China have come to the middle and later development stage, the water cut of which have reach over 90%, meanwhile, most blocks have changed from major reservoirs to minor reservoirs. Facing with the demand and supply antinomy in domestic oilfield, the problem how to develop such reservoir efficiently becomes very important to us.Aiming at the problem above, the paper takes Sheng block 132 of Shengping oilfield as research area, use ECLIPSE numerical simulation software to research the distribution of the remaining oil in this block, and adjust the infill well project.According to the geological characteristics of the low permeability, severe water intrusion, and low production ability of the reservoir, using some geological, well test, DST and dynamic production resources, this paper researches the reservoir description and remaining oil detection. This paper synthesizes well test and numerical simulation methods to research the distribution of the remaining oil, in the numerical simulation, Aiming at the reservoir characteristic in this block, ECLIPSE is used to build 3D geological model in accord with the geological fact of the reservoir, some development indexes such as field geological reserve, field oil production, field water production, and field water cut are history matched according to the production history, the matching degree basically comes to the technique require, after analyzing all the development indexes we know that, the remaining oil mainly distributes in the lower construction part, low well network control area, near the fault and in the unswept or less swept area because of the antistrophic of the reservoir. Some rational adjusting projects are made, and after using ECLIPSE numerical simulation software to predict all the projects, and compare with each of them, the best one is chosen out, which accumulates valuable experience and technique on how to develop efficiently and how to enhance oil recovery in the later development stage for the low permeable reservoir around Daqing oilfield.更多还原