热中子成像系统在页岩油开发中的应用  

Application of Thermal Neutron Imaging System in Shale Oil Exploration

作　　者：李磊 LI Lei(Logging&Testing Services Company,Daqing Oilfield Company Ltd.,Daqing,Heilongjiang 163000,China)

机构地区：[1]中国石油大庆油田有限责任公司测试技术服务分公司,黑龙江大庆163000

出　　处：《石油管材与仪器》2024年第3期65-70,I0004,共7页Petroleum Tubular Goods & Instruments

摘　　要：热中子成像系统是一种脉冲中子套后饱和度测井技术。当某些井未能进行常规裸眼测井时,应用热中子成像系统可以获取套后测井资料,实现对单井油水层的评价,为后续射孔等工作提供依据。在阐述热中子成像系统工作原理和技术特点的基础上,介绍了其在页岩油开发中的应用成果。利用热中子成像资料,可以评价储层物性和脆性矿物含量,进行储层分类、识别优质储层。通过分析热中子成像系统在压裂前、压裂后的测井信息,对比压裂前后储层孔隙度、含油饱和度的变化情况,可以有效评价压裂效果。研究结果可为改善油田开发效果、提高页岩油采收率提供技术支撑。Thermal neutron imaging system is a post-saturation logging technology for pulsed neutron suites.When conventional open hole logging can not be performed in some wells,the thermal neutron imaging system can be used to obtain the logging data after sleeve,and realize the evaluation of the oil-water layer in a single well,providing the basis for the later perforation and other operations.On the basis of describing the working principle and technical characteristics of thermal neutron imaging system,application results in shale oil development are introduced.The thermal neutron imaging data can be used to evaluate the physical properties and brittle mineral content of the reservoir,classify the reservoir and identify the high-quality reservoir.By analyzing the logging information of thermal neutron imaging system before and after fracturing,and comparing the changes of reservoir porosity and oil saturation before and after fracturing,the fracturing effect can be effectively evaluated.Research result can provide technical support for improving oilfield development effect and enhancing shale oil recovery.

关 键 词：热中子成像系统 俘获截面 含氢指数 脉冲中子 时间推移测井 压裂 页岩油 非常规 

分 类 号：P631.8[天文地球—地质矿产勘探]