IODP Expedition 383 Source rock analyzer (SRA)

SRA is run for the purpose of safety monitoring and yields information about thermal maturation and source of hydrocarbons, as well as petroleum potential, in the sediment or rocks at a drilled site. Samples are heated in a pyrolysis oven in an inert atmosphere to quantitatively and selectively determine free hydrocarbons contained in the sample and the hydrogen- and oxygen-containing compounds that are volatilized during the cracking of unextractable organic matter in the sample (kerogen).SRA 以安全监测为目标实施，可获取钻井位点处沉积物与岩石的热成熟度、烃类来源及油气潜力相关信息。将样品置于惰性气氛热解炉内加热，以此定量且选择性地测定样品中的游离烃，以及样品中不可萃取有机质（干酪根，kerogen）裂解过程中挥发产生的含氢、含氧化合物。