منابع مشابه
Mineralogy from Geochemical Well Logging
-Multivariate statistical analyses of geochemical, mineralogical, and cation-exchange capacity (CEC) data from a Venezuelan oil well were used to construct a model which relates elemental concentrations to mineral abundances. An r-mode factor analysis showed that most of the variance could be accounted for by four independent factors and that these factors were related to individual mineral com...
متن کاملApplication of the Spread - Spectrum Technique in Well Logging
This paper presents the novel concept of employing the noise insensitive spread-spectrum technique in well logging. The proposed design of a spread-spectrum device improves the performance of well logging tools, particularly within highly noisy environments. The heart of the device is a shift register which generates a pseudorandom binary code sequence. A coder is connected to the transmitter a...
متن کاملDevelopment of a Single-Borehole Radar for Well Logging
An impulse-based single-borehole radar prototype has been developed for well logging. The borehole radar is comprised of subsurface sonde and surface equipment. An armored 7-conductor well logging cable is used to connect subsurface sonde and surface equipment which is well compatible with the other well logging instruments. The performance experiments of the prototype have been conducted in a ...
متن کاملNMR Oil Well Logging: Diffusional Coupling and Internal Gradients in Porous Media by
NMR Oil Well Logging: Diffusional Coupling and Internal Gradients in Porous Media
متن کاملAvian responses to selective logging shaped by species traits and logging practices.
Selective logging is one of the most common forms of forest use in the tropics. Although the effects of selective logging on biodiversity have been widely studied, there is little agreement on the relationship between life-history traits and tolerance to logging. In this study, we assessed how species traits and logging practices combine to determine species responses to selective logging, base...
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ژورنال
عنوان ژورنال: Journal of the Japanese Association for Petroleum Technology
سال: 1942
ISSN: 1881-4131,0370-9868
DOI: 10.3720/japt.10.230