姚店油田剩余油潜力研究及评价

发布时间：2018-05-09 07:13

本文选题：剩余油潜力评价 + 储层　；参考：《西安石油大学》2015年硕士论文

【摘要】：国内外各大油田经过十多年的注水开发,大都进入高含水,高采出程度阶段。我国老油田已经进入高含水中后期,且新区块地质条件复杂、勘探难度大,如何稳步开采老油田成为亟待解决的问题,为此有必要针对油田剩余油分布及挖潜方向进行深入研究。本论文通过对国内外油田开发中后期剩余油分布评价方法进行梳理,依据油田开发地质理论及姚店油田的开发现状,明确了当前油田生产和开发中存在的问题。在此基础上,采用宏观地质构造对比与微观储层特征分析相结合的研究方法,对区块的资源储量丰度、单井控制储量进行理论计算与分析,同时标定了各层可采储量。最后,根据剩余油富集程度,划分出一、二、三类潜力区域。研究结果表明:一、二类剩余油潜力区可采储量很大,富集规模和程度集中,此部分区域是将来油田挖潜的最优对象;第三类剩余油潜力区特点是分布面积很大,占到整个姚店区块叠合面积的77%,但是富集程度较小,挖潜潜能较小,为该区块后期剩余油挖潜的攻坚区域。本次剩余油潜力评价,指出了姚店油田未来的开发及挖潜方向,同时对鄂尔多斯盆地低渗透、低丰度、低饱和度及高含水油藏剩余油研究评价方法具有一定的指导意义。
[Abstract]:After more than ten years of water injection development, most oil fields at home and abroad have entered the stage of high water cut and high recovery. The old oil fields in our country have entered the middle and late stage of high water cut, and the geological conditions of the new block are complicated and the exploration is difficult, so how to develop the old oil fields steadily becomes an urgent problem to be solved. Therefore, it is necessary to further study the distribution of remaining oil and the direction of tapping potential. Based on the theory of oilfield development geology and the present development situation of Yaodian oilfield, the problems existing in the production and development of oil fields at present are clarified by combing the evaluation methods of remaining oil distribution in the middle and late stages of oilfield development at home and abroad. On the basis of this, using the research method of combining macroscopic geological structure correlation with microcosmic reservoir characteristic analysis, theoretical calculation and analysis of resource reserves abundance and single well controlled reserves of blocks are carried out, and recoverable reserves of each layer are calibrated at the same time. Finally, according to the degree of remaining oil enrichment, the potential regions of one, two and three types are divided. The results show that: first, the recoverable reserves of the second type remaining oil potential area are very large, the enrichment scale and degree are concentrated, this part of the area is the best object for tapping the potential oil fields in the future, and the third type remaining oil potential area is characterized by the large distribution area. It accounts for 77% of the overlap area of the whole Yao Dian block, but the enrichment degree is small and the potential of tapping potential is small, which is a key area for tapping the remaining oil potential in the late stage of the block. This evaluation of residual oil potential points out the future development and tapping direction of Yaodian Oilfield and has certain guiding significance for the research and evaluation of remaining oil in low permeability, low abundance, low saturation and high water cut reservoirs in Ordos Basin.
【学位授予单位】：西安石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE327

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