摘要
卫城油田非均质性极强 ,具有低孔、低渗、矿化度变化范围大等特点 ,一些常规剩余油测井方法受到很大限制。采用注钆—中子寿命测井技术 ,根据区块特征开展多级“测—注—测”工艺研究 ,总结出钆酸渗吸扩散规律 ,确定最佳测井时间 ,根据区块油藏情况优化解释模型及参数 ,并结合油藏动、静态资料进行综合评价。该技术在卫城油田测井 2 5口 ,解释符合率 86 .4 % ,累计增油1.4 5× 10 4t ,取得了良好的应用效果。
Weicheng oilfield is a heterogeneous reservoir which has notable characteristics of low porosity,low permeability and low salinity.It is difficult for conventional logging methods to evaluate remaining oil saturation.By applying Gadolinium-injected Neutron lifetime logging Technology and according to region characteristic,the multilevel logging-injecting-logging technique have developed,the law of imbibitions and diffusion is summarized and optimal logging time is determined.Optimize data interpret model and parameters have been reached according to block production level and combined with the conditions of reservoir and dynamic & static data,comprehensive reservoir evaluation is Performed.Twenty-five wells in Weicheng oilfield are logged with this technology,the ratio of interpret in the interest is 86.4% and accumulate increased oil is 1.45×10 4t,a good applied effect is achieved.
出处
《油气井测试》
2004年第5期78-79,81,共3页
Well Testing
