The article presents results achieved by the RN-BashNIPIneft LLC in the field of development and application of X-ray scattering techniques for solving practical problems that arise when studying core material and sediments formed during oil transportation. It is shown that in order to get correct and accurate information on mineral composition of rocks containing hydrocarbon raw material, it is necessary not only to precisely measure x-ray spectra, but also to use in calculations optimized mineral’s atomic structure parameters for the core. It was found that the comparison of the quantitative X-ray phase analysis (XPA) results with the elemental composition data allows clarifying the core mineral composition. The developed approach based on X-ray shooting with inclined surveys allows detecting and evaluating low-content clay and iron minerals which are not analyzable in conventional XPA. For corrosion sediments that deposit on oil and gas equipment and complicate the transportation of oil an approach has been developed that allows determining not only the type and assay of minerals but also the type of their formation (natural or man-made). This approach includes taking into account instrumental line widening and comparative analysis of X-ray spectra of natural minerals and minerals deposited on borehole equipment. It has been shown that obtaining correct XPA information about deposits is important when establishing mechanisms of destruction of failed equipment and when optimizing scale inhibitors for specific wells.
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