«Oilfield engineering»

Experimental studies of the hydrophobizing properties of the compositions used in the technologies of a formation hydraulic fracturing

UDC: 622.276.66.002.34
DOI: 10.33285/0207-2351-2022-8(644)-21-26

Authors:

¹ Almetyevsk State Oil Institute, Almetyevsk, Republic of Tatarstan, Russia

Keywords: wettability, hydrophobization, adsorption activity, water saturation kinetics, hydraulic fracturing

Annotation:

One of the reasons for watering wells is the formation of a water-saturated zone in the bottomhole formation zone. The increased water saturation of the near-wellbore zone reduces its permeability for oil during joint filtration of oil and water, i. e. limits oil inflow from the formation to the well. Therefore, the search for ways to solve the problem of intensifying the inflow of oil into a production well is associated with a change in the filtration conditions for water in the bottomhole formation zone. The expected effect is to increase the oil production rate due to hydrophobization of the near-wellbore part of the formation and a corresponding increase of oil relative permeability in this zone.

To develop a methodology of studying the effect of chemicals on the change in wettability, the authors of the article carried out a choice of basic methods for determining the change of wettability; rationale of samples preparation methods and the use of certain fluids; integration of methods in the cycle of laboratory research.

Based on the results of the laboratory studies analysis of all studied cores of the Chernoozerskoye field, the most effective water repellent was determined, which is a mixture of nonionic surfactants in a water-alcohol solvent, and the effect of water salinity on the adsorption of oil active components in the presence of a water repellent was established.

Bibliography:

1. Obzor eksperimental’nykh metodov issledovaniya smachivayushchikh svoystv porod neftyanykh kollektorov / A.A. Ivanova, N.A. Mityurev, S.N. Shilobreeva, A.N. Cheremisin // Fizika Zemli. – 2019. – № 3. – S. 135–149.

2. Minakov I.I. Gidrofobizatsiya priskvazhinnoy zony plasta sostavami na osnove PAV s tsel’yu intensifikatsii dobychi nefti: dis. … kand. tekhn. nauk: 25.00.17. – M., 2001. – 152 s.

3. Fakhretdinov R.N. Gidrofobizatsiya prizaboynoy zony gidrofil’nykh kollektorov // Neft. khoz-vo. – 1999. – № 4. – S. 29–30.

4. Gorbunov V.A., Gumenyuk K.L., Paliy A.T. Primenenie gidrofobiziruyushchikh veshchestv dlya obrabotki prizaboynykh zon skvazhin // Neft. khoz-vo. – 1993. – № 10. – S. 64–65.

5. Minakov I.I. Promyslovye ispytaniya gidrofobiziruyushchikh kompozitsiy na Samotlorskom mestorozhdenii // Neft. khoz-vo. – 1997. – № 6. – S. 17–19.

6. Akhmetov R.T., Mukhametshin V.Sh., Andreev V.E. Prognoz pokazatelya smachivaemosti produktivnykh plastov po dannym promyslovoy geofiziki // Geologiya, geofizika i razrabotka neftyanykh i gazovykh mestorozhdeniy. – 2016. – № 2. – S. 21–25.

7. Zlobin A.A., Yushkov I.R. O mekhanizme gidrofobizatsii poverkhnosti porod-kollektorov nefti i gaza // Vestnik Permskogo un-ta. Geologiya. – 2014. – T. 3, № 24. – S. 68–79.

8. Zlobin A.A., Ebzeeva O.R. Zakonomernosti izmeneniya smachivaemosti porod-kollektorov po laboratornym dannym // Vestnik Permskogo natsional’nogo issledovatel’skogo politekhnicheskogo un-ta. Geologiya. Neftegazovoe i gornoe delo. – 2013. – № 8. – S. 52–61.

9. Zlobin A.A. Vliyanie smachivaemosti porod-kollektorov na koeffitsient izvlecheniya nefti // Neftepromyslovoe delo. – 2013. – № 9. – S. 49–53.

10. Mikhaylov N.N., Sechina L.S., Gurbatova I.P. Pokazateli smachivaemosti v poristoy srede i zavisimost’ mezhdu nimi // Aktual’nye problemy nefti i gaza. – 2011. – № 1. – S. 1–10.

11. Gurbatova I.P., Melekhin S.V., Fayruzova Yu.V. Osobennosti izucheniya smachivaemosti slozhno postroennykh karbonatnykh porod-kollektorov laboratornymi metodami // Vestnik Permskogo natsional’nogo issledovatel’skogo politekhnicheskogo un-ta. Geologiya. Neftegazovoe i gornoe delo. – 2016. – T. 15, № 20. – S. 240–245.

