九龙山地区二叠系储层正演模拟

Forward Modeling of Permian Reservoir in Jiulongshan Area

栖霞组是九龙山地区二叠系最为重要的气藏之一,近年来得到了快速的勘探开发。但由于该段横向非均质性强,同时受到地震分辨率不高及含气储层较薄等因素的影响,其储层地震地质响应特征不明确,严重影响了运用物探手段进行储层预测的效果。基于此,利用九龙山地区的井震资料,从储层模型正演的角度解析栖霞组地震地质响应特征,通过构建合理的地质模型进行正演模拟,明确栖霞组含气储层为弱振幅复波,围岩则为高频强振幅波峰。通过研究为利用九龙山地区气藏的地震地质特征进行储层预测提供了重要依据。

The Qixia formation is one of the most important permian gas reservoirs in the Jiulongshan area,which has been rapidly explored and developed in recent years,at the same time,it is affected by the low seismic resolution and the thin gas-bearing reservoir,and the characteristics of the seismic-geological response of the reservoir are not clear.In this paper,we use the well seismic data in Jiulongshan area to analyze the seismic geological response characteristics of the Qixia formation from the point of view of reservoir model forward modeling,it is clear that the gas bearing reservoir of the Qixia formation is a complex wave of weak amplitude,while the surrounding rock is a peak of high frequency and strong amplitude.This study provides an important basis for reservoir prediction by using the seismic geological characteristics of Jiulongshan gas reservoir.