Examining the current of drilling mud in a power section of the screw down­hole motor

Authors

DOI:

https://doi.org/10.15587/1729-4061.2018.126230

Keywords:

screw down-hole motor, pair "rotor-stator", drilling mud, modelling, parametric fields

Abstract

By using the module Flow Simulation from the programming environment SolidWorks, we obtained parametric fields of turbulent flow of drilling mud in the subject of research – a power section of the screw down-hole motor (SDM). The subject of research is the characteristics of turbulence of the drilling mud flow. An analysis of the obtained model parametric fields of turbulent flow of drilling mud in the power section of SDM shows two distinctive regions that differ by the characteristics of turbulence in the drilling mud current. These sections are localized in the neighborhood of contact points "rotor-stator", and along the distance between these points. In the first section, the developed flow turbulence almost disappears; the dissipation of flow energy significantly decreases. In the second section, there is a developed turbulence of drilling mud, which causes increased dissipation of flow energy and a possible damage to the stator by a solid phase of drilling mud. Vorticity of drilling mud in this region reaches the maximum values of 1,875.7 s-1. Turbulent time scale in the second region reaches the minimum values of 0.001 s, and the metrical scale of pulsations is comparatively small – from 0.011 to 5.666 m, indicating the presence of small-scale turbulent vortices and the elevated dissipation of flow energy. Thus, the second section is the most vulnerable to a damage to the stator by a solid phase of drilling mud.

An endoscopic examination of the surface of the SDM stator, which we conducted, revealed damage to its working surface, specifically deep scratches, guide scratches, cavities. Localization of damage is from the middle and to the tail part of the power section at a distance of 2.53−4.78 m from the beginning of the power section of SDM.

The models obtained are recommended for using in hydraulic calculations of SDM, for choosing a rational mode of its operation

Author Biographies

Volodymyr Biletsky, National Technical University "Kharkiv Polytechnic Institute" Kyrpychova str., 2, Kharkiv, Ukraine, 61002

Doctor of Technical Sciences, Professor

Department of oil, gas and condensate extraction

Vitaliy Vitryk, BUROVA TEKHNIKA, Research and Technical Enterprise, LTD Lesi Ukrainki blvd., 34, Kyiv, Ukraine, 36011

PhD, General Director

Yuliya Mishchuk, BUROVA TEKHNIKA, Research and Technical Enterprise, LTD Lesi Ukrainki blvd., 34, Kyiv, Ukraine, 36011

Process Engineer of technological department

Mykhailo Fyk, National Technical University «Kharkiv Polytechnic Institute» Kyrpychova str., 2, Kharkiv, Ukraine, 61002

PhD, Associate Professor

Department of oil, gas and condensate extraction

Andriy Dzhus, Ivano-Frankivsk National Tachnical Univercity of Oil and Gas Karpatska str., 15, Ivano-Frankivsk, Ukraine, 76019

Doctor of Technical Sciences, Professor

Department of oil and gas equipment

Julia Kovalchuk, Kyiv National University of Construction and Architecture Povitroflotsky ave., 31, Kyiv, Ukraine, 03037

PhD, Associate Professor

Department of Chemistry

Taras Romanyshyn, Ivano-Frankivsk National Technical University of Oil and Gas Karpatska str., 15, Ivano-Frankivsk, Ukraine, 76019

PhD, Associate Professor

Department of oil and gas equipment

Andriy Yurych, Ivano-Frankivsk National Technical University of Oil and Gas Karpatska str., 15, Ivano-Frankivsk, Ukraine, 76019

PhD, Associate Professor

Department of drilling oil and gas wells

References

Ismakov, R., Zakirov, N., Al-Suhili, M., Toropov, E. (2015). Issledovanie raboty pary «elastomer – metall» silovoy sekcii vintovogo zaboynogo dvigatelya. Sovremennye problemy nauki i obrazovaniya, 2.

Ovchinnikov, V. P., Dvoynikov, M. V., Bud'ko, A. V., Prolubshchikov, S. V. (2007). K voprosu prodleniya sroka sluzhby vintovyh zaboynyh dvigateley. Burenie i neft', 10, 40–46.

