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Development of promising technological solutions in the construction wells

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Category: Content №3 2025

Last Updated on 25 June 2025

Published on 30 November -0001

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Authors:

A.O.Ihnatov*, orcid.org/0000-0002-7653-125X, Dnipro University of Technology, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

О.О.Aziukovskyi, orcid.org/0000-0003-1901-4333, Dnipro University of Technology, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Y.M.Stavychnyi, orcid.org/0000-0001-8583-2313, Public Company “Ukrnafta”, Kyiv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

S.A.Rybachuk, orcid.org/0009-0001-8177-204X, Public Company “Ukrnafta”, Kyiv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

I.K.Askerov, orcid.org/0000-0002-8398-0205, Dnipro University of Technology, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

D.Sala, orcid.org/0000-0003-1246-2045, AGH University of Krakow, Krakow, the Republic of Poland, е-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

* Corresponding author e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

повний текст / full article

Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2025, (3): 065 - 074

https://doi.org/10.33271/nvngu/2025-3/065

Abstract:

Purpose. Setting the parameters of drilling, flushing and cementing cycles of wells constructed in sedimentary rocks that are subject to integrity violations, absorption of drilling fluid and stuck drill pipes, as well as the development, based on these parameters, of effective methods for eliminating well complications.

Methodology. The geological structure of the deposits was studied taking into account geophysical and well studies. Conclusions regarding the complexity of the geological conditions in the well are based on statistical information. The technical and technological parameters of the devices for eliminating complications and cleaning the well were studied on a stand equipped with a ZIF-650M drilling rig, NB-4 and NB-32 pumps, pressure gauges, a flow meter, a tachometer, and a coordinate controller. Studies of the properties of washing liquids were carried out on the basis of standardized methods and instruments. Mathematical and physical modeling was used with results processed in MATHCAD and EXCEL.

Findings. The process of well construction was studied using the example of fields in the Dnipro-Donetsk depression. It has been proven that high quality of drilling, flushing and casing works will allow for efficient hydrocarbon production. Issues of technical and technological support for the elimination of stuck wells are considered. The features of bottomhole and wellbore flushing with a closed circulation system for drilling fluids have been studied. The characteristics of the processes of preparing a well for casing are given and regulations for carrying out work on cleaning complicated sections of the wellbore are proposed.

Originality. Based on the data on the peculiarities of well construction in the Dnipro-Donetsk Basin, it has been proven that a rational scheme for field development is based on the need to implement comprehensive programs for the construction of wells that exclude the occurrence of geological and technical complications.

Practical value. The results presented can serve as the basis for progressive methods for constructing wells that are located in clayey strata prone to the occurrence of sticking and cavities.

Keywords: well, flushing fluid, stuck drill pipes, rock, fastening

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