红外碳硫仪测定烃源岩中总有机碳

Determination of Total Organic Carbon in Source Rocks by Infrared Varbon and Sulfur Meter

烃源岩包括油源岩、气源岩和油气源岩,习惯上通常叫作生油岩,它是一种能够产生或已经产生可移动烃类的岩石。烃源岩含有大量有机质即干酪根。红外碳硫分析仪是根据不同物质对红外光谱的吸收有其特定波长的特性及朗伯比尔定律而设计的。烃源岩经盐酸处理后,在燃烧管内于氧气流中燃烧,样品中的有机碳在加热催化剂条件下全部转变为二氧化碳,红外线被二氧化碳气体特性波长所吸收,根据红外线吸收前后的能量之差与二氧化碳浓度间关系,经固态检测器、前置放大器以及A/D转换送到终端,得出总有机碳含量。

Source rocks include oil source rocks, gas source rocks and oil and gas source rocks. They are commonly called source rocks. They are rocks that can produce or have produced movable hydrocarbons. Source rocks contain a large amount of organic matter, also known as namely kerogen. Infrared Carbon and Sulphur Meter is designed according to the absorption of infrared spectra by different substances with their specific wavelength characteristics and Lambert’s law. Source rocks treated with hydrochloric acid, burn with oxygen flow in tube, organic carbon in the sample is converted to carbon dioxide under the condition of heating catalyst, infrared light is absorbed by characteristic wavelength of carbon dioxide, the relationship between the energy difference before and after infrared absorption and the concentration of carbon dioxide, calculat total organic carbon content by solid state detector、preamplifier and A/D converter.