Evaluation of hydraulic power of drilling string with a cavitation hydrovibrator

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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.


повний текст / full article



Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2021, (3): 031 - 037

https://doi.org/10.33271/nvngu/2021-3/031



Abstract:



Purpose.
To develop a method for assessing the drill string hydraulic energy based on mathematical modeling of dynamic processes at the drill string with a hydraulic vibrator rock system, taking into account the nonlinear dependence of system dissipative losses on the drill string vibration amplitudes at drill operating modes.


Methodology.
Methods are based on experimental and theoretical studies on the drill string dynamic parameters and the evaluation of efficiency of converting stationary fluid flow into pulsating flow.


Findings.
The results are presented in the form of calculated and experimental dependences of pressure, volumetric flow rate, vibration accelerations and hydraulic vibrational power in the section of the rock cutting tool on the criterion parameter of cavitation .


Originality.
Taking into account the influence of the string elements vibration amplitude on dissipative losses, made it possible to obtain an acceptable agreement with the drilling experimental data as well as:

- to determine the peak to peak (from 43.5 to 9.8 kW) and average (from 9.8 to 2.35 kW) values of hydraulic oscillatory power at the cavitation parameter range = 0.120.475;

- to evaluate the efficiency of converting the drilling fluid stationary flow power at the inlet to the hydraulic vibrator into the oscillatory power (for the oscillation period) on the rock cutting tool. Within the investigated range of the drilling operation parameter, the maximum calculated value of the efficiency was approximately 76% with the value of the cavitation parameter t equal to 0.16, and the minimum efficiency value was 19% at = 0.475.


Practical value.
Practical value of the results obtained is that the improved mathematical model of the drill-rock dynamic system allows establishing a rational mode of cavitation hydraulic vibrator operation at the drill string design stage to implement acceptable levels of hydraulic power on the drill bit.



Keywords:
mathematical modeling, drill string, cavitation hydraulic vibrator, drill bit, hydraulic oscillation power

References.


1. Smolyanitsky, B.N., Repin, A.A., & Danilov, B.B. (2013). Improving the efficiency and durability of pulse machines for the construction of extended wells in rock massifs. Novosibirsk: Siberian Branch of the Russian Academy of Sciences. Retrieved from https://rucont.ru/efd/279649.

2. Gorodilov, L.V. (2018). Analysis of the dynamics and characteristics of the main classes of volume type self-oscillating hydroshock systems. Problems of Mechanical Engineering and Machine Reliability, (1), 22-30.

3. Gorodilov, L.V., Kudryavtsev, V.G., & Pashina, O.A. (2016). Spreader of hydraulic shock devices. (Russian Patent No. 165144).

4. Wittig, V., Bracke, R., & Hyun-Ick, Yo. (2015). Hydraulic DTH Fluid/Mud Hammers with Recirculation Capabilities to Improve ROP and Hole Cleaning For Deep, Hard Rock Geothermal Drilling. Proceedings World Geothermal Congress Melbourne, 1-9.

5. Keskiniva, M., Piispanen, J., & Esko, M. (2015). Percussion device (USA Pat. 9108311). USA. Sandvik Mining and Construction (Finland).

6. Nikolayev, O., Zhulay, Yu., Kvasha, Yu., & Dzoz, N. (2020). Evaluation of the vibration accelerations of drill bit for the well rotative-vibration drilling using the cavitation hydrovibrator. International Journal of Mining and Mineral Engineering (IJMME),11(2), 102-120. https://doi.org/10.1504/IJMME.2020.108643.

7. Khorshidian, H., Butt, S.D., & Arvani, F. (2014). Influence of High Velocity Jet on Drilling Performance of PDC Bit under Pressurized Condition. American Rock Mechanics Association. 48th U.S. Rock Mechanics/Geomechanics Symposium, 14 June, Minneapolis, Minnesota, (p.6). Retrieved from https://www.onepetro.org/conference-paper/ARMA-20147465.

8. Xiao, Y., Zhong, J., Hurich, C., & Butt, S.D. (2015). Micro-Seismic Monitoring of PDC Bit Drilling Performance during Vibration Assisted Rotational Drilling. American Rock Mechanics Association, 49th U.S. Rock Mechanics/Geomechanics Symposium, (pp. 1-7). San Francisco, California. Retrieved from https://www.onepetro.org/confer-ence-paper/ARMA-2015-474/.

9. Thorp, N.J., Hareland, G., Elbing, B.R., & Nygaard, R. (2016). Modelling of a Drill Bit Blaster. American Rock Mechanics Association, 50th U.S. Rock Mechanics/Geomechanics Symposium, (pp. 1-7). Houston, Texas. Retrieved from https://www.onepetro.org/conference-paper/ARMA-2016451.

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

11. Liu,Sh., Li,G., Tian, Sh., &Zhao, X. (2015). Application of Hydraulic Pulsed Jet Generator for ROP Enhancement in Shale Gas Well. Offshore Mediterranean Conference and Exhibition, (p. 7). Ravenna, Italy, Retrieved from https://www.onepetro.org/conference-paper/OMC-2015-394.

12. Gensheng Li, Huaizhong Shi, Jilei Niu, Zhongwei Huang, Shonceng Tian, & Xianzhi Song (2010). Hydraulic Pulsed Cavitating Jet Assisted Deep Drilling: An Approach to Improve Rate of Penetration Society of Petroleum Engineers. International Oil and Gas Conference and Exhibition in China, Beijing, China. https://doi.org/10.2118/130829-MS.

13. Huaizhong, Sh., Gensheng, L., Zhongwei, H., & Shuaishuai, Sh. (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/sl2182-014-0354-l.

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

15. Dreus, A., Kozhevnikov, A., Lysenko, K., & Sudakov, A. (2016). Investigation of heating of the drilling bits and definition of the energy efficient drilling modes. Eastern-European Journal of Enterprise Technologies, 3(7(81)), 41-46. https://doi.org/10.15587/1729-4061.2016.71995.

16. Nikolaev, O.D., Khoryak, N.V., Serenko, V.A., Klimenko, D.V., Khodorenko, V.F., & Bashliy, I.D. (2016). Considering dissipative forces for mathematical modeling longitudinal vibrations of liquid launch vehicle body. Technical Mechanics, (2), 16-31.

17. Chen, X., Yang, J., & Gao-Drilling, D. (2018). Drilling Performance Optimization Based on Mechanical Specific Energy Technologies. https://doi.org/10.5772/intechopen.75827.

18. Minghui, W., Gensheng, L., Huaizhong, Sh., Shuaishuai, Sh., Zhaokun, L., & Yi, Zh. (2016). Theories and Applications of Pulsed-Jet Drilling With Mechanical Specific Energy. Society of Petroleum Engineers, 21, 8. https://doi.org/10.2118/174550-PA.

 

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