发明名称 SONIC LOGGING TOOL INCLUDING RECEIVER AND SPACER STRUCTURE.
摘要 <p>A formation logging tool having a substantially continuous central mandrel with regularly spaced mass blocks disposed thereon, at least some of the mass blocks carrying sensors such as receivers. By adopting this structure, the tool can be made to behave as a mass-spring structure and its flexural and extensional behaviour controlled such that its dispersion curve does not extend into the dispersion curve of the formation to be logged. The structure can be applied to the whole of the logging tool or just to the receiver section and/or any spacer section between the receiver and the transmitter section.</p>
申请公布号 MXPA03003723(A) 申请公布日期 2003.07.28
申请号 MX2003PA03723 申请日期 2000.11.16
申请人 SCHLUMBERGER TECHNOLOGY B.V. 发明人 TASHIRO, HITOSHI
分类号 G01V1/52;(IPC1-7):G01V1/52 主分类号 G01V1/52
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