CORRECTION FOR "NEW RESULTS IN RESISTIVITY WELL LOGGING", GEOPHYSICAL PROSPECTING 23, 426-448.*
نویسندگان
چکیده
منابع مشابه
Borehole Geophysical Logging in Unconsolidated Sediments
Over the last two decades, several advances have been made in the development and application of slim-hole geophysical sondes for use in groundwater, engineering, and environmental applications. This equipment is commonly used to provide qualitative (but detailed) estimates of grain size, sediment type, porosity, density, pore-water salinity, as well as bulk and shear moduli, to supplement geol...
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We investigated the potential of using a 24-electrode resistivity imaging apparatus for rapid reconnaissance surveys for natural-aggregate accumulation. The surveys were first calibrated at sites with known geometry of sand and gravel layers, which showed that subsurface accumulation of coarse material was accurately resolved with both 2and 4-m electrode spacing. The inverted absolute resistivi...
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There is low resistivity contrast between reservoir zone and host formation in geothermal fields, especially in areas where the technique of water injection is being carried out. Therefore, in low contrast area, permittivity can be one of the important reservoir indicators besides resistivity. In this study, one EM tomography method of reconstructing the resistivity and permittivity from electr...
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We present a hybrid algorithm for solving inverse 3D resistivity logging measurement simulation problem with DC and AC tools in deviated wells. The term “simulation of measurements” is widely used by the geophysical community. A quantity of interest, voltage, is measured at a receiver electrode located in the logging instrument. Computer simulations are used to explain obtained measurements. We...
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Controlled-source electromagnetics (CSEM) is an active geophysical technique sensitive to the electrical resistivity of the subsoil, with the peculiarity that the source producing the electromagnetic signal is a man-made device. It has been largely applied for offshore environments in hydrocarbon exploration due to the good penetration depth and resolution, although its application onshore is s...
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ژورنال
عنوان ژورنال: Geophysical Prospecting
سال: 1976
ISSN: 0016-8025,1365-2478
DOI: 10.1111/j.1365-2478.1976.tb00398.x