Platov South-Russian State Polytechnic University (NPI) (Novocherkassk, Russia)

Yatsenko E. A., Head of Chair, Doctor of Engineering Sciences, Professor, e_yatsenko@mail.ru
Novikov Yu. V., Research Engineer, novikovtnv@yandex.ru
Trofimov S. V., Junior Researcher, 23zarj23@mail.ru
Klimova L. V., Associate Professor, Candidate of Engineering Sciences, Associate Professor, lyudmila.clim@yandex.ru

This study focuses developing a process for the heat treatment of drill cuttings from the oil industry and the synthesis of a silicatebased thermal insulation material—shlamolite—derived from these cuttings. Physical and chemical analyses were performed on drill cuttings generated during oil production at the Komsomolskoye oil and gas condensate field (Yamalo-Nenets Autonomous Okrug, Russian Federation). It was established that the drill cuttings are aluminosilicate materials containing crystalline phases of silicon dioxide, albite, calcium carbonate, and potassium chloride. A technology was developed for heat treatment at 900 °C in a tubular rotary electric furnace to remove organic impurities. X-ray phase analysis of the heat-treated drill cuttings revealed crystalline phases of quartz, anorthite, microcline, and hematite. Chemical composition analysis showed a reduction in loss on ignition from 13.32 to 3.32 %, indicating the removal of organic matter, physically and chemically bound water, and an increase in the content of primary structureforming oxides. The effect of heat treatment on particle size was also studied, revealing that high-temperature processing reduces drill cuttings particle size by an average of 29 %. A pilot sample of shlamolite was synthesized using geopolymer technology. The raw material mixture consisted of 75 % heat-treated drill cuttings, 22.5 % sodium silicate solution, 2.5 % sodium hydroxide, and 2.0 % finely dispersed aluminum powder (PAP-1 grade). The synthesis and evaluation of the physical and mechanical properties of shlamolite were carried out, including measurements of density, compressive strength, thermal conductivity, and porosity.

This work was supported by the Ministry of Science and Higher Education of the Russian Federation under the state assignment «Fundamental foundations of technologies for recycling waste from the oil producing industry of the Arctic zone of the Russian Federation with the production of effective building materials and propping agents» (FENN-2025-0001).

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