I.A. Alenkin, T.T. Belova, R.R. Zakirov, A.Kh. Kabirova
DOI: https://doi.org/10.25689/NP.2024.2.156-176
Abstract
The efficiency of the fracturing process depends on many factors, including the compatibility of the fracturing fluid with the reservoir system. After hydraulic fracturing and well flushing, part of the destroyed gel may remain in the reservoir formation and react with process fluids during geological and technical measures. As a result of the reactions, the processes of so-called repeated or "secondary crosslinking" of the destroyed gel can occur, and, as a result, the colmatation of the pore space of the reservoir reservoir by "crosslinking" systems. To establish the fact of "secondary crosslinking", rheological studies are carried out to analyze changes in the dynamic viscosity of samples of the destroyed gel with the addition of process fluids. As a result of the work, the risks of repeated "crosslinking" for a system based on a xanthan biopolymer were assessed.
References
2. Salimov V.G., Takhautdinov Sh.F., Nasybullin A.V., Salimov O.V. Osnovy tekhnologii gidravlicheskogo razryva plastov [Fundamentals of hydraulic fracturing technology]. Kazan: Fen Publ., pp.3-4 ISBN 978-5-9690-0877-9 (in Russian)
3. Mukhametshin I.R., Nukhaev M.T., Semikin D.A. Monitoring lateral wells with multi-stage fracturing using the chemical markers embedded in completion equipment. Neftyanoe Khozyaistvo [Oil Industry]. 2018, No. 3, pp. 46-49. (in Russian)
4. Zhuchkov S.U., Kanevskaya R.D. Experience of simulation and efficiency estimation of multi-fractured horizontal wells on Verhne-Shapshinskoye field. Neftyanoe Khozyaistvo [Oil Industry]. 2013, No. 7, pp. 92-96. (in Russian)
5. Antonov D.V., Kondratiev S.A., Zhukovsky A.A., Kochneva T.S. Experience of hydraulic fracturing in the deposits of Perm region and the main directions of improving its efficiency. Neftyanoe Khozyaistvo [Oil Industry]. 2014, No. 3, pp. 70-72. (in Russian)
6. Mordvinov V.A., Poplygin V.V. Intensifikaciya otborov nefti iz dobyvayushchih skvazhin [Oil well stimulation]. Perm: Perm National Research Polytechnical University Publ., 2013, 74 p. (in Russian)
7. Garshina O.V. et al. Development, application of invert emulsion drilling fluids and prospects of their reuse. Neftyanoe Khozyaistvo [Oil Industry]. 2011, No. 10, pp. 56–59. (in Russian)
8. Nekrasova I.L. et al. Tekhnologiya utilizacii otrabotannyh invertno-emul'sionnyh burovyh rastvorov [Technology of waste invert-emulsion mud management]. Territoriya Nefetgaz [Oil and Gas Territory]. 2013, No. 6, pp. 108–110. (in Russian)
9. Nekrasova I.L. et al. Tekhnologiya podgotovki stvola skvazhiny k osvoeniyu posle vskrytiya produktivnyh plastov na invertnoemul'sionnyh burovyh rastvorah. [Wellbore pretreatment technology prior to well production testing after their drilling with invert-emulsion mud]. Neft, Gaz, Novacii [Oil, Gas, Innovations]. 2015, No. 3, pp. 59–63. (in Russian)
10. Okromelidze G.V. et al. Izuchenie processa dispergirovaniya vyazkouprugih sostavov pod vliyaniem reagentov destruktorov razlichnoj himicheskoj prirody [Study of viscoelastic system dispersion process when exposed to breaking agents with various chemical properties]. Bashkirskij himicheskij zhurnal [Bashkir Chemical Journal]. 2016, No. 2, pp. 32–40. (in Russian)
11. Teptereva G.A. et al. Usloviya probopodgotovki sul'fitnyh shchelokov dlya obnaruzheniya gemicellyuloz metodom tonkoslojnoj hromatografii [Conditions of sulfite waste liquor sample preparation for hemicellulose detection by thin-layer chromatography]. Bashkirskij himicheskij zhurnal [Bashkir Chemical Journal]. 2016, No. 2, pp. 47–55. (in Russian)
