华北燕山地区中—新元古界油气勘查形势

Oil and gas exploration status analysis of the Meso-Neoproterozoic strata in Yanshan area, North China

东西伯利亚、阿曼和中国四川盆地等地中—新元古界油气勘探开发已获成功,表明中—新元古界是一个值得勘查的油气新层系。中国燕山地区中—新元古界烃源岩发育,具有良好的油气勘探前景,前人在该地区进行了调查研究,但尚未取得实质性勘探突破。在总结燕山地区中—新元古界的油气勘查进展、研究烃源岩有机地球化学特征、分析烃源岩生烃潜力和评估资源前景的基础上,提出准确落实中—新元古界构造稳定区、加强油气资源保存条件研究、以页岩气为主的资源勘查等工作建议,为国家油气资源战略选区提供了科学参考。

The oil and gas of the Meso-Neoproterozoic strata in East Siberia,Oman and Sichuan Basin of China have been explored successfully,which indicates that the Meso-Neoproterozoic strata seem to be a series of oil-gas source strata which are worthy of attention.The Meso-Neoproterozoic source rocks in Yanshan area of China are well developed,which shows good prospects for oil and gas exploration.Previous studies have been carried out in this area without substantial breakthrough in the exploration.In this paper,the authors summed up the oil and gas exploration progress of the Meso-Neoproterozoic strata in Yanshan area,studied the organic geochemical characteristics of source rocks,analyzed the hydrocarbon generation potential of source rocks and evaluated the resources potentiality.Furthermore,the authors suggest that it is necessary to find the stable tectonic conditions of the Meso-Neoproterozoic strata accurately,to strengthen the research on the preservation conditions of oil and gas resources and focus on the shale gas-based resources exploration.