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Method and apparatus for measuring electromagnetic properties of materials in borehole environs and simultaneously determining the quality of the measurements
Method and apparatus for measuring electromagnetic properties of materials in borehole environs and simultaneously determining the quality of the measurements
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机译:用于测量钻孔环境中的材料的电磁特性并同时确定测量质量的方法和设备
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摘要
A wave propagation measurement-while-drilling system is used to measure selected formation and borehole parameters of interest and simultaneously provide indications of the quality of the selected measurements. One or more transmitter-receiver pairs are employed with the transmitter components operating at one or more frequencies. A model of the response characteristics of the borehole instrument is also employed. By using a redundant subset of the measurements, the parameters of interest are determined and an expected value of the remaining measurements is made. A comparison of the actual and expected values of the remaining measurements serves as a quality control check on the equipment and on the accuracy of the model.
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