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Comparison of the Sweetness Seismic Attribute and Porosity–Thickness Maps, Sava Depression, Croatia

机译：甜度地震属性和孔隙度-厚度图的比较，萨瓦凹陷，克罗地亚

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摘要

The sweetness seismic attribute is a very useful tool for proper description of the depositional environment, reservoir quality and lithofacies discrimination. This paper shows that depositional channels and turbidity sandstones deposited during the Upper Pannonian and Lower Pontian in the Sava Depression can be described using porosity–thickness and sweetness seismic attribute maps. Two studied reservoirs are of Neogene stage (“UP” reservoir of Upper Pannonian age and “LP” reservoir of Lower Pontian age) and located in the Sava Depression, Croatia. Both reservoirs contain medium to fine grained sandstones that are intercalated with basinal marls. A comparison of the sweetness seismic attribute and porosity–thickness maps show a good visual match with correlation coefficient of approximately 0.85. A mismatch was observed in areas with small reservoir thickness. This work demonstrates the importance of using porosity–thickness maps for reservoir characterization. The workflow presented in this work has wider applications in frontier areas with poor seismic data or coverage.
机译：甜度地震属性对于正确描述沉积环境，储层质量和岩相识别是非常有用的工具。本文表明，可以使用孔隙度-厚度和甜度地震属性图来描述萨瓦De陷上潘诺期和下庞统期间沉积的沉积通道和浊度砂岩。研究的两个储层分别是新近纪阶段（上盘侬时代的“ UP”储层和下庞天时代的“ LP”储层），位于克罗地亚的萨瓦De陷。两个储层均包含中等粒度至细粒度的砂岩，并夹有盆地泥灰岩。甜度地震属性图和孔隙度-厚度图的比较显示出良好的视觉匹配，相关系数约为0.85。在储层厚度小的区域中观察到不匹配。这项工作证明了使用孔隙度-厚度图进行储层表征的重要性。这项工作中介绍的工作流程在地震数据或覆盖范围较差的前沿地区具有更广泛的应用。

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