12. Vliyanie smachivaemosti na koeffitsient vytesneniya nefti / G.P. Khizhnyak, A.M. Mosheva, S.V. Melekhin, D.B. Chizhov // Vestnik Permskogo natsional’nogo issledovatel’skogo politekhnicheskogo universiteta. Geologiya. Neftegazovoe i gornoe delo. – 2013. – T. 12, № 6. – S. 54–63.

13. OST 39-180-85. Neft’. Metod opredeleniya smachivaemosti uglevodorodsoderzhashchikh porod. – M.: Izd-vo Minnefteproma, 1985. – 14 s.

14. Donaldson Е., Alam W. Wettability. Houston: Gulf Publising Company, 2008. – P. 2–27.

15. Pat. 2490614 Ros. Federatsiya, MPK G01N 15/08. Sposob opredeleniya differentsirovannoy smachivaemosti mineralov, vkhodyashchikh v sostav porod-kollektorov / V.A. Kuz’min, N.N. Mikhaylov, K.A. Motorova, I.I. Kuz’mina I.I; zayavitel’ i patentoobladatel’ Uchrezhdenie Rossiyskoy akademii nauk Institut problem nefti i gaza RAN. – № 2012108150/28; zayavl. 05.03.2012; opubl. 20.08.2013; Byul. № 23.

16. Pat. 2681973 Ros. Federatsiya, MPK E21B 49/00, G01N 13/00. Otsenka smachivaemosti poverkhnosti porovogo prostranstva gornykh porod na osnove diffuzionno-adsorbtsionnoy aktivnosti / L.M. Shishlova, S.P. Gvozdik; zayavitel’ i patentoobladatel’ FGBOU VO "Ufimskiy gosudarstvennyy neftyanoy tekhnicheskiy universitet". – № 2018114382; zayavl. 18.04.2018; opubl. 14.03.2019, Byul. № 8.

17. Pat. 2097743 Ros. Federatsiya, MPK G01N 15/08. Sposob opredeleniya parametra smachivaemosti porovykh kanalov porod-kollektorov / O.V. Kochkin; zayavitel’ i patentoobladatel’ AO "PermNIPIneft’". – № 96104869/25; zayavl. 12.03.1996; opubl. 27.11.1997.

18. Pat. 2682098 Ros. Federatsiya, MPK G01N 13/02; G01N 23/046. Sposob opredeleniya smachivaemosti gornykh porod metodom rentgenovskoy tomografii kerna / S.V. Galkin, A.A. Efimov, I.Yu. Kolychev [i dr.]; zayavitel’ i patentoobladatel’ FGBOU VO "Permskiy natsional’nyy issledovatel’skiy politekhnicheskiy universitet". – № 2018112528; zayavl. 06.04.2018; opubl. 14.03.2019, Byul. № 8.

19. Pat. 2248561 Ros. Federatsiya, MPK G 01 N 24/08. Sposob opredeleniya smachivaemosti porovoy poverkhnosti porod-kollektorov / A.A. Zlobin; zayavitel’ i patentoobladatel’ OOO "PermNIPIneft’". – № 2003136230/28; zayavl. 15.12.2003; opubl. 20.03.2005, Byul. № 8.

20. Pat. 2305277 Ros. Federatsiya, MPK G01N 24/08. Sposob opredeleniya smachivaemosti porovoy poverkhnosti neekstragirovannykh porod-kollektorov / A.A. Zlobin; zayavitel’ i patentoobladatel’ OOO "PermNIPInft’". – № 2006112435/28; zayavl. 13.04.2006; opubl. 27.08.2007, Byul. № 24.

21. Mishchenko I.T. Skvazhinnaya dobycha nefti. – M.: RGU nefti i gaza im. I.M. Gubkina, 2015. – 448 s.

22. Dmitrieva A.Yu., Musabirov M.Kh., Baturin N.I. Razvitie khimicheskikh tekhnologiy obrabotki prizaboynoy zony treshchinno-kavernoznykh karbonatnykh kollektorov i razrabotka strukturirovannykh emul’sionnykh otkloniteley kislot // Sb. nauch. tr. TatNIPIneft’. – M.: Neft. khoz-vo, 2021. – S. 203–207.

23. Shramm L.L. Poverkhnostno-aktivnye veshchestva v neftegazovoy otrasli. Sostav, svoystva, primenenie: per. s angl. yaz. / pod red. M.S. Podzorovoy, V.R. Magadova. – SPb.: TsOP "Professiya", 2018. – 592 s.

24. Ivanova L.V., Safieva R.Z., Koshelev V.N. IK-spektrometriya v analize nefti i nefteproduktov // Vestnik Bashkirskogo un-ta. – 2008. – T. 13, № 4. – S. 869–874.