Drilling wells taking into account the dynamic properties of rocks

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Authors:


Yu.O.Zhulay*, orcid.org/0000-0001-7477-2028, Institute of Transport Systems and Technologies of the National Academy of Sciences of Ukraine, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

O.D.Nikolayev, orcid.org/0000-0003-0163-0891, Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine, Dnipro, Ukraine, e-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. 2024, (2): 067 - 073

https://doi.org/10.33271/nvngu/2024-2/067



Abstract:


The application of high-frequency vibrations to a drill bit is a promising means of increasing rate of penetration in deep hard formations. The implementation of such drill bit high-frequency vibrations is possible by installing the cavitation hydraulic vibrator in the drill string in front of the rock-cutting tool.


Purpose.
Evaluation of resonant modes (frequencies of oscillations) for the dynamic interaction of the mud pressure in the drill string and the drill bit longitudinal vibrations in case of contact with the rock being destroyed while drilling using the cavitation hydraulic vibrator; comparative analysis of the effectiveness of using a high-frequency mechanical vibrator and a cavitation hydraulic vibrator in case of drilling in hard rocks.


Methodology.
The research is based on a comparative analysis of the amplitudes and power spectral density of mud pressure oscillations of the mud and vibration accelerations in the drill bit cross section of drill string.


Findings.
The results are presented in the form of amplitude spectra and power spectral densities of mud pressure and vibration acceleration, as well as the dependence of the increase in the rate of penetration on the frequency of forced oscillations of the drill bit.


Originality.
Taking into account the influence of the cavitation hydraulic vibrator on the drill rig ROP made it possible:

- to determine the resonant frequencies of pressure oscillations of the mud of the drilling tool, for the effective removal of drilled rock at the point of its contact with the drilling tool, and the longitudinal vibration accelerations of the drilling tool, to speed up rate of penetration during the construction of a well;

- to evaluate the effectiveness of using a cavitation hydraulic vibrator in comparison with a high-frequency mechanical vibrator. For the studied modes of operation of the hydraulic vibrator at values of the cavitation parameter = 0.19, the well rate of penetration increases by 40 % compared to the traditional rotary method and by 26 % compared to the vibratory hammer. For the cavitation operating mode of the hydraulic vibrator = 0.41, the increase in the rate of penetration is 62 and 37 %, respectively. At the same time, the operating efficiency of the hydraulic vibrator was ensured at the resonant frequencies of the mud pressure with a frequency of 1,580 Hz at = 0.19 and 1,980 Hz at = 0.41.


Practical value.
For a specific design of the cavitation hydraulic vibrator as part of a drill string, by changing the frequency of the drill bit vibration impact on the rock, resonant frequencies are established that ensure the high ROP of the well.



Keywords:
cavitation hydraulic vibrator, drill bit, rock resonant frequency, rate of penetration

References.


1. Zhulay, Yu., & Nikolayev, O. (2021). Sonic Drilling with Use of a Cavitation Hydraulic Vibrator. In ‘Mining Technology, IntechOpen, (pp. 81-100). London. https://doi.org/10.5772/intechopen.100336.

2. Shi, H., Li, G., Huang, Z., & Shi, S. (2014). Properties and testing of a hydraulic pulse jet and its application in offshore drilling. Petroleum Science, 11(3), 401-407. https://doi.org/10.1007/s12182-014-0354-1.

3. Li, G., Shi, H., Niu, J., Huang, Z., Tian, S., & Song, X. (2010). Hydraulic Pulsed Cavitating Jet Assisted Deep Drilling: An Approach to Improve Rate of Penetration. Society of Petroleum Engineers. https://doi.org/10.2118/130829-MS.

4. Wang, W., Liu, G., Li, J., Zha, C., & Lian, W. (2021). Numerical simulation study on rock-breaking process and mechanism of compound impact drilling. Energy Reports. Retrieved from https://www.elsevier.com/locate/egyr.

5. Hazbeh, O., Khezerloo-ye Aghdam, S., Ghorbani, H., Mohamadian, N., Ahmadi Alvar, M., & Moghadasi, J. (2020). Comparison of accuracy and computational performance between the machine learning algorithms for rate of penetration in directional drilling well. Petroleum Research, 271-282. https://doi.org/10.1016/j.ptlrs.2021.02.004.

