摘要
文章以自然伽马能谱在内蒙地区应用为例,介绍了仪器的原理、方法和适用范围。自然伽马能谱测井可以测量地层的钍、铀、钾含量及其放射性总强度。通过这些参数可较准确地确定地层中泥质含量、识别高自然伽马储层、识别裂缝、区分泥岩的粘土类型并确定其含量,藉此可以判断岩性,研究沉积环境、生油层、寻找储集层等。
Natural gamma-ray spectral logging is a kind of mature image-log technology.Based on natural gamma-ray spectral logging in Inner Mongolia,this paper introduces the principles,methods and applicability.Natural gamma-ray spectral logging can measure formation of thorium,uranium and potassium contents and radioactive total intensity.These parameters can more accurately determine formation of clay content,identify high gamma reservoir,identify cracks,distinguish the type of clay shale and determine its content,and can be judged to lithology,sedimentary environment,raw oil, look for reservoir and so on.
出处
《石油仪器》
2012年第3期44-46,9,共3页
Petroleum Instruments
关键词
自然伽马能谱
裸眼井
泥质含量
裂缝
岩性
生油层
natural gamma-ray spectra
open hole
clay content
crack
lithology
raw oil
