Abstract
The research is focused on determining mineralogical composition of drilling cuttings by scanning electron microscope as well as imaging the sample surface of high resolution that allows studying the structural characteristics of the site. In addition, a number of other techniques permit obtaining information on chemical composition of sample in near-surface layers. The study in drilling cuttings by means of scanning microscopy has revealed the presence of titanium, iron, zirconium oxides, iron sulphide, barium sulphate. The former is a mineral that concentrates rare-earth elements, presumably monocyte, as well as uranium silicate, etc. The results obtained confirm the data of previous X-ray structural analysis, i.e. the study samples consist of alumosilicate matrix. Apart from silicon and aluminium oxides, the matrix includes such elements as Na, K, Mg. Such a composition corresponds to rock-forming minerals: quartz, albite, microcline, clinochlore, muscovite, anorthoclase.
Highlights
A large amount of waste is generated because of oil production activities, among them are drill cuttings and used drilling mud
X-ray structural analysis of drilling cutting samples was performed in the International Innovative Research Education Center (IIREC) “Uranium Geology”, Department of Geoecology and Geochemistry, Tomsk Polytechnic University: diffractometer Bruker D2 Phaser
The samples were studied in IIREC “Uranium Geology”, Department of Geoecology and Geochemistry, Tomsk Polytechnic University using scanning electron microscope (SEM) HitachiS-3400N with EDS BrukerXFlash 4010
Summary
A large amount of waste is generated because of oil production activities, among them are drill cuttings and used drilling mud. The bulk of the waste comprises mostly the drill cuttings that are extracted from the well to the surface. Millions of tons of drill cuttings are annually stored in the territory of Western Siberia [15]. It is stated that the quality of the environment is degraded in the areas of drilling operations due to drilling waste production [9, 13, 16, 18]. Drilling operations have a significant anthropogenic impact on all components of the environment. Disposal of drilling wastes is the main cause of deterioration of the environment in the areas of drilling operations [13]
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