分频解释技术在塔河油田储层预测中的应用  

Application of frequency division interpretation technique to reservoir prediction in Tahe oilfield

作　　者：朱定[1] 孙素琴 蒋进勇[1] 

机构地区：[1]中国石油化工股份有限公司西北油田分公司石油勘探开发研究院,新疆乌鲁木齐830011

出　　处：《石油与天然气地质》2010年第1期49-53,共5页Oil & Gas Geology

摘　　要：塔河油田石炭系卡拉沙依组砂体埋藏深、厚度薄、横向变化大,砂体预测描述困难。利用分频技术对卡拉沙依组薄砂层进行了识别与描述,通过特定频率的相位,揭示了砂组多期沉积的边界,并利用调谐亮点对砂组的分布范围进行了追踪,通过首峰频率估算了砂组的厚度。分频解释技术达到了薄砂岩储集层的识别目的,提高了储层预测的精度。Sandbodies in the Carboniferous Kalashayi Formation in the Tahe oilfield are characterized by deep burial depth, small thickness and great lateral viariation, which makes it hard to predict them. In this paper, the frequency division interpretation tecnique is used to identify and characterize thin sandstones in the Kalashayi Formation. Boundaries of multi-stage deposits in the sandsonte unit are identified by using the phase of certain frequency. The distribution of sandstone is traced according to tuning ＂bright spot＂ and the thickness of sand- stone is calculated according to the frequency of first peak. The frequency division interpretation tecnique can successfully identify thin-sandstone reservoirs and improves the accuracy of reservoir prediction.

关 键 词：分频解释 薄层砂岩 砂体描述 储层预测 

分 类 号：TE321[石油与天然气工程—油气田开发工程]