摘要
交叉偶极子声波测井是测量地层纵波、横波和斯通利波的较好方法,在分析地层各向异性方面更是具有独特优势。低频斯通利波在渗透性地层出现的频散和能量衰减与地层原始渗透率有密切关系,可利用斯通利波信息估算地层的渗透率。文章根据近几年交叉偶极子声波测井在柴达木盆地实际应用情况进行了应用效果分析,认为交叉偶极子声波测井在油田中有很好的应用前景。
Cross-dipole Acoustic Logging is the best measurement of the formation wave-slowness,amplitude and attenuation coefficient of the compressional,shear and Stoneley wave types that may occur in array acoustic waveform data.Further more,it has special superiority in the evaluation of shear-wave azimuthally anisotropy.The dispersion and attenuation of low frequency Stoneley wave in the permeability formation have close relation to the original permeability.Besides,Stoneley wave information can also be used in the evaluation of permeability.Based on the effect analysis of the implication in Chaidamu Basin,we can form a conclusion that the Cross-dipole Acoustic Logging will have a broad application prospect in oilfield.
出处
《石油仪器》
2006年第3期64-66,100,共3页
Petroleum Instruments
关键词
偶极声波
横波
斯通利波
各向异性
渗透率
dipole acoustic,shear,Stoneley-wave,anisotropy,permeability
