【作者】 赵玉武；

【导师】 陈涛平；

【作者基本信息】 大庆石油学院 ， 油气田开发工程， 2003， 硕士

【摘要】 低渗透油田存在储层物性差，非均质性强、平均孔喉半径小、比表面大、毛管压力高、渗透率低以及开发难度较大等问题，因此在进行低渗透油田开发前，必须对油层的地质特征和油层物性等有充分的认识，对开发方案进行反复论证，采取相应的增产增注措施，以进一步提高低渗透油田的动用程度。本文针对以上情况，结合布木格油气田的地质特征，通过实验研究的方法，测定了布木格油田低渗岩心拟启动压力、低渗透岩心的油水相对渗透率、低渗透岩心的气油相对渗透率，研究了不同气体类型(天然气、二氧化碳、氮气)，不同气水段塞比对水气交替注入提高布木格油气田采收率的影响。 最后提出了利用气驱(特别是二氧化碳)对提高该油田的开采效果具有很好的作用，这些研究的开展对提高布木格油气田的开发效果具有重要的指导意义。更多还原

【Abstract】 The existence of low permeability, bad reservoir property, strong inhomogercity, small pore throat by specific surface and the high capillary forces leads to the great difficulties in developing a low permeable field. The geological property of the formation and the characteristic of the reservoir must be known precisely before exploit, so that the corresponding stimulation method could be applied to the field, and thus to enhance the recovery of the reservoir, concerned the condition above and combined with the geological properties of the Bumuge field, and by the means of experiments, the pseudo-starting pressure, the relative permeability of water and oil, the relative permeability of oil and gas was measured, and the influence of gas type (natural gas, CO2, N2) and the slug ratio of oil and gas on the recovery of Bumuge field under alternation injecting of water and gas was studied.The great effect of gas drove (especially CO2) on the enhance reqovery was concluded. And all these researches have a grand guiding influence on the enhancement of the development result in Bumuge field.更多还原