泌阳凹陷南部陡坡带砂砾岩体预测方法

Application of Glutenite Reservoir Predicting Technique in the Steep Slope of Biyang Depression

在层序地层学研究的基础上,综合利用地球物理技术对泌阳凹陷南部陡坡带进行砂砾岩体储层预测。根据泌阳凹陷南部陡坡带扇三角洲储层的沉积特点,利用古地貌的沟扇对应理论研究砂砾岩扇体的空间展布;利用地震多属性分析技术判断砂砾岩体的发育规模;利用约束地震反演技术描述了砂体的空间分布规律。建立了一套综合预测泌阳凹陷南部陡坡带砂砾岩体空间展布的方法。

The comprehensive geophysics methods are applied in the steep slope of Biyang Depression based on the sequence stratigraphy.The comprehensive application of multi-disciplinary and multi-technology enables the effective prediction of the favorable reservoirs.Meanwhile,geological information and geophysical methods are organically combined for mutual supplement and mutual verification.According to its own features of the fan delta reservoir existing in the steep slope of Biyang Depression,paleogeomorphology analysis and canal and segment correspondence theory are used to predict the spatial distribution characteristics of the sandy conglomerate fan body.Seismic attribute analysis is used to judge the development size of the sandy conglomerate bodies.While wave impedance inversion is employed to predict the region of the favorable reservoir.With all these analysis and predictions,the favorable hydrocarbon accumulation zone can be marked.Practice proved that this process is effective,and can be a certain guidance in the exploration in the steep slope of Biyang Depression.