水力喷射压裂参数研究

发布时间：2018-06-19 22:52

本文选题：水力喷射压裂 + 室内实验　；参考：《西南石油大学》2015年硕士论文

【摘要】：水力喷砂射孔压裂技术是集合了射孔、压裂、自动隔离于一体,区别于传统的新型增产技术。它适用于低渗透油藏直井、水平井改造,能较为准确地在预定层位造缝,无需机械封隔,自动水动力封隔,成本低、节约时间、施工安全可靠。2001年哈里伯顿公司率先利用了水力喷砂射孔压裂技术对低渗透油藏进行了增产改造。该技术是利用高速高压携砂压裂液对井壁进行射孔,打通地层与井筒间的通道,随后加大压裂液的流量并使其进入缝隙并继续增压扩展,从而在地层中形成填砂裂缝。在美国、加拿大等国家,已有大量的油井运用水力喷射压裂技术进行了处理,产量得到明显提高。我国也积极开展了对水力喷砂射孔压裂方面的研究。本文根据理论研究,确定了试验研究的内容和相关的实验设备。具体对喷嘴材料、射流速度、磨料浓度和排量等参数进行实验,并对实验结果进行分析和总结,也对喷射压裂阶段参数进行了设计,最后根据水力喷射压裂参数的相关变化规律,制作了计算模板,便于现场应用。长久以来,人们对于水力喷射压裂工艺已经运用很多,如何更好地对工艺参数进行优化配比,还有待于更多的研究和实践。本文研究的目的和意义就是通过模拟实验,更好地了解影响水力喷砂射孔压裂的因素,确定出最合理的参数,更好地为现场施工提供参考依据,从而达到增产的目的,现场试验证实了室内实验研究和设计方案是可行的。
[Abstract]:Hydraulic sand blasting perforation fracturing technology is a new type of production increasing technology, which combines perforation, fracturing and automatic isolation. It is suitable for the reconstruction of vertical wells and horizontal wells in low permeability reservoirs. It can make fractures accurately at predetermined layers without mechanical sealing, automatic hydrodynamic sealing, low cost and time saving. In 2001, Halliburton Company took the lead in making use of hydraulic sand blasting and perforation fracturing technology to increase production and reconstruct low permeability reservoir. This technique uses high speed and high pressure sand carrying fracturing fluid to perforate well wall, open the passage between formation and wellbore, then increase the flow rate of fracturing fluid and make it enter the crevice and continue to expand under pressure, thus forming sand filling fracture in formation. In the United States, Canada and other countries, a large number of wells have been treated with hydraulic injection fracturing technology, the production has been significantly improved. The research on hydraulic sand blasting perforation fracturing has also been carried out actively in China. According to the theoretical research, the content of the experimental research and related experimental equipment are determined in this paper. The parameters such as nozzle material, jet velocity, abrasive concentration and displacement are tested, and the experimental results are analyzed and summarized. The parameters of jet fracturing stage are also designed. Finally, according to the related variation rule of hydraulic jet fracturing parameters, a calculating template is made, which is convenient for field application. For a long time, the hydraulic jet fracturing process has been used a lot, how to better optimize the process parameters, still needs more research and practice. The purpose and significance of this study is to better understand the factors affecting hydraulic sand blasting perforation fracturing, to determine the most reasonable parameters, and to provide reference basis for field operation, so as to achieve the purpose of increasing production. The field test proves that the indoor experimental research and design scheme is feasible.
【学位授予单位】：西南石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE357

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