Research of the cement stone phase transformations to form a long-lasting well support with a thermal gas impact on the formation
One of the trends for increasing the efficiency of hard-to-recover hydrocarbon reserves production of the Bazhenov formation is the technology of a thermal gas impact on kerogen-containing rocks. To ensure proper tightness of wells cementing in such conditions, it is necessary to use heat-resistant plugging materials that can withstand thermal destruction during cyclic temperature changes. The paper discusses the processes and mechanisms associated with the change in the phase composition of plugging materials under the influence of thermal corrosion, presents the results of X-ray phase studies that confirm their thermal stability.