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江汉盆地经历了多期构造活动,发育印支-中燕山期挤压体系和晚燕山-早喜山期伸展体系,对该区古潜山的缝洞性储层发育、油气潜力以及封闭条件等方面具有明显的控制作用。研究表明:与逆断作用及其相关褶皱作用形成的裂缝促进岩溶作用的进行,导致缝洞性储集层的形成;古潜山油气藏的烃源、烃源成熟度和油气充注能力与新生代伸展断层作用有关;潜山圈闭的封闭能力由构造活动对潜山上覆地层的剥蚀程度、基底卷入正断层的侧向封闭性共同确定的。综合评价认为,新沟潜山带的最具有勘探价值。
Jianghan Basin has undergone multiple tectonic activities to develop the Indosinian-Middle Yanshanian extrusion system and the Late Yanshan-Early Himalayan extensional system. The development of fractured vuggy reservoirs, hydrocarbon potential and sealing conditions of the buried hill in this area Has obvious control. The results show that the fractures formed by the thrust reversal and its associated folds promote the karstification and lead to the formation of fractured vuggy reservoirs. The hydrocarbon sources, hydrocarbon maturity and hydrocarbon filling capacity of the buried hill reservoirs are associated with Cenozoic extensional faults; the sealing ability of buried hill traps is determined jointly by tectonic activity on the extent of denudation of overburden strata in buried hills and the lateral confinement of basal bodies involved in normal faults. Comprehensive assessment that the new ditch with the most valuable exploration of the mountain.