WebSummary We present a method of geophysical logging while tripping drill rods to produce logs similar to wireline logs. The process is autinmous in that it does not require any … Oil and gas are more resistive than the salty water that fills most deeply buried rocks. Engineers created two types of electric sondes; both of them measure … See more Quartz and carbonates, which compose the most common hydrocarbon reservoirs, have little or no intrinsic radioactivity. Shales, which often act as seals above … See more The speed at which sound travels through rock depends on its mineral com-position and porosity. An acoustic or sonic logging tool transmits a sound pulse into … See more Geoscientists and engineers have access to a wide variety of logging tools that provide much more than the basic information described above. Nuclear … See more
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Weband tool standoff from the APS sonde and the uranium-free gamma ray log from the HNGS sonde. The right track con-tains the near-to-array and near-to-far porosities; the bulk density and long-spaced photoelectric effect from the Litho-Density tool; and for comparison, a CNL thermal neu-tron porosity log made during a separate run. In the left WebMay 7, 1984 · ABSTRACT. The Suspension P-S Logging System is a new technique for measuring P and S-wave velocities in deep boreholes. The characteristic feature of this technique is that the downhole sonde contains both the electromagnetic vibration wave source and two receiver units separated by flexible tubing. The sonde suspended in a fluid … grant for replacement windows in scotland
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Webn. [Formation Evaluation] The section of a logging tool that contains the measurement sensors, as distinct from the cartridge, which contains the electronics and power supplies. WebSonic logging is a well logging tool that provides a formation’s interval transit time, designated as , which is a measure of a how fast elastic seismic compressional and shear … WebJul 1, 2024 · A transmitting sonde for acoustic logging is proposed, which can realize downhole azimuthal measurement. The phased arc array and the linear phased array are … grant for replacing windows