可控中子及X射线源测井技术发展现状及趋势

随着核仪器技术的进步以及安全健康的工业发展需求，具有人工可控性的中子源及X射线源逐步在测井领域得到推广应用，为油气等矿产资源的勘探开发提供了关键技术手段。可控中子及X射线源测井技术是以中子发生器或X射线管产生的中子或X射线与地层物质作用，通过探测中子、伽马或X射线从而进行地层孔隙度、密度、油气饱和度和元素含量的测井技术。本文概述了可控中子及X射线源测井技术，回顾了其发展历程；介绍了可控中子及X射线测井技术在数值模拟、仪器研制及数据处理方法方面的研究现状及应用，并展望了可控中子及X射线源测井技术的发展前景，认为未来可控中子及X射线源测井技术可从以下三个方面开展研究：分析不同射线在能量、时间及空间的分布规律，开展探测理论基础研究；联合不同学科优势，开展多类型多模式的新型仪器研制；增强谱数据校正及解析方法研究，开展谱信息综合分析及应用。

Research Development and Tendency of Controllable Neutron and X-ray Source Well Logging Technology

With the advancement of nuclear instrument technology and the requirement of safe and healthy in industrial development, the neutron and X-ray source that has artificial controllability are gradually popularized and applied in the field of well logging, providing key technical method for the exploration and development of oil, gas and other mineral resources. Based on the interaction of neutrons, gamma rays or X-rays with formation materials, controlled neutron and X-ray source logging technology can be used for porosity, density, element content, oil and gas saturation detection. In this paper,controlled neutron and X-ray source logging techniques are summarized. The development of controlled neutron and X-ray source logging technology is reviewed. The research status and application of controlled neutron and X-ray logging technology in numerical simulation, instrument development and data processing are introduced. In addition, the development prospect of controllable neutron and X-ray source logging technology is prospected. In the future, controllable neutron and X-ray source logging technology can be studied from the following three aspects: analyzing the distribution of different rays in energy, time and space to carry out the basic detection theory; combining the advantages of different disciplines to develop multi-type and multi-mode new instruments; studying on the correction and analytical methods of spectral data, and carrying out spectral information comprehensive analysis and application.