首页>
外国专利>
Acoustic well logging device for detecting compressional and shear waves
Acoustic well logging device for detecting compressional and shear waves
展开▼
机译:用于探测压缩波和剪切波的声波测井装置
展开▼
页面导航
摘要
著录项
相似文献
摘要
A borehole logging system employs a compressional wave transmitter and a shear wave transmitter. The transmitters are alternately fired to impart compressional and shear waves into the formations surrounding the borehole. A bender-type receiver, spaced apart from the transmitter in the borehole is alternately gated so that the voltages across its pair of piezoelectric planar surfaces are subtracted during the expected time period of symmetrical motion of the receiver to provide a compressional wave output and added during the expected arrival time period of unsymmetrical motion of the receiver to provide a shear wave output.
展开▼