新型压裂液体系在吐哈油田的研究与应用

发布时间：2018-06-22 10:17

本文选题：新型压裂液 + 低伤害　；参考：《西安石油大学》2015年硕士论文

【摘要】：压裂液是压裂技术的重要组成部分,是决定压裂成败的关键,随着时代的发展,压裂液体系也经历了油基压裂液,聚合物交联压裂液,泡沫压裂液和粘弹性表面活性剂压裂液四个发展阶段的变革。而高效,低伤害,低成本,是压裂液技术发展的方向,也是当下研究压裂液的首要问题,本文结合目前国内外压裂液体系的发展情况以及现在压裂液存在的问题。针对这些问题出现了一种新型压裂液体并在吐哈油田现场应用,通过对国外高效交联压裂液和聚合物压裂液体系的性能对比研究,分析吐哈油田压裂液对储层和支撑裂缝导流能力伤害原因,确定了低伤害压裂液体系的研究重点:降低残渣含量,降低滤失量,改善破胶性能,提高压裂液与储层及地层流体的配伍性。通过大量的理论分析和室内实验,优选出适合吐哈油田储层特点的新型低伤害压裂液体系,现场试验结果表明,与常规压裂液相比,新型压裂液体系对低渗透储层的压裂措施更有效。
[Abstract]:Fracturing fluid is an important part of fracturing technology and the key to the success or failure of fracturing. With the development of the times, fracturing fluid system has also experienced oil-base fracturing fluid, polymer cross-linked fracturing fluid. Development of foam fracturing fluid and Viscoelastic Surfactant fracturing fluid. But high efficiency, low damage and low cost are the development direction of fracturing fluid technology, and also the primary problem of the current research on fracturing fluid. This paper combines the development of fracturing fluid system at home and abroad and the existing problems of fracturing fluid. In order to solve these problems, a new kind of fracturing fluid was developed and applied in the field of Tuha Oilfield. By comparing the properties of high efficiency cross linking fracturing fluid and polymer fracturing fluid system abroad, This paper analyzes the causes of damage of fracturing fluid to reservoir and supporting fracture conductivity in Tuha Oilfield, and determines the research emphases of low damage fracturing fluid system: reducing residue content, reducing filtration amount, improving gel breaking performance. The compatibility of fracturing fluid with reservoir and formation fluid is improved. Through a large number of theoretical analysis and laboratory experiments, a new low damage fracturing fluid system suitable for the reservoir characteristics of Tuha Oilfield is selected. The field test results show that, compared with the conventional fracturing fluid, The new fracturing fluid system is more effective for fracturing of low permeability reservoirs.
【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】：TE357.12

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