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- Low permeability reservoir development is a technical challenge in China. 摘要低渗气藏的开发已成为我国气藏开发所面临的一个技术挑战。
- And low permeability reservoir is slower than mid-high permeability reservoir in pressure wave propa... 低渗透油藏比中高渗透油藏的压力波传播速度慢。
- Bonan oilfield is a typical high pressure and low permeability reservoir in Chinese low permeability oilfield. 高压低渗油田油井堵水技术难度大 ,机械卡封成功率低。
- The generation mechanism of CO during fracturing stimulation in low permeability reservoir is first studied in this paper. 首次对低渗透油田压裂增产过程中一氧化碳气体生成机理进行了综合研究。
- Fingering often occurs in waterflood development low permeability reservoir because of non-Darcy flow, which is weakened with formation dip increasing. 结果表明，由于非达西渗流的影响，注水开发时容易发生指进现象，而地层倾角的增大可以削弱指进；
- During well testing in low permeability reservoir, the produced fluids could not flow out of the wellbore, and there occurred a slug flow at wellbore. 在低渗透油田的测试过程中，井筒中的流体常因流不出地表而在井筒中发生段塞式流动，使流动与恢复测试阶段的井筒压力均上升。
- It is an effective way to exploit low permeability reservoir, difficult-to-produce reserves and remaining oils with complex wells. 复杂结构井技术是开发低渗透油藏、难采难动用储量和挖掘剩余油行之有效的手段。
- Foundation of stable production of low permeability reservoir,in Bonan Oilfield,is undermined by incompletion of injection-production pattern. 渤南油田低渗透油藏注采井网二次不完善,削弱了油田稳产基础。
- Influenced by effect of bore hole afterflow,a long closes time is needed for pressure build up test in low permeability reservoir. 受井筒续流效应的影响,低渗透油藏的压力恢复试井需要较长的关井时间。
- The study shows that the swelling clay is the key factor that affects considerably the percolation feature of low permeability reservoir. 注入流体矿化度的差异和注入方式的变化,对粘土膨胀和抑制膨胀作用亦有影响。
- Nonsteady flow method is usually used to conduct water drive test for low permeability reservoir,but it is less accurate and cannot meet production need. 通常对于低渗储层进行水驱油测试采用非稳定流方法,但该测试方法准确性较差,不能满足生产要求。
- With the further exploration of Tuha basin,one difficult problem is logging interpretation and reservoir evaluation for low porosity and low permeability reservoir. 随着吐哈盆地勘探的进一步深入,低孔、低渗储层是测井解释和储层评价的一个难题。
- The results from experimental data of low permeability cores by dimensionless analysis show that the fluid flow in low permeability reservoir is non-Darcy flow. 用无因次分析法对低渗透岩心的实验数据进行了分析,得出新的低渗透油藏非达西渗流方程,并建立了油水两相渗流的数学模型。
- In conventional acidizing to low permeability reservoir, the formation will be damaged again owing to the unthorough flowback of the spent acid, so foamed acid has been used. 针对应用常规酸化技术对低渗油层进行改造时,由于返排不彻底对其造成二次污染,故建议使用泡沫酸。
- This paper points out that due to the low production capacity, it is uneconomic to use the existing pump pipe string to produce oil from the low permeability reservoir. 通过研究表明,采用虹吸尾管结构管柱,可减少流体通过的压力损失,提高泵的吸入压力、入泵液速度及脉冲解堵等功能。
- Perforation technology of low permeability reservoir must be combined with fracturing technology, and the optimization of perforated intervals is one of the key problems. 低渗透储层的射孔技术必须配合压裂增产改造技术而开展,其中射孔层位优化是其关键问题之一。
- Formation damage in low permeability reservoir possesses the characteristic of high sensitivity to pressure, serious liquid blockup and obvious drilling fluid invasion to formation. 低渗透气藏的地层损害具有压力敏感性高、液体滞留效应严重和反向吸入现象明显的特点。
- A formula for calculating the minimum underbalance in lower permeability reservoir is obtained by applying a drag force function to testing data. 通过将拖曳力函数用于油田测试数据，提出了确定低渗透地层最小测试压差的公式和方法。
- In this paper, the new typical cures for the pulse-testing analysis are developed and the analysis method is improved according to the features of pressures response in the low permeability reservoir. 针对低渗透油藏的脉冲试井压力反应特点,对原脉冲试井理论方法进行了改进,并研制了新的脉冲试井理论图版。
- It was difficult for pulse testing in the low permeability reservoir,selection of calculation point of pulse directly affected the interpreting results of pulse pressure response curves. 低渗透油藏脉冲试井难度大,脉冲计算点的取法直接影响脉冲压力反应曲线的解释结果。
