新构造运动与四川盆地构造演化及气藏形成

RELATIONSHIP BETWEEN NEOTECTONIC MOVEMENT AND STRUCTURAL EVOLUTION AND GAS POOLS FORMATION OF SICHUAN BASIN

新构造运动控制中国东部新生代裂谷含油气盆地形成 ,丰产油气资源。改造了上扬子地台区及青藏高原古生界—中生界油气藏形成的地质构造条件。大量油气层受到破坏。青藏高原隆升构成中国新构造运动的中心 ,它控制了四川盆地新生代断褶构造演化及海相碳酸盐岩气藏形成。构造发育程度控制气藏形成及分布。发育程度高的背斜 ,原有油气藏遭到破坏 ;发育程度中—低及隐伏背斜 ,富集天然气成藏。四川盆地气藏形成及保存的地层构造条件 。

The neotectonic movement in East China controls the formation of the Tertiary rifting basins that are rich in oil gas. It reforms structural geology for generating the Paleozoic Mesozoic oil gas pools in the Upper Yangtze Platform and Qingzang Plateau. A lot of oil gas beds are disappearing. The uplifting of Qingzang Plateau constructs the center of the neotectonic movement of China, controlling the evolution of fault folding structures and the distribution of marine carbonate gas pools. The existent oil gas pools in the anticlines with higher development are damaged, and blind anticlines with low medium development are rich in natural gas. Geological structural conditions for the oil gas formation and preservation in Sichuan Basin can be conducted to find oil gas pools in the Upper Yangtze Platform and Qingzang Plateau.