杏树岗构造扶余油层敏感性特征研究  

Sensitivity Characters of Fuyu Reservoir in Xingshugang Structure

作　　者：潘会芳[1] 

机构地区：[1]中石油大庆油田有限责任公司勘探开发研究院地质实验室,黑龙江大庆163712

出　　处：《石油天然气学报》2012年第09X期183-187,3+2,共5页Journal of Oil and Gas Technology

摘　　要：利用多种分析手段,对杏树岗构造扶余油层进行了岩石矿物学和储集层物性的分析,研究表明其中大量发育的黏土矿物和储集层渗透性差是造成储层敏感的主要原因。储层敏感性分析结果显示扶余油层呈现弱～中偏弱的速敏伤害、中等程度的水敏伤害和弱～中偏弱的碱敏伤害。因此在杏树岗构造扶余油层的施工中,建议工作液中适量添加微粒稳定剂和表面活性剂。而根据实验室酸敏试验的结果,在储层改造时采用低浓度的有机缓蚀酸,不仅能够保持骨架颗粒稳定,而且能加深酸化的深度,提高酸化效果。By using some analytical tools in laboratory,rock mineralogy and physical properties of the Fuyu Reservoir in Xingshugang Structure were analyzed.Study indicates that the main reasons of causing reservoir sensitivity were lots of clay minerals and the poor reservoir permeability.Reservoir sensitivity analysis shows that the velocity-sensitivity is middle to weak alkali sensitivity is weak to moderate-weak,and water sensitivity is moderate in the Fuyu Reservoir.Therefore,for the operation in Fuyu Reservoir,it is suggested that some particulate stabilizer and surfactant are added into the working fluids.According to the results of laboratory acid-sensitivity experiments,in the reservoir reconstruction,the low concentration organic and retarded acids should be used for maintaining stable framework grains,and deepening the depth of the acidification,and increaseing the acidification effect.

关 键 词：特低渗储集层 储层敏感性 有机缓蚀酸 储层改造 杏树岗构造 

分 类 号：P618.13[天文地球—矿床学]