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塔里木盆地塔中北坡已经发现了致密-低孔低渗岩性油气藏,主要层位为志留系下统柯坪塔格组下砂岩段,本区岩性油气藏具有典型的砂泥岩薄互层特征,而且横向变化大、非均质性极强,准确的预测砂体的展布及其储层特性成为该区生产研究的一项关键工作。针对本区储层的地质、地球物理特点,开展了以MDI软件为平台的地震多属性分析预测技术研究,本文主要提取了对该区砂体较为敏感的多种属性,经过筛选后再与储层特性相关联,再次优选有利属性,最后通过多属性趋势拟合技术对储层特性进行预测。
Tight-low porosity and low permeability lithologic reservoirs have been found in the northern Tarim Basin, Tarim Basin. The main horizon is the lower sandstone section of the Kepingtage Formation in the Silurian. The lithologic reservoirs in this area have typical sandstone and mudstone thin The characteristics of interbeds, large horizontal variation and strong heterogeneity are the key tasks in the study of production in this area. According to the geological and geophysical characteristics of the reservoir in this area, a multi-attribute seismic analysis and prediction technique based on MDI software platform is developed. In this paper, we extract a variety of properties that are sensitive to the sand body in this area. After screening, Layer properties, the favorable attributes are again preferred, and finally the reservoir characteristics are predicted by the multi-attribute trend fitting technique.