扶余油田类稠油开发技术试验研究

发布时间：2018-06-21 21:55

本文选题：采油速度 + 弱稠油降粘　；参考：《东北石油大学》2015年硕士论文

【摘要】：吉林矿区扶余油田扩边区块存在部分类稠油区块,注水效果较差。但由于扶余油田属于正韵律油藏,热采虽在一定程度上能提高采油速度,但气窜现象时有发生,且比较严重,存在严重的安全隐患,而这部分区块由于水油流度比大,依靠单纯注水开发容易发生明显的粘性指进,使面积波及系数大幅度降低,注水驱油效果差,为进一步提高这部分区块的注水开发效果,通过在扶余油田东17站扩边区块的技术研究及现场试验,得出稠油降粘技术能够有效解决扶余油田类稠油区块注水问题及减缓矛盾,该技术的成功应用,为扶余油田扩边区块注水开发提高采收率提供有效的技术支撑。本文通过对类稠油低效开发区块储层和开发特征入手,先分析影响区块开发效果具体因素,针对这些因素选取降粘对策,然后再对类稠油降粘机理的深度剖析,通过试验对比选取合适的降粘药剂,以及后期对试验区进行了一系列的方案设计,最终选取最适合油田类稠油开发的技术对策。并从中得到了有利于油田类稠油区块开发的相应结论,为以后油田类稠油开发奠定了基础,具有重要的指导意义。
[Abstract]:There are some heavy oil blocks in the expanded edge block of Fuyu oilfield in Jilin mining area, and the water injection effect is poor. But because Fuyu oil field belongs to positive rhythm reservoir, thermal recovery can improve oil recovery speed to some extent, but gas channeling occurs frequently, and it is serious, which has serious hidden danger of safety, and this part of block is due to large water and oil mobility ratio. Depending on the pure water injection development, it is easy to produce obvious viscous fingering, so that the area sweep coefficient is greatly reduced, and the water flooding effect is not good. In order to further improve the water injection development effect in this part of block, Based on the technical research and field test of the expanded side block at East 17 Station of Fuyu Oilfield, it is concluded that viscous oil viscosity reduction technology can effectively solve the water injection problem and alleviate the contradiction in the heavy oil block of Fuyu Oilfield, and the successful application of this technology can be achieved. It provides an effective technical support for waterflooding development and oil recovery improvement in the expanded edge block of Fuyu Oilfield. In this paper, by analyzing the reservoir and development characteristics of the low efficiency development block of heavy oil, the specific factors affecting the development effect of the block are analyzed, and then the viscosity reduction countermeasures are selected in view of these factors, and then the depth analysis of the viscosity reduction mechanism of the similar heavy oil is made. The suitable viscosity reducing agent is selected through the experiment, and a series of scheme design of the test area is carried out in the later stage. Finally, the most suitable technical countermeasures for the development of the oilfield heavy oil are selected. The corresponding conclusions are obtained, which are beneficial to the development of heavy oil blocks in oilfields, which will lay a foundation for the development of heavy oil fields in the future and have an important guiding significance.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE345

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