姬塬油田低渗透油藏堵水调剖技术完善

发布时间：2018-04-23 14:12

本文选题：深度调剖 + 弱凝胶　；参考：《西安石油大学》2015年硕士论文

【摘要】：针对姬塬油田调剖堵水的种类繁多,堵剂体系缺乏合理评价堵剂与调堵效果的标准等问题。对采油八厂常用的三种调堵体系按照注入性,封堵性,选择封堵性三方面评价指标开展室内试验评价与现场评价,分析得到以下认识。1、通过对弱凝胶、凝胶颗粒、无机凝胶性能的评价认识到现有堵剂在低渗透油藏没有哪个堵剂有明显的优势,各个堵剂各有优缺点,堵剂的复合应用较为重要,利用堵剂的段塞组合取长补短达到调剖的效果。下一步建议将复合堵剂每个段塞所起作用的机理,贡献率的大小研究清楚,最终科学的利用复合堵剂。2、低渗特低渗油藏调堵,油井产能是制约低渗油藏调堵效果的关键之一,因此堵通结合的技术——压裂是低渗油藏值得重点关注方法。下一步应重点解决什么类型的井需要作提高产能措施以及提高产能的增产规模大小。综合来看,在目前尚无适用于低渗透油藏的堵剂体系下的情况下,优选调堵井,采用科学合理的段塞组合,对适合的井组采用堵通结合的调剖—改造复合技术措施能大幅提高采油八厂调剖工艺效果,达到较好的增产效果。
[Abstract]:In view of the wide variety of profile control and water shutoff in Jiyuan Oilfield, the system of plugging agent is lack of standard to evaluate the plugging agent and the effect of plugging. According to the injection, plugging, plugging and plugging performance of the three commonly used plugging systems in the eighth Oil recovery Plant, the laboratory test and field evaluation were carried out according to the three evaluation indexes of injection, plugging and plugging. The following understanding was obtained: 1. Through the analysis of weak gels and gel particles, The evaluation of inorganic gel performance shows that none of the existing plugging agents has obvious advantages in low permeability reservoirs, each plugging agent has its own advantages and disadvantages, and the composite application of plugging agent is more important. The effect of profile control is achieved by using slug combination of plugging agent to complement each other. In the next step, it is suggested that the mechanism and contribution rate of each slug of compound plugging agent should be studied clearly. Finally, using compound plugging agent. 2, adjusting plugging in low permeability and ultralow permeability reservoir, well productivity is one of the key factors restricting the plugging effect of low permeability reservoir. Therefore, fracturing is an important method for low permeability reservoirs. The next step should be to solve the problem of which types of wells need to improve productivity and the scale of production increase. Generally speaking, in the absence of a plugging agent system suitable for low permeability reservoirs at present, a scientific and reasonable slug combination is adopted to select and adjust the plugging wells. The effect of profile control and profile control in No. 8 oil production plant can be greatly improved by adopting the combined technology of profile control and modification for suitable well groups, and the effect of increasing production can be achieved.
【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】：TE348

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