【摘要】 干酪根是低成熟页岩中的主要有机质，其在超临界水中转化特性是发展超临界水地下原位转化技术的基础。本文开展了页岩干酪根的超临界水转化规律研究，利用酸洗对干酪根进行提取，主要调研盐酸、氢氟酸、硝酸的使用对干酪根本体的影响，并简单分析干酪根在超临界水温度变化时的生烃转化规律。研究发现，380?C、25 MPa的条件下，油收率达到最大值0.13 g·g^-1（干酪根），同时可燃页岩气最佳产率可达到800 mL·g^-1（干酪根），证明了超临界水能高效地将低成熟度页岩转化成高品质油气产品。更多还原

【Abstract】 Kerogen is the main organic matter in low mature shale, and its conversion characteristic in supercritical water is the basis of developing in-situ supercritical water conversion technology. In this paper, the rule of supercritical water conversion of shale kerogen was studied, and kerogen was extracted by acid-pickling. The influence of hydrofluoric acid, hydrofluoric acid and nitric acid on the root body of kerogen was investigated, and hydrocarbon generation of kerogen when the temperature of supercritical water changed was briefly analyzed. It is found that under the conditions of 380?C and 25 MPa, the maximum oil yield can reach 0.13 g·g^-1（kerogen）, and the optimal yield of the shale gas can reach 800 mL·g^-1（kerogen）, which preliminatively proves that the supercritical water can efficiently convert the shale with low maturity into higher value oil and gas resources, providing theoretical guidance for further experiments and practical operations.更多还原