【摘 要】
:
通过应力敏感性实验,研究鄂尔多斯盆地延长组富含绿泥石和富含高岭石的低渗透砂岩储层的渗透率应力敏感性。结果表明,富含绿泥石储层的渗透率应力敏感性较弱,而富含高岭石储
【机 构】
:
中国石油大学石油工程教育部重点实验室
论文部分内容阅读
通过应力敏感性实验,研究鄂尔多斯盆地延长组富含绿泥石和富含高岭石的低渗透砂岩储层的渗透率应力敏感性。结果表明,富含绿泥石储层的渗透率应力敏感性较弱,而富含高岭石储层的渗透率应力敏感性较强;富含绿泥石的不同岩样,随着初始渗透率减小,应力敏感性显著增强,而富含高岭石砂岩的渗透率应力敏感性与初始渗透率大小的相关性较差,这与高岭石的生长模式有关。因此,富含高岭石的低渗透砂岩油藏的开发应采用超前注水技术,尽可能地保持地层压力,降低开发过程中渗透率应力敏感性对产能的不利影响。
其他文献
在贵州的传统学术文化瑰宝中,最具有本土特点且又最能与全国乃至世界接轨的当首推“黔中三宝”,即黔中王学、佛学和易学。这“三宝”是黔中传统文化中的奇葩,它们至今不仅仍然能
The sensing performances of multiple networked Ga N nanowire(NW) sensor codecorated with Au and Pt nanoparticles were examined. The pristine Ga N nanowires show
四川盆地西部地区须五段是新的勘探开发层位,储层岩性主要为致密砂岩和泥页岩,天然裂缝的存在大大提高了其储集能力和渗透特征。通过岩心观察和薄片鉴定须五段裂缝,总结出须五段
CO2驱最小混相压力预测主要有细管驱替实验法和公式法两种,细管驱替实验法较为准确,但样品要求高、实验工作量较大;公式法具有简便、成本低的优势,但目前国内外研究成果无法
Based on the existing form of Zn2 Si O4 in willemite, the chemical precipitation method was used to synthesize Zn2 Si O4.Through the orthogonal experimentation,
This work was focused on the model-based design method of two-axis four-actuator(TAFA) fast steering mirror system(FSM), in order to improve the design efficien
To improve the global search ability and imaging quality of electrical resistivity imaging(ERI) inversion, a two-stage learning ICPSO algorithm of radial basis
This work used the computational fluid dynamics method combined with full-scale train tests to analyze the train aerodynamic performance on special slope topography. Results show that with the increme
A design method was developed to specify the profile of the continuously variable Mach-number nozzle for the supersonic wind tunnel. The controllable contour de
针对主力产层只有一个小层并进入高含水阶段的渤海CB油田稠油油藏,基于动、静态相结合的思路,从控制剩余油分布的因素出发,采用测井曲线频谱属性分析和小波频谱分析等数学方法、