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Polymer resins for the production of lightweight self-generating proppants

https://doi.org/10.51890/2587-7399-2023-8-4-169-176

Abstract

The article considers the possibility of using self-generating lightweight proppants in the process of hydraulic fracturing (fracking). The relevance of this topic is due to the lack of low-density proppants on the market, which are necessary to retain fracture openings in remote areas. Proppant generation under reservoir conditions will improve the fracturing process and provide better fracture openings compared to the basic technology.
Aim. Investigation of different polymer reagents as feedstock for the formation of self-generating proppants.
Materials and methods. To evaluate the applicability of the proposed hypothesis, a polymer base, melamine carbamid resin, and an aqueous solution of oxalic acid as a hardener were used. Self-generation of proppant was carried out on a specialized stand under conditions when there is no agglomeration of polymer granules. Evaluation of physical and mechanical properties of the obtained granules was carried out in accordance with standard methods. The proppant pack conductivity methodology was used to evaluate propping capacity.
Results. As a result of laboratory investigations, it was revealed that the polymeric proppant formed in the process of generation has poor resistance to hydrochloric acid and does not meet the criteria for geometrical shapes. The cracks filled with the cure-generated proppant have low conductivity at pressures greater than 4000 PSI. It was also found that granules obtained in the process of generation have insufficient strength characteristics (90 % of granules are destroyed at a pressure of 5000 PSI).
Conclusion. High cost and insufficient performance characteristics of the obtained self-generating proppant granules make them unprofitable as propping agents. One should keep in mind the potential possibility of using this technology in the case of selecting an alternative polymer composition that allows to qualitatively increase the strength characteristics of the resulting propping agents.

About the Authors

A. L. Zinovyev
National Research Tomsk Polytechnic University
Russian Federation

Aleksey L. Zinovyev — Cand. Sci. (Chem.), Researcher of the laboratory “Chemical Engineering and Molecular Design”

30, Lenina ave., 634050, Tomsk/p>



E. Ya. Poletykina
National Research Tomsk Polytechnic University
Russian Federation

Ekaterina Ya. Poletykina — junior research assistant “Chemical Engineering and Molecular Design

30, Lenina ave., 634050, Tomsk



V. T. Novikov
National Research Tomsk Polytechnic University
Russian Federation

Victor T. Novikov — Cand. Sci. (Chem.), Associate Professor of the Research School of Chemical and Biomedical Technologies

30, Lenina ave., 634050, Tomsk



A. V. Churakov
Gazprom neft company group
Russian Federation

Artem V. Churakov — Head of the Competence Center for Development of Hydraulic Fracturing Technologies

3–5, Pochtamtamtskaya str., 190000, Saint Petersburg



D. A. Staritsin
Gazprom neft company group
Russian Federation

Dmitry A. Staritsin — Leader of Hydraulic Fracturing Technologies

3–5, Pochtamtamtskaya str., 190000, Saint Petersburg



A. A. Karpov
Gazprom neft company group
Russian Federation

Aleksey A. Karpov — Cand. Sci. (Tech.), Leader of business analysis

3–5, Pochtamtamtskaya str., 190000, Saint Petersburg



R. R. Khusainov
Gazprom neft company group
Russian Federation

Radmir R. Khusainov — Cand. Sci. (Tech.), Leader of Innovative Technology Programs

3–5, Pochtamtamtskaya str., 190000, Saint Petersburg



M. S. Sandyga
Gazprom neft company group
Russian Federation

Mikhail S. Sandyga — Cand. Sci. (Tech.), Leader of Research Organization

3–5, Pochtamtamtskaya str., 190000, Saint Petersburg



D. A. Tolstykh
Gazprom neft company group
Russian Federation

Dmitry A. Tolstykh — Leader of new materials

3–5, Pochtamtamtskaya str., 190000, Saint Petersburg



References

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Review

For citations:


Zinovyev A.L., Poletykina E.Ya., Novikov V.T., Churakov A.V., Staritsin D.A., Karpov A.A., Khusainov R.R., Sandyga M.S., Tolstykh D.A. Polymer resins for the production of lightweight self-generating proppants. PROneft. Professionally about Oil. 2023;8(4):169-176. (In Russ.) https://doi.org/10.51890/2587-7399-2023-8-4-169-176

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ISSN 2587-7399 (Print)
ISSN 2588-0055 (Online)