论文部分内容阅读
中国陆上含气盆地经历了复杂的构造沉积演化过程,主要受两个世代(古生代和中、新生代)、三大构造体系域(古生代的古亚洲构造体系域和中、新生代特提斯构造体系域、环西太平洋构造体系域)控制,它们决定了中国陆上含气盆地的形成和主要盆地类型;盆地类型和多阶段构造—沉积演化决定了中国陆上含气盆地具多套烃源岩、多套储盖层和多套储盖组合发育的特征。中西部与东部差异的天然气地质条件,以及中西部是大中型气田发育的有利地区,东部则是中小型气田或气田群发育区。中国陆上大中型气田具有与克拉通盆地、前陆盆地、断陷坳陷盆地和克拉通隆褶带有关的四大探索领域。中国陆上天然气科学探索井近期勘探主要包括高石梯构造、孤山构造、乌马营构造等六个有利目标。
The terrestrial gas-bearing basins in China have undergone complex tectono-sedimentary evolution processes and are mainly controlled by two generations (Paleozoic and Meso-Cenozoic), three major tectonic systems (Paleozoic Paleo-Asian tectonic system tract and Mesozoic-Cenozoic Tethyan Tectonic system domain and the western Pacific tectonics system), which determine the formation and main basin types of the onshore gas basins in China. The basin type and multi-stage tectono-sedimentary evolution determine that the gas-bearing basins in China have multiple sets of hydrocarbons Source rocks, multiple sets of reservoir caprock and multiple sets of reservoir cap combination development characteristics. The differences between the central and western parts of the natural gas geological conditions, as well as the Midwest is a favorable area for the development of large and medium-sized gas fields, while the eastern part is a small or medium-sized gas field or gas field development. China’s large and medium-sized onshore gas fields have four exploration fields related to the cratonic basin, the foreland basin, the fault depression basin and the cratononglong fold. Recent exploration of China’s onshore natural gas exploration wells includes six favorable targets, namely the high stone ladder structure, the Gushan structure and the Wumaying structure.