Since P-Wave can not be suppressed in dipole shear wave log in slow formation, there are some difficulties in picking the first S-Wave arrival.

在慢速地层中偶极横波测井不能很好地压制纵波，致使横波首波的检测存在一定的难度。

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The results show that the method can skip over the P-Wave and exactly pick the first S-Wave arrival in dipole shear wave log in slow formation.

实际资料处理结果表明，该方法可以跳过慢速地层中偶极横波测井的纵波而检测横波初至。

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Introduced are principle and method of applying Stoneley wave and the anisotropy of shear wave picked from the dipole shear wave image logging to evaluate the fracture effectivity of igneous rock.

介绍了利用从偶极声波成像测井资料中提取的斯通·利波和横波各向异性，对火成岩裂缝的有效性进行评价的原理和方法。

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