6. Babapour, S., & Butt, S. D. (2014). Investigation of Enhancing Drill cuttings Cleaning and Penetration Rate Using Cavitating Pressure Pulses. American Rock Mechanics Association. 48 th U.S. Rock Mechanics/Geomechanics Symposium, (pp. 1-6). Minneapolis, Minnesota. Retrieved from https://www.onepetro.org/conference-paper/ ARMA-20147751.

7. Xin Cao, X., Kozhevnykov, A., Dreus, A., & Liu, B.-C. (2019). Diamond core drilling process using intermittent flushing mode. Arabian Journal of Geosciences, 12. https://doi.org/10.1007/s12517-019-4287-2.

8. Thorp, N. J., Hareland, G., Elbing, B. R., & Nygaard, R. (2016). Modelling of a Drill Bit Blaster. American Rock Mechanics Association, 50 th U.S. Rock Mechanics/Geomechanics Symposium, 26-29 June, (pp. 1-7), Houston, Texas. Retrieved from https://www.onepetro.org/conference-paper/ARMA-2016-451.

9. Tian, J., Fan, C., Zhang, T., & Zhou, Y. (2022). Rock breaking mechanism in percussive drilling with the effect of high-frequency torsional vibration. Energy sources, part A. https://doi.org/10.1080/15567036.2019.1650138.

10. Omojuwa, E., Ahmed, R., & Acquaye, J. (2019). Mathematical Modeling of Axial Oscillation Tools in High-Angle Wells. Journal Applied Mechanical Engineering, 8(1). https://doi.org/10.35248/2168-9873.19.8.316.

11. Zhao, Y., Zhang, C., Zhang, Z., Gao, K., Li, J., & Xie, X. (2021). The rock breaking mechanism analysis of axial ultra-high frequency vibration assisted drilling by single PDC cutter. Journal of Petroleum Science and Engineering. https://doi.org/10.1016/j.petrol.2021.108859.

12. Wu, X.-Y., Zhang, Y.-Q., Tan, Y.-W., Li, G.-S., Peng, K.-W., & Zhang, B. (2022). Flow-visualization and numerical investigation on the optimum design of cavitating jet nozzle. Petroleum Science, 2284-2296. https://doi.org/10.1016/j.petsci.2022.05.016.

13. Mu, Z., Huang, Z., Sun, Z., Wu, X., Li, G., & Song, X. (2022). Experimental study on dynamic characteristics of axi-al-torsional coupled percussive drilling. Journal of Petroleum Science and Engineering. https://doi.org/10.2139/ssrn.4186014.

14. Feng, J., Yan, T., Cao, Y., & Sun, S. (2022). Ultrasonic-Assisted Rock-Breaking Technology and Oil and Gas Drilling Applications: A Review. Energies. https://doi.org/10.3390/en15228394.

15. Sun, Bu C. G., Hu, P. D., & Xia, B. R. (2017). The transient impact of the resonant flexible drill string of a sonic drill on rock. International Journal of Mechanical Sciences, 29-36. https://doi.org/10.1016/j.ijmecsci.2017.01.01.

16. Nikolayev, O., Zhulay, Yu., Kvasha, Yu., & Dzoz, N. (2020). Determination of the vibration accelerations of drill bits with the rotative-vibration well drilling method using the cavitation hydrovibrator. Journal Mining and Mineral Engineering, 102-120. https://doi.org/10.1504/ijmme.2020.108643.

17. Zhulay, Yu., & Nikolayev, O. (2021). Evaluation of hydraulic power of drilling string with a cavitation hydrovibrator. Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, (3), 31-37. https://doi.org/10.33271/nvngu/2021-3/031.

18. Zhulay, Yu., Nikolayev, O., & Kvasha, Yu. (2022). Estimation of the Mechanical Oscillatory Power of the Drill String for Rational Sonic Drilling. Mechatronics and Automation Technology, 261-270. https://doi.org/10.3233/ATDE221175.

19. Tian, J., Zhi, Z., Li, Y., Yang, L., Wu, C., Liu, G., & Yuan, C. (2019). Vibration analysis of new drill string system with hydro-oscillator in horizontal well. Journal of Mechanical Science and Technology, 2443-2451. https://doi.org/10.1007/s12206-016-0504-z.

 

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ISSN (print) 2071-2227,
ISSN (online) 2223-2362.
Journal was registered by Ministry of Justice of Ukraine.
Registration number КВ No.17742-6592PR dated April 27, 2011.

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