Abstract:

the relevance of the article is determined by the need to create durable and self-healing building materials for extreme conditions such as underground, underwater and high-altitude facilities. Biocrete is an innovative material capable of self-healing through the use of microorganisms that induce the deposition of calcium carbonate (MICP). This approach significantly increases the service life of concrete structures by healing cracks and reducing porosity. Biocrete has improved physical and mechanical characteristics, corrosion resistance, low permeability and water absorption, which makes it a promising solution for applications in extreme conditions such as underground and underwater construction, high-rise buildings and oil wells. However, despite its advantages, biocrete requires further research aimed at optimizing technology, reducing cost, and ensuring long-term microbial activity in the cement matrix. The purpose of the article is to conduct an overview analysis of biocrete technology based on microbiological precipitation of calcium carbonate (MICP), with a focus on its application in the oil industry. The research methods include an analysis of scientific literature and a patent search on MICP mechanisms, micro-organisms used, and innovative solutions for concrete modification. As a result of this review article, the main mechanisms of precipitation of calcium carbonate using microorganisms are considered, patent technologies for modifying concrete using microorganisms are described, which opens up new prospects for improving the properties of materials in the construction and oil industry.

Keywords: well cementing, microbiological method, calcium carbonate deposition, biomineralization, biocrete