关键词: 断陷盆地；古近系&mdash, 新近系；资源潜力；探明程度；勘探开发；技术需求

Abstract: The targets to be found in China’s eastern faulted basins of the Paleogene System-the Neogene System become more and more subtle. With the main oil reservoirs entering their “three high” stage, it is more and more difficult for exploration and development. However, the reserves are still regarded as tremendous. It is of great significance to analyze and study future technological development. The low-graded and subtle oil and gas reservoirs in this region will be the main targets for future exploration and development. It is necessary to update the knowledge about continental source strata and accumulation efficiency, focus the study on spatial differential distribution of remaining oil and gas resources, continue to develop and perfect the trap and reservoir description and prediction technology which is dominated by 3D seismic exploration technology, and develop the wellbore technology aimed at improving single-well productivity, such as large-displacement, multi-target, horizontal well drilling technology as well as staged fracturing and volumetric fracturing technologies. It is also necessary to develop the fine exploration and development technology for marginal oil and gas reservoirs, complex geological bodies and improve the EOR technology for high and ultra-high water-cut oilfields, promoting high-efficiency development and utilization of complex and low-grade oil and gas resources.