波阻抗特征分析技术在储层厚度预测中的应用

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英文篇名：APPLICATION OF WAVE IMPEDANCE CHARAC TERISTIC ANALYSIS IN RESERVOIR THICKNESS PREDICTION 中文刊名：天然气工业 英文刊名：Natural Gas Industry 作者：徐俊彦 ; 段新华 英文作者：Xu Junyan and Duan Xinhua (3rd Petroleum Prospecting and Exploration Brigade ; North China Petroleum Bureau). 中文关键词：阻抗特征波 ; 地震解释 ; 砂岩层 ; 储层厚度 ; 储层预测 英文关键词：Wave impedance characteristic ; Seismic interpretation ; Sandstone formation ; Reservoir thickness ; Reservoir prediction 出版日期：2001-12-30 机构：中国石化新星公司华北石油局三普物研所 ,中国石化新星公司华北石油局三普物研所 年：2001 期：S1 出版单位：天然气工业

摘要

储层厚度预测的核心技术是波阻抗特征分析技术。针对鄂尔多斯盆地北部上古生界储集层属于低孔隙度、特低渗透性砂岩、厚度小、横向变化大的特点 ,以BCI反演波阻抗剖面为基础 ,以波阻抗曲线特征分析技术为核心 ,将地震、地质、测井紧密结合 ,找出砂岩层反演波形的规律 ,类比外推 ,用于储层厚度预测 ,有效地预测了鄂尔多斯盆地北部某区块山西组和下石盒子组 10m以上的储层厚度 ,指出了该工区储层有利分布区 ,为寻找新的含气区和天然气储量计算提供了重要依据
The principal technique of reservoir thickness prediction is wave impedance characteristic analysis.The Upper Paleozoic reservoir in North E'erduosi Basin is characterized as low porosity and super-low permeability sandstone with a small and changeable thickness.In the paper,based on broadband constraint inversion (BCI) wave impedance section,in combination with the data on seismic exploration,geology and well logging the change rule of inversion waveshape of sandstone is found mainly by use of wave impedance curve charateristic analysis,then through analogy and extrapolation,the reservoirs with thicknesses of more than 10m in Shanxi Formation and Shihezi Formation at a certain tract in North E'erduosi Basin are predicted and then the distribution of beneficial reservoirs at the tract is pointed out,thus providing an important basis for prospecting new gas-bearing areas and estimating gas reserves.

引文

1　何晓菊等.鄂尔多斯盆地中北部储层预测技术及应用.北京:石油工业出版社,2000
    2　潘存焕等.鄂尔多斯盆地上古生界含气砂岩体综合预测目标处理解释技术.天然气工业,1998(5)18
    3　李宝华等.宽带约束反演的实际应用效果分析.石油物探.1994,第3期