Technological application of cavitating jet streams in the oil and gas industry

UDK: 622.276.5.05
DOI: 10.24887/0028-2448-2019-11-130-133
Key words: cavitation generator, nose, decolmatation, dispergation, scale inhibitors, bottom-hole cleaning, arrangement
Authors: M.V. Оmelyanyuk (Kuban State Technological University, RF, Armavir), I.A. Рakhlyan (Kuban State Technological University, RF, Armavir)

Cavitation is accompanied by numerous secondary effectsю It is a powerful factor in intensifying the processes of dispergation, emulsifying, homogenization, cleaning of deposits etc. In this article authors generalized their long-term experience on the development of science-based theoretical and technological solutions in the equipment design and technology development using the cavitation jet flow to solve the problems of the oil and gas industry. We proposed multicomponent dispersed media (drilling muds and cement slurry) using cavitation, and achieved significant positive results in the processes of wells construction and workover. Cleaning of production and tubing strings from deposits with different chemical composition and strength cuts down capital expenditure and operating costs for replacement and repair of equipment, and increases the overhaul interval. We designed improved oil recovery methods by treatment of near-wellbore zones of the productive formation during vibrowave intensification or complex physical-chemical decolmatation. We developed technologies for bottom-hole cleaning from compacted cemented clay-sand plugs, completely or partially overlapping the perforation interval, including depression.

The proposed technical solutions were tested in industrial objects of the oil and gas industry in Krasnodar and Stavropol, Rostov, Tyumen, Astrakhan, Sverdlovsk and Volgograd regions, Republics of Adygea, Kalmykia and Komi, in Khanty-Mansiysk and Yamal-Nenets autonomous districts. Scientific novelty and uniqueness of the offered devices and technologies is confirmed by patents of the Russian Federation and certificates on databases.


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