关于有机酸对岩层的作用,近些年已逐渐被人们重视。Surdam等人注意到了油田水中有机酸和CO_2含量的变化及对次生孔隙形成的影响,Banth等人曾对烃源岩进行了热解实验。但未见到不同类型干酪根在不同温度下产出有机酸的系统报道。为了系统考察陆相地层烃源岩在成熟过程中有机酸和CO_2的产出情况,研究岩层中次生孔隙的形成机制,扩大油气储集层的评价领域,对沙河街组不同类型的未成熟烃源岩(表1)进行了系统的加水热解实验。 On the role of organic acids on the rock, in recent years has gradually been taken seriously. Surdam et al. Noted the changes of organic acid and CO 2 content in the oilfield water and their effect on secondary pore formation. Banth et al. Conducted pyrolysis experiments on source rocks. However, there are no systematic reports of different types of kerogens producing organic acids at different temperatures. In order to systematically investigate the organic acid and CO 2 production during the maturation of the terrestrial stratigraphic source rocks, study the formation mechanism of secondary pores in the strata and expand the evaluation of oil and gas reservoirs, and analyze the different types of immature Source rocks (Table 1) were systematically hydrothermally tested.