Andoskin, V. N., Vyguzov, A. M., Kuznecov, A. V., Hayrullin, D. N., Novikov, R. S. (2014). Vintovye zaboynye dvigateli firmy «Radius-Servis». Burenie i neft', 11, 50–53.

Ba, S., Pushkarev, M., Kolyshkin, A., Song, L., Yin, L. L. (2016). Positive Displacement Motor Modeling: Skyrocketing the Way We Design, Select, and Operate Mud Motors. Abu Dhabi International Petroleum Exhibition & Conference. doi: 10.2118/183298-ms

Syzrantseva, K., Syzrantsev, V. (2016). Load on Multipair Contact Zones of Operating Parts of Screw Pumps and Motors: A Computer Analysis. Procedia Engineering, 150, 768–774. doi: 10.1016/j.proeng.2016.07.104

Weng, W., Yue, W., Shi, X., Huang, Y. (2013). Failure Analysis of the Rotor of Downhole Drilling Motors. ICPTT 2013. doi: 10.1061/9780784413142.089

Epikhin, A. V., Ushakov, A. V., Barztaikin, V. V., Melnikov, V. V., Ulyanova, S. (2015). Experimental research of drilling mud influence on mud motor mechanical rubber components. IOP Conference Series: Earth and Environmental Science, 27, 012051. doi: 10.1088/1755-1315/27/1/012051

Ismakov, R., Al-Suhili, M. (2015). Issledovanie vliyaniy razlichnyih reagentov na rabotu silovoy sektsii vintovyih zaboynyih dvigateley. Elektronnyy nauchnyy zhurnal «Neftegazovoe delo», 1, 64–78.

Sazonov, I. A., Mokhov, M. A., Demidova, A. A. (2016). Development of Small Hydraulic Downhole Motors for Well Drilling Applications. American Journal of Applied Sciences, 13 (10), 1053–1059. doi: 10.3844/ajassp.2016.1053.1059

Delpassand, M. S. (1999). Stator Life of a Positive Displacement Downhole Drilling Motor. Journal of Energy Resources Technology, 121 (2), 110. doi: 10.1115/1.2795065

Biletskyi, V., Landar, S., Mishchuk, Y. (2017). Modeling of the power section of downhole screw motors. Mining of Mineral Deposits, 11 (3), 15–22. doi: 10.15407/mining11.03.015

SOLIDWORKS Flow Simulation. Available at: http://www.solidworks.com/sw/products/simulation/flow-simulation.htm

The Future of SolidWorks Has ‘Always’ Been in Your Hands. Available at: http://blog.dasisolutions.com/2011/09/27/the-future-of-solidworks-has-always-been-in-your-hands/

Ludwig, B., Clemens, S. (1998). Lehrbuch der Experimental-physik. Band 1: Mechanik, Relativität, Wärme. Berlin.

Frost, W., Moulden, T. H. (Eds.) (1977). Handbook of Turbulence. Vol. 1. Fundamentals and Applications. Springer. doi: 10.1007/978-1-4684-2322-8

Kurbackiy, A. F. (2000). Vvedenie v turbulentnost'. Novosibirsk, 118.

O’Neill, P. L., Nicolaides, D., Honnery, D., Soria, J. (2004). Autocorrelation Functions and the Determination of Integral Length with Reference to Experimental and Numerical Data. 15th Australasian Fluid Mechanics Conference. Available at: https://www.researchgate.net/publication/253210572_Autocorrelation_Functions_and_the_Determination_of_Integral_Length_with_Reference_to_Experimental_and_Numerical_Data

Monin, A. S., Yaglom, A. M. (1992). Statistical hydromechanics: the theory of turbulence. Мoscow: Science. Ch. Ed. fiz.-mat. lit., 695.

Downloads

Published

2018-03-16

How to Cite

Biletsky, V., Vitryk, V., Mishchuk, Y., Fyk, M., Dzhus, A., Kovalchuk, J., Romanyshyn, T., & Yurych, A. (2018). Examining the current of drilling mud in a power section of the screw down­hole motor. Eastern-European Journal of Enterprise Technologies, 2(5 (92), 41–47. https://doi.org/10.15587/1729-4061.2018.126230

Issue

Section

Applied physics