高尚堡104区块二氧化碳采油技术研究

发布时间：2018-06-17 22:44

  本文选题：二氧化碳 + 采油技术　； 参考：《东北石油大学》2017年硕士论文

【摘要】：本文以油藏工程为理论依据,以油藏数值模拟为技术手段,以高尚堡104块为研究对象,获取了该油藏的地质数据,然后根据地质数据进行了分析,同时了解了目前在开发过程中采取过的措施,以及在开采过程中存在的问题,建立地质模型,进行单井历史拟合。通过大数据模拟,测试了各项参数,结合实际工作的情况,设计二氧化碳注入方案。通过对研究区块地质数据调研发现,高104-5区块的构造呈北西-南东方向展布,主体构造又被两条规模较大的高柳和高北断层切割成多个断块,其发育在高柳断层上升盘,并以其为边界的鼻状构造,其地层压力和地层温度属正常温压系统,并具有边、底水的块状构造油藏;通过数值模拟结果表明,预测期内平均日产液量总体上随二氧化碳注入量增大先增大而后略有降低,合理二氧化碳注入量为800t;预测期内平均日产液量总体上随二氧化碳注入速度增大先升高而后降低,合理二氧化碳注入速度为100t/d;预测期内平均日产液量总体上随焖井时间的延长先升高而后降低,合理焖井时间为30d;预测期内平均日产液量总体上随周期生产时间增加而降低,合理周期生产时间为180d。二氧化碳可以提高单井的采收效率,该工艺为高含水稠油水平井在开发中期,由于大量含水后,开发效率明显降低后的非常有效的措施。为了进一步对二氧化碳采油技术进行全面归纳,使该技术的应用更加简便适用,本文对二氧化碳采油工程设计方法进行了研究,通过各种评价和预测,对多种应用方案加以优选,以指导该技术在现场中的应用。同时对二氧化碳驱油技术推广进行分析,认为二氧化碳增油技术在冀东油田水平井的成功应用,为该技术在国内类似油田的推广积累了理论与现场经验。2011年项目组将这项技术成功推广应用于金马油田海26区块及沈阳采油厂的边台区块、沈625块,其中金马油田应用15井次,沈阳采油厂20井次,均收到了良好的增油控水效果。
[Abstract]:Taking reservoir engineering as theoretical basis, taking reservoir numerical simulation as technical means, taking Noble Fort 104 block as research object, the geological data of this reservoir are obtained, and then analyzed according to geological data. At the same time, the measures taken in the course of development and the problems existing in the process of exploitation are understood, the geological model is established, and the historical fitting of single well is carried out. Through the big data simulation, the parameters are tested, and the CO2 injection scheme is designed according to the actual working conditions. Through the investigation of geological data of the study block, it is found that the structure of Gao104-5 block is distributed in the north-southwest direction, and the main structure has been cut into several fault blocks by two large scale Gaoliu and Gao-Bei faults, which developed in the rising plate of Gaoliu fault. The nose structure with its boundary, the formation pressure and the formation temperature belong to the normal temperature pressure system, and has the edge, the bottom water block structure reservoir, through the numerical simulation results shows, The average daily liquid production increased firstly and then decreased slightly with the increase of carbon dioxide injection, and the reasonable amount of carbon dioxide injection was 800 t, and the average daily liquid yield increased first and then decreased with the increase of carbon dioxide injection rate in the predicted period. The reasonable carbon dioxide injection rate is 100 t / d; the average daily liquid production increases first and then decreases with the prolongation of the braising time, and the reasonable stew time is 30 days, and the average daily fluid production decreases with the increase of the period of production. The reasonable cycle production time is 180 days. Carbon dioxide can improve the recovery efficiency of single well. This process is a very effective measure for high water cut heavy oil horizontal well in the middle stage of development, because of a large amount of water cut, the development efficiency is obviously reduced. In order to sum up the carbon dioxide oil recovery technology and make the application of the technology more simple and applicable, this paper studies the design method of carbon dioxide oil recovery project, and through various evaluation and prediction, A variety of application schemes are selected to guide the application of the technology in the field. At the same time, the popularization of carbon dioxide flooding technology is analyzed, and the successful application of carbon dioxide oil enhancement technology in horizontal wells in Jidong Oilfield is considered. In 2011, the project team successfully applied this technology to Hai26 block of Jinma Oilfield and the Bian Tai Block of Shenyang Oil production Plant, Shen 625 blocks, of which 15 wells were applied in Jinma Oilfield. Shenyang Oil production Plant, 20 wells, all received a good effect of increasing oil and water control.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TE357.7
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本文编号：2032759