【摘要】 由于地震资料解释可提供盆地模拟所需的参数,比如不同岩石的特性及其在三维空间的展布特征等,所以可将两者结合进行油气成藏研究。本文根据油气成藏研究中控制油气聚集与分布的三大主要因素(构造演化、层序地层格架和运聚条件),从以下三方面进行油气成藏研究:①通过三维地震构造解释与构造演化史模拟的结合,再现生长地层的变形过程,揭示控制有效储层形成的地质作用和油气成藏要素的时空匹配关系;②根据层序地层的地震解释和岩性预测,约束重建沉积史,分析生储盖组合,为研究岩性地层油气藏分布规律和成藏机理提供依据;③将波阻抗反演孔隙度和渗透性与储层演化和油气成藏结合起来。盆地模拟的结果取决于井资料和地震反演结果,而数值模拟出来的流体方向、饱和度、裂缝等,又可用来作为约束条件以提高地震反演结果的质量。更多还原

【Abstract】 There is a close relationship between seismic interpretation and basin modeling.The data which are needed by basin modeling which is based on the quantitative evolution can be obtained from the basic equations among geological parameters of different rocks,those equations depend on the characteristics and values of the rocks,as well as their distribution in the 3D space.In this aspect the 3D seismic interpretation which is based on growth structure and sequence stratigraphy could play a key role in predicting the geological parameters through seismic inversion and attribute analysis.In studies of oil&gas accumulation,3 major factors control the accumulation and distribution of the oil and gas,the 3 factors are tectonic evolution,sequence stratigraphic framework,as well as migration and accumulation condition,as a result the main study contents for joint seismic interpretation and basin modeling including the following:(1)The integration of 3D seismic structure interpretation and tectono-evolution history modeling,representation of deformation process for the growth strata,and revelation of time-space matching relation of geological effect factors and hydrocarbon accumulation factors which control formation of effective reservoirs.(2)Based on seismic interpretation and lithology prediction for the sequence strata,constraining reconstruction of sedimentary history,analyzing source reservoir cap assemblage,and providing solid and favorable evidence,(3)Integration of porosity and permeability which were inverted from impedance inversion with reservoir evolution and oil&gas accumulation.The results from the basin modeling depend on the quality of the rock’s properties which were inverted from well data and seismic data,at the same time the flow direction,saturation,crushing and other information from the numerical simulation provide excellent quality control method for testing capillary pressure and connectivity hypothesis,and they also lead to better seismic inversion results.In this paper raising the reliability of quantitatively studying the oil & gas accumulation in petroleum geology was tried,aiming at applying integration of multi-disciplines in the studies of oil & gas accumulation and distribution laws,and at last scientifically guiding the oil & gas exploration.更多还原