Deviatova N. Resource saving technology of oil-well cements

The object of research - the processes of phase formation of Portland cement clinker based on calcium-aluminum-containing waste in the system CaO ‒ Al2O3 ‒ Cr2O3 ‒ Fe2O3. The aim of the dissertation is to develop resource-saving technology of cementing cement for "hot" wells based on aluminates, ferrites and calcium chromites using waste from the chemical industry. Research methods and equipment: thermodynamic, X-ray phase, differential thermal, electron microscopic, petrographic. Physico-mechanical and technical properties of the developed materials were determined in accordance with DSTU. Theoretical and practical results: on the basis of the formulated scientific positions and the received experimental data effective grouting binders with a complex of the set operational characteristics on the basis of compositions of four-component system CaO ‒ Al2O3 ‒ Cr2O3 ‒ Fe2O3 with use as starting raw materials of waste of water purification and waste "Severodonetsk Association of Nitrogen". Novelty: theoretically substantiated and experimentally proved the production of cements in the four-component system CaO ‒ Al2O3 ‒ Cr2O3 ‒ Fe2O3 with the use of raw materials from the chemical industry, which provides a set of specified performance characteristics. Degree of implementation: materials are introduced into the educational process of NTU "KhPI". Field of application: the results of the work can be used to solve new problems and promising areas of development for the development of warehouses for cements based on chemical waste.