Application of grout slurries with the defecate addition for effective well cementing

Maryna Petruniak¹, Victoriia Rubel¹, Vira Chevhanova¹, Svitlana Kulakova¹

¹National University “Yuri Kondratyuk Poltava Polytechnic”, Poltava, 36011, Ukraine

Min. miner. depos. 2021, 15(1):59-65

https://doi.org/10.33271/mining15.01.059

Full text (PDF)

ABSTRACT

Purpose. Research and substantiating the expediency of cement mix formulations of grout slurries with different Defecate additive content and their effective use when cementing the reservoirs prone to absorption of the cement slurry, as well as to prevent behind-the-casing flows and for cementing operations in the zone of abnormal pressures (hydraulic seam fracturing).

Methods. Analytical and experimental studies of the physical-chemical grout slurry properties are used: determining the influence of the Defecate additive content on the cement mixture technological properties; study of a change in the grout slurry rheological characteristics at various temperature conditions; testing the formulation of grout slurry with different rates of strength development; substantiating the economic efficiency of using the grout mixtures with the Defecate additive.

Findings. It has been revealed that the cement mixture fluidity increases by 10-20% with the addition of a Defecate in the proportion of 5-20%. With a further increase in the Defecate content, the stone strength deteriorates, and with a decrease, the grout slurry concentration increases. It has been found that when Defecate is added to the cement mixture in a proportion of 20%, the pumpability of the cement slurry doubles, that is, from 1.5 to 3 hours. The economic efficiency has been proved of using these mixtures during insulating activities in the well No. 122 of the Kulychykhynske NHKR (oil and gas condensate field). The improved formulations of grout slurry with the addition of a Defecate are recommended to be used during repair-insulation works for delimitation of producing reservoirs prone to absorption, behind-the-casing flows and hydraulic fracturing.

Originality.New dependences have been determined of the technological and rheological characteristics of grout slurries on the content of the Defecate additive, which makes it possible to set its optimal proportion.

Practical implications. The use of grout mixture based on the Defecate will expand the raw material base for obtaining lightweight grout slurries. The properties of such a solution make it possible to use a grout mixture for cementing wells in the zone of abnormal pressures, while reducing the costs for the process of reservoir delimitation.

Keywords: well, behind-the-casing flows, producing reservoir, grout slurry, Defecate

REFERENCES

Orlovskyi, V.M., & Pokhylko, A.M. (2017). Modified lightweight plugging material. Mineral Resources of Ukraine, (3), 40-43.
Horskyi, V.F. (2006). Grouting materials and mixtures. Chernivtsi, Ukraine: Print, 524 р.
Danyushevskiy, V.S., Aliev, R.M., & Tolstyh, I.F. (1987). Reference guide backfill materials. Moskva, Russia: Nedra, 373 p.
Bulatov, A.I., & Danyushevskiy, V.S. (1987). Grouting materials (p. 164-167). Moskva, Russia: Nedra.
Novohatskiy, D.F. (1972). Special oil-well cements. Burenie, (6), 26-28.
Gafarov, Sh.A., Shamaev, G.A., & Safonov, E.H. (2005). Features of the filtration of non – Newtonian oils in carbonate porous media. Oil Industry, (11), 52-54.
Rubel, V.P., & Petruniak, M.V. (2018). Evaluation of the effectiveness of intensification methods on the example of the conditions of the Bilskoye oil and gas condensate field. World Science, 6(34), 46-51.
Rubel, V.P., Petruniak, M.V., & Liashenko, A.V. (2018). Improving the efficiency of gas production intensification technology as exemplified by the Kolomatsk gas condensate field. International Trends in Science and Technology, (1), 57-60.
Vynnykov, Y., Manhura, A., Zimin, O., & Маtviienko, A. (2019). Use of thermal and magnetic devices for prevention of asphaltene, resin, and wax deposits on oil equipment surfaces. Mining of Mineral Deposits, 13(2), 34-40.https://doi.org/10.33271/mining13.02.034
Antipin, Yu.V., Lysenkov, A.B., Karpov, A.A., Tukhteev, P.M., Ibraev, P.A., & Stenechkin, Yu.N. (2007). Intensification of oil production from carbonate formations. Ufa Oil Industry, (7).
Gallyamov, I.M., Vakhitov, T.M., Shafikova, E.A., Apkarimova, G.I., Sudakov, M.S., & Samigullin, I.F. (2008). To the problem of applicability of polymer compositions at low temperatures. New in Geology and Development of Oil Fields of Bashkortostan, (120), 221-225.
Novohatskiy, D.F. (1972). Special oil-well cements. Burenie, (6), 26-28.
Novohatskiy, D.F., & Voloshin, V.A. (1978). Ways of improving the quality and prospects of production of cement materials to secure oil and gas wells. Burenie, (11), 19-22.
TU U729755.01-94. (1994). Portland cement of componentpalette for normal and moderate temperatures, 13 p.
Orlovskyi, V.M., Mykhailenko, S.H., & Luzhanytsia, O.V. (2010). New facilitated and easy grouting materials. Naukovyi Visnyk Ivano-Frankivskoho Natsionalnoho Universytetu Nafty i Hazu, (3), 10-14.
Luzhanytsia, O.V., Mykhailenko, S.H., Orlovskyi, V.M., & Martynov, D.V. (2006). Tamponade mix. Patent No. 13254, Ukraine.
Chatterjee, S., & Hadi, A.S. (2006). Regression analysis by example. Wiley Series in Probability and Statistics. Hoboken, New Jersey: John Wiley & Sons, 385 p.https://doi.org/10.1002/0470055464
Patsy, E. (2018). Advances in unconventional gas. Solutions to Meet Growing Gas Demand Worldwide. Retrieved from:www.hartenergy.com
Campbell, B.L., & Chmilowski, W. (1975). Effective stimulation of low-permeability gas wells in Western Canada. Journal of Canadian Petroleum Technology, 14(02), 17-22. https://doi.org/10.2118/75-02-01
Ko, S.C.M., Stanton, P.M., & Stephenson, D.J. (1985). Tertiary recovery potential of CO2 flooding in Joffre Viking Pool, Alberta. Journal of Canadian Petroleum Technology, 24(01), 36-43. https://doi.org/10.2118/85-01-01