摘要
油藏非均质性对鱼骨井蒸汽吞吐效果产生明显影响,沉积微相的展布规律反映了非均质性的分布规律.考虑鱼骨井与沉积相带、物源方向的不同位置和方向关系,运用数值模拟方法研究物源方向和相带分布对鱼骨井蒸汽吞吐效果的影响规律,从而选取最佳布井策略.研究结果表明:1若鱼骨井走向与物源方向平行,鱼骨井落入的相带物性越好,其蒸汽吞吐生产效果越好.鱼骨井落入主河道时的累积产油量高于鱼骨井落入河间砂坝及薄层砂的情况;2若鱼骨井走向与物源方向垂直,鱼骨井穿越相带的排列次序对鱼骨井蒸汽吞吐生产效果有显著影响.水平段中点落入主河道时的累积产油量高于水平段中点落入河间砂坝和薄层砂情况;而当水平段中点落入河间砂坝时的累积产油量明显低于水平段中点落入主河道和薄层砂的情况.
The plane heterogeneity has a significant effect on herringbone well steam stimulation, and the distribution of sedimentary reflects the plane heterogeneity. Different location and direction relationships between the herringbone well and sedimentary facies belt and matter sources direction were designed, and numerical simulation method was applied to the research on the effect of matter sources direction and facies belt distribution on herringbone well steam stimulation to optimize well spacing. The results showed as follows. The better properties of the phase which herringbone well into, the better steam stimulation production would be obtained. When the herringbone well is parallel to the direction of the matter sources, the cumulative oil production of the herringbone well in the drainage line is higher the herringbone in the inter- fiver sand bar and lice. The ordering of the facies has a significant effect on herringbone well steam stimulation, when herringbone well is perpendicular to the direction of matter sources. When horizontal midpoint falls into the drainage line, the cumulative oil production of the herringbone well is higher than the other cases. The cumulative oil production of the herringbone well is lowest when it falls into the inter -river sand bar.
出处
《河南科学》
2015年第2期261-264,共4页
Henan Science
关键词
沉积微相
非均质性
鱼骨井
蒸汽吞吐
稠油
sedimentary microfacies
heterogeneity
herringbone well： steam stimulation
heavy oil reservoir
