摘要
岩心是油气田勘探开发的核心战略资源之一,在油气藏岩相、储层物性、含油性的研究中发挥着重要作用。与纸质资料相比,岩心实物地质资料具有缩减性和可变性的特点,岩心“原貌”不可能长久保存,从而降低了岩心的使用价值。岩心数字化技术可以及时采集岩心各项原始数据,丰富岩心地质信息,提升岩心资料利用率,因此开展岩心数字化技术研究具有重要意义。根据胜利油田岩心数字化建设的生产实践,对岩心数字化的概念、设备和技术内容进行了阐述,分析了岩心伽马能谱测量、XRF元素测试、磁化率测试、CT扫描等多种重要的岩心数字化技术,并探讨了各项技术的地质应用效果。研究结果表明,岩心数字化技术具有测试快、连续性好、数据多、精度高等优势,可以精细反映沉积物的变化特征,能为泥页岩、碳酸盐岩和砂砾岩等地层的沉积成因、储层描述及评价、物质组成等问题的研究提供重要的地质依据,具有较为广阔的应用前景。岩心数字化资料是基于岩心直接获得的岩心尺度的连续性资料,从资料性质上来看介于原始资料和成果资料之间,更侧重于岩心的“原始性”,是第一手的地质资料。岩心数字化资料具有独特而重要的应用价值,是提高岩心应用水平的重要技术手段。
The core is one of the core strategic resources in the exploration and development of oil and gas fields and plays an im‐portant role in the research on facies of oil and gas reservoirs,physical properties of reservoirs,and oil content.Compared with the paper data,the physical geological data of the core has the characteristics of reduction and variability,and the original appearance of the core cannot be preserved for a long time,thus reducing the utilization value of the core.Digital core technologies can collect the original data of the core in time,enrich the geological information of the core,and improve the utilization rate of core data,so it is of great significance to research digital core technologies.According to the production practice of core digitization construction in Shengli Oilfield,the concept,equipment,and technical content of core digitization were described,and many important digital core technologies such as core gamma spectrometry measurement,XRF element testing,magnetic susceptibility testing,and CT scanning were analyzed.The geological application effects of each technology were discussed.The research results show that digital core technologies have the advantages of fast testing,good continuity,large data,and high precision.They can accurately reflect the characteristics of sediment changes and provide an important geological basis for the research on sedimentary genesis,reservoir description and evaluation,material composition,and other issues of shales,carbonate,and glutenite,with a broad application prospect.Digital core data is the continuous data of core scale obtained directly from the core,which is between the original data and the result data in terms of the nature of the data,and it focuses more on the originality of the core,which is the first-hand geo‐logical data.Digital core data has unique and important application value and is an important technical means to improve the applica‐tion level of the core.
作者
杨光
高祥成
李永忠
李秀国
郭昭江
赵杰杰
王辉
郑胜利
董福奇
YANG Guang;GAO Xiangcheng;LI Yongzhong;LI Xiuguo;GUO Zhaojiang;ZHAO Jiejie;WANG Hui;ZHENG Shengli;DONG Fuqi(Exploration and Development Research Institute,Shengli Oilfield Company,SINOPEC,Dongying City,Shandong Province,257015,China)
出处
《油气地质与采收率》
CAS
CSCD
北大核心
2024年第4期217-226,共10页
Petroleum Geology and Recovery Efficiency
