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随着我国油气工业的不断发展,隐蔽油气藏已经逐渐成为油气藏勘探的主要类型,其勘探理论及勘探手段也得到了快速发展。通过对隐蔽油气藏勘探理论的系统分析表明,截至目前层序地层学、古地貌、坡折带和油源控制4大理论有效地指导了隐蔽油气藏形成机制及分布规律研究。三级层序不整合面上、下空间和低位体系域为隐蔽油气藏发育的有利场所,不整合面自身的疏导能力和封闭机理是隐蔽油气藏形成的主要因素,低位体系域中丰富的储集体和良好的空间配置为油气富集提供了条件。古地貌与坡折带制约着储集体的空间展布及汇聚沉积特征,指导了隐蔽储集体的横向追踪。优质烃源岩与储集层的位置关系可以为精确预测隐蔽油气藏发育范围提供思路。
With the continuous development of China’s oil and gas industry, subtle reservoirs have gradually become the major types of oil and gas exploration, and their exploration theory and exploration methods have also been rapidly developed. The systematic analysis of subtle reservoir exploration theory shows that the four major theories of sequence stratigraphy, paleogeomorphology, slope break zone and oil source control effectively guide the research on the formation mechanism and distribution of subtle reservoirs. Upper and lower sequence stratigraphic unconformity and lower system tract are favorable sites for the development of subtle reservoirs. Convergence ability and sealing mechanism of unconformity are the main factors that lead to the formation of subtle reservoirs. In the lower system tract, abundant reservoirs Collective and good spatial configuration provide the conditions for the enrichment of oil and gas. Paleogeomorphology and slope breakage restrict the spatial distribution of the reservoirs and converge sedimentary features, guiding the horizontal tracking of the hidden reservoirs. The relationship between the source rocks and the reservoirs of high quality can provide a good idea for accurately predicting the development range of subtle reservoirs.