【摘要】 河道砂体内部构型研究以往主要侧重于储层展布、规模等方面,对于废弃河道、侧积层的研究还主要是定性分析;而分频解释及河道边缘检测等地震技术方法的逐步应用,进一步提高了河道砂体内部构型研究的精度,一方面可以落实砂体分布,确定河道带展布,勾画末期河道的边界,同时也能反映砂体间的接触界面位置,展现了整个地质事件连续的分布特征。以港东开发区为例,介绍了应用分频解释与河道边缘检测技术对复合河道砂体进行研究的进程、技术思路及应用结果,随着该项研究工作的逐步深入,必将为量化油藏潜力与水平井轨迹优化,以及老油田合理注采井网的完善提供有利依据。更多还原

【Abstract】 The research on channel sand architecture anciently emphasized particularly on the reservoir pattern and size etc.As to the study on abandoned channel and lateral accretionlayer is mainly depended on qualitative analysis. With the gradual application of the seismic techniques about the frequency interpretation and channel edge detection, the precision of the channel sand body architecture is further raised.On one hand, the distribution of the sand body and the channel belt can be confirmed, and the boundary of the terminal channel can be sketched; on the other hand, the location of contact interface between the sand bodies can also be reflected, which can reveal the continuous distribution character ofthe entire geological event. Taking Gangdong development area as an example, this article introduces the program, thetechnical ideas and the application result of the research on complex channel sand body with the frequency interpretation and the channel edge detection techniques are presented.With gradual indepth research on the work, the favorable basis will be provided for the quantification of the reservoir potential and the optimization of the horizontal well’s track,and the consummation of the reasonable flooding network in the maturing oilfield.更多还原