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偶极子横波测井采用偶极声源和定向接收技术,并结合单极技术,在硬和软两种地层中都可以直接提取纵波、横波和斯通利波的测量结果,拓宽了声波测井资料的应用领域。现在,声波测井资料已被广泛用于确定地下岩层的机械特性,用于计算岩石的各种弹性常数,结合地层各向异性分析,可对储层进行有效的气层识别、裂缝识别和压裂效果分析。应用实例表明,偶板子声波测井在低孔低渗裂缝性储层评价中是一种积极有效的方法,在吐哈油田收到了良好的效果,具有广阔的应用前景。
Dipole shear-wave logging uses dipole sources and directional reception techniques, combined with monopolar techniques, allows the measurement of longitudinal, transverse and Stoneley waves to be extracted directly in both hard and soft formations, broadening the acoustic measurements Well data applications. Acoustic well logging data have now been used extensively to determine the mechanical properties of subsurface formations and to calculate various elastic constants of the rock. Combined with the analysis of formation anisotropy, effective reservoir identification, fracture identification, Cracking effect analysis. The application example shows that the dipole sonic logging is a positive and effective method in the evaluation of fractured reservoirs with low porosity and low permeability, and has received good results in Tuha oilfield and has broad application prospects.