西南石油大学学报（自然科学版）2011，Vol.33Issue(4)：69-72,4.DOI:10.3863/j.issn.1674-5086.2011.04.012
利用弹性模量计算含气饱和度方法研究
王磊 1王学琴 1吴胜 1曹睿1
作者信息
- 1. 中国石油川庆钻探工程公司测井公司,重庆 江北 400021
- 折叠
摘要
Abstract
The determination of gas saturation based on elastic modulus of formation enriches the methods of interpreting and evaluating reservoir, improves the interpretation accuracy of gas saturation which is a very important parameter. The elastic modulus can be determined by the velocities of compression and shear waves obtained from array sonic logging as well as the information of density. According to Gassmann equation which describes the relationship between the bulk modulus and shear modulus in a low frequency situation, an equation is established between the gas saturation and bulk modulus as well as shear modulus in cases of rock matrix, gas saturated and water saturated separately, thus gas saturation can be calculated. The processing software based on the model is developed. The examples of Sichuan central field show that the methods are sufficiently accurate and reliable.关键词
阵列声波测井/含气饱和度/体积模量/剪切模量Key words
array sonic logging/ gas saturation/ bulk modulus/ shear modulus分类
能源科技引用本文复制引用
王磊,王学琴,吴胜,曹睿..利用弹性模量计算含气饱和度方法研究[J].西南石油大学学报（自然科学版）,2011,33(4):69-72,4.