12. Fefeflov U.V., Garshina O.V., Shakharova N.V., Okromelidze G.V. RF Patent 2386665, С 09К 8/584, Е 21В 43/22. Termostojkij vyazkouprugij sostav dlya zakanchivaniya i remonta skvazhin [Heat-resistant viscoelastic system for well completion and workover]. Patent holder: LUKOil Engineering. No.2008144854; appl. on 13.11.2008; publ. in 2010, Bull. No.11. (in Russian)
13. Okromelidze G.V., Nekrasova I.L., Garshina O.V., Khvoshchin P.A. RF Patent 2575384, С 09К 8/42, Е21В 43/22. Sposob glusheniya skvazhin i vyazkouprugij sostav dlya ego osushchestvleniya [Well killing method and viscoelastic system to kill a well]. Patent holder: LUKOil Engineering. No.2014154574/03; appl. on 31.12.2014; publ. in 2016, Bull. No. 5. (in Russian)
14. Ovchinnikov V.P., Yakovlev I.G., Sirin A.V. Using peculiarities of inhibited biopolymer mud for completion of productive stratum containing clays with various chemical activity (example of Krasnoyarsk territory’s fields). Bureniye i Neft [Drilling and Oil]. 2014, No.1, pp. 44–48. (in Russian)
15. Okromelidze G.V. et al. Tekhnologiya glusheniya skvazhin s ispol'zovaniem vyazko-uprugih sostavov s reguliruemymi srokami destrukcii [Well killing technology using viscoelastic systems with adjusted degradation period]. SPE 171302 paper, published in OnePetro. 2014, 11 p. (in Russian and English)
16. Shilov I.A., Nevolin A.I. Selection of the most efficient fluids of wells killing for reservoir rocks of Perm region deposits and assessment of their impact during laboratory simulation]. Neftepromyslovoye Delo [Petroleum Engineering]. 2017, No.12, 94 p. (in Russian)
17. Ponomareva I.N., Ilyushin P.U. Results of research for improving well-killing technology. Neftyanoe Khozyaistvo [Oil Industry]. 2017, No.1, 112 p. (in Russian)
18. Silin M.A., Magadova L.A., Chirina L.A. Issledovanie vliyaniya ionov bora i mineral'nyh solej, soderzhashchihsya v vode, na kachestvo polisaharidnyh zhidkostej GRP [Studying the effect of boron ions and mineral salts in water on polysaccharide fracking fluid quality]. Scientific collection of Oil and Gas Industry, No. 12013 (in Russian)
Authors
I.A. Alenkin, Lab technician, Engineer, Oil-field chemistry laboratory, Almetyevsk State University of Technology – Higher Petroleum School
2, Lenin Str., Almetyevsk, 423458, Russian Federation
E-mail: alenkin.cnti@yandex.ru
T.T. Belova, Lab technician, Engineer, Oil-field chemistry laboratory, Almetyevsk State University of Technology – Higher Petroleum School
2, Lenin Str., Almetyevsk, 423458, Russian Federation
E-mail: belova.tatiana92@mail.ru
R.R. Zakirov, Engineer, Oil-field chemistry laboratory, Almetyevsk State University of Technology – Higher Petroleum School
2, Lenin Str., Almetyevsk, 423458, Russian Federation
E-mail: Zakirov-rinat-94@mail.ru
A.Kh. Kabirova, PhD, Senior Researcher, Formation Evaluation and Well Test Department, TatNIPIneft Institute – PJSC TATNEFT
186a, Sovetskaya Str., Almetyevsk, 423458, Russian Federation
E-mail: ahkabirova@tatnipi.ru
For citation:
I.A. Alenkin, T.T. Belova, R.R. Zakirov, A.Kh. Kabirova Otsenka vliyaniya tekhnologicheskikh zhidkostey, zakachivayemykh v nagnetatel'nyye skvazhiny, na vozmozhnost' izmeneniya reologicheskikh parametrov zhidkostey GRP posle destruktsii [Assessment of the effect of process fluids injected into injection wells on the possibility of changing the rheological parameters of hydraulic fracturing fluids after destruction]. Neftyanaya Provintsiya, No. 2(38), 2024. pp. 156-176. DOI https://doi.org/10.25689/NP.2024.2.156-176. EDN KKBVSU (in Russian)