岩屑录井数字化的认识与误区  

Understanding and misunderstanding of cutting logging digitalization

作　　者：朱根庆 

机构地区：[1]重庆奥能瑞科石油技术有限责任公司

出　　处：《录井工程》2012年第2期8-10,45,共4页Mud Logging Engineering

摘　　要：从原理和方法上比较了近年来在岩屑录井定量化方面出现的X射线荧光法、X射线衍射法和γ能谱法3种新技术,分析了各技术的特点,指出了在岩屑量化分析中容易出现的认识误区,认为这3种方法不是相互替代,而是各有优势且具有互补性的,提出了岩屑量化描述的组合技术概念。从录井现场实用性角度分析了3种技术在采样及处理、分析环境、分析周期、数据处理、适应环境的差异,通过实时性、快捷性对比分析认为,X射线荧光法更具优势,更适合于野外作业环境。根据录井市场地域性的不同需求,选用上述不同的技术组合,实现勘探、开发中对沉积岩岩屑进行定量描述和识别的目的。From the principles and methods,the paper compared cutting logging quantitative methods in recent years,such as X-ray fluorescence,X-ray diffraction and gamma spectroscopy,analyzed the characteristics of each technology and pointed out the misunderstandings that can be easily arisen in the cutting quantitative analysis.The authors thought that these 3 methods are not substitutes for one another,they have their own advantages and are complementary.The concept of combined technologies to cutting quantitative description was put forward.From the practical point of view on the logging site,the paper systematically analyzed the differences of these 3 technologies in sampling and processing,analysis environment and cycle,data processing and adapting to environment.Through the contrast on real-timing and rapidity,X-ray fluorescence has the advantages and is more suitable for field work environment.According to the different needs of the regional logging markets,different combinations of the technologies can be used to solve the geological problems during the exploration and development.

关 键 词：岩屑定量描述 X射线荧光法 X射线衍射法 Γ能谱法 布拉格方程 衍射角 元素 放射性核素 

分 类 号：TE132.9[石油与天然气工程—油气勘探]