An experimental and theoretical method of calculating the damping ratio of the sucker rod column oscillation

Authors

DOI:

https://doi.org/10.15587/1729-4061.2016.66193

Keywords:

sucker rod column, dynamogram, oscillation coefficient, load, damping, oscillogram, approximation

Abstract

Despite the massive use of dynamograms to identify possible faults in downhole sucker rod pumps (DSRPs), frequent analysis of the deviation of the pumping mode from the optimal mode, and attempts to determine the column load of the sucker rod (SR), little if any attention had been given before this study to oscillation processes that significantly affect the column’s durability. In view of the expedience of considering the SR column as an oscillation model, the objective of the study consisted in developing a method of determining the column oscillation damping ratio on the basis of the obtained DSRP dynamograms. The study considered the nature of the dissipative forces and their impact on the character of the SR column damping. It has proven a reasonable possibility of studying the intensity of oscillations’ damping in defferent sections of the dynamograms. This was done by analysing real estuarine and abyssal dynamograms and approximation of oscillogramed sections in the form of periodic changes in the load factor of oscillations’ damping for particular column layouts. The developed method can be applied to analysing dynamograms of a particular well, whereas the determined damping ratios facilitate assessment of the SR column dynamism and establishment of the best modes of the DSRP operation to prevent resonance under actual operating conditions.

Author Biographies

Ivan Steliga, Ivano-Frankivsk National Technical University of Oil and Gas 15 Carpatska str., Ivano-Frankivsk, Ukraine, 76019

Associate professor

Department of Vital Functions Safety

Jaroslav Grydzhuk, Ivano-Frankivsk National Technical University of Oil and Gas 15 Carpatska str., Ivano-Frankivsk, Ukraine, 76019

PhD, Associate Professor

Department of Theoretical Mechanics

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

PhD, Associate Professor

Department of Oil and Gas Equipment

References

  1. Virnovskiy, A. S. (1971). Teoriya I praktika hlubinonasosnoy dobyche nefti. Moscow: Nedra, 184.
  2. Tripp, H. A. (1988). Mechanical Performance of Fiberglass Sucker-Rod Strings. SPE Production Engineering, 3 (3), 346–350. doi: 10.2118/14346-pa
  3. Waggoner, J. R. (1997). Insights from the downhole dynamometer database. Sandia National Laboratories Albuquerque, New Mexico. Available at: http://www.osti.gov/scitech/servlets/purl/456351
  4. Hakimyanov, M. I., Pachin, M. G. (2011). Funktsionalnye vozmozhnosti sovremennogo kontrollera avtomatizatsii shtangovyh glubinnonasosnyh ustanovok. Neftegazovoe delo, 2, 19–34. Available at: http://ogbus.ru/authors/Hakimyanov/Hakimyanov_5.pdf
  5. Oliinyk, A. P., Kopei, B. V., Zinchenko, Yu. S., Kopei, V. B. (2011). Vykorystannia yavyshcha rezonansu dlia komplektuvannia kolony nasosnykh shtanh. Rozvidka ta rozrobka naftovykh I hazovykh rodovyshch, 1 (38), 69–75.
  6. Jiang, M. Z., Dong, K. X., Xin, M., Liu, M. X. (2012). Dynamic Instability of Slender Sucker Rod String Vibration Characteristic Research. Advanced Materials Research, 550-553, 3173–3179. doi: 10.4028/www.scientific.net/amr.550-553.3173
  7. Jiang, M., Cai, Y., Lu, Y., Wang, D. (2013). Research on Wear Law of Rod String in Directional Well. Journal of Applied Sciences, 13 (21), 4676–4680. doi: 10.3923/jas.2013.4676.4680
  8. Romero, O. J., Almeida, P. (2014). Numerical simulation of the sucker-rod pumping system. Ingeniería e Investigación, 34 (3), 4–11. doi: 10.15446/ing.investig.v34n3.40835
  9. Lyskanych, M. V., Hrydzhuk, Ja. S., Steliga, I. I. (2015). Otsinka koefitsiientu dynamichnosti kolony nasosnykh shtanh ta vyznachennia umov nedopushchennia yii rezonansu. Vibratsii v tekhnitsi ta tekhnolohiiakh, tezy dop. XIV Mizhnarodnoi nauk.-tekhn. konf., Dnipropetrovsk: NHU, 84.
  10. Chelomey, V. N. (1979). Vibratsiya v tekhike:sSpravochnik. In 6 volumes. Vol. 2. Kolebaniya nelineynykh mekhanicheskikh system. Moscow: Mashinostroenie, 351.
  11. Darkov, A. V., Shpiro, G. S. (1969). Soprotivlenie materialov. Moscow: Vysshaya shkola, 734.
  12. Sitdikov, M. R. (2012). Ekspluatatsiya tsepnyh privodov shtangovyh skvazhinnyh nasosov v OAO ANK «Bashneft». Neftegazovoe delo, 6, 265–272. Available at: http://ogbus.ru/authors/SitdikovMR/SitdikovMR_1.pdf

Downloads

Published

2016-04-23

How to Cite

Steliga, I., Grydzhuk, J., & Dzhus, A. (2016). An experimental and theoretical method of calculating the damping ratio of the sucker rod column oscillation. Eastern-European Journal of Enterprise Technologies, 2(7(80), 20–25. https://doi.org/10.15587/1729-4061.2016.66193

Issue

Vol. 2 No. 7(80) (2016): Applied mechanics

Section

Applied mechanics

License

Copyright (c) 2016 Ivan Steliga, Jaroslav Grydzhuk, Andriy Dzhus

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

The consolidation and conditions for the transfer of copyright (identification of authorship) is carried out in the License Agreement. In particular, the authors reserve the right to the authorship of their manuscript and transfer the first publication of this work to the journal under the terms of the Creative Commons CC BY license. At the same time, they have the right to conclude on their own additional agreements concerning the non-exclusive distribution of the work in the form in which it was published by this journal, but provided that the link to the first publication of the article in this journal is preserved.

A license agreement is a document in which the author warrants that he/she owns all copyright for the work (manuscript, article, etc.).
The authors, signing the License Agreement with TECHNOLOGY CENTER PC, have all rights to the further use of their work, provided that they link to our edition in which the work was published.
According to the terms of the License Agreement, the Publisher TECHNOLOGY CENTER PC does not take away your copyrights and receives permission from the authors to use and dissemination of the publication through the world's scientific resources (own electronic resources, scientometric databases, repositories, libraries, etc.).
In the absence of a signed License Agreement or in the absence of this agreement of identifiers allowing to identify the identity of the author, the editors have no right to work with the manuscript.
It is important to remember that there is another type of agreement between authors and publishers – when copyright is transferred from the authors to the publisher. In this case, the authors lose ownership of their work and may not use it in any way.