| Issue |
E3S Web of Conf.
Volume 389, 2023
Ural Environmental Science Forum “Sustainable Development of Industrial Region” (UESF-2023)
|
|
|---|---|---|
| Article Number | 01004 | |
| Number of page(s) | 7 | |
| Section | Materials Science Innovations, Green Chemistry and Emission Reduction | |
| DOI | https://doi.org/10.1051/e3sconf/202338901004 | |
| Published online | 31 May 2023 | |
Improvement of the well cementing technology, increasing the reliability of the annule isolation and preserving the permeability of the reservoir
1 Al-Baath University, Damascus - Aleppo Highway, Hims, Syria
2 North Caucasus Federal University, Stavropol, Kulakova str., 16/1, 355035, Russia Branch “Gazprom VNIIGAZ Stavropol”, Stavropol, Lenin street, 419, 355035, Russia
3 Tyumen Industrial University, 72, Melnikaite st., Tyumen, 625000, Russia
4 FSBI VSEGEI, Sredny pr., 74, St. Petersburg, 199106, Russia
* Corresponding author: shemelinaon@tyuiu.ru
The article presents measures to improve the quality of cementing the production string of high-performance wells. The relevance of the proposed technological solutions is substantiated. The results of experimental studies of the installation simulating the processes occurring during the thickening of the cement slurry under the action of gravitational forces are presented. An algorithm for creating overpressure on the wellhead during fastening of the production string is proposed. The compositions of process fluids are described, which increase the reliability of the annular space isolation and preserve the permeability of the reservoir, and provide the main data on the results of their laboratory studies. For cementing the annular space of the production string, the composition of the expanding cement slurry has been developed and the procedure for its preparation has been established. The proposed solution has low water separation and high sedimentation resistance; has adjustable rheological parameters. Cement stone is characterized by low gas permeability and high strength properties.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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